NJM2552 JRC, NJM2552 Datasheet - Page 5

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

www.DataSheet4U.com
Ver.2006-11-06
Circuit 3 (Gv)
Circuit 4 (Vod1/2, THD1/2/3, S/N1/2, AMR, Vrssi1/2/3, FMIFGV, VAGC, DVod )
LOCAL IN
LOCAL IN
MIX IN
MIX IN
20
20
1
1
C1
1000p
C1
1000p
19
2
19
2
V
V
+
AMP
OSC
MIXER
+
AMP
OSC
MIXER
AM AGC
AM AGC
C16
10u
18
IN
3
IN
18
3
20k
R3
450kHz
1000
AGC
VAGC Vrssi
RF AGC
RF AGC
C8
AGC
OUT
OUT
17
4
17
4
+ -
+ -
1000
C7
RSSI
OUT
RSSI
OUT
16
AM AMP
5
16
AM AMP
5
51
C3
68n
V
+
V
RSSI
+
15
RSSI
6
AM
SW
15
6
AM AF
C4
68n
0.1k to 30k
DET
AM
OUT
DET
AM
AM AF
0.01u
BPF
C11
OUT
R8
8.2k
14
7
14
7
C5
0.1u
FMIFGv
AMP
Gv
OUT
+
-
Vod2 Dvod
THD2 S/N2
THD3
AMP
13
OUT
+
8
-
13
8
C9
1u
270k
FM AMP
-A
C6
0.1u
R4
FM AMP
-A
AMP
AMP
IN
12
9
IN
12
9
AMP
C10
1u
R5
1k
AMP
R10
1.5k
C13
18p
FM AF
OUT
FM AF
10
11
OUT
10
11
DET
R9
10k
FM
CD
DET
FM
C12
0.01u
NJM2552
V
+
THD1
Vod1
31kHz
S/N1
AMR
C17
10u
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