US Audio Multiplexing Decoder
The CXA2064M is an IC designed as a decoder for
the Zenith TV Multi-channel System. Functions
include stereo demodulation, SAP (Separate Audio
Program) demodulation, dbx noise reduction.
30 pin SOP (Plastic)
• Adjustment free of VCO and filter.
• Audio multiplexing decoder and dbx noise
reduction decoder are all included in a single chip.
Almost any sort of signal processing is possible
through this IC.
• Various built-in filter circuits greatly reduce external
• This IC is near pin to pin compatible with the
TV, VCR and other decoding systems for US audio
multiplexing TV broadcasting
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
• Operating temperature Topr –20 to +75
• Storage temperature Tstg –65 to +150
• Allowable power dissipation
• STID, SAPID drive current
IO 2 (max.)
Bipolar silicon monolithic IC
Range of Operating Supply Voltage
9 ± 0.5
∗ This device is available only to the licensees of the dbx-TV noise
Standard I/O Level
• Input level
COMPIN (Pin 7)
• Output level
TVOUT-L/R (Pins 23 and 22)
100mVrms (MONO 100Hz 100% mod.)
490mVrms (MONO 100Hz 100% mod.)
Pin Configuration (Top View)
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.