Integra DTR-6.8, Руководство по обслуживанию

Страница: 79 / 219

TERMINAL DESCRIPTION(1/8)
Q8001: FLI8125-LF-BC (Video Processor)
IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -42
DTR-6.8
Analog Input Port
Pin Name No. I/O Description
VDD18_AB 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_TEST 162 O Analog Front End Test O/P. Leave this Pin open. Used for factory testing purpose only.
AVDD_ADC 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.
GNDS 167 AG Analog Ground. Must be directly connected to the analog system ground plane on board.
A1P 168 AI Positive analog input ‘A’ for channel 1.
The input has to be AC coupled using a series 20 Ohm resistor and 0.1uF Capacitor network.
GNDS 169 AG Analog Ground. Must be directly connected to the analog system ground plane on board.
B1P 170 AI Positive analog input ‘B’ for channel 1.
The input has to be AC coupled using a series 20 Ohm resistor and 0.1uF Capacitor network.
GNDS 171 AG Analog Ground. Must be directly connected to the analog system ground plane on board.
C1P 172 AI Positive analog input ‘C’ for channel 1.
The input has to be AC coupled using a series 20 Ohm resistor and 0.1uF Capacitor network.
AVDD_A 173 AP Analog Power (3.3V) for ADC of Channel-A. Must be bypassed with 0.1uF capacitor to the
analog system ground plane.
AN 174 AI Negative analog input ‘A’ for channels 1 through 4.
This acts as the return Path for the Sources connected to Channel-A Inputs. This has to be AC
coupled using a series 57.6 Ohm resistor and 0.1uF Capacitor network to Analog Ground
Plane on board.
AGND 175 AG Analog Ground. Must be directly connected to the analog system ground plane on board.
SV2P 176 AI Positive analog sync input for channel 2.
The input has to be AC coupled using a series 20 Ohm resistor and 0.1uF Capacitor network.
GNDS 177 AG Analog Ground. Must be directly connected to the analog system ground plane on board.
A2P 178 AI Positive analog input ‘A’ for channel 2.
The input has to be AC coupled using a series 20 Ohm resistor and 0.1uF Capacitor network.
GNDS 179 AG Analog Ground. Must be directly connected to the analog system ground plane on board.
B2P 180 AI Positive analog input ‘B’ for channel 2.
The input has to be AC coupled using a series 20 Ohm resistor and 0.1uF Capacitor network.
GNDS 181 AG Analog Ground. Must be directly connected to the analog system ground plane on board.
C2P 182 AI Positive analog input ‘C’ for channel 2.
The input has to be AC coupled using a series 20 Ohm resistor and 0.1uF Capacitor network.
AVDD_B 183 AP Analog Power (3.3V) for ADC of Channel-B. Must be bypassed with 0.1uF capacitor to the
analog system ground plane.
BN 184 AI Negative analog input ‘B’ for channels 1 through 4.
This acts as the return Path for the Sources connected to Channel-B Inputs. This has to be AC
coupled using a series 57.6 Ohm resistor and 0.1uF Capacitor network to Analog Ground
Plane on board.
AGND 185 AG Analog Ground. Must be directly connected to the analog system ground plane on board.