NJW1240 5Vrms Ground Referenced 6-Channel Line Amplifier GENERAL DESCRIPTION The NJW1240 is a 6-channel audio line amplifier for High Voltage Pre-out of Car AV system. It can swing 5Vrms(14.1V peak-to peak) singal at 8V opearating voltage because of including the charge pump circuit. Ground-referenced outputs eliminate output coupling capacitor. The pop noise suppression circuit reduces a pop noise at the power-on and power-off. ■ PACKAGE OUTLINE NJW1240V FEATURES ● Operating Voltage ● Operating Current ● ● ● ● ● ● ● ● ● ● ● +6 to +10V IDD=15mA typ. + at V =8V, RL=47kΩ, No Signal 5.0Vrms min. 0.0008% typ -102dB typ. Maximum Output Voltage Low Distortion Low Output Noise Output Coupling Capacitor-less External Synchronizing Divide-by-2 Pop Noise Suppression Circuit External Mute Gain Select +6dB/+8.3dB RF Immunity OpAmp tolerant to FR noise. (ex. mobile phone) Bi-CMOS Technology Package Outline SSOP32 BLOCK DIAGRAM V+ IN1 OUT1 Mute Tr VV+ IN2 OUT2 Mute Tr VV+ IN3 OUT3 Mute Tr - V V+ IN4 OUT4 Mute Tr VV+ IN5 OUT5 Mute Tr VV+ IN6 OUT6 Mute Tr V- Gain Select Ver. 1.1E Charge Pump Pop Noise Suppression V- V + Detector –1– NJW1240 NJW1240 PIN CONFIGURATION No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 –2– Symbol IN1 IN2 IN3 IN4 IN5 IN6 MUTE GAIN V IN V OUT RegCNT NC NC CLK + V Reg NC Function Input 1 Input 2 Input 3 Input 4 Input 5 Input 6 MUTE / Pop Noise Suppression Gain Select V- Power Input V- Power Output V- Power Control No Connect No Connect External Clock Input V+ Power Supply for Regulator No Connect No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Symbol Function NC No Connect FB V- Power Supply External Setting CP Flying Capacitor Positive Terminal NC No Connect NC No Connect GND Ground CN Flying Capacitor Negative Terminal MUTE_TC Pop Noise Suppression Capacitor + V A V+ Power Supply for Analog GND Ground Output 6 OUT6 Output 5 OUT5 Output 4 OUT4 Output 3 OUT3 OUT2 Output 2 OUT1 Output 1 NJW1240 ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER SYMBOL RATING UNIT 10.5 V VCLK -0.3～+6 V VRegCNT -0.3～+6 V Supply Voltage V CLK Terminal Voltage - V Power Supply Control Voltage FB Terminal Voltager + - VFB Maximum Input Voltage (V OUT)+6 VIN Power Dissipation V + V +0.3 PD 905 V (Note1) mW Operating Temperature Range Topr -40 ~ +85 °C Storage Temperature Range Tstg -40 ~ +125 °C (Note1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting ■ RECOMMENDED OPERATING CONDITIONS (Ta=25°C unless otherwise specified) PARAMETER SYMBOL Operating Voltage External Clock Input Range TEST CONDITION MIN. TYP. MAX. UNIT V 6 8 10 V fCLK 150 - 1250 kHz DUTY 45 - 80 % + (Note2) External Clock Duty Input Range (Note2) The regulator for V- power supply operates by the half of fCLK. ELECTRICAL CHARACTERISTICS (Ta=25°C, V+=8V, f=1kHz, Vin=0dBV, RL=47kΩ, GAIN=Low, MUTE=High, RegCNT=High unless otherwise specified) PARAMETER SYMBOL Operating Current IDD Voltage Gain1 GV1 Voltage Gain2 GV2 TEST CONDITION No signal GAIN=High MIN. TYP. MAX. UNIT - 12 20 mA 5.5 6.0 6.5 dB 7.8 8.3 8.8 dB Maximum Output Voltage VOMAX THD=1% 5 - - Vrms Mute Level VMUTE MUTE=Low - -100 -80 dB Output Noise Voltage VNO Rg=0Ω , A=Weighted - -102 (7.94) - dBV (µV) Total Harmonic Distortion THD BW:400Hz-22kHz - 0.0008 - % 80 - - dB Channel Separation CS Rg=600Ω Internal Oscillating Frequency fOSC fCLK=No signal - 300 - kxHz Output Offset Voltage VOS Rg=0Ω - - 8 mV MIN. TYP. MAX. UNIT CONTROL CHARACTERISTICS (Ta=25°C, V+=8V, f=1kHz, Vin=0dBV, RL=47kΩ unless otherwise specified) PARAMETER SYMBOL TEST CONDITION + Mute Terminal High MuteH MUTE OFF 2.3 - V V Mute Terminal Low MuteL MUTE ON 0 - 0.7 V 2.3 - V + V 0 - 0.7 V Gain Terminal High GainH Gv=8.3dB Gain Terminal Low GainL Gv=6dB CLK Terminal High CLKH 2.3 - 5.5 V CLK Terminal Low CLKL 0 - 0.7 V –3– NJW1240 TERMINAL DESCRIPTION Terminal SYMBOL FUNCTION 1 2 3 4 5 6 IN1 IN2 IN3 IN4 IN5 IN6 INPUT1 INPUT2 INPUT3 INPUT4 INPUT5 INPUT6 EQUIVALENT CIRCUIT V+A V+A V+A 10kΩ 0V 50kΩ 1pF V-IN V-IN V +A 7 8 MUTE GAIN MUTE/Pop Noise Suppression Gain Select VOLTAGE V+A 20kΩ 0V 100kΩ 1pF V -IN Reg(5V) 500kΩ 100Ω 11 RegCNT V- Power Control 0V 500kΩ Reg(5V) 14 CLK External Clock Input Reg(5V) 100Ω 0V 1MΩ Reg(5V) 18 FB V- Power Supply External Setting 100Ω 1kΩ 2pF V -OUT –4– NJW1240 TERMINAL DESCRIPTION Terminal SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE V+Reg 19 CP Flying Capacitor Positive Terminal - V -OUT 23 CN Flying Capacitor Negative Terminal - V-OUT V +A 24 MUTE_TC Pop Noise Suppression Capacitor V-OUT V+A V +A 100kΩ 50kΩ 0V 1MΩ V -IN 27 28 29 30 31 32 OUT6 OUT5 OUT4 OUT3 OUT2 OUT1 Output6 Output5 Output4 Output3 Output2 Output1 V -IN V +A V+A V -IN V+A 200Ω 0V 50Ω V -IN 200Ω FB V-IN V -IN –5– NJW1240 TEST CIRCUIT (IDD) IN1 C1=1uF OUT1 M ute 1 IN2 C2=1uF 50kΩ M ute 2 C3=1uF IN3 C4=1uF IN4 50kΩ 50kΩ C6=1uF IN6 M ute 50kΩ 50kΩ M ute 50kΩ Gain Select 6dB/8dB 100kΩ Bias 9 10 V+ V+ 25 C12=10nF MUTE _TC + C19=10uF V+ C11=1uF A 23 GND Negative Voltage Regulator 11 R2=680kΩ NC 12 22 NC C10=1uF 21 NC NC 13 20 CLK CP 14 19 V+Reg C9=10nF RL=47kΩ V +A CN RegCNT V+ RL=47kΩ 27 24 V-OUT C8=1uF 28 26 100kΩ 8 V-IN RL=47kΩ GND Pop Noise Suppression 7 GAIN RL=47kΩ 29 OUT6 6 MUTE 30 OUT5 M ute 5 V+ RL=47kΩ OUT4 4 IN5 RL=47kΩ 31 OUT3 M ute 3 C5=1uF 32 OUT2 FB 15 18 NC NC 16 17 V-OUT TEST CIRCUIT (Gv, VOMAX, THD, VMUTE) IN1 C1=1uF OUT1 M ute 1 C2=1uF IN2 C3=1uF IN3 50kΩ M ute 2 50kΩ IN4 C5=1uF IN5 M ute 50kΩ 50kΩ M ute 50kΩ MUTE 50kΩ Gain Select 6dB/8dB 100kΩ 9 Bias V-OUT C8=1uF 11 NC 12 NC 13 CLK 14 V+Reg C9=10nF –6– 28 RL=47kΩ RL=47kΩ 27 RL=47kΩ V +A V+ V+ 25 C12=10nF MUTE _TC + C19=10uF 24 C11=1uF 23 RegCNT R2=680kΩ 29 CN 10 V+ RL=47kΩ 26 100kΩ 8 V-IN RL=47kΩ GND Pop Noise Suppression 7 GAIN 30 OUT6 M ute 6 V+ 31 OUT5 5 IN6 V OUT4 M ute 4 C6=1uF RL=47kΩ OUT3 3 C4=1uF 32 OUT2 GND Negative Voltage Regulator 22 NC C10=1uF 21 NC 20 CP 19 FB 15 18 NC NC 16 17 V-OUT NJW1240 TEST CIRCUIT (VNO) IN1 C1=1uF OUT1 M ute 1 C2=1uF IN2 C3=1uF IN3 M ute C5=1uF IN5 M ute MUTE 29 50kΩ 28 50kΩ 27 50kΩ Pop Noise Suppression 26 9 V +A Gain Select 6dB/8dB 100kΩ Bias C19=10uF 24 23 GND Negative Voltage Regulator 11 R2=680kΩ NC 12 22 NC C10=1uF 21 NC NC 13 20 CLK CP 14 19 V+Reg C9=10nF + CN C11=1uF 10 V V+ C12=10nF MUTE _TC RegCNT + V+ 25 V-OUT C8=1uF RL=47kΩ GND 8 V-IN RL=47kΩ OUT6 M ute 100kΩ GAIN RL=47kΩ OUT5 M ute 7 RL=47kΩ OUT4 M ute 6 V+ 30 50kΩ 5 IN6 RL=47kΩ OUT3 4 C6=1uF 31 50kΩ 3 IN4 V RL=47kΩ OUT2 2 C4=1uF 32 50kΩ FB 15 18 NC NC 16 17 V-OUT TEST CIRCUIT (CS) IN1 C1=1uF OUT1 M ute 1 Rg=600Ω IN2 C2=1uF 50kΩ M ute 2 Rg=600Ω IN3 C3=1uF 50kΩ IN4 C4=1uF M ute 50kΩ IN5 C5=1uF 50kΩ IN6 C6=1uF M ute 50kΩ MUTE 50kΩ GAIN Gain Select 6dB/8dB 100kΩ 9 Bias V-OUT C8=1uF 11 NC 12 NC 13 CLK 14 V+Reg C9=10nF RL=47kΩ RL=47kΩ 27 RL=47kΩ V +A V+ V+ 25 C12=10nF MUTE _TC + C19=10uF 24 C11=1uF 23 RegCNT R2=680kΩ 28 CN 10 V+ 29 26 100kΩ 8 V-IN RL=47kΩ GND Pop Noise Suppression 7 RL=47kΩ OUT6 M ute 6 Rg=600Ω V+ 30 OUT5 5 Rg=600Ω 31 OUT4 M ute 4 Rg=600Ω V RL=47kΩ OUT3 3 Rg=600Ω 32 OUT2 GND Negative Voltage Regulator 22 NC C10=1uF 21 NC 20 CP 19 FB 15 18 NC NC 16 17 V-OUT –7– NJW1240 APPLICATION CIRCUIT C1=1uF IN1 C2=1uF IN2 50kΩ IN3 Mute 50kΩ IN4 50kΩ IN5 50kΩ IN6 50kΩ MUTE 50kΩ GAIN Gain Select 6dB/8dB 100kΩ 9 Bias RL=47kΩ 27 RL=47kΩ V+A 25 V+ C12=1uF V+ + C19=100uF 11 NC 12 24 GND Negative Voltage Regulator 22 NC 21 NC NC 13 20 CLK 14 + V Reg C11=1uF 23 RegCNT R2=680kΩ –8– 28 CN 10 C9=1uF RL=47kΩ MUTE _TC R1=10Ω V-OUT C8=1uF V+ 29 26 100kΩ 8 R3=1kΩ V-IN C7=1uF RL=47kΩ GND Pop Noise Suppression 7 30 OUT6 Mute 6 + RL=47kΩ OUT5 Mute 5 C6=1uF 31 OUT4 Mute 4 C5=1uF RL=47kΩ OUT3 Mute 3 C4=1uF 32 OUT2 2 C3=1uF 3V~V OUT1 Mute 1 C10=1uF CP 19 FB 15 18 NC NC 16 17 *Connect to V-OUT[10pin] NJW1240 TYPICAL CHARACTERISTICS Supply Current vs Supply Voltage RL=NoLoad , MUTE=H , GAIN=L Supply Current vs Temperature V+=8V , RL=NoLoad , MUTE=H , GAIN=L 20 20 Ta=85oC 15 10 Ta=25oC Ta=-40oC 5 Supply Current[mA] Supply Current[mA] 15 10 5 0 0 0 1 2 3 4 5 6 7 8 9 10 11 -50 -25 0 25 Supply Voltage[V] 50 75 100 125 Temperature[oC] Output DC Offset vs Temperature V+=8V , Vin=NoSignal , RL=47kΩ MUTE=H , GAIN=L VoltageGain vs Frequency V+=8V , Vin=0dBV , RL=47kΩ , MUTE=H 5 15 4 CH3 2 CH4 1 CH5 0 -1 CH1 -2 CH2 VoltageGain[dB] Output DC Offset[mV] 3 GAIN=H Ta=-40,25,85oC 10 5 GAIN=L Ta=-40,25,85oC CH6 -3 -4 -5 0 -50 -25 0 25 50 75 100 125 10 100 Temperature[ C] 0 0 -20 -20 -40 -60 Ta=25oC 10000 100000 OutputNoisel vs Temperature V+=8V, Rg=0Ω , RL=47kΩ , MUTE=H , GAIN=L Filter=A-w eighted OutputNoise[dBV] MuteLevel[dB] MuteLevel vs Frequency V+=8V, RL=47kΩ , MUTE=L , GAIN=L Filter=Bandpass -80 1000 Frequency[Hz] o Ta=85oC -100 -40 -60 -80 -100 Ta=-40oC -120 10 100 1000 Freauency[Hz] 10000 100000 -120 -50 -25 0 25 50 75 100 Temperature[oC] –9– NJW1240 TYPICAL CHARACTERISTICS 120 ChannelSeparation vs Frequency V+=8V, Vin=0dBV , Input=IN1,2,4,5,6 , Rg=620Ω RL=47kΩ , MUTE=H , GAIN=L , Filter=Bandpass measure=OUT3 , CS=Vin*Gv/ Measure 120 Ta=-40oC Ta=25oC 100 ChannelSeparation[dB] 100 ChannelSeparation[dB] ChannelSeparation vs Frequency V+=8V, Vin=0dBV , Input=IN1,2,4,5,6 , RL=47kΩ MUTE=H , GAIN=L , Ta=25oC , Filter=Bandpass measure=OUT3 , CS=Vin*Gv/ Measure Ta=85oC 80 60 40 20 Rg=0Ω 80 Rg=620Ω 60 40 20 0 0 10 100 1000 10000 100000 10 100 Freauency[Hz] THD+N vs Output Voltage V+=8V , f=1kHz , RL=47kΩ , MUTE=H , GAIN=L Filter=400Hz to 22kHz 10000 100000 THD+N vs Output Voltage V+=8V , RL=47kΩ , MUTE=H , GAIN=L , Ta=25oC Filter=22Hz to 22kHz 10 10 1 1 0.1 0.1 THD+N[%] THD+N[%] 1000 Freauency[Hz] 0.01 0.01 f=10kHz Ta=-40oC 0.001 0.001 f=100Hz,1kHz Ta=25,85oC 0.0001 0.01 0.1 1 0.0001 0.01 10 0.1 Output Voltage[Vrms] 1 10 Output Voltage[Vrms] PSRR vs Frequency V+=8V, Vripple=100mVrms , RL=47kΩ , MUTE=H GAIN=L , Ta=25oC , Filter=Bandpass THD+N vs Frequency V+=8V , Vin=0dBV , RL=47kΩ , MUTE=H , GAIN=L Ta=25oC , Filter=22Hz to 80kHz 80 10 70 60 0.1 PSRR[dB] THD+N[%] 1 0.01 50 40 30 20 0.001 10 0 0.0001 10 100 1000 Frequency[Hz] – 10 – 10000 100000 10 100 1000 Freauency[Hz] 10000 100000 NJW1240 TYPICAL CHARACTERISTICS OutputNoise vs fosc V+=8V, Rg=0Ω , RL=47kΩ , MUTE=H , GAIN=L Ta=25oC , Filter=A-Weighted THD+N vs fosc V+=8V, Vin=0dBV , f=1kHz , RL=47kΩ , MUTE=H GAIN=L , Ta=25oC , Filter=400Hz to 22kHz 0.1 0 0.01 -40 THD+N[%] OutputNoise[dBV] -20 -60 -80 0.001 -100 -120 0.0001 0 200 400 600 800 1000 0 1200 200 400 MaximumOutputVoltage vs fosc V+=8V, f=1kHz , Input=IN1~IN6 , RL=47kΩ MUTE=H , GAIN=L , Ta=25oC , THD+N=1% Filter=400Hz to 22kHz 6 600 800 1000 1200 fosc[kHz] fosc[kHz] MaximumOutputVoltage vs LoadResistance V+=8V, f=1kHz , Input=IN1~IN6 , MUTE=H , GAIN=L fosc=Internal , Ta=25oC , THD+N=1% Filter=400Hz to 22kHz 8 MaximumOutputVoltage[Vrms] MaximumOutputVoltage[Vrms] V+=10V 5.5 5 4.5 4 7 V+=8V 6 5 V+=6V 4 3 2 0 200 400 600 800 1000 1200 1 10 fosc[kHz] Voltage Gain vs GAIN Terminal Voltage V+=8V, Vin=0dBV , f=1kHz , RL=47kΩ , MUTE=H Ta=25oC MuteLevel vs MUTE Terminal Voltage V+=8V, Vin=0dBV , f=1kHz , RL=47kΩ , GAIN=L Ta=25oC 20 10 0 MuteLevel[dB] 9 VoltageGain[dB] 100 RoadResistance[kΩ] 8 7 H->L L->H 6 -20 -40 H->L L->H -60 -80 5 -100 0 0.5 1 1.5 2 GAIN Teaminal Voltage[V] 2.5 3 0 0.5 1 1.5 2 2.5 3 MUTE Terminal Voltage[V] – 11 – NJW1240 [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. – 12 –