NJM2552 JRC, NJM2552 Datasheet - Page 20

• Manufacturer Part Number: NJM2552
• Description: FM IF Demodulator IC / SSOP20
• Manufacturer: JRC

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Ver.2006-11-06
1000
-10
-20
-30
-40
-50
-60
-70
10
100
0.1
0
AM80% : Demod. Output and Distortion
10
100
AM Demodulated Output versus
-20
1
90
80
70
60
50
40
30
20
10
0
-20
VinLO=100dBuV, AM=80%
AM Modulation Frequency
0.1
VinLO=100dBuV, AM=80%
AM80% : S+N, N versus
AM Modulation Frequency fmod(kHz)
circuit4(BPF less), VinIF=80dBuV, AM=30%
Mixer Input Level VinMIX(dBuV)
Mixer Input Level VinMIX(dBuV)
0
versus Mixer Input Level
0
Mixer Input Level
20
20
1
40
40
THD3
Vod2
60
60
S+N
N
10
80 100 120
80
100 120
100
1000
100
10
1
0.1
-10
-20
-30
-40
-50
-60
-70
1000
10
AM80% : Demod. Output and Distortion
100
0
100
0.1
10
AM Demodulated Output versus
90
80
70
60
50
40
30
20
10
-20
1
0
circui4 , AM=80%
-20
0.1
circuit4, AM=80%
AM80% : S+N, N versus
circuit4, VinIF=80dBuV, AM=30%
0
IF Input Level VinIF(dBuV)
IF Input Frequency
0
versus IF Input Level
IF Input Level VinIF(dBuV)
IF Input Frequency fif(MHz)
fif=450kHz
IF Input Level
20
20
1
40
40
60
THD3
60
Vod2
S+N
80 100 120
N
10
NJM2552
80
100 120
1000
100
10
1
0.1
100
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