AN8946SB Datasheet, PDF (8/10 Pages) Panasonic Semiconductor – FM demodulation IC for BS/CS broadcasting

AN8946SB
s Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
18
20
12 kΩ
50 kΩ
18
14 kΩ
ICs for TV
Description
AGC adjustment
• Inner AGC adjustment pin
• Use at adjusting an IF monitor level.
Voltage
(Open)
1.4 V
19
150 Ω
19
500 µA
20
500 Ω
20
Approx. 900 µA
21
21
22
22
23
24
2 kΩ
24
2 kΩ
500 µA
23
15 pF
IF amp. output
• Pin to check an IF amp. output level
3.3 V
Regulator output
• 2.6 V reference voltage output pin
• Driving capability is 1 mA.
2.6 V
V_CC1
Apply 5 V
• Power supply pin except VCO, AFC from outside
GND1
Apply 0 V
• GND for IF amp. (AGC amp., regul- from outside
ator)
IF amp. input 2
• IF amp. complementary input pin
• Ground in AC with an external capaci-
tor
3.2 V
IF amp. input
• IF amp. input pin
3.2 V
8