UNISONIC TECHNOLOGIES CO., LTD USA575 Preliminary LINEAR INTEGRATED CIRCUIT LOW VOLTAGE COMPANDOR DESCRIPTION The UTC USA575 is a precision dual gain control circuit designed for low voltage applications. The UTC USA575’s channel 1 is an expandor, while channel 2 can be configured either for expandor, compressor, or automatic level controller (ALC) application. FEATURES * Operating voltage range from 3V to 7V * Reference voltage of 100mVRMS=0dB * 600Ω drive capability * One dedicated summing op amp per channel and two extra uncommitted op amps * Single or split supply operation * Wide input/output swing capability ORDERING INFORMATION Ordering Number USA575G-R20-R Package SSOP-20 Packing Tape Reel MARKING www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 7 QW-R106-008.a USA575 Preliminary PIN CONFIGURATION +VIN1 1 20 VCC -VIN1 2 19 +VIN2 VOUT 3 18 -VIN2 RECT. IN1 4 17 VOUT2 CRECT1 5 16 RECT.IN2 SUM OUT 1 6 COMP. IN1 7 VREF 8 GAIN CELL IN1 9 GND 10 LINEAR INTEGRATED CIRCUIT 15 CRECT2 14 SUM OUT2 13 COMP.IN2 12 SUM NODE 2 11 GAIN CELL IN2 PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 PIN NAME +VIN1 -VIN1 VOUT RECT. IN1 CRECT1 SUM OUT1 COMP. IN1 VREF GAIN CELL IN1 GND GAIN CELL IN2 SUM NODE 2 COMP. IN2 SUM OUT2 CRECT2 RECT. IN2 VOUT2 -VIN2 +VIN2 VCC DESCRIPTION Non-Inverted Input 1 Inverted Input 1 Output Rectifier 1 Input External Capacitor Pinout for Rectifier 1 Summation Output 1 Compensator Pin Voltage Reference Variable Gain Cell Input 1 Ground Variable Gain Cell Input 2 Summation Node 2 Compensator Pin Summation Output 2 External Capacitor Pinout for Rectifier 2 Rectifier 2 Input Output 2 Inverted Input 2 Non-Inverted Input 2 Positive Power Supply UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R106-008.a USA575 Preliminary LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW-R106-008.a USA575 Preliminary LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Single Supply Voltage VCC -0.3 ~ 8 V Voltage Applied to Any Other Pin VIN -0.3 ~ (VCC+0.3) V Operating Ambient Temperature Range TA -40 ~ +85 °C Storage Temperature Range TSTG -65 ~ +150 °C Note: 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. THERMAL DATA PARAMETER Junction to Ambient SYMBOL θJA RATINGS 117 UNIT °C/W ELECTRICAL CHARACTERISTICS (Typical values are at TA=25°C. Minimum and Maximum values are for the full operating temperature range: -40~+85°C, except SSOP package is tested at +25°C only. VCC=5V, unless otherwise stated. Both channels are tested in the expandor mode) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT FOR COMPANDOR, INCLUDING SUMMING AMPLIFIER Supply Voltage (Note 1) VCC 3 5 7 V Supply Current ICC No Signal 3 4.2 5.5 mA Reference Voltage (Note 2) VREF VCC=5V 2.4 2.5 2.6 V Summing Amp Output Load RL 10 kΩ Total Harmonic Distortion THD 1kHz,0dB BW=3.5kHz 0.12 1.5 % Output Voltage Noise ENO BW=20kHz,RS=0Ω 6 30 µV Unity Gain Level 0dB 1kHz -1.5 1.5 dB Output Voltage Offset VOS No Signal -150 150 mV Output DC Shift No Signal to 0dB -100 100 mV Gain Cell Input=0dB, 1kHz -1.0 1.0 dB Rectifier Input=6dB, 1kHz Tracking Error Relative to 0dB Gain Cell Input=0dB, 1kHz -1.0 1.0 dB Rectifier Input=-30dB, 1kHz Crosstalk 1kHz, 0dB, CREF=220µF -80 -65 dB FOR OPERATIONAL AMPLIFIER Output Swing VO RL=10kΩ VCC-0.4 VCC V Output Load RL 1kHz 600 Ω Input Common-Mode Range CMR 0 VCC V Common-Mode Rejection Ratio CMRR 60 80 dB Input Bias Current IB VIN=0.5V~4.5V -1 1 µA Input Offset Voltage VOS 3 mV Open-Loop Gain AVOL RL=10kΩ 80 dB Slew Rate SR Unity Gain 1 V/µs Bandwidth GBW Unity Gain 3 MHz Input Voltage Noise ENI BW=20kHz 2.5 µV Power Supply Rejection Ratio PSRR 1kHz, 250mV 60 dB Notes: 1. Operation down to VCC=2V is possible, but performance is reduced. 2. Reference voltage, VREF, is typically at 1/2VCC. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 7 QW-R106-008.a USA575 Preliminary LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT 30k 30k 1µF VREF 8 12 ∑ COMP IN 14 COMP OUT 13 10µF 10µF 10k 11 ∆G 10k 16 3.8k 4.7µF 15 2.2µF Figure 2. Typical Compressor Configuration UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 7 QW-R106-008.a USA575 Preliminary LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT VCC-5V C15 VREF 0.1µF C14 1 R1 2 C1 C2 + - UTC USA575 C3 J1 10µF 4 OP AMP EXP IN C5 7 10µF 8 VREF C6 10µF 9 - 18 C11 J2 C13 ∑ ALC S1 4.7µF C9 2.2µF 14 10k VREF 10k △G C8 13 12 R6 30k △G GND UNISONIC TECHNOLOGIES CO., LTD COMP 15 ∑ 10k C10 R11 16 COMP/ ALC IN C12 10µF R10 17 10 www.unisonic.com.tw 19 3.8k 6 R12 10k 47µF + 3.8k 5 C4 2.2µF 20 OP AMP R2 3 EXP OUT VCC 10k 10µF R7 30k COMP/ ALC OUT C7 1µF 11 6 of 7 QW-R106-008.a USA575 Preliminary LINEAR INTEGRATED CIRCUIT 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 7 of 7 QW-R106-008.a