njw1142a New Japan Radio Co.,Ltd, njw1142a Datasheet
njw1142a
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njw1142a Summary of contents
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... GENERAL DESCRIPTION The NJW1142A is a sound processor includes all of the functions required to process the audio signal for TV, such as tone control, balance, volume, mute, and AGC functions. Also the NJW1142A performs NJRC Surround "eala" which is regenerated 3D surround sound with only two speakers. ...
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... NJW1142A ! PIN CONFIGURATION No. Symbol 1 IN1a Ach Input 1 2 IN2a Ach Input 2 3 IN3a Ach Input 3 4 IN4a Ach Input 4 5 MONa Ach Monitor Output 6 SR FIL Surround Filter 7 TONE-Ha Ach Treble Filter 8 TONE-La Ach Bass Filter 9 LINEa Ach LINE Output (+4.5dB) ...
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... BW=400Hz to 30kHz Vo=0.5Vrms THD BW=400Hz to 30kHz Vin=1Vrms CT BW=400Hz to 30kHz Vin=1Vrms CS BW=400Hz to 30kHz VOL=0dB V NO1 BW=400Hz to 30kHz VOL=Mute V NO2 BW=400Hz to 30kHz LINEOUT, VOL=0dB V NO3 BW=400Hz to 30kHz LINEOUT, VOL=Mute V NO4 BW=400Hz to 30kHz NJW1142A RATING 12 800 -20 to +75 -40 to +125 =47k , Vin=100mVrms/1kHz) L MIN. TYP. MAX. 8.0 9.0 10.0 - 10.0 25.0 4.0 4.5 5.0 2 ...
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... NJW1142A ELECTRICAL CHARACTERISTICS ( Ta= hTONE CONTROL (Tone Control-ON) PARAMETER High Frequency Boost High Frequency Flat High Frequency Cut Low Frequency Boost Low Frequency Flat Low Frequency Cut hAGC (AGC-ON) PARAMETER AGC BOOST AGC FLAT 1 AGC FLAT 2 AGC FLAT 3 AGC FLAT 4 AGC CUT ...
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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 NJW1142A HD:STA SU:STO Standard mode Fast mode MIN. TYP. MAX. MIN. TYP. 0.0 - 1.5 0.0 - 2.7 - 5.0 2.7 - ...
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... HD:DAT Please hold the Data Hold Time (t The SDA block in the NJW1142A 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 Input 1 Ach Input 2 Ach Input 3 Ach Input 4 Bch Input 4 Bch Input 3 Bch Input 2 Bch Input 1 Surround Filter Ach Treble Filter Bch Treble Filter Ach Bass Filter Bch Bass Filter NJW1142A EQUIVALENT CIRCUIT 20k 80k 8k:eala 24k:simlated SR FIL TONE Ha TONE Hb FB ...
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... NJW1142A ! TERMINAL DESCRIPTION No. SYMBOL 22 AGC Pop Noise Reduction for Ach 11 CVa 12 CVb Pop Noise Reduction for Bch 13 SDA SDA Data Input (I 14 SCL SCL Clock Input (I 15 GND 18 V+ Power Supply Terminal 19 Vref - 8 - FUNCTION AGC Filter Volume & Balance Volume & Balance ...
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... TERMINAL DESCRIPTION No. SYMBOL Pop Noise reduction 20 CTL Pop Noise reduction 21 CTH for Treble Control Pop Noise Reduction 27 CSR for Surround Control FUNCTION for Bass Control CSR NJW1142A EQUIVALENT CIRCUIT 36k 32k VOLTAGE V+/2 - 0.7V 0. ...
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... NJW1142A ! APPLICATION CIRCUIT 0 0 0 22nF 2.2nF 100nF 4 4 (NOTE Separate the I C bus line from the following terminals for avoiding digital noise problem. Pin No. Symbol Pin No FIL 8 7 TONE- IN1a IN1b 2 IN2a IN2b 3 IN3a IN3b ...
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... BIT VOL BAL BASS TREB Don’t Care SEL AGC1 BIT NJW1142A MSB LSB Data A 8bit 1bit LSB 1 R SUR1 BCSB SUB-BASS BCST SUB-TREB AGC0 AGC ...
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... NJW1142A CONTROL COMMAND DESCRIPTION hMASTER VOLUME CONTROL Select Address D7 D6 00H The volume control for both Ach and Bch (0.33dB/step). The volume is consisted of volume1 and volume2 and the level is divided into half to each volume1 and volume2. hBALANCE, AGC AND SURROUND SETTING ...
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... AGC Off Don’t Care BIT TREB BIT SEL AGC1 SEL AGC1 AGC0 AGC (D3) (D2) (D1 NJW1142A BCST SUB-TREB AGC0 AGC Don’t Care - 13 - ...
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... NJW1142A !MASTER VOLUME (Select Address: 00H) Gain (dB) HEX - - - - - - - - - - - -21 C0 ...
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... NJW1142A ...
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... NJW1142A ! ! ! ! BALANCE (Select Address: 01H) Channel Select (CHS) Ach (Bch is attenuated) Bch (Ach is attenuated) Gain (dB -10 0 -11 0 -12 0 -13 0 -14 0 -15 0 -16 1 -17 1 -18 1 -19 1 -20 1 -21 1 -22 1 -23 1 -24 1 -25 ...
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... BCSB SUB-BASS NJW1142A ...
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... NJW1142A ! TONE CONTROL TREBLE (Select Address: 03H) Treble Cut or Boost Cut Boost Cut Gain Boost Gain (dB) (dB) -15 15 -14 14 -13 13 -12 12 - TONE CONTROL SUB-TREBLE (Select Address: 03H) Sub-Treble Cut or Boost ...
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... Volume Control [dB -100 MUTE -60 -70 - -100 -120 MUTE -60 -70 -80 NJW1142A Supply Current vs T emparature V+= 100 o Temparature [ C] G ain vs Balance Control V +=9V, Vin=1V rms, f=1k Hz, R g=600 0 -20 -40 Vo(Bch ) Vo(Ach ) o ...
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... NJW1142A ! TYPICAL CHARACTERISTICS THD+N vs Input Voltage V+=9V, Vin(Ach), f=1kHz, Vo(Ach)OUTPUT Rg=600 BW=400Hz-30kHz, Ta=25 100 10 -30dB 1 0.1 -20dB -10dB 0.01 0.01 0.1 Input Voltage [Vrms] THD+N vs Output Voltage V+=9V, Vin(Ach), f=1kHz, Vo(Ach)OUTPUT BW=400Hz-30kHz, Rg=600 , Ta=25 100 10 -30dB 1 0.1 -20dB 0.01 0.01 0.1 Output Voltage [Vrms] MUT E Level vs Frequency V+=9V, Vin(Ach)=1Vrms, Vol=MUTE Vo(Ach)O U TPUT, Rg=600 , Ta=25 ...
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... V+=9V, Vin(Ach+Bch), f=1kH z, Vo (Ach)OU TPU T Rg=600 , Ta= 0.1 0.01 0.001 4 10 V+=9V, Vin(Ac h+B ch)=1 Vrm s, f=10kH z,Vo (Ach)OUTPUT level= 0.3V,R g=600 ,Ta=25 0.2 0.1 -0.1 -0 -100 4 10 NJW1142A ontrol 300m V OFF 0.001 0.01 0.1 1 Input Voltage [Vrms] AGC Recovery T ime (C:20pin =0. 100 200 300 400 Time [ms] Phase vs Frequency (Simulated) V+=9V, Vin(A+Bch)=0 ...
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... NJW1142A - 22 - [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 ...