Advertisement
Mi EXPLANATION OF IC
Outward Form
80 pins, plastic QFP
Terminal Description
/U Line Detection
OWER key input
1
|8/U DET
2 | KEY INT
N/C
E3861/E3860
010
witching port : LO
5
witching port : LO
ep)
oo ae
utput for Tuner Soft Mute
IC
uring RDS seek LOCAL=LOW
udio muting Active HI
>
10
11
PHONE INT
TAPE IN
G) = Oo
ape Input detection , Active
oOlpiziowln
<iO
TN =
Cat
T Oo ={/0O
za Cc
| ~< M1O
@
mi 'Th ~
wD
=
—
Co
=
12
FWD/REV
+
ape mode: FWD=LO, REW=HI
ape FF/REW LCD indication,
Active LOW
Power supply +5V for tape-
motor
switching circuit,
14
15
Audio system voltage supply
controller
a}
7
mio}
=| 3%
2) o|
=
=.
oO
18
Power supply control terminal of
microcomputer pull up and LCD
driver
FM tuner Voltage supply
controller terminal,
Active LO
AM tuner voltage supply
controller terminal,
Active LO
u-COM GND
DCP SW detection port (A/D)
P ON - P OFF - PON
voltage drop from 4V - OV in
average
RDS S-METER voitage detection
terminal
RDS noise level detection
terminal
GND
FM Station Detector port
AM Station Detector port
AM IF Count
FM IF Count
VDD
QD m
k
-
On
NO ©
>
=
= —|
7
=
O za =
=
fa) Zz S)
22
KEY AD
23
R
24
25
2
Di
DD!
2D OO;
OF
O oO;
On|
3] | ¢
=|
=|
=
Ol
Ww mi
om|
call
(a J
FM SD
AM SD
IF AM
IF FM
Sor
27
29
G
<
e)
FM OSC
FM Oscillation line
AM OSC
AM Oscillation line
33
GND
FM VT voltage controller
AM VT voltage controller
GND
ER OUT1
36__|
TESTO
mi mo
O
3
oO
ARB2570R
I/O | Function
LW / MW switching terminal
LW Active HI and MW Active LO
FM ST indicator input terminal
ki
8
LO for light up. Light off in other
mode and SEEK
RDS Noise clear
io)
lele
:
EE
_ ol N
9
|RDS DISCHG
BEEP
p
©
eB} +
Z
O
=
Be)
mM
@)
< fe
Not in use
RDS Clock input terminal
During SEEK mode, terminal
Active HI
AM DX/LO contro! terminal,
LOCAL = HI
Data input from RDS decoder
GND
GND
GND
GND
GND
GND
42
43
RDS CLK
44
| AM DX/LO
45
|RDS DATA
wo "I
1 NO
2
Q| Z|Z Chie)
Zz ZIDIDIAIO
Olziziziz
=|O/O0;0/0
Cc "
@
e)
m i ° = 6 =
—_
S
i
?)
Oo
a
ty
<
o
—
on ff
in an nN co ce)
Go
on on
$4) "i
za
—
ot in use
LCD IC driver enable port
Interactive
data with electronic
volume control IC
Clock for E-Vol
Clock for LCD driver
62
S|6/<€i<
216
/S)6 9190 Olm
m a8
- |
OlO16
O;OIr
910190
OK
67
Data input from LCD driver
GND
GND
GND
GND
GND
GND
- 2) O
O)NM]—~
[oO
74
|V REG1
75
| GND1
76
'| Xout
77
-COM GND
oscillator
[#9]
Pas
a
= LITO
O18 lw 2
O = o
S(e\e1S15
oi ig /Ol/3
S 3 2
ell ~
uy
3) 5 re
+ = °
=| 1s 2
oO ro)
3
al |=] 15
am
0
m
VDD
+5V voltage supply terminal
| 80 | RESET
Reset input terminal
Note : This is selected at initial retail setting
a = a
Advertisement
