NJM2550 JRC, NJM2550 Datasheet - Page 14

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

www.DataSheet4U.com
Ver.2006-02-24
6
5
4
3
2
1
0
80
70
60
50
40
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
RSSI Output versus Temperature-10.7MHz-
Current Consumption versus Temperature
-40
1
0
-40
-40
fdev=±100kHz, fmod=1kHz, AM=30%
No input singal, COMP REF=0.6V, COMP IN=0.65V
fif=10.7MHz
-20
-20
-20
S/N versus Temperature
Ambient Temperature Ta(°C)
Ambiet Temperature Ta(°C)
Ambient Temperature Ta(°C)
0
0
0
20
20
20
CHARGE SWITCH=OFF
CHARGE SWITCH=ON
40
40
40
60
60
60
VinIF=80dBuV
fif=50MHz
VinIF=100dBuV
VinIF=60dBuV
VinIF=40dBuV
fif=10.7MHz
80
80
80
100 120
100 120
100 120
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
1
0
RSSI Output versus Temperature-50MHz-
180
160
140
120
100
50
40
30
20
10
Demodulated Signal Level versus Temperature
-40
- 3dB Limiting Sensitivity versus Temperature
80
60
-40 -20
fdev=±100kHz, fmod=1kHz, AM=30%
fif=50MHz
-40 -20
fdev=±100kHz, fmod=1kHz, VinIF=80dBuV
-20
Ambient Temperature Ta(°C)
Ambient Temperature Ta(°C)
Ambient Temperature Ta(°C)
0
0
0
20
20
20
40
40
40
60
60
fif=10.7MHz
60
NJM2550
fif=50MHz
fif=10.7MHz
fif=50MHz
VinIF=100dBuV
VinIF=80dBuV
VinIF=60dBuV
VinIF=40dBuV
80
80 100 120
80
100 120
100 120
- 14 -