NJM2783V-TE1

NJM2783 Monaural Microphone Amplifier with ALC "GENERAL DESCRIPTION The NJM2783 is a monaural microphone amplifier with auto level control function to avoid distortion due to clipping. The voltage gain and the limit level are adjustable by external resistors. It is suitable for mini component audio system, home audio system, karaoke and others. "PACKAGE OUTLINE NJM2783V " FEATURES • Operating Voltage • Monaural Microphone Amplifier • Auto level control (ALC) function (Adjustable the limit level by external resistors • Adjustable the voltage gain by external resistors • Additional Gain Amplifier • Built-in Buffer Amplifier • Low Equivalent Input Noise • Carefully designed to reject RF noise • Bipolar Technology • Package Outline +2.7 to +13.0V 200mVrms to 2Vrms) +20 to +63dB (RSENSE=OPEN) 0dB/+20dB switchable 1µVrms typ. SSOP14 " BLOCK DIAGRAM IN GAIN SW INT SENSE VREF V+ Detector Microphone Amprifier GND Bias Additional Gain 0dB/+20dB Buffer Amplifier 100k 100k VCR GAIN1 Version 7.0E GAIN2 DET OUT BUFFIN BUFFGAIN BUFFOUT –1– NJM2783 "PIN CONFIGURATION SSOP14 –2– No. Symbol 1 2 3 4 5 6 7 8 9 10 11 12 13 14 GAIN1 GAIN2 DET OUT BUFFIN BUFFGAIN BUFFOUT GND V+ VREF SENSE INT GAIN SW IN 1 14 2 13 3 12 4 11 5 10 6 9 7 8 Function Microphone Amp Gain Setting 1 Microphone Amp Gain Setting 2 Detector Input Microphone Amp Output Buffer Input Buffer Gain Setting Buffer Output Ground Power Supply Reference Voltage Limit Level Setting Recovery Time Setting Gain Setting Microphone Input Version 7.0E NJM2783 "ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER SYMBOL Power Supply Voltage V Power Dissipation + RATING UNIT +14 V 1) 450* PD + 2) mW Maximum Input Voltage VIMAX 0~V * V Operating Temperature Range Topr -40 ~ +85 °C Storage Temperature Range Tstg -40 ~ +125 °C 1) * EIA/JEDEC STANDARD Test board (76.2 x 114.3 x 1.6mm, 2layers, FR-4) mounting 2) * Don’t put Input Voltage more than Power Supply Voltage. "RECOMMENDED OPERATING VOLTAGE RANGE (Ta=25°C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT - 2.7 9.0 13.0 V MIN. TYP. MAX. UNIT + Operating Voltage Range V "ELECTRICAL CHARACTERISTICS + #POWER SUPPLY (Ta=25°C, V =9.0V unless otherwise specified) PARAMETER SYMBOL TEST CONDITION Operating Current ICC No signal - 3.5 6.0 mA Reference Voltage VREF No signal 4.2 4.5 4.8 V MIN. TYP. MAX. UNIT 60 63 66 dB 40 43 46 dB 2.0 2.4 - Vrms 0.7 1.0 1.3 Vrms 0.7 1.0 1.3 Vrms 1.6 2.0 2.4 Vrms - -120 (1.0) -110 (3.2) dBV (µVrms) - - 1 % - -35 -20 dB MIN. TYP. MAX. UNIT #AC CHARACTERISTICS + (Ta=25°C, V =9.0V, VIN=0.7mVrms, f=1kHz, RG1=330Ω, RG2=47kΩ, RSENSE=OPEN, RL=4.7kΩ, GAIN SW=+20dB unless otherwise specified) PARAMETER SYMBOL Voltage Gain 1 GV1 Voltage Gain 2 GV2 Maximum Output Voltage VOM ALC Level 1 VLIM1 ALC Level 2 VLIM2 ALC Off VOFF Equivalent Input Noise Voltage VNO Total Harmonic Distortion Power Supply Ripple Rejection TEST CONDITION GAIN SW=0dB THD=1% VIN=1.4mVrms RSENSE=47kΩ VIN=40mVrms RSENSE=47kΩ VIN=1.4mVrms Rg=0Ω, A-weighted THD+N BW=400-30kHz Vripple=100mVrms, f=1kHz RR + #CONTROL CHARACTERISTICS (Ta=25°C, V =9.0V unless otherwise specified) PARAMETER SYMBOL TEST CONDITION + V High Level Input Voltage VIH - 2.0 - V Low Level Input Voltage VIL - 0 - 0.5 V Control Current ISW - - 100 µA Version 7.0E VIH=5V –3– NJM2783 "CONTROL TERMINAL EXPLANATION GAIN SW (13 pin) MODE STATUS NOTE 0dB L The gain of microphone amplifier is not increased. +20dB H The gain of microphone amplifier is increased +20dB. "TEST CIRCUIT V+ VIN 0.47µF V 14 V IH IL 13 IN 12 GAIN SW RSENSE 1µF 11 INT 10 SENSE 10µF 10µF 9 VREF GAIN1 1 2 RG2 RG1 10µF –4– GAIN2 DET GND Bias OUT 3 8 V+ Detector V+ 4 BUFFIN 5 BUFFGAIN 6 BUFFOUT 7 0.47µF 1µF 4.7µF 4.7µF VR 10k Ω V 4.7k Ω Version 7.0E NJM2783 "APPLICATION CIRCUIT V+ V+ INPUT 0.47µF 14 1µF 13 IN 12 GAIN SW 47kΩ 11 INT 10 SENSE 10µF 10µF 9 VREF GAIN1 1 2 47k Ω 330Ω 10µF Version 7.0E GAIN2 DET GND Bias OUT 3 8 V+ Detector V+ 4 BUFFIN 5 BUFFGAIN 6 BUFFOUT 7 0.47µF 1µF 4.7µF 4.7µF VR 10kΩ OUTPUT –5– NJM2783 ! TERMINAL DESCRIPTION PIN NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT V+ 1 GAIN1 V+ V+ V+/2 500 Microphone Amp Gain Setting 1 TERMINAL DC VOLTAGE 20p V+ V+ V+ 50 V+ GAIN2 200 Microphone Amp Gain Setting 2 V+/2 50 2 V+ 3 DET Detector Input V+ 24k V+/2 V+ V+ V+ 50 V+ OUT 200 Microphone Amp Output V+/2 50 4 V+ BUFFIN 1k Buffer Input 100k 5 V+ V+/2 10p VREF –6– Version 7.0E NJM2783 ! TERMINAL DESCRIPTION PIN NO. SYMBOL FUNCTION V+ 6 BUFFGAIN TERMINAL DC VOLTAGE EQUIVALENT CIRCUIT V+ V+/2 1k Buffer Gain Setting 10p V+ 50 V+ BUFFOUT V+/2 Buffer Output 50 7 V+ V+ V+ V+ V+ 200k 44k V+ VREF 200 Reference Voltage V+/2 200 40k 200k 10 V+ 11 SENSE V+ V+ V+ V+ 200 Limit Level Setting V+ 0V 200 V+ V+ V+ V+ 200 12 Version 7.0E INT Recovery Time Setting 0V –7– NJM2783 ! TERMINAL DESCRIPTION PIN NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT V+ GAIN SW V+ 200 Gain Setting 150k 0V 275k 13 TERMINAL DC VOLTAGE V+ IN 500 Microphone Input 100k 14 V+ 0V 20p VREF –8– Version 7.0E NJM2783 ! TYPICAL CHARACTERISTICS Supply Current vs. Supply Voltage Supply Current vs. Temperature No Signal, RSENSE =OPEN, GAIN SW=+20dB No Signal, RSENSE =OPEN, GAIN SW=+20dB 6 6 5 5 Supply Current [mA] Supply Current [mA] Ta=85oC 4 Ta=25oC 3 Ta=-40oC 2 1 4 V+=13V 3 V+=9V V+=2.7V 2 1 0 0 0 2 4 6 8 10 12 14 -50 -25 0 25 50 125 Reference Voltage vs. Supply Voltage Reference Voltage vs. Temperature No Signal, RSENSE =OPEN, GAIN SW=+20dB 8 8 Ta=-40oC V+=13V 7 7 Ta=25oC 6 Reference Voltage [V] 6 Reference Voltage [V] 100 Temperature [ oC] No Signal, RSENSE =OPEN, GAIN SW=+20dB 5 Ta=85oC 4 3 V+=9V 5 4 3 2 2 1 1 0 V+=2.7V 0 0 2 4 6 8 10 12 14 -50 -25 0 25 50 75 100 Supply Voltage [V] Temperature [ oC] Voltage Gain vs. Frequency Voltage Gain vs. Frequency V +=9V, V IN=0.7mVrms, RG1=330Ω, RG2=47kΩ RSENSE=OPEN, GAIN SW=+20dB 80 Ta=85oC 50 Voltage Gain [dB] Ta=25oC 60 Ta=-40oC 50 125 V +=9V, V IN=10mVrms, R1=1kΩ, R2=47kΩ GAIN SW=0dB 60 Ta=85oC 70 Voltage Gain [dB] 75 Supply Voltage [V] Ta=25oC 40 Ta=-40oC 30 40 20 10 100 1000 Frequency [Hz] Version 7.0E 10000 100000 10 100 1000 10000 100000 Frequency [Hz] –9– NJM2783 ! TYPICAL CHARACTERISTICS Output Voltage vs. Input Voltage 10 Output Voltage vs. Input Voltage V +=9V, f=1kHz, RG1=330Ω, RG2=47kΩ GAIN SW=+20dB, Ta=25oC 10 V +=9V, f=1kHz, RG1=330Ω, RG2=47kΩ GAIN SW=0dB, Ta=25oC RSENSE =100kΩ 1 RSENSE =100kΩ Output Voltage [Vrms] Output Voltage [Vrms] 1 RSENSE =47kΩ 0.1 RSENSE =22kΩ RSENSE =10kΩ RSENSE =47kΩ RSENSE=22kΩ 0.1 0.01 0.001 0.00001 10 RSENSE=10kΩ 0.01 0.0001 0.001 0.01 0.1 1 0.001 0.00001 10 0.0001 0.001 0.01 Output Voltage vs. Input Voltage V +=9V, f=1kHz, RG1=330Ω, RG2=47kΩ RSENSE =47kΩ, GAIN SW=+20dB 10 Ta=85oC V +=9V, f=1kHz, RG1=330Ω, RG2=47kΩ RSENSE =47kΩ, GAIN SW=0dB Ta=85oC Ta=25oC Output Voltage [Vrms] Output Voltage [Vrms] 1 Ta=-40oC 0.1 Ta=-40oC 0.1 0.01 0.01 0.0001 0.001 0.01 0.1 1 10 0.001 0.00001 0.0001 Input Voltage [Vrms] 0.01 0.1 10 THD+N vs. Input Voltage V +=9V, f=1kHz, RG1=330Ω, RG2=47kΩ RSENSE =47kΩ, GAIN SW=+20dB, BW=400-30kHz V +=9V, f=1kHz, RG1=330Ω, RG2=47kΩ RSENSE =47kΩ, GAIN SW=0dB, BW=400-30kHz 100 10 Ta=85oC Ta=25oC 1 0.1 Ta=85oC Ta=25oC 1 0.1 Ta=-40oC Ta=-40oC 0.0001 0.001 0.01 0.1 Input Voltage [Vrms] – 10 – 1 THD+N vs. Input Voltage THD+N [%] THD+N [%] 0.001 Input Voltage [Vrms] 10 0.01 0.00001 10 Output Voltage vs. Input Voltage 1 100 1 Input Voltage [Vrms] Ta=25oC 0.001 0.00001 0.1 Input Voltage [Vrms] 1 10 0.01 0.00001 0.0001 0.001 0.01 0.1 1 10 Input Voltage [Vrms] Version 7.0E NJM2783 ! TYPICAL CHARACTERISTICS 100 THD+N vs. Output Voltage THD+N vs. Output Voltage V +=9V, f=1kHz, RG1=330Ω, RG2=47kΩ RSENSE =OPEN, GAIN SW=+20dB, BW=400-30kHz V +=9V, f=1kHz, RG1=330Ω, RG2=47kΩ RSENSE =OPEN, GAIN SW=0dB, BW=400-30kHz 100 10 THD+N [%] THD+N [%] 10 Ta=-40oC 1 Ta=25oC 0.1 Ta=-40oC 1 0.1 Ta=85oC 0.01 0.01 0.1 1 Ta=25oC 10 Ta=85oC 0.01 0.01 0.1 Output Voltage [Vrms] Input Noise Voltage vs. Temperature Control Characteristics Rg=0Ω, RSENSE =OPEN, GAIN SW=+20dB V +=9V, f=1kHz, RG1=330Ω,RG2=47kΩ V IN=0.7Vrms, RSENSE =47kΩ, Ta=25oC -100 2 10 1.5 Output Voltage [Vrms] Equivalent Input Noise Voltage [dBV] 1 Output Voltage [Vrms] -110 V+=2.7V -120 1 0.5 V+=9V V+=13V -130 -50 0 -25 0 25 50 Temperature [ oC] Version 7.0E 75 100 125 0 0.5 1 1.5 2 2.5 3 GAIN SW Input Voltage [V] – 11 – NJM2783 ! TYPICAL CHARACTERISTICS Attack Response (C RECOVER=1uF) Attack Response (CRECOVER=2.2uF) V+=9V, VIN=0.5mVrms to 5mVrms, f=1kHz, Ta=25 oC V+=9V, VIN=0.5mVrms to 5mVrms, f=1kHz, Ta=25 oC 2 TAT T ACK =2msec. (The time to settle to +1dB) 1.5 1.5 1 1 Output Voltage [V] Output Voltage [V] 2 0.5 0 -0.5 0.5 0 -0.5 -1 -1 -1.5 -1.5 -2 TAT T ACK =3msec. (The time to settle to +1dB) -2 -10 0 10 20 30 40 -10 0 Time [msec.] 30 40 Attack Response (CRECOVER=4.7uF) Attack Response (C RECOVER=10uF) V+=9V, VIN=0.5mVrms to 5mVrms, f=1kHz, Ta=25 oC 2 TAT T ACK=4msec. (The time to settle to +1dB) 1.5 1.5 1 1 Output Voltage [V] Output Voltage [V] 20 V+=9V, VIN=0.5mVrms to 5mVrms, f=1kHz, Ta=25 oC 2 0.5 0 -0.5 TAT T ACK=5msec. (The time to settle to +1dB) 0.5 0 -0.5 -1 -1 -1.5 -1.5 -2 -2 -10 0 10 20 Time [msec.] – 12 – 10 Time [msec.] 30 40 -10 0 10 20 30 40 Time [msec.] Version 7.0E NJM2783 ! TYPICAL CHARACTERISTICS Recovery Response (C RECOVER=1uF) Recovery Response (CRECOVER=2.2uF) V+=9V, VIN=1.58mVrms to 0.5mVrms, f=1kHz, Ta=25 oC V+=9V, VIN=1.58mVrms to 0.5mVrms, f=1kHz, Ta=25 oC 1.5 1.5 TRECOVER=0.28sec. (The time to recover to -1dB) 1 Output Voltage [V] Output Voltage [V] 1 TRECOVER=0.63sec. (The time to recover to -1dB) 0.5 0 -0.5 -1 0.5 0 -0.5 -1 -1.5 -0.5 0 0.5 1 1.5 2 -1.5 -0.5 2.5 0 0.5 Time [sec.] 1.5 2 2.5 Recovery Response (CRECOVER=4.7uF) Recovery Response (C RECOVER=10uF) V+=9V, VIN=1.58mVrms to 0.5mVrms, f=1kHz, Ta=25 oC V+=9V, VIN=1.58mVrms to 0.5mVrms, f=1kHz, Ta=25 oC 1.5 1.5 TRECOVER=1.45sec. (The time to recover to -1dB) 0.5 0 -0.5 -1 -1.5 -0.5 TRECOVER=2.93sec. (The time to recover to -1dB) 1 Output Voltage [V] 1 Output Voltage [V] 1 Time [sec.] 0.5 0 -0.5 -1 0 0.5 1 Time [sec.] 1.5 2 2.5 -1.5 -0.5 0 0.5 1 1.5 2 2.5 Time [sec.] [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. Version 7.0E – 13 –