VSC838UG VITESSE [Vitesse Semiconductor Corporation], VSC838UG Datasheet - Page 10

• Manufacturer Part Number: VSC838UG
• Description: 3.2Gb/s 36x37 Crosspoint Switch
• Manufacturer: VITESSE [Vitesse Semiconductor Corporation]

Page 10
3.2Gb/s
36x37 Crosspoint Switch
Output Termination
TERM_CTRL pin is HIGH. When this pin is LOW, the output driver functions as an open-drain CML driver.
Setting DRIVE_CTRL LOW (GND) saves 1W under maximum power dissipation conditions. See Table 9 for
allowable types of terminations and modes of operation.
Table 9: Allowed High-Speed Output Terminations and Modes of Operation
NOTE: (1) Measured at output of VSC838, with V
Absolute Maximum Ratings
Power Supply Voltage (V
LVTTL Input Voltage Applied ................................................................................................-0.5V to V
ECL Input Voltage Applied ....................................................................................................-0.5V to V
Output Current (I
Case Temperature Under Bias (T
Storage Temperature (T
NOTE: (1) Caution: Stresses listed under “Absolute Maximum Ratings” may be applied to devices one at a time without causing perma-
Operating Conditions
Supply Voltage (V
Supply Voltage (V
Supply Voltage (V
Case Temperature Operating Range (T)..................................................... 0
Type
1
2
3
4
5
6
7
8
The high-speed outputs of the VSC838 are internally back terminated by 50
nent damage. Functionality at or exceeding the values listed is not implied. Exposure to these values for extended periods may
affect device reliability.
AC-coupled to 50 termination to any voltage
AC-coupled to 100 differential termination
DC-coupled, terminated in 50 to V
DC-coupled, terminated in 50 to V
DC-coupled, source and far-end terminated in 50 to V
DC-coupled, source and far-end terminated in 50 to V
DC-coupled, 100 differential termination
DC-coupled, 100 differential termination
OUT
EE
CC
CCP
).......................................................................................................................................... 0V
) ............................................................................................................................+2.5V ±5%
) .................................................................................................................................... 50mA
)...........................................................................................................................+2.5V ±5%
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
STG
CC
) ........................................................................................................ -65
) Potential to GND ..............................................................................-0.5V to +4.0V
Description
Tel: (800) VITESSE • FAX: [phone] • Email: [e-mail]
VITESSE
C
SEMICONDUCTOR CORPORATION
) ............................................................................................. -55
CC
CC
CC
= 2.5V.
at far-end only
at far-end only
(1)
Internet: www.vitesse.com
CC
CC
GND (LOW)
GND (LOW)
GND (LOW)
V
V
V
V
V
DRIVE_
CC
CC
CC
CC
CC
CTRL
(HIGH)
(HIGH)
(HIGH)
(HIGH)
(HIGH)
o
C to 85
Preliminary Data Sheet
GND (OFF)
GND (OFF)
V
V
V
V
V
V
TERM_
CTRL
CC
CC
CC
CC
CC
CC
o
(ON)
(ON)
(ON)
(ON)
(ON)
(ON)
CPackage Pin Descriptions
V
to V
(mV)
1000
OD
500
500
500
250
500
250
500
typ
(1)
o
o
CC
C to + 125
C to + 150
VSC838
when the
G52351-0, Rev 3.0
V
CC
CC
OCM
2.375
2.25
2.25
2.25
(V)
typ
2.0
2.0
2.0
2.0
+1.0V
+0.5V
(1)
o
o
02/12/01
C
C