NJM2707

NJM2707 Sound Enhancement Audio Processor for Compression Audio ■ GENERAL DESCRIPTION The NJM2707 is a sound enhancement audio processor designed for compression audio. It includes mode control switch (Sound enhancement mode / Bypass mode). The NJM2707 performs low noise and low distortion characteristics, and is suitable for car audio & home audio applications. ■ PACKAGE OUTLINE NJM2707RB2 ■ FEATURES +1.8 to +13 V ! Operating Voltage ! Low Operating Circuit 0.75 mA typ.( at Sound enhancement mode VR: Max.) ! Low output noise -100dBV typ.( at Sound enhancement mode VR: Max.) ! Low THD 0.01% typ. ! Variable Surround Effect by external resistor ! Internal Mode Control Switch ! Bipolar Technology ! Package Outline TVSP10 ■ PIN CONFIGURATION 1 2 3 4 5 10 9 8 7 6 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. LIN RIN SW VREF GND V+ NFR NFL ROUT LOUT ■ BLOCK DIAGRAM (TVSP10) BYPASS LIN 1 REBIRTH FILTER BYPASS 10 LOUT RIN 2 REBIRTH FILTER 9 ROUT SW 3 8 NFL VREF 4 V + 7 NFR GND 5 6 V+ Ver.0.1E –1– NJM2707 ■ ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER SYMBOL Power Supply Voltage Power Dissipation O perating Temperature Range Storage Temperature Range V+ PD Topr Tstg RATING 14 410 NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting UNIT V mW °C °C -40 ~ +85 -40 ~ +125 ■ OPERATING VOLTAGE PARAMETER Operating Voltage SYMBOL V+ TEST CONDITION MIN. 1.8 TYP. 9.0 MAX. 13 UNIT V ■ ELECTRICAL CHARACTERISTICS(Ta=25°C, V+=9V, unless otherwise specified) TEST CONDITION PARAMETER SYMBOL INPUT L 0 R 0 0 0 Bypass eala Rebirth MAX 3.65 0.75 0.75 4.15 1.3 mA 1.3 4.65 V MIN OUTPUT Mode VR TYP MAX UNIT Supply Current Reference Voltage ICC VREF No Signal 0 No Signal 0 ■ AC CHARACTERISTICS(Ta=25°C, V+=9V, Vin= 1.5Vrms,f=1kHz,RL=10kΩ,unless otherwise specified) TEST CONDITION PARAMETER SYMBOL INPUT L f=1kHz THD=1% f=1kHz THD=1% VIN VIN VIN VIN 0 R VIN VIN VIN VIN 0 L R L R L R L R L R L R L R L R L R eala Rebirth Bypass eala Rebirth Bypass eala Rebirth Bypass eala Rebirth Bypass MAX 1.5 2.7 Vrms 2.2 3.0 Bypass 2.2 3.0 - MIN OUTPUT Mode VR TYP MAX UNIT Maximum Input Voltage VIM f=10kHz THD=1% f=10kHz THD=1% Rg=0Ω A-Weighted MAX 1.0 1.6 -112 (2.5) -100 (10) 0.002 -106 (5.0) -94 (20) 0.01 % - - Output Noise VNO Rg=0Ω A-Weighted VIN=1.5Vrms f=1kHz 0 VIN VIN VIN 0 VIN VIN VIN dBV (µVrms) MAX - Total Harmonic Distortion Bypass Gain - - THD+N VIN=0.75Vrms f=10kHz MAX - 0.1 - GVBYP VIN=1.5Vrms f=1kHz - -1.0 0.0 1.0 dB –2– NJM2707 TEST CONDITION PARAMETER SYMBOL INPUT L R VIN L R eala Rebirth MAX 3.0 5.0 7.0 dB MIN OUTPUT Mode VR TYP MAX UNIT eala Rebirth Gain Geala VIN=0.75Vrms f=10kHz VIN - ■ CONTROL CHARACTERISTICS(Ta=25°C, V+=9V, unless otherwise specified) PARAMETER Mode Select Control Voltage SYMBOL VMODE TEST CONDITION VIN=High Level VIN=Low Level MIN. 1.2 0.0 TYP. - MAX. V + UNIT V V 0.3 ■ SWITCH FUNCTION MODE SW Bypass L,Open eala Rebirth H NOTES Input Through eala Rebirth(Stereo Input) –3– NJM2707 ■ APPLICATION CIRCUIT 10uF+ Lch Input 10uF+ Rch Input SW 100kΩ 2 3 4 5 RIN SW VREF GND ROUT NFL NFR V+ 9 1 LIN LOUT 10 + 10uF Lch Output + 10uF Rch Output 2.2nF 8 7 6 + 100uF +9V 22kΩ MIN MAX VR:10kΩ 1uF 1uF + + –4– NJM2707 ■ TERMINAL DESCRIPTION (Ta=25°C, V =9V) + PIN No. SYMBOL FUNCTION EQUIVALENT CIRCUIT V+ V+ V+ Voltage 1 2 LIN RIN Lch Input Rch Input 4.15V 700 100k VREF V+ V+ V+ 3 MODE SW Mode Control Switch 700 300k 0V V+ V+ V+ 4 VREF Reference Voltage 300k 300k 4.15V –5– NJM2707 ■ TERMINAL DESCRIPTION (Ta=25°C, V =9V) + PIN No. SYMBOL FUNCTION EQUIVALENT CIRCUIT Voltage 6 V+ Power Supply V+ V+ V+ 7 8 NFR NFL Rch Filter Terminal Lch Filter Terminal 20k 4.15V 400 V+ V+ V+ V+ 20k 9 10 ROUT LOUT Rch Output Lch Output 12k 4.15V [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. –6–