NJU7085 JRC, NJU7085 Datasheet
NJU7085
Related parts for NJU7085
NJU7085 Summary of contents
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... High-Power & Low-Voltage Stereo Audio Power Amplifier with 3D Surround GENERAL DESCRIPTION The NJU7085 is a stereo audio power amplifier with surround sound technology for portable applications. No external coupling capacitors are required because of the differential outputs. The closed loop gain is adjusted by two external resistors ...
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... NJU7085 www.DataSheet4U.com PIN CONFIGURATION No. Symbol 1 D2 Mode Control Switch Mode Control Switch Mode Control Switch GND GND 6 LOUT+ Lch+ Output 7 V+ Power Supply 8 V+ Power Supply 9 LOUT- Lch- Output 10 GND GND LINP Power Amp Lch Input ...
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... VBYP V =-26dBV, f=100Hz Lin→Lout, eala mode, VSUR1 R1+R2=4.7k f=100Hz, G Lin→Lout, eala mode VSUR2 R1+R2=54.7k V =-26dBV, f=100Hz Lin→Lout, Mobile mode, VSUR3 R1+R2=4.7k f=100Hz, G Lin→Lout, Mobile mode, VSUR4 R1+R2=54.7k NJU7085 UNIT MIN. TYP. MAX. UNIT 2.8 3.0 5.5 V MIN. TYP. MAX. UNIT 4.6 8 4.6 8.0 ...
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... NJU7085 www.DataSheet4U.com AC Characteristics + (Ta= =3V, G =6dB, V =-20dBV, f=1kHz PARAMETER Output Power Power Supply Rejection Raito Mute Attenuation Channel Separation Input Resistance Output Offset Voltage + Mode Control ( Ta= PARAMETER High Level Input Voltage Low Level Input Voltage CONTROL TERMINAL EXPLANATION MUTE/Standby Mode Control (MUTE, STBY Terminal) ...
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... Mode Control Switch 7,8, V+ Power 25,26 GND GND 5,10, 23,28 6 LOUT+ Lch+ Output LOUT- Lch- Output 9 ROUT- Rch- Output 24 ROUT+ Rch+ Output 27 12 LINP Lch Input to Power Amp RINP Rch Input to PowerAmp 21 EQUIVALENT CIRCUIT FUNCTION Power GND NJU7085 TERMINAL DC VOLTAGE 100 V+ 0 V+/2 V+/2 100 - 5 - ...
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... NJU7085 www.DataSheet4U.com PIN No. SYMBOL 13 LOUTeala Lch Input to eala Processer ROUTeala Rch Input to eala Processer Filter 15 NFLO Filter 16 NFLI Filter NFRI EQUIVALENT CIRCUIT FUNCTION TERMINAL VOLTAGE V+/2 20k V+/2 20k 100 V+/2 20k V+/2 20k 100 DC ...
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... PIN No. SYMBOL 17 LIN Lch Input RIN Rch Input 18 30 Vref Reference Voltage 32 ealaTC Filter 4, Connection 22,29 31 DNC Do Not Connection EQUIVALENT CIRCUIT FUNCTION NJU7085 TERMINAL V+/2 VREF 100k 10p 100 100 10p V+/2 20k 100 20k 200k 100 200k DC VOLTAGE - 7 - ...
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... NJU7085 www.DataSheet4U.com APPLICATION CIRCUIT C5= 22nF Ci=0.1uF RIN Rch Ci=0.1uF LIN Lch Bias V+ Block + GND C1= 10uF - 8 - R2=50k Ω C7=3.3nF C6=3.3nF R1=4.7k Ω PS NFLO NFLI NFRI eala Processor Block Control Block Vref ealaTC DNC D2 D1 C2= C3= R9= R8= 1uF 0.1uF 100k Ω 100k Ω Mode Control Ri=20k Ω ...
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... The NJU7085 includes pop noise protection circuit eliminating noises during turn-on and turn-off transitions. 1. Notice 1.1 The NJU7085 may be not effective for a sound without the reverberation such as FM and monaural signal source. 1.2 eala Mobile mode may be not effective in the system that speaker distance is more than 20 cm. In this case, we recommend eala mode. ...
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... NJU7085 www.DataSheet4U.com 2.1External parts 2.1.1 power supply bypassing capacitor Select C1 which is enough good thermal characteristics and high frequency characteristics. The wiring pattern between C1 and IC should be shortened to prevent the generating of wiring resistance. 2.1.2 Input coupling capacitor The input impedance and input coupling capacitor (Ci) form a high pass filter which limits low frequency response ...
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... SP FILTER Bypass MIN VR MAX Fig.2 Bypass Mode Bypass L+R Phase eala,Mobile 3D SP Shifter FILTER Bypass MIN VR MAX Fig.3 eala Mode NJU7085 Bypass LOUT eala LINP eala Mobile Phase Shifter ROUT RINP eala LOUT eala LINP eala LOUT+ Mobile LOUT- ROUT- ...
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... LIN L ‐ R RIN 3 Power ON/OFF and pop noise during turn-on and turn-off transitions. The NJU7085 reduces pop noise by using capacitor for charge & discharge. The following shows tips of reducing pop noise. 3.1 Power Supply ON/OFF Power ON/OFF should be changed on the STBY mode (D0,D1,D2=L,L,L) 3 ...
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... O Ta= Charge Supply Voltage[V] (STBY mode Supply Voltage[V] NJU7085 Reference Voltage vs. Ambient Temperature V+=3V 3 2.5 2 1.5 1 0.5 0 -50 - 100 Operating Voltage[V] Supply Current vs. Ambient Temperature V+=3V,Gv=6dB,RL=OPEN Bypass,eala eala mobile,Mute 2 Charge ...
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... NJU7085 www.DataSheet4U.com ■TYPICAL CHARACTERISTICS CNT Terminal Voltage vs. Supply Current(Ta) V+=3V,RL=OPEN 1.E-01 1.E-02 1.E-03 1.E-04 1.E-05 1.E-06 1.E-07 1.E-08 Ta=85 1.E-09 Ta=-25 1.E-10 1.E-11 Ta=-40 1.E- Vsd Terminal Voltage[V] Output Noise Voltage vs. Ambient Temperature V+=3V 、 Rg=0Ω 、 Reff=4.7kΩ 、 Vout=Lch,A-w eighted -80 -85 -90 -95 Bypass -100 -105 -110 -50 - Ambient Temperature[ Maximum Input Voltage vs. Ambient Temperature V+=3V,RL=4Ω ...
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... O C 0.1 0.01 1.E-03 1.E-02 50 100 150 100 150 1.E-01 1.E+00 1.E+01 Output Pow er[W] NJU7085 Maximum Input Voltage vs. Pow er Supply Voltage RL=4Ω,f=100Hz,Reff=4.7kΩ,THD=1%,mobile -10 -12 Rch -14 Lch -16 -18 -20 2.5 3 3.5 4 4.5 Pow er Supply Voltage[V] Phase vs, Frequency （ Ta) V+=3V,RL=4Ω,Vin=-20dBV, mobile 180 135 90 Rch Ta=-40,25,85 ...
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... NJU7085 www.DataSheet4U.com ■TYPICAL CHARACTERISTICS THD+N vs. Output Pow er V+=5V,Gv=6dB(PA),f=1kHz,RL=8Ω,Vout=Lch,Bypass 100 0.1 0.01 1.E-03 1.E-02 THD+N vs. Output Pow er V+=3V,Gv=12dB(PA),f=1kHz,RL=4Ω,Vout=Lch,Bypass 100 0.1 0.01 1.E-03 1.E-02 Output Pow er[W] THD+N vs. Output Pow er V+=5V,Gv=6dB(PA),f=100Hz,RL=8Ω,Vout=Lch,eala 100 0.1 0.01 1.E-03 1.E-02 Output Pow er[W] ...
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... V+=3V 、 RL=4Ω 、 Reff=54.7kΩ 、 Vout=Lch 、 mobile Ta=- Ta= 1.E+01 1.E+02 Frequency[Hz 1.E+03 1.E+04 1.E+05 Ta= 1.E+03 1.E+04 1.E+05 Ta= 1.E+03 1.E+04 1.E+05 NJU7085 Voltage Gain vs. Frequency(Ta) V+=3V,RL=4Ω,Reff=4.7kΩ,Vout=Lch,eala 25 Ta=- Ta= Ta= 1.E+01 1.E+02 1.E+03 1.E+04 Frequency[Hz] Voltage Gain vs. Frequency(Ta) V+=3V 、 RL=4Ω 、 Reff=4.7kΩ 、 Vout=Lch 、 mobile 25 O Ta=-40 C Ta= ...
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... NJU7085 www.DataSheet4U.com ■TYPICAL CHARACTERISTICS PSRR vs. Frequency(Ta) V+=3V,RL=4Ω,RIN=GND,Vout=Lch,Bypass 70 60 Ta=- 1.E+01 1.E+02 1.E+03 Frequency[Hz] Pow er Dissipation vs. Output Pow er V+=5V,Gv=6dB,RL=8Ω,f=1kHz, Ta=25 O C,Vout=Lch,Bypass 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 0.5 Output Pow er[W] Output Pow er vs. Pow er Dissipation Gv=12dB(PA),f=1kHz,RL=4Ω,Ta=25 ℃ ,Bypass 1.2 1 Lch,Rch:THD=10% 0.8 0.6 0.4 0 Pow er Dossipation[ Ta=25, ...
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... Frequency[Hz] 1.E+03 1.E+04 1.E+05 NJU7085 [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 ...