CXA2020M Sony, CXA2020M Datasheet
CXA2020M
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CXA2020M Summary of contents
Page 1
... EIAJ Sound Multiplexing Decoder Description The CXA2020M/ bipolar IC designed as EIAJ TV sound multiplexing decoder, provides various functions including sound multiplexing demodulation, broadcast mode (stereo/bilingual discrimination display, and muting. Features • Adjustment free of filter. • High frequency stereo separation improved. • An internal active filter greatly reduces the external parts. • ...
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... MAIN OUT IIL LOGIC & CONT 3.5f 952Hz H CLOCK CLOCK 3.5f H VCO LED AM 952Hz COMP DRIVE DEMOD BPF MAIN OUT IIL LOGIC & CONT 3.5f 952Hz H CUE CLOCK CLOCK CARRIER 3.5f H VCO AM 952Hz LED COMP DEMOD DRIVE BPF CXA2020M ...
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... High, the forced monaural mode 50k operates for both GND stereo and bilingual broadcasts. 138k Sound multiplexing signal input. Typical input level 30k = 70mVrms (monaural, 100%) 4.2V GND Vcc Bias capacitor 11k connection of Cue pulse generator. 2k 4.2V CXA2020M/S ...
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... GND Vcc Vcc 147 17.2k 19 32k (15) 1.5m 32k GND – 4 – CXA2020M/S Description 10.5k Mode indicator LED connection. Pin 11 (9): stereo Pin 12 (10): sub Pin 13 (11): main GND DC voltage-based output mode switch for 4.2V bilingual broadcasts. GND Output muting. ...
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... Vcc 64k 16k 147 (22) 147 1.7V 4.2V – 5 – CXA2020M/S Description R-ch output. L-ch output. During "TEST", the Cue signal component passed through the Cue BPF is output. Vcc DC cut capacitor connection of main signal. Vcc DC cut capacitor 20P connection of sub signal ...
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... Electrical Characteristics Measurement Circuit (CXA2020M) ON OFF SW6 C10 10µF TEST NORM (ON) (OFF) SW4 C9 1µ 10µF C2 47µF SIG SIGNAL GND C10 1µ CXA2020M 10µF 10µF GND R2 910 E1 9V ATT ATT is set to bring L SW5 – 6 – CXA2020M/S SW1 15kHz CCIR MEASUREMENT ...
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... Input signal: SIG4 Measure distortion of output signal 2 (1kHz, sine wave) of Pin 21 (17) (15kLPF) Input signal: SIG5 Measure distortion of output signal 2 (1kHz, sine wave) of Pin 20 (16) (15kLPF) – 7 – CXA2020M/S Measure- ment Min. Typ. Max. point Pin Pins 20 and 21 480 580 690 ...
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... Pins 20 and 21 2 (16 and 17): Vm4 Vm4 Fm2 = 20log Vm2 (15kLPF) Input signal: SIG7 Measure distortion of output signal 2 (1kHz, sine wave) of Pin 19 (15) (15kLPF) – 8 – CXA2020M/S Measure- ment Min. Typ. Max. point Pin 21 440 540 640 (17) Pin 20 440 540 640 ...
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... Calculate the level difference between the output amplitude of Pins 20 and 21 (16 and 17) 2 (Vms1) and the measured value (Vm3) in measurement No. 13 Vm3 Cms1 = 20log (dB) Vms1 (15kLPF, 1kBPF) – 9 – CXA2020M/S Measure- ment Min. Typ. Max. point Pins 20 and 21 — 0.2 1 (16 and 17) ...
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... Input signal: SIG7 Calculate the level difference between the output amplitude of Pins 20 and 21 (16 and 17) 4 (VMm) and the measured value (Vm3) in measurement No. 13. Vm3 Mm = 20log (dB) VMm (15kLPF, 1kBPF) – 10 – CXA2020M/S Measure- ment Min. Typ. Max. point Pins 20 and — (16 and 17) Pins ...
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... Change SIG12 and measure amount of 2 attenuation at the point "monaural" switches to "Sound multiplex". Input signal: SIG13 Change SIG13 and measure amount of 2 attenuation at the point "monaural" switches to "Sound multiplex". – 11 – CXA2020M/S Measure- ment Min. Typ. Max. point Pins 20 and — (16 and 17) ...
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... SIG17 (mVrms) BIAS Condition Table off off off off off off off off off off off off on on off off on on – 12 – CXA2020M/S Measure- ment Min. Typ. Max. point Pin 21 330 480 620 (17) Pin — (22) BIAS 0.5V 0.5V 0.5V ...
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... SIG15 : Sound MPX signal Main : 1kHz, 100% Sub : 0% (Carrier only) Cue : Bilingual SIG16 : 31.47kHz sine wave 42mVrms SIG17 : 70.80kHz sine wave 42mVrms SIG18 : Sound MPX signal L- R- Cue : Stereo Sound MPX signal level is defined as 100% MONO at 1Vp-p. – 13 – CXA2020M/S ...
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... MAIN OFF ON SUB MAIN OFF ON MAIN MAIN OFF OFF MAIN MAIN OFF OFF DC DC OFF OFF MONO MONO OFF OFF DC DC OFF OFF ) is created and sent to the Logic H CXA2020M/S MAIN OFF OFF OFF OFF ON ON OFF ON ON OFF OFF OFF OFF ...
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... Set the encoder to stereo mode, and input a 100% modulated 1kHz signal; also set the encoder so that only the L-ch is output. 3) Monitor the oscilloscope and AC voltmeter and adjust VR2 so that the R- minimum. (Separation standard: 35dB or more) Application circuit R L MPX IN VR2 L. OUT R. OUT Fig. 1 – 15 – CXA2020M/S Oscilloscope AC Voltmeter CH1 CH2 1kHz BPF Switch trap, H ...
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... SW5: F. MONO- Forced monaural mode operates only for stereo. F. MAIN- Forced monaural mode operates for both stereo and bilingual. – 16 – 2.4k 2.4k BOTH C5 SW1 SW3 SW2 10µ 910 910 910 R6 R5 2.4k 2.4k BOTH SUB MAIN SW1 R7 SW2 SW3 3. 910 910 910 Vcc 9V CXA2020M/S R7 3.6k Vcc 9V ...
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... Cue BPF frequency characteristics 0 –20 –40 –60 3.5f 3.5f 3. –40k –20k Frequency [Hz] Main Sub 10k 3.5f 3. +20k +40k – 17 – SUB BPF frequency characteristics 0 –20 –40 – Frequency [kHz] MAIN distortion characteristics 100 200 300 400 MAIN modulation factor [%] CXA2020M/S 90 100 500 ...
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... EPOXY RESIN SOLDER PLATING 42/COPPER ALLOY 0.7g + 0.4 2.3 – 0.15 0.15 + 0.2 0.1 – 0.05 + 0.1 0.2 – 0.05 EPOXY RESIN SOLDER PLATING 42/COPPER ALLOY 0.7g CXA2020M/S ...
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... Two kinds of package surface: 1.All mat surface type. + 0.15 0.9 – 0.1 2.All mirror surface type. PACKAGE STRUCTURE MOLDING COMPOUND EPOXY RESIN SDIP-22P-01 LEAD TREATMENT SOLDER PLATING SDIP022-P-0300 LEAD MATERIAL COPPER ALLOY PACKAGE MASS 0.95g – 19 – CXA2020M/S 0° to 15° Sony Corporation ...