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

• Manufacturer Part Number: u2860b-b
• Description: Double Demodulator Stereo
• Manufacturer: ATMEL Corporation

U2860B-B
8 (11)
95 10707
95 10705
95 10703
120
100
–10
–20
–30
–40
–50
–60
–70
–80
80
60
40
20
0.5
0.4
0.3
0.2
0.1
0.0
0
0
2
30
Figure 10. VCO free-running frequency
1
Figure 8. Total harmonic distortion
R 10 = 30 K
Pin 10 open
R 10 = 15 K
40
3
2
Figure 9. AM suppression
50
3
4
60
IF input level/ dBmV
Frequency/ MHz
Frequency/ MHz
4
5
70
5
80
6
6
90 100 110 120
7
7
8
8
9
9
95 10702
95 10704
95 10706
–10
–14
–18
–50
–55
–60
–65
–70
–75
–80
3.0
2.5
2.0
1.5
1.0
–2
–6
2
26
1
2
Figure 11. Capture and hold range
Figure 12. Limiter characteristics
Figure 13. Signal to noise ratio
input level =
28
2
f = 5.5 MHz, FM-dev = +/–50 kHz,
fmod = 1 kHz, 50 ms de-emphasis
30
3
4
32
IF input level/ dBmV
Frequency/ MHz
Frequency/ MHz
4
34
caption
5
36
6
6
38
hold
Rev. A2, 08-Feb-01
7
40
8
8
42
44
9