Gennum Corporation GS9007-CKA Datasheet

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Document No. 520 - 29 - 7

DATA SHEET

GENLINX™ GS9007 Quad

Serial Digital Cable Driver

DEVICE DESCRIPTION

The

GENLINX™ GS9007 is a bipolar integrated circuit

designed to drive four 75 Ω co-axial cables with SMPTE
level serial digital video signals 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.

The differential inputs are AC-coupled and internally DC­restored 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.

The GS9007 is packaged in an 8 pin SOIC, and operates
from a single +5 or -5 volt supply consuming typically only
250 mW of power.

APPLICATIONS

4ƒ

SC

, 4:2:2 and 360 Mb/s Serial Digital Interfaces.

FEATURES

• two output pairs (four outputs total) meeting
SMPTE 259M

• nominal 550 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

SERIAL

INPUT

SERIAL

INPUT

V

CC

(GND)

INPUT

BUFFER

& DC

RESTORE

RISE
TIME

CONTROL

V

OUT2

V

OUT2

GND (VEE)

GS9007

6

7

8

1

2

3

4

5

V

OUT1

V

OUT1

PIN CONNECTIONS

SERIAL OUT -1

SERIAL OUT -1

SERIAL OUT -2

SERIAL OUT -2

VCC (GROUND)

GROUND (VEE)

SERIAL INPUT

SERIAL INPUT

1

TOP VIEW

ORDERING INFORMATION

Part Number Package Type Temperature Range

GS9007 - CKA 8 Pin SOIC 0° to 70°C

Revision Date: May 1995

GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. [phone] fax: [phone]

Japan Branch: A-302, Miyamae Village, 2-10-42 Miyamae, Suginami-ku, Tokyo 168, Japan tel. [phone] fax [phone]

FUNCTIONAL BLOCK DIAGRAM

Patent No. 5,426,389.

2

520 - 29 - 7

V

CC

400

400

V

OUT

V

OUT

V

CC

V

CC

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS NOTES

Supply Voltage V

S

Operating Range 4.5 5.0 5.5 V

Power Consumption P

D

4x150Ω Loads DC - 250 290 mW

Supply Current I

S1

1% Accuracy, - 105 110 mA

T

A

= 25

o

C

I

S2

DC No Loads, T

A

= 25

o

C - 17.2 22 mA

GS9007 CABLE DRIVER - DC ELECTRICAL CHARACTERISTICS

VS = 5 V, TA= 0 to 70oC, RL = 150Ω to GND and 143Ω AC coupled unless otherwise shown.

Fig. 1 Input Circuit (Pins 6 and 7)

GS9007 CABLE DRIVER - AC ELECTRICAL CHARACTERISTICS

VS = 5 V, TA= 0 to 70oC, RL = 150Ω to GND and 143Ω AC coupled unless otherwise shown.

SERIAL

DIGITAL

INPUTS

- 0 - % see Figure 4

SERIAL

DIGITAL

OUTPUTS

and 80%

Fig. 2 Output Circuit (Pins 1, 2 and 3, 4)

V

CC

0.5p

SERIAL
INPUTS

400

V

CC

V

REF1

V

REF1 + VREF2

INPUT / OUTPUT CIRCUITS

Propagation t

P

- 1 - ns

Delay

Output
Overshoot

t

R

= tF = 600 ps

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS NOTES

Signal Swing V

IN

700 800 1000 mVp-p

Rise/Fall Times t

R

,

t

F

- - 750 ps measured at 20%
and 80%

Rise/Fall Times t

R

, t

F

400 550 800 ps measured at 20%

Jitter t

J

at 270 Mb/s

- -±25 ps

Signal Swing V

OUT

Across 75 Ω Load 720 800 880 mVp-p