VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Datasheet
155/622 Mhz 16 Channel PRBS
Generator and Comparator.
VSC8109
Table 12: Pin Definitions
Signal
Pin
I/O
Level
Pin Description
IO
VCC
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
N/C
N/C
GND
GND
ECL
ECL
GND
ECL
ECL
ECL
ECL
ECL
ECL
GND
ECL
ECL
-2V
PWR
VCC
PWR
FR_SYNC
PRBS_SYNC
VCC
O
Frame Sync Output Signal
PRBS Sync Output Signal
O
PWR
WRD_SRC0
WRD_SRC1
WRD_SRC2
WRD_SRC3
WRD_SRC4
WRD_SRC5
VCC
I
Outmux/Static signal Bus
Outmux/Static signal Bus
Outmux/Static signal Bus
Outmux/Static signal Bus
Outmux/Static signal Bus
Outmux/Static signal Bus
I
I
I
I
I
PWR
WRD_SRC6
WRD_SRC7
VTT
I
Outmux/Static signal Bus
Outmux/Static signal Bus
I
PWR
LD_WRD_L
LD_WRD_U
VCC
I
ECL
ECL
GND
ECL
ECL
GND
GND
ECL
ECL
-2V
I
PWR
I
LD_SRC_L
LD_SRC_U
VCC
I
PWR
PWR
I
VCC
OUT_SEL0
OUT_SEL1
VTT
Output Select Signal
Output Select Signal
I
PWR
I
TEST
GND
GND
GND
N/C
Test Input
Test Input
TEST
I
VCC
PWR
N/C
N/C
PWR
PWR
REFPWR
N/C
PWR
I
I
I
N/C
VCC
GND
GND
-1.32V
N/C
VCC
VREF
I
VCC
GND
-2.0
VSCTE
IO
N/C
N/C
G52207-0, Rev. 3.0
4/3/98
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 15
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