參數(shù)資料
型號: TUA4401K
廠商: INFINEON TECHNOLOGIES AG
元件分類: 接收器
英文描述: FM, AUDIO SINGLE CHIP RECEIVER, PQFP44
封裝: MQFP-44
文件頁數(shù): 14/41頁
文件大?。?/td> 990K
代理商: TUA4401K
Functional Description
3 - 13
TUA 4401K
Wireless Components
Specification, 17.02.00
3.3 Functional Block Diagram
Funct_block.wmf
Figure 3-3
Functional Block Diagram
Ga
te
2
FM
Pi
n
D
iod
e
1
pr
est
AGC
FM
OSC
B
u
ffe
r/
Di
v
2
OSC
1.
LO
V
RE
F
RF
N
c
oun
te
r
SOCCAR
Bus
C
har
ge
pum
p
PD
Por
t
R
coun
te
r
adj
cr
ys
ta
l
di
v/
6
Cl
o
c
k
co
unt
er
IF
count
er
7
Bi
t
ADC
Ga
te
ti
m
e
cou
n
te
r
MP
det
.
Af
C
lo
o
p
De
m
FM
I
F
lim
ite
r
Fi
el
d
st
rengt
h
V
Re
f
IF
a
m
p
gai
n
adj
.
4
bi
tD
A
C
IF
g
a
in
2
bi
tD
A
C
Pr
e
s
t.
AGC
th
re
s
h
.
21
24
22
23
25
26
20
18
19
27
17
5
4
15
16
14
9
1
0
11
8
12
67
3
1
2
38
41
40
39
42
43
44
35
34
31
36
33
28
32
30
29
Da
ta
Bus
1
0
.7
M
H
z
CER
Fi
lt
e
r
10
.7
M
H
z
CER
Fi
lt
e
r
10
.7
M
H
z
CER
Fi
lt
e
r
or
A
m
p
Ext
e
rnal
MO
S
te
tr
o
d
e
VCC
IF
MPd
et
in
MP
Xout
M
P
det
ou
t
Fi
e
ld-
st
re
ngt
h
Stat
ion_
De
te
ct
VCCD
P2
P1
SDA
SCL
V
CC
RF
13
37
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