njw1143a New Japan Radio Co.,Ltd, njw1143a Datasheet
njw1143a
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njw1143a Summary of contents
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... GENERAL DESCRIPTION The NJW1143A is an audio processor which includes volume, balance, tone control, surround, simulated stereo and AGC function. Also the NJW1143A features high precision characteristics about channel balance less than ±1.0dB at –70dB attenuation. All of internal status and variables are controlled by I Selectable 4-slave address is applicable to multi-speaker system ...
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... NJW1143A PIN CONFIGURATION Ach Input No Connect Ach Output No Connect Ach Treble Filter Ach Bass Filter AGC Filter Pop Noise Reduction for Surround ON/OFF Control Pop Noise Reduction for Volume Control Slave Address Select Slave Address Select 1 2 SDA Serial Data Input (I ...
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... Vin = 1Vrms Vo=0.5Vrms THD BW=400Hz to 30kHz G VOL= 0dB VMAX G VOL= MUTE, Vin=2Vrms VMIN Vin = 1Vrms CS A-weighting VOL = 0dB V NO1 A-weighting VOL = MUTE V NO2 A-weighting Logic Output: High V AUX Logic Output: Low NJW1143A RATING 15 800 -20 to +75 -40 to +125 =47k , Vin=100mVrms/1kHz, L MIN. TYP. MAX. 8.0 9.0 13.0 - 13.0 25.0 4.0 4.5 5.0 2 ...
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... NJW1143A ELECTRICAL CHARACTERISTICS TONE CONTROL PARAMETER High Frequency Boost High Frequency Flat High Frequency Cut Low Frequency Boost Low Frequency Flat Low Frequency Cut AGC CONTROL (AGC-ON) PARAMETER AGC Boost AGC Flat1 AGC Flat2 AGC Flat3 AGC Flat4 AGC Cut SURROUND (SURROUND-ON) ...
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... Input current each I/O pin with an input voltage between 0.1V and 0.9V DD DDmax SU:DAT t SU:STA t HIGH BUS (SDA,SCL) (Connected to +5V), Load capacitance 50pF (Connected to GND) SYMBOL NJW1143A HD:STA SP t SU:STO Standard mode Fast mode MIN. TYP. MAX. MIN. TYP. 0.0 - 1.5 0.0 2.7 - 5.0 2 ...
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... HD:DAT Please hold the Data Hold Time (t The SDA block in the NJW1143A does not hold data. Add external data-delay-circuit of the SDA terminal, in case of not providing a hold time of at least 300nsec for the SDA in the master device. The time-consists of the data-delay-circuit of the SDA terminal are as follows. ...
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... Ach Treble Filter terminal 28 TONE-Hb Bch Treble Filter terminal 6 TONE-La Ach Bass Filter terminal 27 TONE-Lb Bch Bass Filter terminal Capacitor connection terminal for 7 AGC AGC attack and recovery time setting FUNCTION FB NJW1143A EQUIVALENT CIRCUIT 100k REF 50 32k 32k 12k FB 12k 12k 400 400 VOLTAGE + V ...
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... NJW1143A ! TERMINAL DESCRIPTION No. SYMBOL Pop Noise Reduction for 8 CSR Surround ON/OFF Control 9 CVO 2 10 ADR0 I C Slave Address Select ADR1 I C Slave Address Select 1 12 SDA SDA Serial Data Input (I 14 SCL SDA Serial Clock Input (I 16 GND 17 V+ Power Supply terminal ...
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... Auxiliary 2 values voltage 22 AUX1 Output terminal 1 Pop Noise Reduction 23 CTH for Bass Control Pop Noise Reduction 24 CTL for Treble Control Pop Noise Reduction 25 CBA for Balance Control 26 SRFIL Surround filter terminal NJW1143A EQUIVALENT CIRCUIT 200k 50 36k 12k FB 4k VOLTAGE + ...
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... NJW1143A APPLICATION CIRCUIT 0 2.2nF 100nF 3.9k 3.9k 2 (NOTE) Separate the I C bus line from the following terminals for avoiding digital noise problem. Pin No. Symbol Pin No. 5 TONE-Ha 6 TONE- INa OUTa 4 NC TONE-Ha TONE- TONE-La TONE-Lb AGC 7 SR FIL ...
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... ADR1 ADR0 Address 80H 82H 84H 86H BIT VOL BAL BASS TREB BIT NJW1143A LSB Data A 8bit 1bit 1bit LSB R SUR AGC-SW AGC-FLAT Don’t Care AUX1 ...
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... NJW1143A CONTROL COMMAND DESCRIPTION MASTER VOLUME CONTROL Select Address D7 D6 00H The volume controls both Ach and Bch by the 0.5dB step. The volume is consisted of volume1 and volume2. The level is divided into half to each volume1 and volume2. BALANCE, AGC AND INPUT SELECTOR SETTINGS ...
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... Cut “1” : Boost TREB : Treble Level Cut Level : -15 to 0dB(1dB/Step) Boost Level : 0 to +15dB(1dB/Step) AUX1/AUX0: Auxiliary port High/Low “0”: Logic output ”Low” “1”: Logic output ”High” BIT TREB Don't Care NJW1143A AUX1 AUX0 - 13 - ...
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... NJW1143A Master Volume (Select Address: 00H) Gain(dB) HEX - - - - - - - - - - - -21 D5 ...
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... NJW1143A ...
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... NJW1143A Balance (Select Address: 01H) Channel Setting Attenuated Bch Gain Attenuated Ach Gain Gain(dB -10 0 -11 0 -12 0 -13 0 -14 0 -15 1 -16 1 -17 1 -18 1 -19 1 -20 1 -21 1 -22 1 -23 1 -24 1 -25 1 -26 ...
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... NJW1143A [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 ...