in-out Audio Selector with Isolation amplifier! GENERAL DESCRIPTION! PACKAGE OUTLINE The NJM75 is In-out stereo audio Selector with ground noise isolation amplifiers. It contains dual channel differential amplifier. It is developed for those car audio applications where long connections between head unit and other components are necessary and ground noise has to be eliminated. NJM75V! FEATURES in-out Stereo Audio Selector Operating Voltage Operating Current Common mode rejection ratio Maximum Output Voltage Supply Voltage Rejection Ratio Total Harmonic Distortion Noise Output Voltage Bipolar Technology Package Outline.3 to V ma(typ.) CMRR=dB typ. Vrms min., @ THD=.% db typ..3% typ..7µvrms typ. SSOP! BLOCK DIAGRAM INA+ INA- INB+ INB- LOGIC CNT CNT INA+ IN- OUTA INB+ IN3A+ IN3- OUTB IN3B+ INA+ IN- INB+ Ach Bch Vref V+ Vref GND Ver.--3
!PIN CONFIGURATION OUTA V+ OUTB Vref 9 3 5 7 GND INA+ IN- INB+ CNT IN3A+ INA+ INA- INB- INB+ CNT INA+ NJM75 7 5 3 9 IN- IN3- INB+ IN3B+ No. SYMBOL FUNCTION OUTA Ach Output OUTB Bch Output 3 INA+ Ach +Input INA- Ach -Input 5 INB- Bch -Input INB+ Bch +Input 7 CNT CONTROL INA+ Ach +Input 9 IN- -Input INB+ Bch +Input IN3B+ Bch +Input 3 IN3- -Input3 3 IN3A+ Ach +Input 3 CNT CONTROL 5 INB+ Bch +Input IN- -Input 7 INA+ Ach +Input GND Ground 9 Vref Reference Voltage V+ Power Supply
!ABSOLUTE MAXIMUM RANGES (Ta=5 C) PARAMETER SYMBOL RANGE UNIT Supply Voltage V + +5 V Maximum Input Voltage V IM to V +( ) V Power Dissipation P D SSOP : 7 () 95 () ()EIA/JEDEC STANDARD Test board (7.x.3x.mm, layer, FR-) mounting () EIA/JEDEC STANDARD Test board (7.x.3x.mm, layer, FR-) mounting Operating Temperature Topr - to +5 C Storage Temperature Tstg - to +5 C!ELECTRICAL CHARACTERRISTIC (V + =9V,Ta=5 C) mw PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT DCCHARACTERRISTIC Operating Voltage V +.3 9 V Operating Current I CC No Signal - ma Reference Voltage V REF 3..3. V AC CHARACTERRISTIC (Non-inverting circuit, f=khz, Vin=Vrms, R g=ω, R L=kΩ unless otherwise specified Voltage Gain Gv -.. +. db Cross Talk CT f=khz,a-weighted - db Channel Separation CS f=khz,a-weighted 9 - db Channel Balance BAL - -.5 db Roll-off High Frequency f RH -db - - khz Input Resistance R IN 5 5 5 kω Output Resistance R OUT - 9 - Ω Maximum Output Voltage V OM THD=.%, f = khz.5 - Vrms Noise Output Voltage V NO Rg=Ω, A-weighted -.7.5 µvrms Total Harmonic Distortion THD f=khz, V IN =Vrms, BW=Hz to 3kHz -.3. % Common Mode Rejection Ratio CMRR 5 - db Common Mode Input Voltage Vicm CMRR=5dB - - Vrms Supply Voltage Rejection Ratio SVR f=hz, V ripple =mvrms 55 5 - db Switch-ON Voltage Level V CH V CNT =High Level.3 - V + V Switch-OFF Voltage Level V CL V CNT =Low Level - -. V 3
!SWITCH CONTROL LOGIC CNT CNT Input Ach / Bch L L L H H L 3 H H
5!APPLICATION CIRCUIT 5 9 7 3 3 5 7 9 5 9 7 3 3 5 7 9 IN- INB+ INA+ GND V+ INA- Vref INA+ IN- INB+ INA+ OUTB OUTA INB- IN3B+ INB+ IN3A+ CNT IN3- CNT NJM75
!TYPICAL CHARACTERISTICS ICC vs Supply Voltage No signal Vref vs Supply Voltage No signal, T=5,5,5,5,-,- o C 7 5 ICC [ma] 5 o C 5 o C 5 o C 5 o C Vref [V] 3 - o C - o C Gain Output vs Frenquancy V + =9V, Vin=Vrms, INA-Aout, Non-Inverting circuit T=5,5,5,5,-,- o C Volume Gain output vs Frequency V + =9V, Vin=Vrms, INA-Aout, Inverting circuit T=5,5,5,5,-,- o C Gain Output [db] - Gain Output [db] - - - - - - - - - Frequancy [Hz]. Maximum Output Voltage vs Supply Voltage V=+9V, THD=.%, INA-Aout, Non-Inverting circuit, T=5,5,5,5,-,- o C. Maximum Output Voltage vs Supply Voltage V=+9V, THD=.%, I/O: INA-Aout, Reversing circuit T=5,5,5,5,-,- o C 3.5 3.5 Maximum Output Voltage [Vrms] 3..5..5. Maximum Output Voltage [Vrms] 3..5..5..5.5. 5 7 9. 5 7 9
!TYPICAL CHARACTERISTICS CMR vs Frequancy CMR vs Input Voltage CMR [db] - -5-5 -55 - -5-7 - o C - o C V + =9V, Vin=Vrms, OUTA, T=5,5,5,5,-,- o C 5 o C 5,-5 o C CMR [db] - - -3 - -5 - V + =9V, f=khz, BW:Hz-3kHz, OUTA, T=5,5,5,5,-,- o C - o C - o C 5 o C 5 o C 5,5 o C -75-7 - - -5-9 -9 Freequancy [Hz] -... Input Voltage [Vrms] Channel Separation vs Frequency V=+9V, Vin=Vrms, BW:-kHz, I/O: INB+-outA, Channel Separation vs Frequency V=+9V, Vin=Vrms, BW:-kHz, I/O: INB--outA, Non-reversing circuit,t=5,5,5,5,-,- o C Reversing circuit,t=5,5,5,5,-,- o C - - Channel Separation[dB] - - - Rg=Ω Rg=5.kΩ Rg=3.3kΩ Channel Separation[dB] - - - Rg=Ω Rg=3.3kΩ Rg=5.kΩ - Rg=Ω - Rg=Ω - - - Cross Talk vs Frequency V=+9V, Vin=Vrms, BW:-kHz,Non-reversing circuit I/O: INA+,INA3+,INA+,/OutA, T=5,5,5,5,-,- o C - Cross Talk vs Frequency V=+9V, Vin=Vrms, BW:-kHz,Reversing circuit II/O: INA-,INA3-,INA-,/OutA, T=5,5,5,5,-,- o C Rg=5.kΩ Rg=5.kΩ - Rg=3.3kΩ - Rg=3.3kΩ Cross Talk[dB] - Rg=Ω Cross Talk[dB] - Rg=Ω - - Rg=Ω - Rg=Ω - 7
!TYPICAL CHARACTERISTICS THD+N vs Input Voltage (Non-reversing circuit) V=+9, BW:-kHz(f=Hz), -3kHz(f=kHz, khz), THD+N vs Input Voltage (Reversing circuit) V=+9V, BW:-kHz(f=Hz), -3kHz(f=kHz, khz), I/O: INA+,/OutA, T=5,5,5,5,-,- o C I/O: INA-,/OutA, T=5,5,5,5,-,- o C f=hz f=hz THD+N [%]. f=khz,khz THD+N [%]. f=khz,khz..... Input Voltage [Vrms]... Input Voltage [Vrms] THD+N vs Frequency RippleRejection vs Frequency V= + 9V, f=khz, BW:-kHz, Vin=Vrms, Vrp=mV, f=hz, Rg=Ω,V + =9V, T=5 o C I/O: INA-Aout, T=5,5,5,5,-,- o C - - THD+N [%].. Non-reversing circuit Reversing circuit Ripple Rejection [db] -3 - -5. - -7. RippleRejection vs Supply Voltage Vrip=mV, f=hz, T=5 o C - - Ripple Rejection [db] -3 - -5 - -7 - -9-5 5 Ripple Rejection [db] - - - -3 - -5 - -7 - -9 - RippleRejection vs Signal source resistance V + =9V, Vrp=mV, f=hz, T=5 o C. Signal source resistance [kω]
!TYPICAL CHARACTERISTICS NOISE vs Signal source resistance V= + 9V, A-Weighting, f=khz, T=5 o C, Non-Inverting Output Voltage vs Load Resistance V= + 9V, f=khz, I/O: INA-outA T=5,5,5,5,,-,- o C Output Noise [dbv] - - - - - -. Signal source resistance [kω] Maximum Output Voltage [Vrms] - - - - - RL[Ω] [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. 9