Analog Devices ADV3221-EVALZ, Руководство пользователя

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ADV3221-EVALZ/ADV3222-EVALZ User Guide
UG-844
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Evaluation Board for the ADV3221 / ADV3222 800 MHz, 4:1 Analog Multiplexers
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 10
FEATURES
Full featured evaluation board for the ADV3221 / ADV3222
Single board with both 50 Ω and 75 Ω termination
±5 V operation
EVALUATION KIT CONTENTS
ADV3221-EVALZ / ADV3222-EVALZ evaluation board
Instruction guide for user guide download
EQUIPMENT NEEDED
Signal source or video pattern generator and signal analyzer
Power supplies (2 V/100 mA and ±5 V/1 A)
BNC-to-SMA connector for inputs and output using the 50 Ω
terminated board
BNC-to-BNC connector for inputs and output using the 75 Ω
terminated board
GENERAL DESCRIPTION
The ADV3221 and ADV3222 are high speed, high slew rate,
buffered, 4:1 analog multiplexers. They offer a −3 dB signal
bandwidth greater than 800 MHz and channel switch times of
less than 20 ns with 1% settling. With lower than −58 dB of
crosstalk and −67 dB isolation (at 100 MHz), the
ADV3221 and
ADV3222 are useful in many high speed applications. The
differential gain error of less than 0.02% and differential phase
error of less than 0.02°, together with 0.1 dB gain flatness out to
100 MHz while driving a 75 Ω back terminated load, make the
ADV3221 and ADV3222 ideal for all types of signal switching.
The ADV3221 / ADV3222 include an output buffer that can be
placed into a high impedance state, which allows multiple
outputs to be connected together for cascading stages without
the off channels loading the output bus. The
ADV3221 has a
gain of +1, and the ADV3222 has a gain of +2; both devices
operate on ±5 V supplies while consuming less than 7.5 mA of
idle current. The channel switching is performed via latched
control lines, allowing synchronous updating in a multiple
ADV3221 / ADV3222 environment.
The ADV3221 / ADV3222 are offered in a 16-lead SOIC package
and are available over the extended industrial temperature range
of −40°C to +85°C.
This user guide provides all of the supporting documentation
for working with the
ADV3221-EVALZ / ADV3222-EVALZ
evaluation board. Additional information is available in the
ADV3221 / ADV3222 data sheet, which should be consulted in
conjunction with this user guide when working with the
evaluation board.
EVALUATION BOARD PHOTOGRAPH AND BLOCK DIAGRAM
LATCH
D Q
LATCH
D
E
CO
DE
D Q
LATCH
D Q
LATCH
D Q
LATCH
D Q
LATCH
D Q
IN0
OUT
ENABLE
CS
A0
A1
CK1
CK2
IN1
IN2
IN3
132
42-
0
01
G = +1
(G = +2)
100k Ω 100k Ω
Figure 1.