VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
ATM/SONET/SDH 622/155 Mb/s Transceiver Mux/Demux
with Integrated Clock Generation and Clock Recovery
VSC8117
Table 13: PECL and TTL Inputs and Outputs
Parameters
Description
Differential
Min
Typ
Max
Units
Conditions
∆VOUT50
Output Voltage
(PECL)
600
—
1300
mV
50Ω to VDDP – 2.0 V
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
—
2.0
0
—
—
—
—
50
—
—
0.5
V
V
VOH
VOL
VIH
VIL
IIH
IOH = -1.0 mA
Output LOW
voltage (TTL)
IOL = +1.0 mA
Input HIGH
voltage (TTL)
5.5
V
—
—
Input LOW
voltage (TTL)
0.8
V
Input HIGH
current (TTL)
2.0V< VIN < 5.5V,
Typical@2.4V
—
—
500
-500
µA
µA
Input LOW
current (TTL)
IIL
-0.5V < VIN < 0.8V
Power Dissipation
Table 14: Power Supply Currents
Parameter
Description
(Max)
Units
IDD
PD
Power supply current from VDD
Power dissipation (worst case)
480
1.6
mA
W
G52221-0, Rev. 4.1
1/8/00
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 13
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