38
SCU-2456ZRN,2556ZRN
7.2 IC
-
Pin Functions(PE5157A)
Pin No.
Pin Name
I/O
Format
Function and Operation
1
avpow
O
C
A Vref watching terminal
2
PEE
O
C
Beep tone output
3
brxen
I/O
C
Communication reception enable input/output
4
binh
O
C
Communication data input inhibit
5
A/
b
I
Model select
6
auxmute
O
C
AUX mute
7
MUTE
O
C
Synthesis mute output
8
BSET
O
C
BUS communication reset output
9
VSS
GND
10
NC
Not used
11
ACCMUTE
O
C
ACC ON mute
12
NC
Not used
13
brst
O
C
Reset output
14
AMPMUTE
O
C
Amp Mute output
15
SYSPW
O
C
System power supply control output
16
PCE
O
C
Chip enable output for PLL IC
17
am
/FM
O
C
AM/FM select output
18
bsrq
I
Communication request input
19
RDSSEL
O
C
Select output for RDS IC
20
rdsrst
O
C
Reset output for RDS IC
21
rdsen
O
C
Enable output for RDS IC
22,23
kdt),!
I
Key data 0,1
24
VSS
GND
25
kdt@
I
Key data 2
26
NC
Connect to GND
27-29
kst)-@
O
C
Key strobe 0-2
30
NC
Not used
31
VDT
O
C
Data output for electronic volume
32
VST
O
C
Strobe pulse output for electronic volume
33
VCK
O
C
Clock output for electronic volume
34
tmute
O
C
Tuner mute output
35
RESET
I
Reset input
36
REMIN
I
Remote control pulse input
37
bsens
I
Back up power sense input
38
asens
I
ACC power sense input
39
*vsens
I
8V sense input
40
VDD
Power supply
41
X2
Crystal oscillator connection pin
42
X1
Crystal oscillator connection pin
43
IC
Connect to GND
44
XT2
Not used
45
XT1
Connect to GND
46
AVSS
I
A/D GND
47
SL
I
Tuner SD level detector input
48
K7MUTE
O
Mute control output for cassette
49
CDMUTE
O
Mute control output for CD
50
PDI
I
Data input from PLL IC
51
RDSRDY
I
Ready input from RDS IC
52
SD
I
SD input
53
testin
I
Test program mode input
54
TELMUT
I
Telephone mute signal input
55
AVDD
Positive power supply terminal for analog circuit
56
AVREF
I
Reference voltage
57
RDSDTI
I
Serial data input for RDS IC
58
RDSDTO
O
Serial data output for RDS IC
59
rdsck
I/O
C
Serial clock output for RDS IC
60
PDO
O
C
Data output for PLL IC
Содержание SCU 2556 ZRN
Страница 4: ...4 SCU 2456ZRN 2556ZRN 2 2 EXTERIOR SCU 2456ZRN ...
Страница 6: ...6 SCU 2456ZRN 2556ZRN 2 3 EXTERIOR SCU 2556ZRN ...
Страница 8: ...8 SCU 2456ZRN 2556ZRN ...
Страница 14: ...14 1 2 3 4 1 2 3 4 D C B A TAPE 4 6dBs A a A b A b 1 2 3 4 5 6 SCU 2456ZRN 2556ZRN ...
Страница 16: ...16 SCU 2456ZRN 2556ZRN 1 2 3 4 1 2 3 4 D C B A 3 1 2 FM AM TUNE DSP 201M A11F B 3 3 FM AM TUNER UNIT B ...
Страница 17: ...17 SCU 2456ZRN 2556ZRN 5 6 7 8 5 6 7 8 D C B A TUNER UNIT B A ...
Страница 20: ...20 SCU 2456ZRN 2556ZRN 1 2 3 4 1 2 3 4 D C B A A A TUNER AMP UNIT ...
Страница 21: ...21 SCU 2456ZRN 2556ZRN 5 6 7 8 5 6 7 8 D C B A A SIDE B ...
Страница 22: ...22 SCU 2456ZRN 2556ZRN 1 2 3 4 1 2 3 4 D C B A 4 2 FM AM TUNER UNIT SIDE A B FM AM TUNER UNIT A B ...
Страница 23: ...23 SCU 2456ZRN 2556ZRN 1 2 3 4 1 2 3 4 D C B A SIDE B B FM AM TUNER UNIT B ...
