NJW1148 New Japan Radio, NJW1148 Datasheet
NJW1148
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NJW1148 Summary of contents
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... Audio Processor with Sound Enhancement and TruSurround Virtualizer GENERAL DESCRIPTION The NJW1148 is an audio processor with BBE sound enhancement and SRS Labs' TruSurround virtualizer. It includes all of functions processing audio signal for TV, such as volume, balance, mute, line out, tone control, eala NJRC surround and simulated stereo functions. All of ...
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... NJW1148 PIN FUNCTION 39 48 No. SYMBOL 1 TS3 TruSurround Filter Capacitor 3 2 INA Ach Input Ach BBE High-Pass Filter Capacitor 3 BBECHA 4 BBECLA Ach BBE Low-Pass Filter Capacitor 5 TONECHA Ach TONE Treble Filter Capacitor Ach TONE Bass Filter Capacitor 6 TONECLA 7 LINEOUTA ...
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... BW = 400Hz to 30kHz + =9V, R =47kΩ, Vin=100mVrms/1kHz L SYMBOL TEST CONDITION G TREB=+15dB, f=10kHz HFBST G TREB=0dB,f=10kHz HFFLT G TRBE=-15dB, f=10kHz HFCUT G BASS=+15dB, f=100Hz LFBST G BASS=0dB, f=100Hz LFFLT G BASS=-15dB, f=100Hz LFCUT NJW1148 RATING UNIT 12 ) MIN. TYP. MAX. UNIT 8.0 9.0 10 4.0 4.5 5.0 2.8 3.0 - Vrms - 2.5 - Vrms -1 ...
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... NJW1148 AGC CHARACTERISTICS (Ta=25°C, V MODE ; VOL=0dB, BAL=0dB, SUR=OFF, AGC=ON, BBE=OFF, Tone=0dB) PARAMETER AGC Boost AGC Flat 1 AGC Flat 2 AGC Flat 3 AGC Flat 4 AGC Cut BBE CHARACTERISTICS (Ta=25°C, V MODE ; VOL=0dB, BAL=0dB, SUR=OFF, AGC=OFF, Tone=0dB) PARAMETER Low Boost Gain High Boost Gain eala CHARACTERISTICS (Ta=25° ...
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... Capacitive load for each bus line Noise margin at the LOW level Noise margin at the HIGH level SDA SCL t HD:STA t LOW S DataSheet4U.com PARAMETER to V with ILmax DD DataSheet4U.com SU:DAT t SU:STA t t HD:DAT HIGH Sr NJW1148 SYMBOL MIN. TYP. MAX. V 0 3 hys 0 250 20+0. ...
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... The constant of capacitors connected to the terminals No. and 36 are designated by BBE Sound Inc. 3. The constant of capacitors connected to the terminals No. DataSheet4U.com – 6 – 4.7nF TS3 2 INA 3 BBECHA 4 BBECLA 5 TONECHA 6 TONECLA NJW1148 7 LINEOUTA 8 OUTA 9 OUTC DataSheet4U.com 10 N.C. 11 AGCTC 12 SURTC 13 VOLATC 14 VOLBTC VOLCTC ...
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... LPF cut off frequency and quality factor are adjusted by the external parts and given by the following functions π DataSheet4U.com LFIN MIXOUT C2 1 (Hz) ⋅ ⋅ ⋅ DataSheet4U.com NJW1148 C1 28 LFOUT ⋅ ⋅ ⋅ ⋅ ...
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... NJW1148 TERMINAL DESCRIPTION PIN SYMBOL NO. 1 TS3 TruSurround Filter Capacitor 3 47 TS1 TruSurround Filter Capacitor 1 48 TS2 TruSurround Filter Capacitor 2 2 INA Ach Input 37 INB Bch Input 3 BBECHA Ach BBE High-Pass Filter Capacitor 36 BBECHB Bch BBE High-Pass Filter Capacitor ...
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... Buffer Output for LPF 30 MIXOUT Ach Bch Mixed Output 31 OUTB Bch Output 32 LINEOUTB Bch Line Output 11 AGCTC AGC Smoothing Filter Capacitor 12 SURTC Surround Switching Noise Rejection Capacitor DataSheet4U.com FUNCTION EQUIVALENT CIRCUIT DataSheet4U.com NJW1148 TERMINAL 6,34 12k 12k 7,8,9,28,30,31,32 50 12k 400 400 11 12 36k VOLTAGE V+/2 V+/2 1.4V - – 9 – ...
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... NJW1148 PIN SYMBOL NO. 13 VOLATC A ch Volume Switching Noise Rejection Capacitor 14 VOLBTC B ch Volume Switching Noise Rejection Capacitor 15 VOLCTC Center ch Volume Switching Noise Rejection Capacitor 2 16 SDA I C Data Input 2 17 SCL I C Clock Input 18 GND Ground 20 V+ Power Supply DataSheet4U.com – ...
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... TONELTC Tone Control Bass Switching Noise Rejection Capacitor 24 OUTTC Line Output switching Noise Rejection Capacitor 25 BBELTC BBE Low Switching Noise Rejection Capacitor DataSheet4U.com FUNCTION EQUIVALENT CIRCUIT DataSheet4U.com NJW1148 TERMINAL VOLTAGE 21 Vref-0.7V 22,23 (Tone=FLAT) 36k 36k 24 (OUT-ON) 36k Vref-0.7V 25 (BBE=ON) (Low=0dB) – 11 – V+/2 ...
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... NJW1148 PIN SYMBOL NO. 26 BBEHTC BBE High Switching Noise Rejection Capacitor 29 LFIN Buffer Output for LPF 46 CEALA eala Filter Capacitor 38 SRS4 SRS Filter Capacitor 4 39 SRS3 SRS Filter Capacitor 3 40 SRS2 SRS Filter Capacitor 2 41 SRS1 SRS Filter Capacitor 1 DataSheet4U.com – ...
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... PIN SYMBOL NO. 42 SPACE1 SPACE Volume1 43 CENTER CENTER Volume 45 SPACE2 SPACE Volume2 DataSheet4U.com FUNCTION EQUIVALENT CIRCUIT 42,43,45 DataSheet4U.com NJW1148 TERMINAL VOLTAGE V+/2 – 13 – ...
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... NJW1148 DEFINITION REGISTER BUS FORMAT MSB S Slave Address 1bit 8bit S: Starting Term A: Acknowledge Bit P: Ending Term SLAVE ADDRESS MSB CONTROL REGISTER TABLE The select address sets each function (Volume, Balance, AGC, Surround, BBE, Tone Control). ...
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... D6 D5 VOL BIT BAL BIT BASS DataSheet4U.com BIT TREB BIT BBEL NJW1148 Don’t Care Don’t Care Don’t Care BBE Don’t Care – 15 – ...
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... NJW1148 g) BBE-High Select Address D7 05H •BBEH: BBE-HIGH Level 0dB to 15dB (0.5dB/step) • • • • AGC : AGC ON or OFF • • • • AGC LVL : AGC Level 300mVrms, 400mVrms, 500mVrms, 600mVrms h) Surround (eala, TruSurround) Select Address D7 06H 2 / 2.1ch • • • • 2.1ch : Surround Output Mode 2ch (TruSurround), 2.1ch (Center out) • ...
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... NJW1148 VOL ...
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... NJW1148 Gain(dB) HEX -43 7E -44 7B -45 78 -46 75 -47 72 -48 6F -49 6C -50 69 -51 66 -52 63 -53 60 -54 5D -55 5A -56 57 -57 54 -58 51 -59 4E -60 4B -61 48 -62 45 -63 42 -64 3F -65 3C -66 39 -67 36 -68 33 -69 30 -70 2D -71 2A -72 27 -73 24 -74 21 -75 1E -76 1B -77 18 -78 15 -79 12 ...
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... NJW1148 – 19 – ...
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... NJW1148 Tone Control Bass (Select Address: 02H) Bass Cut or Boost Cut Boost Cut Gain(dB) Boost Gain(dB) -15 -14 -13 -12 -11 - Tone Control Treble (Select Address: 03H) Treble Cut or Boost Cut Boost Cut Gain(dB) ...
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... NJW1148 – 21 – ...
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... NJW1148 AGC (Select Address: 05H) AGC ON/OFF OFF AGC Level (Select Address: 05H) AGC Level 300mVrms 400mVrms 500mVrms 600mVrms 2 / 2.1ch (Select Address: 06H 2.1ch 2ch 2.1ch Surround Mode (Select Address: 06H) SUR OFF MONO SRS 3D TS ...
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... DataSheet4U.com Ta=25°C Ta=75°C Ta=-20°C Pow er Supply Voltage [V] DataSheet4U.com Ta=-20°C Pow er Supply Voltage [V] Ta=-20°C, 25°C, 75°C 75 100 125 150 175 200 225 250 Volume Control [dec] NJW1148 Operating Current vs. Ambient Temperature V+=9V, R =47kΩ, VOL=0dB, BAL=0dB, AGC=OFF, L BASS=TREB=0dB, BBE=OFF, Surround=OFF -50 ...
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... NJW1148 TYPICAL CHARACTERISTICS Total Harmonic Distortion vs. Input Voltage V+=9V, R =47kΩ, Vin(Ach), f =1kHz, BW=400Hz-30kHz, VOL=-20dB, L BAL=0dB, AGC=OFF, BASS=TREB=0dB, BBE=OFF, Surround=OFF 100 10 1 0.1 0.01 0.01 Total Harmonic Distortion vs. Output Voltage V+=9V, R =47kΩ, Vin(Ach), f =1kHz, BW=400Hz-30kHz, VOL=0dB, L BAL=0dB, AGC=OFF, BASS=TREB=0dB, BBE=OFF, Surround=OFF ...
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... Frequency [kHz] =47kΩ, BAL=0dB, AGC=OFF, L DataSheet4U.com VOL=0dB VOL=MUTE 100 125 Frequency [°C] AGC=OFF 0.01 0 Input Voltage [Vrms] NJW1148 Output Noise Voltage (OUT) vs. Frequency V+=9V, R =47kΩ, BAL=0dB, AGC=OFF, L BASS=TREB=0dB, BBE=OFF, Surround=OFF 0 -20 -40 -60 VOL=0dB -80 -100 VOL=MUTE -120 -50 - ...
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... NJW1148 TYPICAL CHARACTERISTICS AGC Recovery Time Response Ta=25°C, V+=9V, R =47kΩ, Vin(A+Bch), f=10kHz, Vout(Ach), BW=400Hz-30kHz, L VOL=0dB, BAL=0dB, AGC=300mV, BASS=TREB=0dB, BBE=OFF, Surround=OFF 0.2 0.15 0.1 0.05 0 -0.05 -0.1 -0.15 -0 100 150 200 250 300 350 400 450 500 550 600 Voltage Gain vs. Frequency (TONE) Ta=25°C, V+=9V, R ...
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... DataSheet4U.com 0 100 Frequency [kHz] Ta=-20, 25, 75°C DataSheet4U.com 0 100 Frequency [kHz] 0 100 Frequency [kHz] NJW1148 Phase vs. Frequency (MONO) V+=9V, R =47kΩ, Vin(A+Bch)=0.1Vrms, VOL=0dB, L BAL=0dB, BASS=TREB=0dB, AGC=OFF, BBE=OFF, Surround=MONO 180 135 90 Vout(Bch -45 Ta=-20, 25, 75°C -90 Vout(Ach) -135 -180 -225 ...
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... NJW1148 TYPICAL CHARACTERISTICS Voltage Gain vs. Frequency (3D) Ta=25°C, V+=9V, R =47kΩ, Vin=0.1Vrms, VOL=0dB, BAL=0dB, BASS=TREB=0dB, L AGC=OFF, BBE=OFF, Surround= Space=max, Center=max, Ain ¡ Aout 5 Ta=-20, 25, 75° -10 Space=min, Center=max Bin ¡ Aout -15 -20 Space=min, Center=min Ain ¡ Aout, Ta= -20, 25, 75°C ...
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... The TruSurround technology right incorporated in the NJW1148 are owned by SRS Labs, a U.S. Corporation and licensed to New Japan Radio Co., Ltd. Purchaser of NJW1148 must sign a license for use of the chip and display of the SRS Labs trademarks. Any products incorporating the NJW1148 must be sent to SRS Labs for review. TruSurround is protected under U.S. and foreign patents issued and/or pending ...