VSC8021FC VITESSE [Vitesse Semiconductor Corporation], VSC8021FC Datasheet - Page 4

• Manufacturer Part Number: VSC8021FC
• Description: 2.5Gb/s SONET-Compatible 8-Bit MUX/DEMUX Chipset
• Manufacturer: VITESSE [Vitesse Semiconductor Corporation]

Page 4
2.5Gb/s SONET-Compatible
8-Bit MUX/DEMUX Chipset
VSC8021 Multiplexer AC Characteristics
Table 1: VSC8021 Multiplexer AC Characteristics (over recommended operating conditions)
NOTES: (1) The parts are guaranteed by design to operate from DC to a maximum frequency of 2.5GHz.
Parameter
t
t
t
t
t
t
Jitter (p-p)
C
D
DSU
DH
CMD
BCLK8
(2) Required when SYNC not connected to ERR.
NOTES:
BYCLK (BYCLKN)
High speed differential clock outputs
High speed differential data outputs
Clock period
BYTE clock period (t
Parallel data set-up time
Data hold time
High-speed clock output (CO, CON) timing, falling
edge of CO to muxed data output, (DO, DON) timing
Byte clock to CLK8 timing
CLKI, CLKIN to DO, DON (max-min), (HI to LO),
same part, same pin at constant conditions
High speed differential clock input
D1-D8, D1N-D8N
Parallel differential data inputs
(1) Negative edge is active edge.
(2) BYCLK/CLK8 timing required when SYNC not connected to ERR.
CLKI , CLKIN
Phase adjustable ÷8 output
CLKI (CLKIN)
(1)
CLK8 adjustment input
= Don’t care.
(1)
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CO, CON
(1)
Byte clock input
DO,DON
CLK8
SYNC
period x 8 =
Tel: (800) VITESSE • FAX: [phone] • Email: [e-mail]
Description
D
Figure 3: VSC8021 Multiplexer Waveforms
(2)
= t
VITESSE
SEMICONDUCTOR CORPORATION
C
(2)
BYCLK (BYCLKN)
x 8)
t
DSU
VALID DATA(1)
Internet: www.vitesse.com
t
C
t
period.
DH
Min
400
220
3.2
0.6
1.4
0.5
D01
(Over recommended operating conditions)
t
D
D02
t BCLK8
Typ
<50
1.0
D03
Serialized Byte 1
VSC8021/VSC8022
Max
D04
350
1.5
VALID DATA(2)
D05
Units
ps
ns
ns
ns
ps
ns
ps
D06
D07
t
CMD
D08
Conditions
Data Sheet
G52028-0, Rev 4.1
05/25/01