GB4600 Datasheet, PDF (1/4 Pages) Gennum Corporation – Monolithic Unity Gain Video Buffer

FEATURES
• wideband, unity gain, stable operation
(± 0.1 dB at 100 MHz when C_L = 27 pF)
(full power BW = 120 MHz when C_L = 47 pF).
• selectable high and low current operating
modes (I _L = 10 mA or I_L = 20 mA)
• drives high capacitance loads (C_L = 180 pF)
to 70 MHz at -3 dB.
• extremely low differential phase and gain
• convenient 8 pin SOIC packaging
• 100 mW disabled power consumption
FUNCTIONAL BLOCK DIAGRAM
INPUT
VIDEO
SWITCH
OUTPUT
ENABLE
ENABLE
CURRENT SET
I-SET
GB4600 Monolithic
Unity Gain Video Buffer
DATA SHEET
DESCRIPTION
The GB4600 is a high performance, monolithic unity gain
video buffer made on Gennum's proprietary LSI process.
The device features a stable wideband topology capable
of driving high capacitance video busses.
Optimal system power/bandwidth can be achieved by
using the high/low current mode select (I-SET). In addition,
the GB4600 can be disabled by taking the ENABLE pin to
ground. The ENABLE input is TTL and 5 V CMOS compatible.
The GB4600 operates from ± 4.5 to ± 5.5 V power supplies
and typically draws 30 mA of current when I -SET is not
connected. The supply current drops by approximately
50% when I -SET is directly connected to V_EE.
A typical application for the GB4600 is interfacing Gennum's
wide range of video crosspoint switches. The 8 pin SOIC
packaging is ideally suited for space restricted board
layouts.
APPLICATIONS
• Input and output buffering in wide crosspoint matrices
• Inter-board video signal buffering
• Inter-system video signal buffering
AVAILABLE PACKAGING
8 pin SOIC
PIN CONNECTIONS
ENABLE
11
V_EE
22
V_CC
3³
OUTPUT 44
8⁵
GND
76
INPUT
6₇ NC
58
I-SET
ORDERING INFORMATION
Part Number
GB4600-CKA
Package Temperature Range
8 SOIC
0° to 70°C
Revision Date: February 2003
Document No. 13421 - 5
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]