CXA2566M
Description of Operation
1) Det Pin (Pin 7)
This is the external pin for the detector during AVLS mode. The attack time is determined by the internal
charging buffer and the external capacitor. The recovery time is determined by both the 80k impedance inside
the IC and the external capacitor.
2) RF_Out (Pin 9) / RF_In (Pin 10)
These are the two external pin for the power supply's ripple filter. It provides a regulated 0.92 × Vcc to the
internal circuits. The rejection ratio is determined by the resistors inside the IC and the two external capacitors.
32k
100k
368k
VCC
Regulated
VCC
10
9
RF_In
RF_Out
3) C Pin (Pin 13)
32k
Out
Left
Left
32k
32k
32k
32k
The bass boost circuitry is designed to provide a 9dB
gain at 100Hz for C = 0.1µF.
32k
65k
Right
21k
The cut off frequency is determined by:
32k
Out
Right
1
fcutoff =
32k
32k
2π × 16k × C
32k
13
C
– 9 –
SONY [ SONY CORPORATION ]
