VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
ATM/SONET/SDH 622/155Mb/s Transceiver
Mux/Demux with Integrated Clock Generation
VSC8116
AC Characteristics
Table 10: PECL and TTL Outputs
Parameters
Description
Min
Typ
Max
Units
Conditions
10-90%
TR,TTL
TF,TTL
TR,PECL
TF,PECL
TTL Output Rise Time
TTL Output Fall Time
PECL Output Rise Time
PECL Output Fall Time
—
—
—
—
2
—
—
—
—
ns
ns
ps
ps
1.5
350
350
10-90%
20-80%
20-80%
DC Characteristics
Table 11: PECL and TTL Inputs and Outputs
Parameters
Description
Min
Typ
Max
Units
Conditions
Output HIGH
voltage (PECL)
—
—
—
VDDP – 0.9V
—
V
VOH
—
—
Output LOW
voltage (PECL)
0.7
1.1
V
V
VOL
O/P Common
Mode Range
(PECL)
—
—
—
VDDP – 1.3V
1300
VOCM
—
Differential
Output Voltage
(PECL)
600
600
mV
mV
∆VOUT75
75Ω to VDDP – 2.0 V
50Ω to VDDP – 2.0 V
Differential
Output Voltage
(PECL)
1300
∆VOUT50
Input HIGH
voltage (PECL)
VDDP – 0.9V
—
—
—
VDDP – 0.3V
VDDP – 1.72V
1600
V
V
VIH
VIL
For single ended
For single ended
—
Input LOW
voltage (PECL)
0
Differential Input
Voltage (PECL)
400
mV
∆VIN
I/P Common
Mode Range
(PECL)
1.5 – ∆VIN/2
—
VDDP – 1.0 – ∆VIN/2
V
VICM
—
Output HIGH
voltage (TTL)
2.4
—
—
—
V
V
VOH
IOH = -1.0 mA
IOL = +1.0 mA
Output LOW
voltage (TTL)
—
0.5
VOL
G52220-0, Rev 4.1
1/8/00
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 11
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