GENLINX
™
GS9009A Cable Driver
with Four Adjustable Outputs
DATA SHEET
KEY FEATURES
• two output pairs, adjustable from 0 to 1100mVp-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
• 250 mW power dissipation
• interfaces with GENLINX™ GS9002, GS9004A,
GS9005A and GS9015A
• Pb-free and Green
APPLICATIONS
•
•
•
SMPTE 259M Serial Digital Systems (4:2:2 & 4ƒsc)
Other Serial Digital Video Interfaces — 360Mb/s
General purpose high speed driver applications
DESCRIPTION
The GENLINX™ GS9009A is a bipolar integrated circuit
designed to drive four 75
Ω
co-axial cables at data rates
exceeding 400Mb/s. It directly interfaces with other
GENLINX™ devices and can also be used as a general
purpose high speed cable driver.
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 0mV to as high as 1100mV 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 bandgap reference
voltage V
REF
.
Pinout is compatible with the GS9007A by interchanging
pins 3,4,5,6,9,10,11,12 on the GS9009A with pins
1,2,3,4,5,6,7,8 on the GS9007A. In this way, a layout can be
made for either device depending on whether adjustability
is desired or not.
The GS9009A is packaged in a 14 pin SOIC, and operates
from a single +5 or -5 volt supply consuming typically only
250mW of power.
GS9009A
NOT RECOMMENDED FOR NEW DESIGNS
PIN CONNECTIONS
NC
NC
OUTPUT 1
OUTPUT 1
OUTPUT 2
OUTPUT 2
VSET
1
2
3
4
5
6
7
14
13
12
NC
NC
VCC
INPUT
INPUT
VEE
VREF
GS9009A
11
10
9
8
ORDERING INFORMATION
PART NUMBER
GS9009ACKB
GS9009ACKBE3
PACKAGE TYPE
14 Pin SOIC
14 Pin SOIC
TEMPERATURE RANGE
0° to 70°C
0° to 70°C
Pb-FREE AND GREEN
No
Yes
FUNCTIONAL BLOCK DIAGRAM
GS9009A
V
SET
GAIN
CONTROL
V
CC
(GND)
OUTPUT
DRIVER
INPUT
INPUT
INPUT BUFFER
&
DC RESTORE
OUTPUT 1
OUTPUT 1
OUTPUT
DRIVER
V
REF
BAND-GAP
REFERENCE
OUTPUT 2
OUTPUT 2
GND (V
EE
)
Revision Date: June 2004
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3
Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 E-mail: info@gennum.com
www.gennum.com
Document No. 29782 - 1
GENNUM [ GENNUM CORPORATION ]
