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| NJM2174 AUDIO LINE AMPLIFIER with MUTE FUNCTION s GENERAL DESCRIPTION The NJM2174 is a low voltage audio line amplifier designed for audio items. Internal closed loop voltage gain is suitable for amplifier of small line signal in digital audio items. It includes mute circuit which realizes very low turn-noise at power on/off. It is suitable for digital audio items with line out. NJM2174V s FEARTURES q Operating Voltage q Operating Current q Maximum Output Voltage q Closed Loop Voltage Gain 4.5 to 5.5V + 2.5mA typ. at V =5V 4dBV typ. at THD=0.1% 3.5dB typ. at f=1kHz 2.5dB typ. at f=100kHz q Mute Function -85dB typ. q Supply Voltage Rejection Ratio 60dB typ.) q Bipolar Technology q Package Outline SSOP14 s PACKAGE OUTLINE s PIN CONFIGURATION 1 2 3 4 5 6 7 14 13 12 11 10 9 8 PIN FUNCTION 8. BIAS 1. GND 9. NC 2. NC 10. NC 3. OUT-R 11. IN-L 4. MUTE 1 12. OUT-L 5. MUTE 2 13. NC 6. MUTE C + 14. V 7. IN-R NJM2174V s BLOCK DIAGRAM GND 1 2 3 4 5 6 7 BIAS MUTE 14 V+ 13 NC 12 OUT-L 11 IN-L 10 NC 9 NC 8 BIAS NC OUT-R MUTE1 MUTE2 MUTEC IN-R NJM2174 s ABSOLUTE MAXIMUM RATINGS RARAMETER SYMBOL + Supply Voltage V Power Dissipaation PD Operating Temperature Range Topr Storage Temperature Range Tstg RATINGS 7 300 -20 to +75 -40 to +125 (Ta=25C) UNIT V mW C C + s ELECTRICAL CHARACTERISTICS PARAMETER Operating Voltage Range Operating Current Reference Voltage Closed Loop Voltage Gain1 Closed Loop Voltage Gain2 Channel Gain Balance Maximum Output Voltage Total Harmonic Distortion Output Noise Voltage Mute Level SYMBOL V + (V =5V, VIN=-3dBV, RL=47k, f=1kHz, Ta=25C) TEST CONDITION No signal No signal f=100kHz THD=0.1% Rg=0, A-Weighted VO/VIN MIN. 4.5 2.0 2.5 -7.0 -0.5 3 70 VRP=-20dBV, Rg=0 45 2.0 0 TYP. 5.0 2.5 2.3 3.5 -2.5 0 4 0.005 -95 -85 90 60 MAX. 5.5 4.5 2.6 4.5 -2.0 0.5 0.01 -88 -70 V + UNIT V mA V dB dB dB dBV % dBV dB dB dB V V ICC VREF GV1 GV2 GV VOM THD VNO MUTE Channel Separation CS Supply Voltage Rejection SVR Ratio High Level Input Voltage VIH Low Level Input Voltage VIL 0.3 s CONTROL TERMNAL MUTE1(4pin) L L H H MUTE2(5pin) L H L H IC doesn't output the signal. IC doesn't output the signal. IC set up 3.5dB typ. voltage gain. IC doesn't output the signal. STATUS NJM2174 MEMO [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. |
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