參數(shù)資料
型號(hào): TDA7421N
廠商: STMICROELECTRONICS
元件分類: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
封裝: TQFP-64
文件頁(yè)數(shù): 13/47頁(yè)
文件大?。?/td> 374K
代理商: TDA7421N
Electrical specifications
TDA7421N
Figure 3.
AM test circuit
Figure 4.
FM test circuit
T2
15pF
1M
VXTAL
11
12
1
2
AGC2
DET
AGC
W & N
+
-
2K
60
61
330
VMiXOUT
VMIX1AMIN
2K
VIF2AMPIN
VMiX2AMIN
57
55
58
56
VIF2AMPOUT
35
34
33
40
41
32
31
63
64
I AMAGC1PIN
V
AMAGC1RFAMP
VAMSD
VAMSMETER
D98AU910
1
2
1
VCC
AMSMETER
54
T3
T2
22pF
15pF
330K
L2
8
9
3
4
DEMOD
FM AGC
+
-
330
60
61
330
VMIXOUT
VTun
VFMLIMIN
VFMIFAGCIN
52
59
46
45
40
41
39
5
6
VFMSD
VSMSHIFT
D00AU1196
VMiXFMIN
T1
VFMRFAGCIN
VFMAGCOUT
10nF
68pF
V1
VTun
5K
VCC
10nF
53
V
FMAMP1IN
51
330
10nF
+
-
330
49
50
V
FMAMP2IN
48
330
10nF
VFMAMP1OUT
330
VFMAMP2OUT
+
-
10nF
330
L6
AUDIO
38
37
VMUTEDRIVE
10nF
100K
VAUDIO
42
VSMFLT
31
15
16
VRFADJ VPLLOUT
14
VAMTADJ
50
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