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DEH-1630R/XU/EW
55
5678
56
7
8
C
D
F
A
B
E
No. Symbol I/O Explain
1 AMANT 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.
2 RFGND RF ground
Ground of antenna block
3 FMANT I FM antenna input Input of FM antenna 75Ω Surge absorber
(DSP-201M-S00B) is necessary.
4 VCC power supply The power supply for analog block. D.C 8.4V ± 0.3
V
5 SL O signal level
Output of FM/AM signals level
6 CE2 I chip enable-2 Chip enable for EEPROM ”Low” active
7 WC I write control Y
ou can write EEPROM, when EEPROM write control is “Low”.
Ordinary non connection
8 CE1 I chip enable-1 Chip enable for AF•RF ”High” activ
e
9 CK I clock
Clock
10 DI I data in
Data input
11 LDET O lock detector
“Low” active
12 OSCGND osc ground Ground of oscillator block
13 ROM_VDD power supply Power supply for EEPROM pin 13 is connected with a power supply of
micro computer.
14 DO O data out
Data output
15 DGND digital ground
Ground of digital block
16 NC non connection
Not used
17 VDD_3.3 power supply The power supply for digital block. 3.3V ± 0.2
V
18 RDS_CK O RDS clock
Output of RDS clock(2.5V)
19 RDS_DATA O RDS data Output of RDS data(2.5V)
20 RDS_LOCK O RDS lock
Output unit “High” active(2.5V) (RDS_LOCK turns over by the
external transistor. “Low” active)
21 RDS_HSLK O RDS high speed
Output unit “High” active(2.5V)(RDS_HSLK turns over by the
lock external transistor
. “Low” active)
22 AUDIOGND audio ground Ground of audio block
23 L ch O L channel output FM stereo “L-ch” signal output or AM audio output
24 R ch O R channel output FM stereo “R-ch” signal output or AM audio output
FMRF
ANT adj
RF adj
FM ANT
T51
CF52
CF51
RFGND
OSCGND
DGND
AUDIOGND
NC
VCC
VDD_3.3
3.3V
2.5V
IC 4
3.3V 2.5V
←
IC 2
2.5V
WC
CE2
ROM_VDD
SL
DI
CK
CE1
LDET
DO
RDS_CK
RDS_DATA
RDS_LOCK
RDS_HSLK
7 6 13 5 10 9 8 11 14 18 19 20 21
1
3
212 152216 4
17
IC 1
3.3V
AM ANT
FMRF
ATT
LPF
OSC
IC 3 EEPROM
5.0V
IC 5
5V 3.3V
←
ATT
MIXER, IF AMP
DET, FM MPX,
RDS DECODER
24
23
Rch
Lch
- FM/AM Tuner Unit