Pioneer AVH-P7800DVD [269/280] Fm am tuner unit

Pioneer AVH-P7800DVD [269/280] Fm am tuner unit
AVH-P7800DVD/UC
269
5678
56
7
8
C
D
F
A
B
E
FM ANT
R
F
G
ND
OSCG
N
D
DG
ND
VCC
V
DD
_
3.3
WC
CE2
ROM_VDD
SL
DI
CK
CE1
LDET
DO
RDS_CK
RDS_DATA
RDS_LOCK
RDS_HSLK
7 13 5 10 8 11 14 18 19 20 21
1
3
2
12
1
5
17
AM ANT
16
23
COMP
Lch
24
Rch
22
ANT1
69
IC4
5 V 3.3 V
IC3
EEPROM
IC2
DET/NC/MPC/MPX/DIV/RDS
REG
OSC
X-talCFIFT
LPF
TANK
RF
RFTANK
ATT
ATT
LPFVCO
IC1
MIX/IF/PLL
N
o.
S
y
mbo
l
I
/O
Ex
p
lai
n
1
AMANT
I
AM antenna in
p
u
t
AM antenna input hi
g
h impedance AMANT pin is connected wit
h
an all antenna b
y
wa
y
of 33
µ
H. (LAU t
yp
e inductor) A series circuit
includin
g
an inductor and a resistor is connected with RF
g
round for
the countermeasure a
g
ainst the hum of power transmission line
.
g
2
RF
G
N
D
RF
g
roun
d
g
G
r
ou
n
d
o
f
a
n
te
nn
a
b
l
ock
3
FMANT
I
FM antenna in
p
u
t
In
p
ut of FM antenna 75
Sur
g
e absorber is necessary
.
g
4
V
CC
p
ower su
pp
l
y
±
0
.
3
V
5
SL
si
g
nal leve
l
g
Output of FM/AM si
g
nals leve
l
g
6
C
E
2
I
I
chi
p
enable-
2
Chi
p
enable for EEPROM
L
ow
act
iv
e
7
W
C
wri
te
co
n
t
r
ol
Y
Y
L
ow
.
8
C
E
1
I
I
chi
p
enable-
1
Chi
p
enable for A
F
RF
act
iv
e
9
CK
c
l
ock
Clock data in
p
u
t
1
0
DI
I
data
in Data in
p
u
t
11
LDET
O
l
oc
k
detector
act
iv
e
12
OSCG
N
D
osc
g
round
g
G
r
ou
n
d
o
f
osc
ill
ato
r
b
l
ock
1
3
ROM
_
VD
D
p
ower su
pp
l
y
Power su
pp
l
y
for EEPROM
p
in 13 is connected with a
p
ower su
pp
l
y
o
f
micro com
p
uter
.
14
D
O
O
O
data
out
Data out
p
u
t
1
5
D
G
N
D
di
g
ital
g
roun
d
gg
Ground of di
g
ital bloc
k
g
1
6
CO
M
P
com
p
osite out
p
u
t
FM composite si
g
nal output
.
g
17
VDD
_
3.
3
p
ower su
pp
l
y
The power supply for di
g
ital block. 3.3 V
g
±
0
2
V
1
8
RDS
_
C
K
O
RD
S
c
l
ock
Out
p
ut of RDS clock(2.5 V
)
1
9
RDS
_
DAT
A
O
RD
S
data
2
0
RDS
_
LOC
K
O
O
O
RD
S
l
ock
Out
p
ut unit
Hi
gh
e
x
te
rn
a
l
t
r
a
n
s
i
sto
r.
L
ow
active
)
21
RDS
_
HSL
K
RDS hi
g
h speed
l
ock
Out
p
ut unit
Hi
gh
active
)
22
ANT1
diversit
y
antenna
co
n
t
r
ol
Hi
gh
: MAIN
,
L
ow
=
SUB
2
3
L
ch
O
L channel out
p
u
t
FM
ste
r
eo
L-
ch
si
g
nal output or AM audio outpu
t
24
R
ch
O
R channel out
p
u
t
FM
ste
r
eo
R-
ch
si
g
nal output or AM audio outpu
t
-
FM/AM
T
uner
U
n
it

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