u2860b-m ATMEL Corporation, u2860b-m Datasheet - Page 8

• Manufacturer Part Number: u2860b-m
• Description: U2860b-m Dual-channel Fm Sound Demodulator For Tv Systems
• Manufacturer: ATMEL Corporation

8
U2860B-M
Figure 14-4. Capture and Hold Range
Figure 14-5. Limiter Characteristics
Figure 14-6. Signal-to-noise Ratior
-60
-80
3.0
-10
-14
-18
-50
-65
-70
2.5
-55
-75
2.0
1.0
1.5
-2
-6
2
26
1.0
0
28
2.0
2
30
Input level = caption
3.0
f = 5.5 MHz, FM-dev. = +/- 50 kHz,
fmod = 1 kHz, 50 µs de-emphasis
32
Frequency (MHz)
IF Input Level (dB)
Frequency (MHz)
4.0
4
34
5.0
36
6
6.0
Input level = hold
38
7.0
40
8
8.0
42
9.0
44
10
4794E–TVVCR–12/05