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TDA7421 数据表(PDF) 33 Page - STMicroelectronics

部件名 TDA7421
功能描述  AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS
PDF  38 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7421 数据表(HTML) 33 Page - STMicroelectronics

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From Cx - see schematic (part D)
From LPOUT - pin 17
RFVcc
OSCVcc
30 dB differential gain
6p
10n
6p
3p
MIX_IN
50
1K
T1
10n
FM IN
SP
0
22p
100K
0
0
1K5
4.7n
100n
0
0
4.7n
TP20
5K6
1M
1K5
15p
15p
10.25MHz
10n
10u
+
10n
3.3p
L2
100K
100K
470
68p
15p
1K8
22u
+
5p
AM MIX1 IN-
1
AM MIX1 IN+
2
FM MIX IN-
3
FM MIX IN+
4
FM RF AGC IN
5
FM AGC OUT
6
RF GND
7
VCO B
8
VCO E
9
OSC GND
10
XTAL D
11
XTAL
12
OSC VCC
13
FM ANT ADJ
14
FM RF ADJ
15
PLL VCC
16
1K5
47n
TP21
Evaluation Board Schematic Circuit (part A)
From Rx
I2CBUS
+5V
33K
2.7n
4K3
33n
1n
18K
4.7n
1
2
3
4
5
22n
22n
10u
TP18
3.3n
+
TP22
2.2u
+
AM ST
TP19
Evaluation Board Schematic Circuit (part B)
TDA7421
33/38



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