VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
VSC8061/VSC8062
2.5Gb/s 16-Bit
Multiplexer/Demultiplexer Chipset
VSC8061 Multiplexer AC Characteristics
(Over recommended operating range)
Figure 3: VSC8061 Multiplexer Waveforms
t
CLK
High-speed differential clock input
t
D
CLK (CLKN)
CLK16 (CLK16N)
Parallel data clock output
t
DSU
t
DH
D[0:15]
Parallel data inputs
VALID DATA (1)
VALID DATA (2)
DCLK (DCLKN)
Parallel data clock input
t
D
DO (DON)
High-speed differential serial data output
D0
D1 D2 D3 D4
D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15
Serialized Data
NOTE:
=Don’t
care
t
D
Table 1: VSC8061 AC Characteristics
Parameter
t
CLK
t
D
t
DSU
t
DH
t
DC
t
R
, t
F
t
R
, t
F
t
R
, t
F
t
R
, t
F
Clock period
(1)
CLK16, DCLK period (t
CLK
x 16)
Parallel data set-up time with respect to CLK16
falling edge
Data hold time with respect to CLK16 falling
edge
CLK16 duty cycle
DCLK (DCLKN) rise and fall times
D[0:15] rise and fall times
CLK16 (CLK16N) rise and fall times
DO (DON) rise and fall times
0.5
150
Description
Min
400
6.4
2.0
0.5
40
Typ
Max
15.6
Units
ps
ns
ns
ns
Conditions
60
1.5
2.0
1.0
165
%
ns
ns
ns
ps
10% to 90%
10% to 90%
10% to 90%
20% to 80%
NOTE: (1) Devices are guaranteed to operate to a maximum frequency of 2.5GHz.
G52069-0, Rev 4.3
05/11/01
©
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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