Pin Description and Equivalent Circuit
Pin No.
Symbol Z: Imp VDC (V)
SOP SDIP
CXA1560S, CXA1561M/S, CXA1562M/S
Equivalent circuit
VCC
Description
1 1 IREF
0 VEE + 1.25V
2, 23 2, 21 PB IN
40k
40K VCT
4, 21 4, 19 MPX IN
62k
3, 22 3, 20 LINE IN 62K VCT
VEE + 1.25V
Reference current pin for
setting internal filter cut-off
frequency
VEE
VCC
VCT
Playback input pin
Reference level = –30dBm
Buffer amplifier input pin to
drive multiplex filter
Reference level = –19dBm
VEE
VCC
VCT
Recording input pin
Reference level = –25dBm
5, 20 5, 18 MPX OUT 0
VCT
500
8.8k 500
VEE
VCC
Buffer amplifier output pin
to drive multiplex filter
Reference level = –15dBm
VEE
–3–