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SA577N Datasheet(PDF) 2 Page - NXP Semiconductors |
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SA577N Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 4 page Philips Semiconductors RF Communications Products Product specification NE/SA577 Unity gain level programmable low power compandor December 15, 1993 3 ELECTRICAL CHARACTERISTICS TA = 25°C, VCC = 3.6VDC, compandor 0dB level = –20dBV = 100mVRMS, output load RL = 10kΩ, Freq = 1kHz, unless otherwise specified. R1, R2 and R3 are 1% resistors. LIMITS SYMBOL PARAMETER TEST CONDITIONS NE/SA577 UNITS MIN TYP MAX VCC Supply voltage1 2 3.6 7 V ICC Supply current No signal R2 = 100kΩ 1.4 2 mA VREF Reference voltage2 VCC = 3.6V 1.7 1.8 1.9 V RL Summing amp output load 10 k Ω THD Total harmonic distortion 1kHz, 0dB, BW = 3.5kHz 0.25 1.5 % ENO Expandor output noise voltage BW = 20kHz, RS = 0Ω 10 25 µV 0dB Unity gain level 0dB at 1kHz –1.5 0.18 1.5 dB Programmable range3 R1 = R3 = 18.7k Ω, R2 = 24.3kΩ 0 dBV R1 = R3 = 22.6k Ω, R2 = 100kΩ –10 dBV R1 = R3 = 7.15k Ω, R2 = 100kΩ –20 dBV R1 = R3 = 1.33k Ω, R2 = 200kΩ –40 dBV VOS Output voltage offset No signal –150 1 150 mV Expandor output DC shift No signal to 0dB –100 7 100 mV Tracking error relative to 0dB output -20dB expandor –1.0 0.3 1.0 dB Crosstalk, COMP to EXP 1kHz, 0dB, CREF = 10µF –80 –65 dB VO Output swing low 0.2 V Output swing high VCC – 0.2 V NOTE: 1. Operation down to VCC = 1.8V is possible, see application note AN1762. 2. Reference voltage, VREF, is typically at 1/2 VCC. 3. Unity gain level can be adjusted CONTINUOUSLY between –40dBV = 10mVRMS and 0dBV = 1.0VRMS. For details see application note AN1762. |
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