njw1221 New Japan Radio Co.,Ltd, njw1221 Datasheet
njw1221
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njw1221 Summary of contents
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... Electronic Volume with 5 Bands Parametric Equalizer GENERAL DESCRIPTION The NJW1221 is a 4.1-channel electronic volume with input selector. It includes master volume, fader volume, 5 band parametric equalizer, 7-input stereo audio selector, loudness, and sub-woofer function. The NJW1221 performs low noise and low distortion characteristics with resistance ladder circuit ...
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... NJW1221 ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER Power Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range ELECTRICAL CHARACTERISTICS + (Ta=25°C,V =9V, Rg=600Ω, RL=47kΩ, Vin=1.5Vrms, f=1kHz,all controls flat unless otherwise specified) PARAMETER Operating Voltage Supply Current Reference Voltage Maximum Input Voltage ...
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... Vin=0.1Vrms Band4=+15dB, f =6.4kHz C4 f C43 Vin=0.1Vrms Band5=+15dB, f =6.8kHz C5 f C51 Vin=0.1Vrms Band5=+15dB, f =10kHz C5 f C52 Vin=0.1Vrms Band5=+15dB, f =15kHz C5 f C53 Vin=0.1Vrms NJW1221 MIN. TYP. MAX. UNIT 12.5 15.0 17.5 dB -17.5 -15.0 -12.5 dB 12.5 15.0 17.5 dB -17.5 -15.0 -12.5 dB 12.5 15.0 17.5 dB -17.5 -15.0 -12.5 dB 12.5 15.0 17.5 dB -17 ...
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... NJW1221 ♦ Spectrum Analyzer PARAMETER Output Voltage Range Center Frequency 1 Center Frequency 2 Center Frequency 3 Center Frequency 4 Center Frequency 5 Center Frequency 6 Center Frequency 7 Quality Factor ♦ Sub Woofer PARAMETER Maximum Gain Minimum Gain Maximum Input Voltage Maximum Output Voltage Total Harmonic Distortion ...
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... G HP VOLUME=15dB VOLUME=-79dB V3 V =1.5Vrms O THD BW=400-30kHz FADER VOLUME=Mute V NO1 Rg=0Ω, Filter : A-Weighted V Rg=0Ω, Filter : A-Weighted NO2 SYMBOL TEST CONDITION V Rg=0Ω, Filter : A-Weighted NO V THD=1% IM NJW1221 MIN. TYP. MAX. UNIT 2.2 2.4 - Vrms - 0.01 0.05 % -110 dBV - ...
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... NJW1221 BUS CHARACTERISTICS (SDA, SCL BUS Load Conditions: Standard mode : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND) Fast mode : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 50pF (Connected to GND) PARAMETER Low Level Input Voltage High Level Input Voltage ...
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... EQ3Q BCEQ3 EQ4Q BCEQ4 EQ5Q BCEQ5 EQ2FC BSEL FADER FL FADER FR FADER RL FADER RR SUBW VOL HP VOL SSMAIN SSEQ SSFADER SUBW SW BEEP SATEST NJW1221 MSB LSB Data A 8bit 1bit INPUT GAIN LPFORDER LPF EQ1LVL EQ2LVL EQ3LVL EQ4LVL EQ5LVL EQ3FC EQ4FC BEEP VOL ...
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... NJW1221 ♦CONTROL REGISTER DEFAULT VALUE Control register default value is all “0”. Select Address D7 D6 00H 0 01H 0 02H 0 03H 0 04H 0 05H 0 06H 0 07H 0 08H 0 09H 0 0AH 0 0BH 0 0CH 0 0DH 0 0EH 0 0FH 0 10H 0 11H 0 *The control resistor setting may not be above values when power is turned on due to the noise of power supply. ...
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... MAIN VOL BIT HPF PHASE BIT EQ1Q BCEQ1 EQ2Q BCEQ2 EQ3Q BCEQ3 EQ4Q BCEQ4 EQ5Q BCEQ5 BIT EQ2FC BSEL NJW1221 BIT INPUT GAIN LPF LPFORDER EQ1LVL EQ2LVL EQ3LVL EQ4LVL EQ5LVL EQ3FC EQ4FC BEEP VOL – ...
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... NJW1221 f) FADER VOLUME SETTING Select Address D7 D6 0AH * 0BH * 0CH * 0DH * •FADER FL, FADER FR, FADER RL, FADER RR : Fader volume setting 0 to -79 (1dB/step) / Mute g) SUB WOOFER VOLUME SETTING Select Address D7 D6 0EH EQTEST •EQ TEST* : “0” : Normal operation “1” : Test mode *For device check use only. Set {D7}={0} in usual. ...
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... Default Value INPUT GAIN Default Value NJW1221 – 11 – ...
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... NJW1221 MAIN VOLUME (Select Address : 01H) Gain (dB) HEX +23.5 FE +23 FD +22.5 FC +22 FB +21.5 FA +21 F9 +20.5 F8 +20 F7 + -75 39 -75.5 38 -76 37 -76.5 36 -77 35 -77.5 34 -78 33 -78.5 32 -79 31 -79.5 30 Mute* 00 – 12 – MAIN VOL ...
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... LOW PASS FILTER (Select Address : 02H) PHASE Phase D3 0 degrees* 0 180 degrees 1 *: Default Value LPFORDER LPF Order Setting D2 2nd Order* 0 4th Order 1 *: Default Value LPF Cut Off Frequency D1 Flat 120 Default Value NJW1221 – 13 – ...
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... NJW1221 EQUALIZER QUALITY FACTOR (Select Address : 03H, 04H, 05H, 06H, 07H) Quality Factor D1 0.7* 0 1.0 0 1 Default Value EQUALIZER BOOST/CUT LEVEL (Select Address : 03H, 04H, 05H, 06H, 07H) Equalizer Cut or Boost Cut* Boost Cut Gain(dB) Boost Gain(dB) -15 -14 -13 -12 -11 - ...
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... Default Value EQ4FC Equalizer Band 4 Center Frequency D1 2.1kHz* 0 3.2kHz 0 4.6kHz 1 *: Default Value EQUALIZER BAND 5 CENTER FREQUENCY (Select Address : 09H) EQ5FC Equalizer Band 5 Center Frequency D7 6.8kHz* 0 10kHz 0 15kHz 1 *: Default Value NJW1221 – 15 – ...
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... NJW1221 BEEP SOURCE SELECTOR(Select Address : 09H)] Beep Source External* Internal *: Default Value BEEP VOLUME (Select Address : 09H) Gain(dB) HEX - -52 05 -54 04 -56 03 -58 02 -60 01 Mute* 00 FADER VOLUME (Select Address : 0AH, 0BH, 0CH, 0DH) Gain(dB) HEX ...
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... NJW1221 ...
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... NJW1221 HEADPHONE VOLUME (Select Address : 0FH) Gain (dB) HEX +15.5 FE +15 FD +14.5 FC +14 FB +13.5 FA +13 F9 +12.5 F8 +12 F7 + -75 49 -75.5 48 -76 47 -76.5 46 -77 45 -77.5 44 -78 43 -78.5 42 -79 41 -79.5 40 Mute* 00 – 18 – ...
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... EQUALIZER SOFT STEP (Select Address : 10H) SSEQ Soft Step Setting D4 OFF Default Value FADER SOFT STEP (Select Address : 10H) SSFADER Soft Step Setting D3 OFF Default Value SUB WOOFER SOFT STEP (Select Address : 10H) SSSW Soft Step Setting D2 OFF Default Value NJW1221 – 19 – ...
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... NJW1221 SOFT STEP TIME (Select Address : 10H) Soft Step Time 10msec* 20msec 50msec 100msec SPECTRUM ANALYZER RESET (Select Address : 11H) SA RST Reset OFF Default Value SPECTRUM ANALYZER DETECT POINT (Select Address : 11H) SA DET Detect Point Before Main VR* Before Fader VR* *: Default Value ...
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... NJW1221 [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. – ...