NJU72342 4 Channels Electronic Volume GENERAL DESCRIPTION PACKAGE OUTLINE 2 The NJU72342 is a 4 channels I C electronic volume IC with external mute controls. The NJU72342 has many characteristics that are useful in audio application, such as low noise, low distortion, and wide operating voltage range. 2 All functions are controlled by I C BUS interface. SSOP14 FEATURES Operating Voltage V =4.5V 14.5V + Input Gain 0dB/+3dB/+6dB/+9dB Volume 0 ~-95dB/Mute ,1dBstep Low Distortion 0.002% typ. Low Noise 2.0Vrms typ. External Mute Zero Cross Detection 2 I C BUS Control CMOS Technology Small Package SSOP14 BLOCK DIAGRAM PIN CONFIGURATION No. Symbol Function IN1 OUT1 1 IN1 Input Terminal 1 2 IN2 Input Terminal 2 IN2 3 IN3 Input Terminal 3 OUT2 4 IN4 Input Terminal 4 5 MUTE Mute Terminal IN3 2 OUT3 I C Data Input Terminal 6 SDA /Acknowledge Output 2 IN4 7 SCL I C Clock Terminal OUT4 8 V+ Power Supply Terminal Reference Voltage 9 VREF Vref MUTE Terminal SDA 2 I C 10 GND Ground Terminal SCL Zero Cross Detection 11 OUT4 Output Terminal 4 12 OUT3 Output Terminal 3 13 OUT2 Output Terminal 2 14 OUT1 Output Terminal 1 Ver.0.8E 1 NJU72342 ABSOLUTE MAXIMUM RATING (Ta=25 C) PARAMETER SYMBOL RATING UNIT Supply Voltage V +15 V + Power Dissipation PD 560 (Note1) mW Maximum Input Voltage V 0 ~ V (Note2) V IMAX + Operating Temperature Range Topr -40 ~ +85 C Storage Temperature Range Tstg -40 ~ +150 C (Note1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting (Note2) Don t put Input Voltage more than Power Supply Voltage. ELECTRICAL CHARACTERISTICS + (Ta=25 C, V =9V, R =47k, V =1.5Vrms, f=1kHz, all controls flat unless otherwise specified) L IN PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Operating Voltage V 4.5 9 14.5 V + Supply Current I No signal - 10 16 mA DD Reference Voltage V No signal 4.0 4.5 5.0 V REF Maximum Input Voltage V Main Volume=-6dB,THD=1% - 3.6 - Vrms INS Maximum Output Voltage V THD=1% 2.2 2.6 - Vrms OM Voltage Gain 1 G Input Gain=+6dB, V =100mVrms 4 6 8 dB V1 IN Voltage Gain 2 G -1.5 0 1.5 dB V2 Main Volume=Mute, Voltage Gain 3 G - -100 -95 dB V3 BW=400Hz-30kHz Channel Balance G Main Volume=0dB -1 0 1 dB CB Total Harmonic Distortion THD Vo=1.5Vrms,BW=400Hz~30kHz - 0.002 0.01 % Output Noise Voltage V Main Volume=0dB - 2.0 7.0 Vrms NO Channel Separation CS R =0 - -110 -90 dB g MUTE TERMINAL CONTROL CHARACTERISTICS(Ta=25 C, all controls flat unless otherwise specified) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Low Level Input Voltage V 0 - 0.6 V IL + High Level Input Voltage V 2.0 - V V IH CONTROL TERMINAL EXPLANATION Mute Terminal- + (Ta=25 C, V =9V, R =47k, V =1.5Vrms, f=1kHz, all controls flat unless otherwise specified) L IN MODE STATUS TEST CONDITION Mute ON H Mute is Active Mute OFF L Mute is NOT Active 2