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AT90-1233TR

Description
digital attenuator 30.0 dB, 4-bit, ttl driver, DC-2.5 ghz
File Size145KB,5 Pages
ManufacturerM/A-COM Tech(MACOM)
Websitehttp://www.macom.com
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AT90-1233TR Overview

digital attenuator 30.0 dB, 4-bit, ttl driver, DC-2.5 ghz

AT90-1233
Digital Attenuator
30.0 dB, 4-Bit, TTL Driver, DC-2.5 GHz
Features
Attenuation: 2 dB Steps to 30 dB
Single Positive Supply
Contains Internal DC to DC Converter
Integral TTL Driver
50 Ohm Impedance
Test Boards Available
Tape and Reel Packaging Available
CSP-1 Package
Rev. V8
Functional Schematic
Description
M/A-COM’s AT90-1233 is a GaAs FET 4-Bit digital
attenuator with integral driver. Step size is 2 dB pro-
viding a 30 dB attenuation range. This device is in
an FQFP-N plastic surface mount package. The
AT90-1233 is suited for single supply applications
where accuracy, fast speed, low power consumption
and low costs are required. For dual supply designs
without switching noise, use AT90-0233.
Pin Configuration
3
Pin No.
1
2
3
4
5
6
Function
GND
C16
C8
C4
C2
GND
GND
NC
NC
NC
1
GND
RF1
GND
NC
NC
NC
Pin No.
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Function
NC
NC
V
CC
NC
Cp
NC
Cp
NC
V
EE
2
GND
RF2
GND
NC
1
V
EE
2
NC
V
CC
Ordering Information
Part Number
AT90-1233
AT90-1233TR
AT90-1233-TB
7
8
Package
Bulk Packaging
1000 piece reel
Sample Test Board
9
10
11
12
13
Note: Reference Application Note M513 for reel size
information.
14
15
16
1. Pins 10 and 29 must be isolated.
2. V
EE
is produced internally and requires a .1 µF cap to GND.
Generated noise is typical of switching DC-DC Converters.
3. The exposed pad centered on the package bottom must be
connected to RF and DC ground. (For PQFN Packages)
1
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
India
Tel: +91.80.4155721
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.

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AT90-1233TR AT90-1233 AT90-1233-TB
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