NJM2550 JRC, NJM2550 Datasheet - Page 12

• Manufacturer Part Number: NJM2550
• Description: FM IF Demodulator IC / SSOP16
• Manufacturer: JRC

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Ver.2006-02-24
TYPICAL CHARACTERISTICS
6
5
4
3
2
1
0
-10
-20
-30
-40
-50
-60
-70
80
70
60
50
40
S+N,N,AMR versus IF Input Level-10.7MHz-
0
0
Current Consumption versus Supply Voltage
0
0
fdev=±100kHz, fmod=1kHz, AM=30%
fif=10.7MHz, fdev=±100kHz, fmod=1kHz, AM=30%
S/N versus Supply Voltage
20
2
IF Input Level VinIF(dBuV)
2
Supply Voltage V+(V)
Supply Voltage V+(V)
40
4
CHARGE SWITCH=ON
CHARGE SWITCH=OFF
4
60
6
6
80
fif=10.7MHz
fif=50MHz
S+N
AMR
N
8
8
100
120
10
10
-10
-20
-30
-40
-50
-60
-70
Demodulated Signal Level versus Supply Voltage
0
S+N,N,AMR versus IF Input Level-50MHz-
180
160
140
120
100
50
40
30
20
10
80
60
-3dB Limiting Sensitivisy versus Supply Voltage
0
fif=50MHz, fdev=±100kHz, fmod=1kHz, AM=30%
0
0
fdev=±100kHz, fmod=1kHz, AM=30%
fdev=±100kHz, fmod=1kHz, VinIF=80dBuV
20
IF Input Level VinIF(dBuV)
2
2
Supply Voltage V+(V)
Supply Voltage V+(V)
40
4
4
60
6
NJM2550
6
80
fif=10.7MHz
fif=50MHz
fif=10.7MHz
fif=50MHz
S+N
AMR
N
8
100
8
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120
10
10