GS9008 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Cable Driver with Two Adjustable Outputs

GENLINX^™ GS9008 Cable Driver
with Two Adjustable Outputs
DATA SHEET
FEATURES
• two outputs, adjustable from 0 to 1100 mVp-p into
75 Ω loads
• nominal 600 ps rise and fall times
• accepts SMPTE and standard ECL input levels
• operates from a single +5 or -5 volt supply
• on-chip DC restoration for low jitter
• 170 mW power dissipation
• interfaces with GENLINX^™ GS9002, GS9004A,
GS9005A and GS9015A
APPLICATIONS
• SMPTE 259M Serial Digital Systems (4:2:2 & 4ƒsc)
• Other Serial Digital Video Interfaces - 360 Mb/s
• General purpose high speed driver applications
PIN CONNECTIONS
OUTPUT 1
OUTPUT 1
VSET
VREF
1
8
2
7
GS9008
3
6
4
5
VCC
INPUT
INPUT
VEE
ORDERING INFORMATION
Part Number
Package Type
GS9008 - CKA
8 Pin SOIC
Temperature Range
0° to 70°C
DEVICE DESCRIPTION
The GENLINX™ GS9008 is a bipolar integrated circuit
designed to drive two 75 Ω co-axial cables at data rates
exceeding 400 Mb/s. It directly interfaces with other
GENLINX™ devices and can also be used as a general
purpose high speed cable driver.
While there are no plans to discontinue the GS9008, Gennum
has developed a successor product with improved features
and performance called the GS9028. The GS9028 is
recommended for new designs.
The differential inputs are AC-coupled and internally DC-
restored which allows correct passage of pathological
check codes associated with the serial digital standards.
Even though the inputs are AC coupled, static protection
diodes at each input restrict the DC differential so that if the
driving source uses the opposite polarity power supply,
external DC blocking capacitors must be used.
Correctly terminated output signal levels are adjustable
from as low as 0 mV to as high as 1100 mV with little change
in other performance parameters. Performance is guaranteed
for output levels between 600 mV and 1000 mV. The gain
of the output stages is varied by adjusting the V_SET voltage
with respect to an internal band gap reference voltage
V_REF.
The GS9008 is packaged in an 8 pin SOIC, and operates
from a single +5 or -5 volt supply consuming typically only
170 mW of power.
V_SET
GAIN
CONTROL
GS9008
V_CC (GND)
INPUT
INPUT
INPUT BUFFER
&
DC RESTORE
OUTPUT
DRIVER
OUTPUT 1
OUTPUT 1
V_REF
BAND-GAP
REFERENCE
GND (V_EE)
Patent No. 5,426,389.
FUNCTIONAL BLOCK DIAGRAM
Revision Date: April 1998
Document No. 520 - 77 - 04
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. [phone] fax. [phone]
Web Site: www.gennum.com E-mail: [e-mail]