Table of Contents
Advertisement
1
QQ
3 7 63 1515 0
- FM/AM Tuner Unit
A
AM ANT
FMRF
1
ATT
B
FM ANT
3
ATT
FMRF
ANT adj
C
No. Symbol
I/O Explain
1 AMANT
TE
L 13942296513
2 RFGND
3 FMANT
4 VCC
5 SL
O signal level
6 CE2
D
7 WC
8 CE1
9 CK
10 DI
11 NC
12 OSCGND
13 ROM_VDD
14 DO
O data out
15 DGND
E
16 NC
17 VDD_3.3
18 NC
19 NC
20 NC
21 NC
22 AUDIOGND
www
23 L ch
O L channel output
24 R ch
O R channel output
F
80
1
http://www.xiaoyu163.com
2
7 6
IC 3 EEPROM
5.0V
OSC
IC 1
3.3V
MIXER, IF AMP
RF adj
T51
2
12
15
22
16
I
AM antenna input
AM antenna input high impedance AMANT pin is connected with
an all antenna by way of 4.7µH. (LAU type inductor) A series circuit
including an inductor and a resistor is connected with RF ground for
the countermeasure against the ham of power transmission line.
RF ground
Ground of antenna block
I
FM antenna input
Input of FM antenna 75Ω Surge absorber
The power supply for analog block. D.C 8.4V ± 0.3V
power supply
Output of FM/AM signals level
I
chip enable-2
Chip enable for EEPROM " Low" active
I
write control
You can write EEPROM, when EEPROM write control is " Low" .
Ordinary non connection
I
chip enable-1
Chip enable for AF•RF " High" active
I
clock
Clock
I
data in
Data input
non connection
Not used
osc ground
Ground of oscillator block
power supply
Power supply for EEPROM pin 13 is connected with a power supply of
micro computer.
Data output
digital ground
Ground of digital block
non connection
Not used
The power supply for digital block. 3.3V ± 0.2V
power supply
non connection
Not used
non connection
Not used
non connection
Not used
non connection
Not used
audio ground
Ground of audio block
FM stereo " L-ch" signal output or AM audio output
FM stereo " R-ch" signal output or AM audio output
x
ao
.
i
DEH-P750MP/XN/UC
2
http://www.xiaoyu163.com
3
13
5
10 9 8
11
14
18 19 20 21
IC 5
5V
3.3V
LPF
CF52
CF51
IC 4
3.3V
2.5V
2.5V
3.3V
4
17
Q Q
3
6 7
u163
y
3
4
2 9
9 4
8
IC 2
2.5V
DET, FM MPX
1 3
1 5
0 5
8
2 9
is necessary.
(DSP-201M-S00B)
m
co
.
4
2 8
9 9
Rch
24
Lch
23
9 4
2 8
9 9
Hide quick links:
Advertisement
Table of Contents
