CXA2021 Sony Corporation, CXA2021 Datasheet
CXA2021
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CXA2021 Summary of contents
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... I C BUS Sound Processor for TV Description The CXA2021S is a bipolar IC developed BUS control sound processor for TV. This IC implements surround, tone control, balance, volume, mute and AGC functions. Features 2 • BUS control • The AGC circuit is adopted to absorb volume differences between input sources and improve the S/N ratio in hearing ...
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... Surround 1 – SCR – (L – SCR 1 – SCR – SCR 19 20 TONE VCA BASS VOL TRE BAL TONE VCA DAC BASS TRE BAL VOL CXA2021S R = 18K LOUT 14 ROUT 9 BUS DEC 12 11 SDA SCL ...
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... Vcc 40k 20k 75µ – 3 – CXA2021S (Ta = 25° 12V) CC Description Vcc Input pins. GND pin. Vcc Pins for connecting external LPF capacitance (BASS). Vcc 2 Vcc Pins for connecting external HPF capacitance (TREBLE). DAC output pins. ...
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... CXA2021S Description Vcc Output pins. Vcc 10k AGC detector output and control pin. Vcc 100µ bus clock line. Vcc 100µ bus data line. ...
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... Vcc 2 16k 16k – 5 – CXA2021S Description Vcc AGC detector output. Connect capacitance for setting time constant. Vcc Pin for connecting external capacitance of the surround phase shifter. Internal impedance is approximately 18kΩ. Vcc AGC HPF output pin. ...
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... Pin No. Symbol Voltage 18 VRS 12V CC Equivalent circuit 16k 16k 30k 1k 18 30k 30µ – 6 – CXA2021S Description Vcc V CC reference voltage pin. 2 Power supply pin. ...
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... BALANCE: Balance control for L channel and R channel channel minimum, R channel maximum 20 = Typical channel maximum, R channel minimum SLAVE ADDRESS = 82H (Power-ON setting value) bit 3 bit 2 bit 1 bit 0 MUTE AGC AGC: (0) (0) MUTE OFF , MODE (0) – 7 – CXA2021S 0 = OFF , ...
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... Electrical Characteristics Measurement Circuit L- R-IN C10 0.1µ CXA2021S – 8 – CXA2021S TP-PS LOUT PS SDA ROUT SCL ...
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... Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same. C10 0.1µ CXA2021S – 9 – CXA2021S LOUT SDA ROUT SCL ...
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... BALANCE and VOLUME circuits Controls BALANCE and VOLUME in 64 steps each. • DAC DAC circuit for controlling BASS, TREBLE, VOLUME and BALANCE. Internal impedance is approximately 20kΩ. Connect external capacitance for LPF. – 13 – CXA2021S . Tone control H ...
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... Frequency [Hz] CH. vs. TREBLE-CONTROL (MAX) 17.5 15.0 12.5 10.0 7.5 5.0 2.5 0.0 –2.5 10 100 Frequency [Hz] CL. vs. BASS-CONTROL (MAX) 17.5 15.0 12.5 10.0 0.1µ 7.5 1µ 5.0 2.5 0.0 –2.5 10 100 Frequency [Hz] – 14 – BASS-TREBLE MAX. BASS-TREBLE MIN. 1k 10k 0.047µ 0.022µ 2200p 4700p 470p 1k 10k 0.047µ 0.01µ 0.47µ 1k 10k CXA2021S 100k 100k ...
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... TREBLE CONTROL characteristic 12 10 Input = 10kHz –2 –4 –6 –8 –10 – AGC characteristic 10 100mV IN [rms] – 15 – CXA2021S OUT BUS Data [BALANCE BUS Data [TREBLE] AGC = OFF AGC = ON 1V ...
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... SONY CODE EIAJ CODE JEDEC CODE 22PIN SDIP (PLASTIC 1.778 + 0.15 PACKAGE STRUCTURE MOLDING COMPOUND SDIP-22P-01 LEAD TREATMENT SDIP022-P-0300 LEAD MATERIAL PACKAGE WEIGHT – 16 – CXA2021S 0° to 15° EPOXY RESIN SOLDER PLATING COPPER ALLOY 0.95g ...