CXA2002R
Pin
No.
Symbol
Pin
voltage
Equivalent circuit
Description
35µ
35µ
35µ
23 RAMPCONT —
1.5V
23
143
Ramp pulse rising slope
switchover pin.
Low: 32µA/µs 0.6V or below
High: 17µA/µs 2.3V or above
(The fall time is 32µA/µs in
both cases.)
24 MTQ
—
25 VCC1
4.75
26 REC1CONT —
25k 10k
24
50k 143
15k
7k 7k
270
34k
143
71k
26
66k
EVR adjusting pin to
determine middle-tune Q.
Increasing the applied
voltage increases Q.
Power supply pin for CH1 REC
amplifier and PB amplifier.
EVR adjusting pin for the CH1
recording dumping level.
Reducing the applied voltage
strengthens dumping.
27 REC1OUT
—
12k
27
5.7k
1k
30
CH1 recording output pin.
Open collector.
–8–