NJM2552 JRC, NJM2552 Datasheet - Page 18

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

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Ver.2006-11-06
[FM Demodulation Characteristics]
FM AF OUT Voltage versus Frequency
-10
-20
-30
-40
-50
-60
-70
2.5
1.5
0.5
10
0
2
1
0
200
180
160
140
120
100
420
80
60
40
20
-20
0
and Supply Voltage (S-Curve)
circuit 4, VinIF=80dBuV
VinLO=100dBuV
0.1
FM Modulation Frequency
FM : S+N, N, AMR, SINAD, THD1
FM Demod. Output versus
circuit 4, VinIF=80dBuV
FM Modulation Frequency fmod(kHz)
Mixer Input Level VinMIX(dB)
0
430
versus Mixer Input Level
IF Input Frequency fif(kHz)
20
440
1
40
450
60
SINAD
THD1
S+N
AMR
460
80
10
V+=9.0V
V+=2.7V
100 120
470
2.2V
N
480
100
80
70
60
50
40
30
20
10
0
FM AF OUT Voltage versus Frequency
1000
-10
-20
-30
-40
-50
-60
-70
2.5
1.5
0.5
10
and Ambient Temperature (S-Curve)
100
0.1
2
1
0
0
10
420
1
-20
430
circuit 4, VinIF=80dBuV
circuit4
FM Demod.Output and Distortion
FM : S+N, N, AMR, SINAD, THD1
circuit 4, VinIF=80dBuV
-IF Detuning Characteristics-
430
0
IF Input Frequency fif(kHz)
IF Input Frequency fif(kHz)
versus IF Input Level
IF Input Level VinIF(dB)
440
20
440
40
Ta=85°C
450
THD1
450
Vod1
60
SINAD
THD1
AMR
S+N
460
N
460
80
NJM2552
Ta=- 40°C
Ta= 25°C
100 120
470
470
1000
100
10
1
0.1
480
80
70
60
50
40
30
20
10
0
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