VSC8122QP View Datasheet(PDF) - Vitesse Semiconductor
Part Name
Description
Manufacturer
VSC8122QP Datasheet PDF : 14 Pages
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VITESSE
SEMICONDUCTOR CORPORATION
Multi-Rate SONET/SDH
Clock and Data Recovery IC
Data Sheet
VSC8122
Pin #
Name
I/O
Level
Description
35
VCC
I
+3.3V typ. Positive power supply
36
VEE
I
GND typ. Negative power supply
37
VCC
I
+3.3V typ. Positive power supply
38
DO-
O
HS High-speed data output, complement.
39
DO+
O
HS
High-speed data output, true
40
VCC
I
+3.3V typ. Positive power supply
41
VEE
I
GND typ. Negative power supply
42
VCC
I
+3.3V typ. Positive power supply
43
VEE
I
GND typ. Negative power supply
44
REFCK1-
I
LVPECL Reference clock 1 input, complement
45
REFCK1+
I
LVPECL Reference clock 1 input, true
46
REFCK0-
I
LCPECL Reference clock 0 input, complement
47
REFCK0+
I
LVPECL Reference clock 0 input, true
48
VEE
I
GND typ. GND power supply
49
VCC
I
+3.3V typ. Positive power supply
50
REF_SEL[0]
I
—
Reference clock rate select pin 0
51
REF_SEL[1]
I
—
Reference clock rate select pin 1
52
VCC
I
+3.3V typ. Positive power supply
53
VEE
I
GND typ. Negative power supply
54
VEE
I
GND typ. Negative power supply
55
VCC
I
+3.3V typ. Positive power supply
56
DI-
I
HS High-speed data input, complement
57
DI+
I
HS
High-speed data input, true
58
VCC
I
+3.3V typ. Positive power supply
High-speed data input termination voltage (may be connected
59
VTERM
I
0V->3.3V to ground through a series AC-coupling capacitor)
60
VEE
I
GND typ. Negative power supply
61
VCC
I
+3.3V typ. Positive power supply
62
NC
—
—
No connect, leave unconnected
63
VCC
I
+3.3V typ. Positive power supply
64
NC
—
—
No connect, leave unconnected(1)
NOTE: (1) No connect (NC) pins must be left unconnected, or floating. Connecting any of these pins to either the positive or neg-
ative power supply rails may cause improper operation or failure of the device, or in extreme cases, cause permanent
damage to the device.
Page 10
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
G52228-0, Rev 4.1
01/05/01
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