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參數(shù)資料
| 型號： | GS9005B |
| 廠商： | Gennum Corporation |
| 英文描述： | GENLINX-TM GS9005B Serial Digital Receiver |
| 中文描述： | GENLINX -商標(biāo)GS9005B串行數(shù)字接收機(jī) |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 137K |
| 代理商： | GS9005B |
5 of 12
32466 - 0
NOTRECOMMENDED
Pin 1
FORNEWDESGNS
Pin 5
PIN NO SYMBOL TYPE
DESCRIPTION
18 V
CC3
Power Supply.
Most positive power supply connection. (VCO, MUX, standards select).
19
CD
Output
Carrier Detect
. Open collector output which goes HIGH when a signal is present at either the Serial
Data inputs or the Direct Digital inputs. This output is used in conjunction with the GS9000B or GS9000S
in the Automatic Standards Select Mode to disable the 2 bit standard select counter. This pin should
see a low impedance (e.g. 1nF to AC Gnd)
frequency setting resistors (R
VCO0
- R
VCO3
). When both SS0 and SS1 are LOW, R
VCO0
is selected.
When SS0 is HIGH and SS1 is LOW, R
VCO1
is selected. When SS0 is LOW and SS1 is HIGH, R
VCO2
is selected and when both SS0 and SS1 are HIGH, R
VCO3
is selected. These pins should see a
low impedance (e.g. 1nF to AC Gnd)
22,23 SCO/SCO Outputs
Serial Clock Outputs (inverse and true).
Pseudo-ECL differential outputs of the extracted serial clock.
These outputs require 390
pull-down resistors to V
EE
.
24,25
SDO/SDO Outputs
Serial Data Outputs (inverse and true).
Pseudo-ECL differential outputs of the regenerated serial data.
These outputs require 390
pull-down resistors to V
EE
.
26
V
CC4
Power Supply.
Most positive power supply connection. (ECL outputs)
27
V
EE2
Power Supply.
Most negative power supply connection. (Phase detector, A/D select, Carrier detect)
28
SS
I
Signal Strength Indicator.
Analog output which indicates the amount of AGC action. This output
indirectly indicates the amount of equalization and thus cable length.
GS9005B PIN DESCRIPTIONS cont.
Fig. 3 Pins 1, 5 and 6
V
CC
V
CC
+
-
+
-
16μA
VCC
2k
2k
1k
1k
1.6V
380μA
50μA
A / D
DDI
Pin 6
DDI
V
CC
1.2V
INPUT / OUTPUT CIRCUITS
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| GS9005B_0411 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Serial Digital Receiver |
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