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UNISONIC TECHNOLOGIES CO., LTD A4533
LOW POWER AMPLIFIER FOR HEADPHONE STEREOS
FEATURES
* Low current consumption. * 16 load drive capability. * Excellent reduced voltage characteristics. * High power supply ripple rejection. * Fewer external components required. * High voltage gain. * Less harmonic interference in radio band. * Built in power switch and muting function.
LINEAR INTEGRATED CIRCUIT
MSOP-10
SSOP-10
*Pb-free plating product number: A4533L
ORDERING INFORMATION
Order Number Normal Lead Free Plating A4533-SM2-R A4533L-SM2-R A4533-SM2-T A4533L-SM2-T A4533-R10-R A4533L-R10-R A4533-R10-T A4533L-R10-T Package MSOP-10 MSOP-10 SSOP-10 SSOP-10 Packing Tape & Reel Tube Tape & Reel Tube
www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., LTD
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A4533
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
POWER SWITCH 1
POWER SWITCH Amp1
MUTE CIRCUIT
10 MUTE SWITCH
IN 1 2
9 OUT 1
PRE GND 3
8 POWER GND
IN 2 4
Amp2
7 OUT 2
REF 5
BIAS
6 VCC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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ABSOLUTE MAXIMUM RATINGS (TA = 25C)
LINEAR INTEGRATED CIRCUIT
PARAMETER SYMBOL RATINGS UNIT VCC 4.5 V Power Supply Voltage Power Dissipation PD 300 mW Junction Temperature TJ 125 Operating Temperature TOPR 0 ~ +70 Storage Temperature TSTG -40 ~ +150 Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. The device is guaranteed to meet performance specification within 0 ~ 70 operating temperature range and assured by design from -20 ~ 85 .
RECOMMENDED OPERATING CONDITIONS
PARAMETER Supply Voltage Operating Voltage Range Load Resistance SYMBOL VCC VOPR RL RATINGS 3 1.6 ~ 4 16 ~ 32 UNIT V V
ELECTRICAL CHARACTERIS (Ta = 25C, RL=16, Rg=600, Unless Otherwise specified)
PARAMETER Quiescent Current VCC=2.4V VCC=4.5V, Mute =GND VCC=4.5V, PS = GND VCC=2.4V, f=1kHz, VOUT=-10dBm 30 32 Voltage Gain VCC=1.6V, f=1kHz, VOUT=-20dBm 29 32 VCC=2.4V, f=1kHz, VOUT=-10dBm Voltage Gain Difference VCC=1.6V, f=1kHz, VOUT=-20dBm Total Harmonic Distortion VCC=2.0V, f=1kHz, POUT=1mW 0.5 Output Power VCC=3.0V, f=1kHz, THD=10% 20 40 VCC=2.4V, f=100Hz, Rg=1kW, 40 50 dB Cross Talk CT VOUT=-10dB VCC=1.6V, f=100Hz, Rg=1k, 45 60 dB Ripple Rejection RR VR=-20dBm, BPF=100Hz Output Noise Voltage eN VCC=4.5V, Rg=1k,BPF=20Hz ~ 20kHz 62 100 V VCC=1.6V, f=100Hz, PS = GND, -80 dB Power Off Effect VO(OFF) VIN=-10dB VCC=1.6V, f=100Hz, Mute = GND, -80 dB Muting Effect VO(MT) VIN=-10dB Power On Current Sensitivity IPS(ON) VCC=1.5V, VREF0.85V 0.05 1.0 A Power Off Voltage Sensitivity VPS(OFF) VCC=1.5V, VREF 0.1V 0.5 0.6 V Muting Off Current Sensitivity IMUTE(OFF) VCC=1.5V, VREF 0.85V 0.2 1.0 A Muting On Voltage Sensitivity VMUTE(ON) VCC=1.5V, VREF 0.1V 0.5 0.65 V Note: The quiescent current is represented by the current flowing into pin 6. The respective maximum currents flowing into pin 1 and pin 10 are calculated by (pin voltage -0.5) / 16 [V/k] and the total current increases by these current values. SYMBOL IQ1 IQ2 IQ3 GV1 GV2 GV1 GV2 THD POUT CONDITIONS MIN TYP 5.4 1.1 MAX UNIT 10 mA 2.0 mA 1.0 A 34 dB 34 dB 1.0 dB 1.0 dB 1.5 % mW
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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A4533
TEST CIRCUIT
LINEAR INTEGRATED CIRCUIT
I1 2 3 1 2 Rg 1k 1 2 Rg 1k 22
+
1 P/SW 4 2 IN 1 1 P/SW
UTC A4533 MT/SW 10 OUT 1 9 POWER GND 8 OUT 2 7 VCC 6 MT/SW
I10 1 2 3 V10 220
+
V1
4 0.1 4.7 4.7
RL 16 VR RL 16 DC VCC RIPPLE
3 PRE GND 4 IN 2 5 REF
220 A 4.7 ICC , capacitance: F)
+
SG
Unit (resistance:
TYPICAL APPLICATON CIRCUIT
1 ON OFF VR 2 IN 1 P/SW 1 P/SW
UTC A4533 MT/SW 10 OUT 1 9 POWER GND 8 OUT 2 7 VCC 6 4.7
+
MT/SW
OFF ON
0.1 4.7 4.7
3 PRE GND VR SG 1 SG 2 22 4 IN 2 5 REF
+
220
Unit (resistance:
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
+
0.1
+
+
0.1
220 RL 16 RL 16
+
VCC
, capacitance: F)
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