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INTEGRATED CIRCUITS
DATA SHEET
TDA8442 I2C-bus interface for colour decoders
Product specification File under Integrated Circuits, IC01 March 1991
Philips Semiconductors
Product specification
I2C-bus interface for colour decoders
GENERAL DESCRIPTION The TDA8442 provides control of four analogue functions and has one high-current and two switching outputs. Control of the IC is performed via the two-line, bidirectional I2C-bus. Features * Four analogue control outputs * One high-current output port (npn open emitter) * Two switching output ports (npn collector with internal pull-up resistor) * I2C-bus slave receiver * Power-down reset. QUICK REFERENCE DATA PARAMETER Supply voltage (pin 9) Supply current Total power dissipation Operating ambient temperature range no outputs loaded no outputs loaded CONDITIONS SYMBOL VP IP Ptot Tamb 8 - -20 MIN. 10.8 13 - - TYP. 12.0 18 1 + 70 PACKAGE OUTLINE
TDA8442
16-lead DIL; plastic (SOT38); SOT38-1; 1996 July 23.
MAX 13.2 V
UNIT mA W C
Fig.1 Block diagram.
March 1991
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Philips Semiconductors
Product specification
I2C-bus interface for colour decoders
PINNING PIN 1 2 3 4 5 6 SYMBOL DAC1 DAC2 DAC3 SDA SCL P2 DESCRIPTION analogue output 1 analogue output 2 analogue output 3 serial data line; I2C-bus serial clock line; I2C-bus Port 2 npn collector output with internal pull-up resistor not connected supply return (ground) positive supply voltage not connected Port 1 open npn emitter output inverted P2 output not connected not connected not connected analogue output 0 Fig.2 Pinning diagram
TDA8442
7 8 9 10 11 12 13 14 15 16
n.c. GND VP n.c. P1 P2N n.c. n.c. n.c. DAC0
FUNCTIONAL DESCRIPTION Control Analogue control is facilitated by four 6-bit digital-to-analogue converters (DAC0 to DAC3). The values of the output voltages from the DACs are set via the I2C-bus. The high-current output port (P1) is suitable for switching between internal and external RGB signals. It is an open npn emitter output capable of sourcing 14 mA (min.). The two output ports (P2 and P2N) can be used for NTSC/PAL switching. These are npn collector outputs with internal pull-up resistors of 10 k (typ.). Both outputs are capable of sinking up to 2 mA with a voltage drop of less than 400 mV. If one output is switched on (LOW), the other output is switched off, and vice versa. Reset The power-down-reset mode occurs whenever the positive supply voltage falls below 8.5 V (typ.) and resets all registers to a defined state.
March 1991
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Philips Semiconductors
Product specification
I2C-bus interface for colour decoders
OPERATION Write The TDA8442 is controlled via the I2C-bus (specifications for the I2C-bus will be supplied on request). Programming of the TDA8442 is performed using the format shown in Fig.3.
TDA8442
Fig.3 TDA8442 programming format.
Acknowledge (A) is generated by the TDA8442 only when a valid address is received and the device is not in the power-down-reset mode (VP > 8.5 V (typ.)). Control Control is implemented by the instruction bytes POD (port output data) and DACX (digital-to-analogue converter control) together with the corresponding data/control bytes (see Fig.4).
Fig.4 Control porgramming.
POD bit P1 If a logic 1 is programmed, the P1 output is switched on. If a logic 0 is programmed or after a power-down-reset, the P1 output is switched off (high-impedance state). POD bit P2/P2N If a logic 1 is programmed, the P2 output is switched off and the P2N output is switched on (LOW). If a logic 0 is programmed or after a power-down-reset, the P2 output is switched on (LOW) and the P2N output is switched off. DAX bits AX5 to AX0 The digital-to-analogue converter selected corresponds to the decimal equivalent of the two bits X1 and X0. The output voltage of the selected DAC is programmed using bits AX5 to AX0, the lowest value being with all data AX5 to AX0 at logic 0 or when power-down-reset has been activated.
March 1991
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Philips Semiconductors
Product specification
I2C-bus interface for colour decoders
RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) PARAMETER Supply voltage range (pin 9) Input/output voltage ranges pin 4 pin 5 pin 6 pin 11 pin 12 pin 1 to 3 and pin 16 Total power dissipation Operating ambient temperature range Storage temperature range Note 1. Pin voltage may exceed VP if the current in that pin is limited to 10 mA. CHARACTERISTICS VP = 12 V; Tamb = +25 C; unless otherwise specified PARAMETER Supplies Supply voltage (pin 9) Supply current (pin 9) I2C-bus inputs SDA (pin 4); SCL (pin 5) Input voltage HIGH Input voltage LOW Input current HIGH Input current LOW I2C-bus output SDA (pin 4) Output voltage LOW Maximum output sink current open collector IOL = 3.0 mA VOL IOL - 3 - 5 0.4 - note 1 note 1 note 1 VIH VIL IIH IIL 3.0 -0.3 - - - - - - no outputs loaded VP IP 10.8 8 12.0 13 13.2 18 CONDITIONS SYMBOL MIN. TYP. VSDA VSCL VP2 VP1 VP2N VDAX Ptot Tamb Tstg -0.3 -0.3 -0.3 -0.3 -0.3 -0.3 - -20 -55 +13.2 +13.2 VP; note 1 VP; note 1 VP; note 1 VP; note 1 1 +70 +150 VP SYMBOL MIN. -0.3 MAX. +13.2
TDA8442
UNIT V V V V V V V W C C
MAX.
UNIT
V mA
VP - 1 1.5 10 10
V V A A
V mA
March 1991
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Philips Semiconductors
Product specification
I2C-bus interface for colour decoders
PARAMETER Ports P2 and P2N (pins 6 and 12) Internal pull-up resistor to VP Output voltage switched on (LOW) Maximum output sink current Leakage current output switched off Port P1 (pin 11) Output current switched on Digital-to-analogue outputs DAC0 (pin 16) Maximum output voltage Minimum output voltage Positive value of smalles step Deviation from linearity Output impedance Maximum output source current Maximum output sink current DAC1 (pin 1) Maximum output voltage Minimum output voltage Positive value of smallest step Deviation from linearity Output impedance Maximum output source current Maximum output sink current unloaded; note 3 unloaded; note 3 IO = 2 mA (1 lsb); note 3 IO = 2 mA IO = -2 to +2 mA VO max VO min VO lsb V ZO -IOH IOL 4.0 1.0 18 - - 2 2 - - - - - - 8 5.0 1.7 86 50 30 6 - unloaded; note 3 unloaded; note 3 IO = 2 mA (1 lsb); note 3 IO = 2 mA IO = -2 to +2 mA VO max VO min VO lsb V ZO -IOH IOL 3.0 0.15 16 - - 2 2 - - - - - - 8 4.25 1.0 72 45 30 6 - open npn emitter output VO = 0 to 5 V note 2 IO Ileak 14 - - - - 100 IOL = 2 mA npn collector output with pull-up resistor to VP RO VOL IOL - Ileak 5 - 2 - 10 - 5 - 15 0.4 - 25 CONDITIONS SYMBOL MIN. TYP.
TDA8442
MAX.
UNIT
k V mA A
mA A
Leakage current switched off VO = 0 to VP
V V mV mV mA mA V V mV mV mA mA
March 1991
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Philips Semiconductors
Product specification
I2C-bus interface for colour decoders
PARAMETER DAC2 (pin 2) Maximum output voltage Minimum output voltage Positive value of smallest step Deviation from linearity Output impedance Maximum output source current Maximum output sink current DAC3 (pin 3) Maximum output voltage Minimum output voltage Positive value of smallest step Deviation from linearity Output impedance Maximum output source current Maximum output sink current Power-down reset Maximum value of VP at which power-down reset is active Rise time of VP during power-on Notes to the Characteristics 1. If VP < 1 V, the input current is limited to 10 A at input voltages up to 13.2 V. 2. Pure capacitive load should be avoided because of possible oscillations. 3. Values are proportional to VP. VPD 6 - 10 unloaded; note 3 unloaded; note 3 IO = 2 mA (1 lsb); note 3 IO = 2 mA IO = -2 to +2 mA VO max VO min VO lsb V ZO -IOH IOL 10.0 0.1 70 - - 2 2 - - - - - - 8 11.2 1.0 250 150 30 6 - unloaded; note 3 unloaded; note 3 IO = 2 mA (1 lsb); note 3 IO = 2 mA IO = -2 to +2 mA VO max VO min VO lsb V ZO -IOH IOL 4.0 1.0 18 - - 2 2 - - - - - - 8 5.0 1.7 86 50 30 6 - CONDITIONS SYMBOL MIN. TYP.
TDA8442
MAX. V V
UNIT
mV mV mA mA V V mV mV mA mA
V
VP rising from 0 V to VPD tr
5
-
-
s
March 1991
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Philips Semiconductors
Product specification
I2C-bus interface for colour decoders
I2C-BUS TIMING Bus loading conditions: 4k pull-up resistor to +5 V; 200 pF capacitor to GND. All values are referred to VIH = 3 V and VIL = 1.5 V. PARAMETER Bus free before start Start condition set-up time Start condition hold time LOW period SCL, SDA HIGH period SCL Rise time SCL, SDA Fall time SCL, SDA Data set-up time (write) Data hold time (write) Acknowledge (from TDA8442) hold time Stop condition set-up time tBUF tSU; STA tHD; STA tLOW tHIGH tr tf tSU; DAT tHD; DAT tHD; ACK tSU; STO SYMBOL MIN. 4.0 4.0 4.0 4.0 4.0 - - 1 1 - 0 4.0 - - - - - - - - - - - - TYP. - - - - - 1.0 0.30 - - 3.5 - -
TDA8442
MAX. s s s s s s s s s s s s
UNIT
Acknowledge (from TDA8442) set-up time tSU; ACK
Reference levels are 10 and 90%.
Fig.5 I2C-bus timing; TDA8442.
March 1991
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Philips Semiconductors
Product specification
I2C-bus interface for colour decoders
PACKAGE OUTLINE DIP16: plastic dual in-line package; 16 leads (300 mil); long body
TDA8442
SOT38-1
D seating plane
ME
A2
A
L
A1
c Z e b1 b 16 9 MH wM (e 1)
pin 1 index E
1
8
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT38-1 REFERENCES IEC 050G09 JEDEC MO-001AE EIAJ EUROPEAN PROJECTION A max. 4.7 0.19 A1 min. 0.51 0.020 A2 max. 3.7 0.15 b 1.40 1.14 0.055 0.045 b1 0.53 0.38 0.021 0.015 c 0.32 0.23 0.013 0.009 D (1) 21.8 21.4 0.86 0.84 E (1) 6.48 6.20 0.26 0.24 e 2.54 0.10 e1 7.62 0.30 L 3.9 3.4 0.15 0.13 ME 8.25 7.80 0.32 0.31 MH 9.5 8.3 0.37 0.33 w 0.254 0.01 Z (1) max. 2.2 0.087
ISSUE DATE 92-10-02 95-01-19
March 1991
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Philips Semiconductors
Product specification
I2C-bus interface for colour decoders
SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used. This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our "IC Package Databook" (order code 9398 652 90011). Soldering by dipping or by wave The maximum permissible temperature of the solder is 260 C; solder at this temperature must not be in contact DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
TDA8442
with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg max). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. Repairing soldered joints Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 C, contact may be up to 5 seconds.
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. PURCHASE OF PHILIPS I2C COMPONENTS
Purchase of Philips I2C components conveys a license under the Philips' I2C patent to use the components in the I2C system provided the system conforms to the I2C specification defined by Philips. This specification can be ordered using the code 9398 393 40011.
March 1991
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