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FEATURES FOUR 192 kHz DACs/ADCs
Two independent stereo DAC/ADC pairs Simultaneous record of two stereo channels Simultaneous playback of two stereo channels Independent 8, 11.025, 16, 22.05, 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz sample rates 16, 20, and 24-bit resolution Selectable stereo mixer on outputs
High Definition Audio SoundMAX(R) Codec AD1984
S/PDIF OUTPUT
Supports 44.1, 48, 88.2, 96, 176.4, and 192 kHz sample rates 16, 20, and 24-bit data; PCM, and AC3 formats Digital PCM gain control
DEDICATED AUXILLARY PINS
Stereo CD/auxillary I/O port w/GND sense Stereo auxillary/dock I/O port Mono out pin for internal speakers or telephony
ENHANCED FEATURES
Two stereo headphone amplifiers Microsoft Vista premimum logo for notebook and desktop 96+ dB audio outputs, 90+ dB audio inputs Internal 32-bit arithmetic for greater accuracy Impedance and presence detection on all jacks Three independent microphone bias pins Digital and analog PCBeep Three general-purpose digital I/O (GPIO) pins 3.3 V analog and digital supply voltages Advanced power management modes 48-lead, Pb-free LFCSP_VQ package
4-CHANNEL DIGITAL MICROPHONE INTERFACE
Four 192 kHz digital microphone channels Supports multiple microphone types Two microphones per pin (four total) One microphone per pin (two total) Low pin count, uses 3 pins Stereo or quad array support 8, 11.025, 16, 22.05, 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz sample rates 16, 20, and 24-bit resolution
AD1984
H D A U D I O I N T E R F A C E
DAC1 DAC0
HP
PORT A PORT D MONO OUT
HP
S/PDIF OUT DM_1/2 DIGITAL MICROPHONE DM_3/4
PORT E PORT F
DM_CLK DIGITAL PCBEEP PCBEEP PORT C ADC0 PORT B
ADC1
Figure 1. Functional Block Diagram
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O.Box 9106, Norwood, MA 02062-9106 U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 (c)2007 Analog Devices, Inc. All rights reserved.
AD1984
CONTENTS
AD1984 Specifications .............................................. 4 Test Conditions ....................................................... 4 Performance ........................................................... 4 General Specifications ............................................... 4 HD-Audio Link Specification ..................................... 7 Power Down States .................................................. 7 Absolute Maximum Ratings ....................................... 8 ESD Sensitivity ........................................................ 8 Environmental Conditions ......................................... 8 Pin Configuration and Function Descriptions ................. 9 Digital Microphone Interface Timing Specifications ....... 12 HD Audio Widgets ................................................ 16 AD1984 HD Audio Parameter .................................. 17 Outline Dimensions ............................................... 20 Ordering Guide ..................................................... 20
REVISION HISTORY
1/07-Rev 0: Initial version
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AD1984
GENERAL DESCRIPTION
The AD1984 family of audio codecs and SoundMAX(R) software provides superior High Definition audio quality that exceeds Vista Premium performance. The AD1984 has four 192 kHz DACs, four 192 kHz ADCs, S/PDIF output, a four-channel digital microphone interface, Digital Beep and analog PCBeep. These features make the AD1984 the right choice for desktop and notebook PCs where performance is key. The AD1984 is available in a 48-lead, Pb-free frame chip scale package in both reels and trays. See Ordering Guide on Page 20.
ADDITIONAL INFORMATION
This data sheet provides a general overview of the AD1984 SoundMAX codec's architecture and functionality. Additional information on the AD1984 is available in the AD1984 Programmers Reference Manual. Please contact your local ADI sales representitive for more information. For information on SoundMAX codecs and software see Analog Devices website at http://www.analog.com/soundMAX.
JACK CONFIGURATIONS
The guideline shown in Table 1 should be used when selecting ports for particular functions. The symbols used in this table are defined as: LI = Line Level Input, LO = Line Level Output, HP = Output capable of driving headphone load, MIC = Input supports microphones with MIC bias and boost amplifier. Table 1. Port Assignments
Port Port A Port B Port C Port D Port E Port F MONO_OUT HP x MIC x x x x x x x x LO x LI x x x x
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AD1984
AD1984 SPECIFICATIONS
TEST CONDITIONS
Parameter Temperature Digital Supply Analog Supply MIC_BIAS_IN (via Low-Pass Filter) Sample Rate FS Input Signal (Frequency Sine Wave) Amplitude for THD + N Analog Output Pass Band DAC ADC Test Condition 25C 3.3 V 3.3 V 5.0 V 48 kHz 1008 Hz -3.0 dB Full Scale 20 Hz to 20 kHz 10 k Output Load: Line Out tests 32 Output Load: Headphone Tests 0 dB Gain
PERFORMANCE
Parameter Line Out Drive (10 k loads--DAC to Pin) Total Harmonic Distortion (THD + N) Dynamic Range (-60 dB in ref to fS A-Weighted) Signal-to-Noise Ratio Headphone Drive (32 loads--DAC to Pin) Total Harmonic Distortion (THD + N) Dynamic Range (-60 dB in ref to fS A-Weighted) Signal-to-Noise Ratio Microphone/Line In (Pin to ADC, Mic Boost = 0 dB) Total Harmonic Distortion (THD + N) Dynamic Range (-60 dB in ref to fS A-Weighted) Signal-to-Noise Ratio Min Typ -86 96 96 -80 96 96 -81 90 90 Max Unit dB dB dB dB dB dB dB dB dB
GENERAL SPECIFICATIONS
Parameter DIGITAL DECIMATION AND INTERPOLATION FILTERS1 Pass Band - fS (kHz) = 8 ~ 192 Pass-Band Ripple- fS (kHz) = 8 ~ 192 Stop Band - fS (kHz) = 8 ~ 192 Stop-Band Rejection - fS (kHz) = 8 ~ 192 Group Delay - fS (kHz) = 8 ~ 192 Group Delay Variation Over Pass Band ANALOG-TO-DIGITAL CONVERTERS Resolution Gain Error (Full-Scale Span Relative to Nominal Input Voltage)2 Interchannel Gain Mismatch (Difference of Gain Errors) ADC Offset Error1 ADC Crosstalk1 Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L) Line_In to Other Min 0 0.6 fS -100 20 0 24 0.2 10 0.5 5 Typ Max 0.4 fS 0.005 Unit Hz dB Hz dB 1/fS s Bits % dB mV dB dB
-85 -100
-80
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AD1984
Parameter DIGITAL-TO-ANALOG CONVERTERS Resolution Gain Error (Full Scale Span Relative to Nominal Input Voltage)1 Interchannel Gain Mismatch (Difference of Gain Errors) Total Audible Out-of-Band Energy (Measured from 0.6 x fS to 20 kHz)1 DAC Crosstalk (Input L, Zero R, Measure R_OUT; Input R, Zero L, Measure L_OUT)1 DAC VOLUMES Step size (DAC-0, DAC-1) Output Gain/Attenuation Range Mute Attenuation of 0 dB Fundamental1 ADC VOLUMES Step size (ADCSEL-0, ADCSEL-1) PGA Gain/Attenuation Range ANALOG MIXER Signal-to-Noise Ratio Input to Output - Ports B, C, or F, to Port D Output Step Size: All Mixer Inputs Input Gain/Attenuation Range: All Mixer Inputs ANALOG LINE LEVEL OUTPUTS Full-Scale Output Voltage: Line out drive enabled Ports A, D, E, F, and Mono Out Output Impedance1 External Load Impedance1 Output Capacitance1 External Load Capacitance ANALOG HP DRIVE OUTPUTS Full-Scale Output Voltage: Line Out Drive Enabled Ports A and D (when HP Drive is Enabled) Output Impedance1 External Load Impedance1 Output Capacitance1 External Load Capacitance1 ANALOG INPUTS Input Voltages - Ports B, C, or E Mic Boost = 0 dB Input Voltages - Microphone Boost Amplifier, Ports B, C, or E Mic Boost = +10 dB Mic Boost = +20 dB Mic Boost = +30 dB Input Impedance PCBEEP Ports B, C, E (Mic Boost = 0 dB) Port F Input Capacitance1 Min Typ 24 10 0.5 -85 -95 1.5 -58.5 -80 1.5 -58.5 95 -1.5 -34.5 1.0 2.83 190 10 15 1000 1.0 2.83 0.5 32 15 1000 +12.0 +22.5 0 Max Unit Bits % dB dB dB dB dB dB dB dB dB dB dB V rms3 V p-p k pF pF V rms3 V p-p pF pF
1 2.83 0.316 0.894 0.1 0.283 0.032 0.089 23 150 45 5
V rms3 V p-p V rms3 V p-p V rms3 V p-p V rms3 V p-p k k k pF
7.5
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AD1984
Parameter MICROPHONE BIAS MIC_BIAS-B, MIC_BIAS-C MIC_BIAS_IN (Pin 33) = +5 V or +3.3 V Min Typ Max Unit
MIC_BIAS_IN (Pin 33) = +5 V MIC_BIAS_IN (Pin 33) = +3.3 V
VREF Setting = Hi-Z VREF Setting = 0 V VREF Setting = 50% VREF Setting = 80% VREF Setting = 100% VREF Setting = 80% VREF Setting = 100% VREF Setting = Hi-Z VREF Setting = 0 V VREF Setting = 50% VREF Setting = 80% VREF Setting = 100%
Hi-Z 0 1.65 3.7 3.9 2.86 3.0 Hi-Z 0 1.65 2.86 3.0 1.6 DVIO x 0.60 0 DVIO x 0.72 0 -150 -50 AVDD x 0.60 0 AVDD x 0.72 0 -150 -50 AVDD x 0.72 0 AVDD x 0.60 0 -150 -50 AVDD AVDD x 0.10 AVDD AVDD x 0.24 AVDD AVDD x 0.24 AVDD AVDD x 0.10 DVIO DVIO x 0.24 DVIO DVIO x 0.10
V dc V dc V dc V dc V dc V dc V dc V dc V dc V dc V dc mA V V V V nA A V V V V nA A V V V V nA nA
MIC_BIAS-E (When enabled as BIAS)
Output Drive Current VREF Setting = 50%, 80%, or 100% GPIO 0 Input Signal High (VIH) Input Signal Low (VIL) Output Signal High (VOH) IOUT = -500 A IOUT = +1500 A Output Signal Low (VOL) Input Leakage Current (Signal High) (IIH) Input Leakage Current (Signal Low) (IIL) GPIO 1 and 2 Input Signal High (VIH) Input Signal Low (VIL) IOUT = -500 A Output Signal High (VOH) Output Signal Low (VOL) IOUT = +1500 A Input Leakage Current (Signal High) (IIH) Input Leakage Current (Signal Low) (IIL) DM Clock Output Signal High (VOH) IOUT = -500 A IOUT = +1500 A Output Signal Low (VOL) DM 1/2 and 3/4 Input Signal High (VIH) Input Signal Low (VIL) Input Leakage Current (Signal High) (IIH) Input Leakage Current (Signal Low) (IIL) POWER SUPPLY Analog (AVDD) 3.3 V 5% Power Supply Range Power Dissipation Supply Current Digital (DVDD) 3.3 V 10% Power Supply Range Power Dissipation Supply Current Digital I/O (DVIO) 3.3 V 10% Power Supply Range Power Dissipation Supply Current Power Supply Rejection (reference to fS 100 mV p-p Signal @ 1 kHz)1
1 2
3.13
3.30 99 31 3.30 162 58 3.30 3.96 1.2 80
3.46
V mW mA V mW mA V mW mA dB
2.97
3.63
2.97
3.63
Guaranteed but not tested. Measurements reflect main ADC. 3 RMS values assume sine wave input.
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AD1984
HD-AUDIO LINK SPECIFICATION
High-definition audio signals comply with the High-definition Audio specification. Please refer to these specifications at: http://www.intel.com/standards/hdaudio/
POWER DOWN STATES
Parameter Function node in D0, all nodes active Function node in D31 Codec in RESET Individual block power savings DAC pair powered down saves (each) ADC pair powered down saves (each) Mixer power control (and associated amps) saves DM_FLT pair powered down saves (each) DM_CLK powered down saves2 MIC_BIAS powered down saves3
1
IDVDD Typ 58 21 3 6 5 0 5 0 0
IAVDD Typ 31 2 3 5 3 2 0 1 0.5
Unit mA mA mA mA mA mA mA mA mA
Function node D3 state powers down all nodes except for the VREF, Mixer and MIC_BIAS nodes which have independent power controls. VREF should be kept active when background functions such as jack presence detection or analog pass-through are required. Mixer should be kept active when analog pass-through is required. MIC_BIAS can be disabled if microphones are not in use in the power-down state. 2 Test conditions: 30 pF load, 2.0 MHz frequency, 3.3 V AVDD. 3 Powering down the MIC_BIAS powers down all port MIC_BIAS pins. This disables all microphone bias circuits set to 100% or 50%, setting them to the Hi-Z state. The 0 and Hi-Z states remain unaffected by the MIC_BIAS power state.
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AD1984
ABSOLUTE MAXIMUM RATINGS
Stresses greater than those listed below may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Power Supplies Digital (DVDD) Digital I/O (DVIO) Analog (AVDD) Input Current (Except Supply Pins) Analog Input Voltage (Signal Pins) Digital Input Voltage (Signal Pins) Ambient Temperature (Operating) Storage Temperature Min -0.30 -0.30 -0.30 -0.30 -0.30 0 -65 Max Unit +3.65 V +3.65 V +3.65 V 10.0 mA AVDD + 0.3 V DVIO + 0.3 V +70 C +150 C
ENVIRONMENTAL CONDITIONS
Ambient Temperature Rating TAMB = TCASE - (PD x CA) TCASE = Case Temperature in C PD = Power Dissipation in W CA = Thermal Resistance (Case-to-Ambient) JA = Thermal Resistance (Junction-to-Ambient) JC = Thermal Resistance (Junction-to-Case) All measurements per EIA-JESD51 with 2S2P test board per EIA-JESD51-7. Table 2. Thermal Resistance
Package LFCSP_VQ JA 47 JC 15 CA 32 Unit C/W
ESD SENSITIVITY
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be take to avoid performance degradation or loss of functionality.
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AD1984
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NC = NO CONNECT NC = NO CONNECT NC = NO CONNECT NC = NO CONNECT NC = NO CONNECT
SPDIF-OUT
GPIO_0/EAPD
PORT-A_R
PORT-A_L
DM_CLK
48 DV CORE DM_1/2 DV I/O DM_3/4 SDATA_OUT BIT_CLK DV SS SDATA_IN DV DD SYNC RESET PCBEEP 1 2 3 4 5 6
47
46
45
44
43
42
41
40
39
AVDD
AVSS
38
37 36 35 34 33 32 31 PORT-D_R PORT-D_L SENSE_B/SRC_A MIC_BIAS_IN MONO_OUT GPIO_1/MIC_BIAS-E GPIO_2 MIC_BIAS-C MIC_BIAS-B VREF_FILT AVSS AV DD
AD1984JCPZ
TOP VIEW
7 (Not To Scale) 8 9 10 11 12 13
SENSE_A/SRC_B
30 29 28 27 26 25
14
PORT-E_L
15
PORT-E_R
16
PORT-F_L
17
PORT-F_R
18
NC = NO CONNECT
19
CD_GND (PORT F)
20
NC = NO CONNECT
21
PORT-B_L
22
PORT-B_R
23
PORT-C_L
24
PORT-C_R
Figure 2. AD1984 48-Lead Package and Pinout
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AD1984
Table 3. AD1984 Pin Descriptions
Mnemonic DIGITAL INTERFACE SDATA_OUT BIT_CLK SDATA_IN SYNC RESET DIGITAL I/O DM_1/DM_2 DM_3/DM_4 DM_CLK GPIO_2 GPIO_1/MIC_BIAS-E Pin No. 5 6 8 10 11 2 4 46 30 31 I/O I I I/O I I I I O I/O I/O Description Link Serial Data Output. AD1984 input stream. Clocked on both edges of the BIT_CLK. Link Bit Clock. 24.000 MHz serial data clock . Link Serial Data Input. AD1984 output stream clocked only on one edge of BIT_CLK. Link Frame Sync. Link Reset. AD1984 master hardware reset. Digital microphone 1 and 2 inputs (for bi-phase microphones), or digital microphone 1 input (for single-phase microphones). Digital microphone 3 and 4 inputs (for bi-phase microphones), or digital microphone 2 input (for single-phase microphones). Clock to drive external digital microphones. General Purpose Input/Output Pins. Digital signals used to control or sense external circuitry. General Purpose I/O/Microphone Bias for Port E. Capable of Hi-Z, 1.65 V, and 2.86 V. Pin 31 shares functionality between GPIO_1 (default) and MIC_BIAS_E. These functions are mutually exclusive and the GPIO function takes priority over the MIC_BIAS function. When the GPIO enable bit is 0, Pin 31 functions as a MIC_BIAS pin associated with Port E. EAPD/General Purpose Input/Output pin. Pin 47 shares functionality between GPIO_0 and EAPD. These functions are mutually exclusive and the EAPD function takes priority over the GPIO function. By default, the pin is in a Hi-Z state. External resistors should be used to insure the proper circuit state when this pin is in Hi-Z. S/PDIF_OUT - Supports S/PDIF output. Jack Sense A-D Input/Sense B drive. Jack Sense E-F Input/Sense A drive.
GPIO_0/EAPD
47
I/O
Monaural Input from system for Analog PCBeep. Auxiliary Input/Output Left Channel. Auxiliary Input/Output Right Channel. Auxiliary Input/Output Left Channel. Auxiliary Input/Output Right Channel. CD-Audio-Analog-Ground-Reference. Must be connected to AGND via a 0.1 F capacitor if not in use as CD_GND. MUST always be ac coupled. Front Panel Stereo MIC/Line-In. LI, MIC Port B_L 21 Front Panel Stereo MIC/Line-In. LI, MIC Port B_R 22 Rear Panel Stereo MIC/Line-In. LI, MIC Port C_L 23 Rear Panel Stereo MIC/Line-In. LI, MIC Port C_R 24 Monaural Output to Internal Speaker or Telephony Subsystem Speakerphone. LO MONO_OUT 32 Port D_L Rear Panel Headphone/Line-Out. HP, LO 35 Port D_R Rear Panel Headphone/Line-Out. HP, LO 36 Port A_L Front Panel Headphone/Line-Out. HP, LO 39 Port A_R Front Panel Headphone/Line-Out. HP, LO 41 The symbols used in this table are defined as: I = Input, O = Output, LI = Line Level Input, LO = Line Level Output, HP = Output capable of driving headphone load, MIC = Input supports microphones with MIC bias and boost amplifier. 12 14 15 16 17 19 LI LI, MIC, LO LI, MIC, LO LI, LO LI, LO I
S/PDIF_OUT JACK SENSE AND EAPD SENSE_A/SRC_B SENSE_B/SRC_A ANALOG I/O PCBEEP Port E_L Port E_R Port F_L Port F_R CD_GND
48 13 34
O I/O I/O
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AD1984
Table 3. AD1984 Pin Descriptions (Continued)
Mnemonic FILTER/REFERENCE VREF _FILT MIC_BIAS-B MIC_BIAS-C Pin No. 27 28 29 I/O O O O Description Voltage Reference Filter. Switchable Microphone Bias. For use with Port B (Pins 21, 22). Switchable Microphone Bias. For use with Port C (Pins 23, 24). Both MIC bias pins are capable of Hi-Z, 0 V, 1.65 V, 3.7 V, and 3.9 V (with 5.0 V on Pin 33), Hi-Z, 0 V, 1.65 V, 2.86 V, and 3.0 V (with 3.3 V on Pin 33). CAUTION: DO NOT APPLY 3.3 V TO THIS PIN! Filter connection for internal core voltage regulator. This pin must be connected to filter caps: 10 F, 1.0 F, and 0.1F connected in parallel between Pin 1 and DVSS (Pin 7).
DVCORE
1
O
POWER AND GROUND DVIO 3.3V DVSS DVDD 3.3 V
Link Digital I/O Voltage Reference. 3.3 V Digital supply return (ground). Digital supply voltage 3.3 V . This is regulated down to DVCORE on Pin 1 to supply the internal digital core internal to the AD1984. AVDD 3.3 V 25, 38 I CAUTION: DO NOT APPLY 5 V TO THESE PINS! Analog supply voltage 3.3 V ONLY. Note: AVDD supplies should be well regulated and filtered as supply noise degrades audio performance. MIC_BIAS_IN 33 I Source power for microphone bias boost circuitry. 5.0 V or 3.3 V Connect this pin to 5.0 V via a low-pass filter. When connected this way the AD1984 is capable of providing +3.9 V as a mic bias to all of the mic bias pins (except on Pin 31). If 5 V is not available, connect this pin to +3.3 V (AVDD) via a low-pass filter. The AD1984 produces a mic bias voltage relative to the AVDD supply (typically 3.0 V @ AVDD = 3.3 V). 26, 42 I Analog supply return (ground). AVSS should be connected to DVSS using a conductive AVSS trace under, or close to, the AD1984. The symbols used in this table are defined as: I = Input, O = Output, LI = Line Level Input, LO = Line Level Output, HP = Output capable of driving headphone load, MIC = Input supports microphones with MIC bias and boost amplifier.
3 7 9
I I I
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AD1984
DIGITAL MICROPHONE INTERFACE TIMING SPECIFICATIONS
The digital microphone interface can support one, two, or four digital microphones using two or three codec pins. Both uniplex (one mic per data pin) and multiplex (two mics sharing the same data pin) are supported. These configurations are shown Table 4. Digital Microphone Timing Parameters
Parameter Timing Requirements t0 DM_CLK (1.5 MHz) Period Duty Cycle t0 DM_CLK (2.0 MHz) Period Duty Cycle DM_CLK (3.0 MHz) Period t0 Duty Cycle DM_CLK Rise Time t1 t2 DM_CLK Fall Time DM_CLK Edge to Data Valid t3 t4 Data Setup to DM_CLK Edge Data Hold from DM_CLK Edge t5 t6 DM_CLK Edge to Data Hi-Z Min Typ 667 60/40 500 50/50 333 50/50 5 5 40 100 5 7 Max Unit ns % ns % ns % ns ns ns ns ns ns
in Figure 3, Figure 4, Figure 6, and Figure 7. The interface can generate a microphone clock at 1.5 MHz, 2.0 MHz, or 3.0 MHz to suit quality and power requirements.
OFF -CHIP MIC 1
ON CHIP
D DM_1/2 >
Q
GAM NID:05 DIGITAL F ILTER
LEFT
D >
Q
MUX
GAM
RIGHT
D DM_3/4 >
Q
GAM NID:06 D IGITAL FILTER
LEFT
D >
Q
GAM
RIGHT
GAM = GAIN, ATTENUATE, MUTE
DM-CLK GENERATOR DM_CLK SWAP L/R
Figure 3. Uniplex Digital Microphone, Mono Interface
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HD-AUDIO INTERFACE
AD1984
OFF -CHIP MIC 1
ON CHIP
D DM_1/2 >
Q
GAM NID:05 DIGITAL F ILTER
LEFT
D > MIC 2 D DM_3/4 >
Q
MUX
GAM
RIGHT
Q
GAM NID:06 DIGITAL F ILTER
LEFT
D >
Q
GAM
RIGHT
GAM = GAIN , ATTENUATE, MUTE
DM-CLK GENERATOR DM_CLK SWAP L/R
Figure 4. Uniplex Microphone, Stereo Interface
t0 t2 t1
DM_CLK
t4 t3
DM_1/2 DM_3/4 DATA VALID
Figure 5. Uniplex Microphone Timing
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HD-AUDIO INTERFACE
AD1984
OFF -CHIP MIC 1
ON CHIP
D DM_1/2 >
Q
GAM NID :05 DIGITAL FILTER
LEFT
D MIC 2 >
Q
MUX
GAM
RIGHT
D DM_3/4 >
Q
GAM NID:06 DIGITAL FILTER
LEFT
D >
Q
GAM
RIGHT
GAM = GAIN , ATTENUATE, MUTE
DM-CLK GENERATOR DM_CLK SWAP L/R
Figure 6. Multiplex Digital Microphone, Stereo Interface
OFF-CHIP MIC 1
ON CHIP LEFT D Q GAM NID:05 DIGITAL F ILTER RIGHT D > Q MUX GAM
DM_1/2 > MIC 2 HD-AUDIO INTERFACE
MIC 3 D DM_3/4 > MIC 4 D > GAM = GAIN, ATTENUATE , MUTE Q GAM NID :06 DIGITAL FILTER RIGHT Q GAM LEFT
DM_CLK SWAP L/R
DM-CLK GENERATOR
Figure 7. Multiplex Digital Microphone, Quad Interface
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HD-AUDIO INTERFACE
AD1984
t0 t2 t1
DM_CLK
t3
t4
MIC 1 DATA VALID
t6
MIC 1 DATA VALID
DM_1/2 DM_3/4
t5 t3 t4 t6
MIC 2 DATA VALID
t5
Figure 8. Multiplex Microphone Timing
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AD1984
HD AUDIO WIDGETS
Table 5. HD Audio Widgets
Node ID 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 Name ROOT FUNCTION S/PDIF DAC DAC_0 DAC_1 Dig Mic Conv 1/2 Dig Mic Conv 3/4 Port A Mixer ADC_0 ADC_1 Port D Mixer Port F Mixer ADC Selector 0 ADC Selector 1 Mono Out Selector Port F Out Selector Digital Beep Port A (Headphone) Port D (Line Out) Mono Out Port B (Mic In) Port C (Line In) Port F (Aux In/Out) Dig Mic 1/2 Pin Dig Mic 3/4 Pin Mixer Power Down Analog PCBeep S/PDIF Out Pin Port E (Dock I/O) VREF Power Down Mono Out Mixer Stereo Mix-Down Analog Mixer Mixer Output Atten Port A Out Selector Port E Out Selector Port E Mixer Port E Mic Boost BIAS Power Down Type ID x x 0 0 0 1 1 2 1 1 2 2 3 3 3 3 7 4 4 4 4 4 4 4 4 5 4 4 4 F 2 2 2 3 3 3 2 3 F Type Root Function Audio Output Audio Output Audio Output Audio Input Audio Input Audio Mixer Audio Input Audio Input Audio Mixer Audio Mixer Audio Selector Audio Selector Audio Selector Audio Selector Beep Generator Pin Complex Pin Complex Pin Complex Pin Complex Pin Complex Pin Complex Pin Complex Pin Complex Power Widget Pin Complex Pin Complex Pin Complex Vendor Defined Audio Mixer Audio Mixer Audio Mixer Audio Selector Audio Selector Audio Selector Audio Mixer Audio Selector Vendor Defined Description Device identification Designates this device as an audio CODEC S/PDIF digital stream output interface Stereo headphone channel digital/audio converters Stereo front channel digital/audio converters Digital microphone Channel 1, 2 converters Digital microphone Channel 3, 4 converters Mixes the of DAC_(0, 1) and mixer output amps to drive Port A Stereo record Channel 0 audio/digital converters Stereo record Channel 1 audio/digital converters Mixes the DAC_1 and mixer output amps to drive Port D Mixes the DAC_(0, 1) and mixer output amps to drive Port F Selects and amplifies/attenuates the input to ADC_0 Selects and amplifies/attenuates the input to ADC_1 Selects the mono out DAC_(0, 1) Selects the Port F DAC_(0, 1) Internal digital PCBeep signal Headphone jack pins Line out jack pins Monaural output pin (internal speakers or telephony system) Microphone in jack pins Line in jack pins Auxiliary I/O pins Digital microphone 1, 2 input pin Digital microphone 3, 4 input pin Powers down the analog mixer and associated amps External analog PCBeep signal input S/PDIF output pin Analog dock I/O pins Powers down the internal and external VREF circuitry Mixes the DAC_(0, 1) and mixer output amps to drive mono out Mixes the stereo L/R channels to drive mono output Mixes individually gainable analog inputs Attenuates the mixer output to drive the port mixers Selects the Port A DAC_(0, 1) Selects the Port E DAC_(0, 1) Mixes the DAC_(0, 1) and mixer output amps to drive Port E 0 dB, 10 dB, 20 dB, or 30 dB gain boost for Port E Powers down the internal MIC_BIAS_FILT and all MIC_BIAS pins
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AD1984
AD1984 HD AUDIO PARAMETER
Table 6. Root and Function Node Parameters
Vendor ID 00 11D41984 Revision ID 02 00100400 Sub Node Count 04 00010001 00020025 Func. Group Type 05 00000001 Audio F.G. Caps 08 00010C0C GPIO Caps 11 40000003
Node ID 00 01
Name ROOT FUNCTION
Type Root Function
Table 7. SubSystem ID 1
31:16 SSID FUNCTION BFD4 15:8 SKU 00 7:0 Asm ID 00
01
1
The SSID value is set on codec power-up only. SSID is not reset by link or soft reset in order to preserve modifications by BIOS control.
Table 8. Widget Parameters
Node ID 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 Widget Capabilities 09 000004C0 00030311 00000405 00000405 0010050B 0010050B 00200103 00100501 00100501 00200103 00200103 0030010D 0030010D 00300101 00300101 0070000C 0040018D 0040058D 0040050C 0040008B 0040008B 0040018D 00400001 00400001 00500500 00400000 0040030D 0040018D 00F00100 00200103 00200100 0020010B 0030010D 00300101 PCM Size, Rate 0A 000E07FF 000E07E0 000E07FF 000E07FF 000E07FF 000E07FF 000E07FF 000E07FF Stream Formats 0B 00000001 00000005 00000001 00000001 00000001 00000001 00000001 00000001 80000000 80000000 Pin Capabilities 0C Input Amp Capabilities 0D 80000000 Con. List Length 0E 00000003 00000000 00000000 00000001 00000001 00000002 00000001 00000001 00000002 00000002 00000004 00000004 00000002 00000002 00000000 00000001 00000001 00000001 00000000 00000000 00000001 00000000 00000000 00000002 00000000 00000001 00000001 0000000A 00000002 00000001 00000004 00000001 00000002 Output Amp Power States Capabilities 0F 12 00000009 00052727 00000009 00000009 00000009 00000009 00000009 00000009 00052727 00052727
80053627 80053627 80000000
80053627 80053627
0000001F 0001001F 00010010 00003727 00003727 00000037 00000020 00000020 00000020 00000010 00003737
00000009 00000009
800B0F0F 80000000 80000000 80051F1F
00270300 00270300
80000000
00000009 80052727 80000000
80000000 80051F17
80051F1F
Rev. 0 | Page 17 of 20 |
January 2007
AD1984
Table 8. Widget Parameters (Continued)
Node ID 23 24 25 26 Widget Capabilities 09 00300101 00200103 0030010D 00F00100 PCM Size, Rate 0A Stream Formats 0B Pin Capabilities 0C Input Amp Capabilities 0D 80000000 Con. List Length 0E 00000002 00000002 00000001 00000003 Output Amp Power States Capabilities 0F 12
00270300
Table 9. Connection List
Node ID 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 Connections [0-3] 00090801 [4-7] [8-11] 0 I NID 01 1 I NID 08 2 I NID I 09 3 I NID 4 I NID 5 I NID 6 I NID 7 8 9 I NID
I NID I NID
00000017 00000018 00002122 0000000C 0000000D 00002104 0000210F 25209614 25209614 00000403 00000403 00000007 0000000A 0000001F
17 18 03 0C 0D 04 0F 1 14 1 14 03 03 07 0A 1F
21
21 21 16 16 04 04
20 20
25 25
0000000B
0B
00002120 00000002 00000024 8F0A1907 0000210E 0000001E 251A9614 00000020 00000403 00000403 00002123 0000001C 001C1514
20 02 24 07 0E 1E 1 14 20 03 03 23 26 14
21
96111C1A
0000A61E
19 21 16 04 04 21 15
0A
1 0F
1A
1C
11
1 16
1E
1 26
1A
25
Rev. 0 | Page 18 of 20 |
January 2007
AD1984
In Table 10, default configuration values are set on codec power-up only. Default configuration values are not reset by link or soft reset to preserve modifications by BIOS control. Bits 11:9 are reserved. Table 10. Default Configuration Bytes
31:30 ID 11 12 13 14 15 16 17 18 1A 1B 1C Name Port A Port D Mono Out Port B Port C Port F Dig Mic 1/2 Pin Dig Mic 3/4 Pin Analog PCBeep S/PDIF Out Pin Port E Value 0321401F 90130110 901301F0 03A190F0 96A30120 99330121 95A601F0 95A601F0 90F301F0 014511F0 21A1902E Connectivity Jack Fixed Fixed Jack Fixed Fixed Fixed Fixed Fixed Jack Jack 29:28 Location Chasis External Internal Internal External Internal Internal Internal Internal Internal External Separate Position Left N/A N/A Left Bottom Special 3 Top Top N/A Rear Rear Def. Device HP Out Speaker Speaker Mic In Mic In CD Mic In Mic In other SPDIF Out Mic In Conn Type Color 1/8" Jack Green ATAPI Unknown ATAPI Unknown 1/8" Jack Pink ATAPI Unknown ATAPI Unknown Other Digital Unknown Other Digital Unknown ATAPI Unknown Optical Black 1/8" Jack Pink JD OR 0 1 1 0 1 1 1 1 1 1 0 Def Assn. 1 1 F F 2 2 F F F F 2 Seq. F 0 0 0 0 1 0 0 0 0 E 27:24 23:20 19:16 15:12 8 7:4 3:0
Rev. 0 | Page 19 of 20 |
January 2007
AD1984
OUTLINE DIMENSIONS
Dimensions are shown in millimeters.
7.00 BSC SQ
0.60 MAX 0.60 MAX
37 36
0.30 0.23 0.18
48 1
PIN 1 INDICATOR
PIN 1 INDICATOR
TOP VIEW
6.75 BSC SQ
EXPOSED PAD
(BOTTOM VIEW)
5.25 5.10 SQ 4.95
0.50 0.40 0.30
25 24
12 13
0.25 MIN 5.50 REF
1.00 0.85 0.80
12 MAX
0.80 MAX 0.65 TYP 0.05 MAX 0.02 NOM 0.50 BSC
SEATING PLANE
0.20 REF
COPLANARITY 0.08
COMPLIANT TO JEDEC STANDARDS MO-220-VKKD-2
Figure 9. 48-Lead, Pb-Free, Frame Chip Scale Package [LFCSP_VQ] 7 mm x 7 mm Body, Very Thin Quad (CP-48-1)
ORDERING GUIDE
Model AD1984JCPZ1 AD1984JCPZ-REEL1
1
Temperature Range 0C to 70C 0C to 70C
Package Description 48-Lead LFCSP_VQ 48-Lead LFCSP_VQ
Package Option CP-48-1 CP-48-1
Z = Pb-free part.
(c)2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06535-0-1/07(0)
Rev. 0 | Page 20 of 20 |
January 2007

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