Daewoo 14Q1 User Manual
Page 12
11
(4) Pin Description
* A : DW5255M*/DW5255RM*, *B : DW370ASM*
Pin
Name
Symbol
Description
A*
B*
A*
B*
A*
B*
1
1
P3.1
T1IC1/CR
SYS
NTSC OUT for switching SAW filter
K6259
- PAL/SECAM : L
- NTSC : H
2
2
P0.7/Open Drain
A0
BUSSTOP
I2C BUS STOP IN for Computer
controlled alignment in Factory
( Active Low )
3
3
P0.6/Open Drain
A1
SDA
Serial data IN/OUT for I2C
4
4
P0.5/Open Drain
A2
SCL
Serial clock IN/OUT for I2C
5
5
P0.4/Open Drain
A3
OPTION
#5 #6 Teletext
#6
6
6
P0.3/Open Drain
A4
OPTION
H H West Teletext
H : STAND-BY
L H East Teletext
L : POWER ON
H L Turkish Teletext
7
7
P0.2/Open Drain
A5
OPTION
Not Used
8
8
P0.1/Open Drain
PWM1-0/ Open Drain
OPTION
Not Used
9
9
P0.0/Open Drain
PWM1-1/ Open Drain
LED
LED drive OUT
- Stand-by mode : H
- Operating mode : L
( IR reception : pulse )
10
10
VSS
VSS
ground
11
11
VCC
VCC
Power Supply
12
12
XTAL1
OSCIN
OSCIN
Input to inverting osc. Amplifier
13
13
XTAL2
OSCOUT
OSCOUT
Output of inverting osc. Amplifier
14
14
P4.0/ALE
PWM1-2/Open Drain
Not Used
H : I/M, L : B/D
15
15
RESET
RESET/Open Drain
RST
RESET IN (ACTIVE LOW)
16
16
P1.7/14BIT PWM
PWM2-0
VT
TUNING VOLTAGE OUT
17
17
P1.6/14BIT PWM
PWM2-1
SW
H : I/M
Not Used
L : B/D
18
18
P1.5/8BIT PWM
PWM1-3/Open Drain
F/SW
Not Used
19
19
P1.4/8BIT PWM
PWM1-4/Open Drain
Not Used
20
20
P1.3/8BIT PWM
PWM1-5/Open Drain
MUTE
AUDIO MUTE OUT
21
21
P1.2/8BIT PWM
TEST
GND
(Must be tied 0V for DW370M*)
22
P1.1/8BIT PWM
Not Used
23
P1.0/8BIT PWM
Not Used
24
VSSA
VSSA
Analog GND for Slicer
25
FIL3
FIL3
PLL Loop Filter I/O for Phase Shifting
26
FIL2
FIL2
PLL Loop Filter I/O for TTX Slicing
27
FIL1
FIL1
PLL Loop Filter I/O for VPS Slicing
28
VCCA
VCCA
Analog Supply for Slicer
29
IREF
IREF
Reference Current for Slicer PLLs