DAEWOO ELECTRONICS DSL-19M1WCD, Service Manual, Page: 14 / 81

·
PInput
·
Pin List
I/O Legend: A
= Analog,
I
= Input,
O
= Output,
P
= Power,
G
= Ground
Table 1: Analog Input Port
Pin Name No. I/O Description
VDD18_A
B 158 AP Analog Power (1.8V) for A & B Channels. Must be bypassed with 0.1uF capacitor to the analog system
ground plane.
NC 159 No Connection. Leave this pin open for normal operation.
GND18_C 160 AG Analog Ground (1.8V Return) for C channel. Must be directly connected to the analog system ground plane
on board.
VDD18_C 161 AP Analog Power (1.8V) for C Channel. Must be bypassed with 0.1uF capacitor to the analog system ground
plane.
ADC_TES
T 162 O Analog Front End Test O/P. Leave this Pin open. Used for factory testing purpose only.
AVDD_AD
C 163 AP Analog Power (3.3V) for ADC. Must be bypassed with 0.1uF capacitor to the analog system ground plane.
AGND 164 AG Analog Ground. Must be directly connected to the analog system ground plane on board.
AGND 165 AG Analog Ground. Must be directly connected to the analog system ground plane on board.
SV1P 166 AI Positive analog sync input for channel 1.
The input has to be AC coupled using a series 20 Ohm resistor and 0.1uF Capacitor network.