U2860B-MFP
| Model | U2860B-MFP |
| Description | Dual-Channel FM Sound Demodulator for TV Systems |
| PDF file | Total 14 pages (File size: 330K) |
| Chip Manufacturer | ATMEL |
Features
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Two Alignment-free PLL FM Demodulators, Automatic Lock-in on the Received Sound
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•
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•
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Carrier Frequency
Mono and Dual Channel Application
Sound IF Inputs Provided for Ceramic Filters
Automatic Mute for Second Sound Channel (Squelch)
Mute Function for Both Sound Channels
5-V Supply Voltage, Low-power Consumption
Few External Components
Description
The U2860B-M is a dual-channel FM sound demodulator realized with Atmel ’s
advanced bipolar process. All TV FM standards, from 4.5 MHz up to 6.5 MHz
(standard M, B/G, I, D/K) can be processed with high performance. The circuit is
alignment-free and has a minimum number of external components. With 5 V supply
voltage, the U2860B-M is suitable for TV, VCR and multimedia applications.
Dual-Channel
FM Sound
Demodulator for
TV Systems
U2860B-M
Figure 1.
Block Diagram
V
S
C
stab
13
12
Supply
11
8
7
V
AF1
V
in1
1
VCO 1
Loop
filter 1
Mute
3
Mute
VCO
offset
10
VCO offset
R
ref
(optional)
V
in2
14
VCO 1
Loop
filter 2
6
V
AF2
Squelch
4
Squelch
Squelch (second carrier)
9
Rev. 4794A–TVVCR–02/04
Related PDFs
| Model | Description | Manufacturer | Operation |
|---|---|---|---|
 U2860B-MFPG3
|
Dual-Channel FM Sound Demodulator for TV Systems | ATMEL | Preview |
