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CXA1552P View Datasheet(PDF) - Sony Semiconductor

Part Name
Description
View to exact match
CXA1552P
Sony
Sony Semiconductor Sony
CXA1552P Datasheet PDF : 16 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
CXA1550P, CXA1551M/P, CXA1552M/P, CXA1553M/P
5) MPX filter termination and C1 for VCC/2 (Pin 4)
The MPX (multiplex) filter termination method shown in Fig. 1 allows saving the coupling capacitors
between the buffer amplifiers and MPX filters. However, the channel to channel separation and REC to PB
crosstalk of low frequency signals will be degraded by the termination resistor RT. For example, 5 kof R1
will degrade the channel to channel separation to 50 dB. Better separation can be obtained by increasing
the capacitance of C1 (Pin 4) to 220 µF or 470 µF.
The allowable minimum value of C1 is 47 µF, and 100 µF is the standard recommended value. Larger
values of C1 are generally desirable in order to improve the crosstalk and ripple rejection ratio.
6) Application for dubbing cassette decks
The CXA1550 series generates non decoded signal at the recoding output in the playback (decode) mode,
and can simplify the structure of dubbing decks. See the Sony’ Dolby B/C type IC (CX20187/CXA1097Q or
CX20188/CXA1098Q) data sheet in detail.
Line
Input
Buffer
MPX
Filter
C11
4.7µ
RT
Line
Input
Buffer
MPX
Filter
RT
C21
4.7µ
16
15
14
13
CXA1550 Series
1
2
3
4
C1
470µ
Fig. 1
—10—
 

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