NJM2761RB2. Audio Limiter
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- Angel McBride
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1 NJM76 Audio Limiter GENERAL DESCRIPTION The NJM76 is the audio limiter for speaker protection. The limit level is adjustable by external resistor. It is suitable for PC, potable audio and others. PACKAGE OUTLINE NJM76RB NJM76V FEATURES Wide Operating Voltage Variable Limit Level by external resistor Low Output Noise Bipolar Technology Package Outline +.7V to +.0V 0. tov -90dBV max. TVSP0, SSOP4 BLOCK DIAGRAM Vcc Vref SW INT SENSE Ver.0.5E - -
2 NJM76 PIN CONFIGURATION TVSP V INT 5. VREF 6. SENCE 7. SW GND SSOP V INT 5. VREF 6. NC 7. NC 8. NC 9. NC 0. SENCE. SW.. 4. GND - -
3 NJM76 ABSOLUTE MAXIMUM RATING (Ta=5 C) PARAMETER SYMBOL RATINGS UNIT Supply Voltage V + 4 V Power Dissipation P D 0(TVSP0) 00(SSOP4) Operating Temperature Range T opr -0 to +75 C Storage Temperature Range T stg -40 to +5 C mw ELECTRICAL CHARACTERISTICS POWER SUPPLY (Ta=5 C, V + =5V unless otherwise specified) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Operating Voltage V V Operating Current I CC No Signal ma Reference Voltage Vref No Signal..5.7 V AC CHARACTERISTICS (Ta=5 C, V + =5V, V IN =Vrms/f=kHz, Rsense=0k, BW=400-0kHz unless otherwise specified) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Limit Level G LIM mvrms Limit Level G LIM V + =V,Rsense=4k,V IN=Vrms Vrms Limit Off G OFF SW=V Vrms Output Noise V NO R S=0, A-weighting, (0) -90 (.6) Total Harmonic Distortion THD+N - - % Cross Talk CT db Ripple Rejection RR V ripple=00mvrms, f=khz - - CONTROL CHARACTERISTICS (Ta=5 C, V + =5V unless otherwise specified) -70 (6) dbv ( Vrms) dbv ( Vrms) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Low Level Input Voltage V IL V High Level Input Voltage V IH V CONTROL TERMINAL EXPLANATION SW(TVSP0:7pin, SSOP4:pin) MODE STATUS NOTE Limiter ON L Limiter is active. Limiter OFF H Limiter is not active. - -
4 NJM76 TERMINAL DESCRIPTION No, TVSP0(SSOP4) SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE V+ Power Supply Terminal - 9() Ach Output Terminal Bch Output Terminal 00 V+/ k 8() Ach Input Terminal Bch Input Terminal 96k V+/ 48k 4 INT Smoothing Capacitor Connection Terminal INT V 00k 5 VREFIN Reference Voltage Stabilizing Capacitor Connection Terminal VREFIN 00k V+/ 00k - 4 -
5 NJM76 TERMINAL DESCRIPTION No. TVSP0(SSOP4) SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE k 6(0) SENSE Resister Connection Terminal for Limit Level Setting SENSE 0V 7() SW Limiter ON/OFF Switch - SW 50k 70k 0(4) GND Ground Terminal
6 NJM76 APPLICATION CIRCUIT TVSP0 V+ 0.μF V+ GND 0 μf 9 μf 0.μF 8 0.μF 0.0μF 4 INT SW 7 0.μF 5 VREF SENSE 6 R SENSE SSOP4 V + 0.uF V+ GND 4 uf uf 0.uF 0.uF 0.0uF 4 INT SW 0.uF 5 VREF SENSE 0 R SENSE 6 NC NC 9 7 NC NC 8 * The limit level is twice as much as set point when a signal is input into a either one channel of Ach or Bch. * For the above reason, monaural signal should input both and. R SENSE =4000/Vlim[Ohm] Vlim: Limit level(vrms) Limit range: 00mVrms to Vrms (0k to 4kOhm) * Please be careful of leakage current from the surrounding wiring because the INT terminal is high impedance
7 NJM76 TYPICAL CHARACTERISTICS V + - Icc V + =5V,No-Signal,Limiter=ON,Rsense=0k Icc-Temperature V + =5V,No-Signal,Limiter=ON,Rsense=0k.5.5 Icc[mA] Icc[mA] Vcc[V] Limit Response-Rsense V + =5V,f=kHz,Limiter=ON Temperature [C o ] Limit Response-V + Vin=0dBV,Limiter=ON,Rsense=0k Rsense=4k V + =5.0V Output [Vrms] 0. Rsense=8k Rsense=0k Output[Vrms] 0. V + =.7V V + =.0V Limit Response-Temperature V + =5V,Vin=0dBV,Limiter=ON,Rsense=0k 0 Vom f=khz,limiter=off,rsense=0k V + =.7V Output [Vrms] 0. -0C o 5C o 75C o THD[%] 0. V + =5.0V V + =.0V
8 NJM76 TYPICAL CHARACTERISTICS 0 THD-Vcc f=khz,limiter=on,rsense=0k 0 THD-Temperature V + =5V,Vin=0dBV,Limiter=ON,Rsense=0k V + =.7V V + =5.0V THD[%] V + =.0V THD[%] -0C o C o 5C o Cross Talk V + =5V,Vin=0dBV,Limiter=ON,Rsense=0k 0 Ripple Rejection V + =5V,Vripple=00mVrms,Limiter=ON Cross Talk[dB] C o 75C o Ripple[dBV] C o 5C o C o C o Frequency[Hz] Frequency[Hz] [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
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Channels Electronic olume GENERAL DESCRIPTION The NJU73 is a channels I C electronic volume IC with external mute controls. PACKAGE OUTLINE The NJU73 has many characteristics that are useful in audio application,
NJM2295A FM IF IC FOR REMOTE KEYLESS ENTRY SYSTEM
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NJM4558C DUAL OPERATIONAL AMPLIFIER V + OUTPUT -INPUT +INPUT V -
NJM48C DUAL OPERATIONAL AMPLIFIER GENERAL DESCRIPTION The NJM48C integrated circuit is a dual high-gain operational amplifier internally compensated and constructed on a single silicon chip. Combining
NJM A High Power DC/DC Converter Controller IC
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NJM2166 NJM2166V NJM2166R MONAURAL AUDIO POWER AMPLIFIER IC
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NJM2856 LOW DROPOUT VOLTAGE REGULATOR
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TA8254BHQ TA8254BHQ. Max Power 45 W BTL 2 ch Audio Power IC. Features TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
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WAS4723Q WAS4723Q. Order information 1 2 VCC NO1. Low On Resistance, Dual SPDT Analog Switch. Http//: QFN L
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HIGH SPEED SINGLE SUPPLY OPERATIONAL AMPLIFIER V + B OUTPUT B -INPUT B +INPUT SOP8 SSOP8 MSOP8(VSP8) SOP14 SSOP14
HIGH SPEED SINGLE SUPPLY OPERATIONAL AMPLIFIER FEATURES High Slew Rate 10V/µs High Bandwidth 3MHz High Unity Gain Frequency 3.6MHz Input Offset Voltage 5.5mV max. Single Supply 3V to 36V Operating Temperature
Maintenance/ Discontinued
ICs for TV AN723 3-W BTL audio power amplifier Overview The AN723 is an audio power amplifier IC of -ch. output. In the BTL (balanced transformerless) method, fewer external parts and easier design for
AN W 2 (18 V, 8 Ω) Power Amplifier with Mute Function and Volume Control. ICs for Audio Common Use. Overview. Features.
. W 2 (8 V, 8 Ω) Power Amplifier with Mute Function and Volume Control Overview The is a monolithic integrated circuit designed for. W (8 V, 8 Ω) output audio power amplifier. It is a dual channel SEPP