Continued from preceding page.
No.
Functions
27 SD monitor
Voltage (V)
VDD
LV23200T
Internal Equivalent Circuit
VDD
27
Remarks
Active “L”
Open collector.
28 FMS meter and AM AGC 0.2V (FM)
outputs
0.8V (AM)
29 PD
−
28
R
Internal load resistance R = 13.9kΩ
Determines the SD response speed
during SEEK by a capacitor externally
connected to pin 28.
PLL charge pump output pin.
29
30 AIN
−
31 AOUT
−
Nch MOS transistor for PLL active low
30
pass filter.
31
32 AM OSC
VCC
32
OSC coil used between pins 32 and 8
(VCC voltage).
33 AFC
Vreg
Enables adjustment of the FM SD
band width by external resistor
between pins 33 and 2 (Vreg voltage).
33
Continued on next page.
No.8301-7/17