an8946sb Panasonic Corporation of North America, an8946sb Datasheet - Page 9

• Manufacturer Part Number: an8946sb
• Description: Fm Demodulation Ic For Bs/cs Broadcasting
• Manufacturer: Panasonic Corporation of North America

ICs for TV
Pin No.
Terminal Equivalent Circuits (continued)
25
26
27
28
20 k
50 k
1 k
100 A
500 k
100 A
10 k
Equivalent circuit
10 k
200
25
26
500
1 k
1 k
28
27
AFC output R
• Outputted is a center point potential of
• Also used as a reference power supply
AFC LPF2
• Construct a filter with an output im-
AFC LPF1
• Low impedance (approximately 0.7
• High impedance (floating) for high-
Key pulse LPF
• Pin to smooth a key pulse
• Identifying a key pulse by this pin.
a loop amp. output dynamic range.
for video amp.
pedance approximately 500 k at pin
26 and an external capacitor between
pin 26 and pin 27.
V) for low-level (0 V) of pin 1
level (0.5 V) of pin 1
Description
AN8946SB
Voltage
(Open)
1.5 V
1.5 V
0.6 V
0 V
9