NJM2549 Ver la hoja de datos (PDF) - Japan Radio Corporation
Número de pieza
componentes Descripción
Fabricante
NJM2549 Datasheet PDF : 18 Pages
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NJM2549
[DEMODULATED CHARACTERISTICS (AC Level)]
(Test Circuit 1, Ta = 25°C, V+ = 3V, IF IN = 10.7MHz / 80dBuV, fdev = ± 10kHz, fmod = 1kHz,
unless otherwise noted)
S+N, N, AMR, SINAD versus IF Input Level
(Test Circuit 1)
S+N
0
70
S+N, N , AMR , SINAD versus IF Input Level
(Test Circuit 8)
S+N
0
70
-10
60
-10
SINAD
60
-20
SINAD
50
-20
50
-30
40
-30
40
-40
AMR
30
-40
AMR
30
-50
N
20
-50
20
-60
-70
0
20
40
60
80
IF Input Level ( dBuV )
10
0
100
-60
-70
0
N
20
40
60
80
IF Input Level ( dBuV )
10
0
100
1000
100
10
Detuning Characteristic
( VOAC, THD, S-Curve )
4
Circuit 1
VOAC
3
S-Curve
2
1000
100
10
Detuning Characteristic
( VOAC, THD, N-Curve )
4
Circuit 2
VOAC
3
N-Curve
2
1
1
THD
0.1
0
10.55 10.6 10.65 10.7 10.75 10.8 10.85
IF Input Frequency ( MHz )
Demodulated Signal Level versus
FM Modulation Frequency
175
Circuit 6
fdev= ±100kHz
150
125
100
75
50
25
0
1
Circuit 5
fdev= ±10kHz
10
100
1000
10000
FM Modulation Frequency fmod ( kHz )
Ver.2010-06-24
1
1
THD
0.1
0
10.55 10.6 10.65 10.7 10.75 10.8 10.85
IF Input Frequency ( MHz )
- 16 -
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