vsc8169 Vitesse Semiconductor Corp, vsc8169 Datasheet - Page 8

• Manufacturer Part Number: vsc8169
• Description: Oc-48 Fec 16 1 Sonet/sdh Mux With Clock Generator
• Manufacturer: Vitesse Semiconductor Corp

Page 8
MUX with Clock Generator
OC-48 (FEC) 16:1 SONET/SDH
Table 1: AC Characteristics
Parameters
t
t
t
t
CLK16O
CLKI
RCK
CLKO
CLKO
CLK16O
t
t
Clock Multiplier Performance
T
T
Jitter
DSU
DH
DOR
CLKR
SET
HOLD
DJ
CJ
,t
tol
D
D
, t
DOF
D
PER
CLKF
D
PER
Figure 11: Differential and Single-Ended Input/Output Voltage Measurement
* Differential swing
Differential swing is specified as equal in magnitude to single-ended swing.
Data setup time to the rising
edge of CLK16I+
Data hold time after the rising
edge of CLK16+
DO± rise and fall time
CLK16O± rise and fall times
CLK16O± duty cycle
CLK16I± duty cycle
Reference Clock duty cycle
CLKO duty cycle
CLKO period
CLK16O period
DO setup time with respect to
rising CLKO edge
DO hold time with respect to
rising CLKO edge
Output data jitter
Output clock jitter
Jitter tolerance
Tuning Range
b
a
b
a
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Description
Tel: (800) VITESSE • FAX: [phone] • Email: [e-mail]
) is specified as | b - a | ( or | a - b | ), as is the single-ended swing.
VITESSE
SEMICONDUCTOR CORPORATION
Single
Ended
Swing
Differential
Swing
=
Min
0.75
-100
1.0
—
—
40
30
40
40
—
—
—
—
—
—
—
=
Internet: www.vitesse.com
401.9
Typ
310
6.4
—
—
—
—
—
—
—
—
90
—
—
—
Max
+100
120
250
—
—
60
70
60
60
—
—
—
—
—
4
4
Units
ppm
ns
ns
ps
ps
ps
ns
ps
ps
ps
ps
—
%
%
%
%
20% to 80% into 100 load
See Figure 6
See Figures 3 and 4
Assuming 10% distortion of CLKO
SONET-based 77.76MHz or
155.52MHz reference clock
SONET-based 77.76MHz or
155.52MHz reference clock
Inverting CLKO will switch
(approx) t
Inverting CLKO will switch
(approx) tset and thold values.
rms, tested to SONET specification
(12kHz to 20MHz) with 2ps rms
jitter on REFCLK.
rms, tested to SONET specification
(12kHz to 20MHz) with 2ps rms
jitter on REFCLK.
Exceeds SONET/SDH mask
Preliminary Data Sheet
SET
Conditions
and t
HOLD
VSC8169
values.
G52230-0, Rev 3.6
01/02/01