AN8946SB Datasheet, PDF (1/10 Pages) Panasonic Semiconductor – FM demodulation IC for BS/CS broadcasting

ICs for TV
AN8946SB
FM demodulation IC for BS/CS broadcasting
s Overview
The AN8946SB is a 5 V single power supply and low
power consumption FM demodulation IC for BS/CS broad-
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casting. It features PLL · FM demodulation, 2nd IF AGC
amp., AGC detection and AFC (applicable to both mean
value and keyed types).
s Features
• 5 V single power source
14
• Low power dissipation (typ. 170 mW)
• S/N 65 dB or more
• Inter-modulation interference ratio: 50 dB or more
• AGC amp built in (Reduction range: 55 dB)
(0.4)
• Adjustment-free VCO coil
s Applications
• BS/CS tuner, television
Unit : mm
28
15
7.2±0.3
9.3±0.3
SSOP028-P-0375A
s Block Diagram
AFC
amp.
Key Comp.
Latch
AGC
amp.
IF
DC
DC
amp.
amp.
amp.
PD
VCO
REG
Video Loop
amp. amp.
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