VSC8122-FEC 查看數據表（PDF） - Vitesse Semiconductor
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VSC8122-FEC Datasheet PDF : 14 Pages
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Data Sheet
VSC8122-FEC
VITESSE
SEMICONDUCTOR CORPORATION
Multi-Rate SONET/SDH FEC
Clock and Data Recovery IC
Table 8: Pin Identification
Pin #
Name
I/O
1
FSEL0
I
2
FSEL1
I
3
REF_INPUTSEL
I
4
NC
—
5
VEE_ANA
I
6
VCC_ANA
I
7
NC
—
8
NC
—
9
LOL
O
10
NOREF
O
11
VCC
I
12
FILTAO
I
13
FILTAI
I
14
FILTAIN
I
15
FILTAON
I
16
VEE
I
17
VCC
I
18
NC
—
19
NC
—
20
NC
—
21
NC
—
22
NC
—
23
NC
—
24
VCC
I
25
VEE
I
26
VCC
I
27
CO-
O
28
CO+
O
29
VCC
I
30
VEE
I
31
VCC
I
32
NC
—
33
NC
—
34
NC
—
35
VCC
I
36
VEE
I
37
VCC
I
Level
TTL
TTL
TTL
—
GND
+3.3V
—
—
TTL
TTL
+3.3V
—
—
—
—
GND
+3.3V
—
—
—
—
—
—
+3.3V
GND
+3.3V
High-Speed
High-Speed
+3.3V
GND
+3.3V
—
—
—
+3.3V
GND
+3.3V
Description
Selectable input rate, pin 0
Selectable input rate, pin 1
Toggle between REFCK1 and REFCK0
No connect, leave unconnected
Negative power supply pins for analog parts of CMU
Positive power supply pins for analog parts of CMU
No connect, leave unconnected(1)
No connect, leave unconnected(1)
Loss of Lock indication
No reference output. Active HIGH for REFCK far off the
expected frequency.
Positive power supply
Loop filter pin - connect via capacitor to FILTAI
Loop filter pin - connect via capacitor to FILTAO
Loop filter pin - connect via capacitor to FILTAON
Loop filter pin - connect via capacitor to FILTAIN
Negative power supply
Positive power supply
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
Positive power supply
Negative power supply
Positive power supply
High-speed clock output, complement.
High-speed clock output, true.
Positive power supply
Negative power supply
Positive power supply
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
Positive power supply
Negative power supply
Positive power supply
G52300-0, Rev 4.1
03/01/01
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
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