EIAJ Sound Multiplexing Decoder
Description
CXA2020M/S
EIAJ Sound Multiplexing Decoder
Description The CXA2020M/S, is a bipolar IC designed as EIAJ TV sound multiplexing decoder, provides various functions including sound multiplexing demodulation, broadcast mode identification (stereo/bilingual discrimination display), mode display, and muting.
Features • Adjustment free of filter.
• High frequency stereo separation improved.
• An internal active filter greatly reduces the external parts.
• Use of the countdown method for broadcast mode identification eliminates the necessity of adjusting the identification system (Cue oscillator).
• Output level: 520mVrms (1kHz, monaural, 100%).
• Internal filter eliminates interference from digital facsimile signals.
• The discrimination time needed to shift from multiplexing sound to monaural sound is reduced.
• Forced monaural mode can be set to operate only for stereo broadcasts or for stereo/bilingual broadcasts.
Applications • Color TVs • Hi-Fi VCRs Structure Bipolar silicon monolithic IC Pin Configuration
GND 1 NC 2 REFL 3 Vcc 4 NC 5
CXA2020M 28 pin SOP (Plastic)
CXA2020S 22 pin SDIP (Plastic)
Absolute Maximum Ratings (Ta = 25°C) [ ( ) is the pin No.
for the CXA2020S.
] • Supply voltage VCC 10 • Input signal (Pin 6) Vis 0.
6 • Control voltage (Pins 5, 12, 13, 14) Vic VCC • Operating temperature Topr –20 to +75 • Storage temperature Tstg –65 to +150 • Allowable power dissipation PD (A2020M) 1000 (A2020S) 900 • LED drive current ILED 10 Operating Supply Voltage Range 8.
5 to 9.
5
V Vp-p V °C °C mW mW mA V
CXA2020M
28 SUBI 27 NC 26 SC OUT 25 SC IN 24 NC GND 1 NC 2 REFL 3 Vcc 4
CXA2020S
22 SUBI 21 SC OUT 20 SC IN 19 MC OUT
CXA2020M
MPX IN 7 NC 8 CUBI 9
22 MC IN 21 L OUT 20 R OUT 19 M OUT 18 FOMO 17 MUTE 16 MODE 15 NC
MPX IN 6 NC CUBI 7 8
CXA2020S
MO MODE 6
23 MC OUT
MO MODE 5
18 MC IN 17 L OUT 16 R OUT 15 M OUT 14 FOMO 13 MUTE 12 MODE
NC 10 LEDST 11 LEDSU 12 LEDM 13 NC 14
LEDST 9 LEDSU 10 LEDM 11
Sony reserves the right to change products and specifications...
Similar Datasheet
