MAAD-008790-000100
Constant Phase Digital Attenuator
32 dB, 2-Bit, TTL Driver, DC-3.0 GHz
Rev. V1
Functional Schematic
Features
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Attenuation: 1.0 dB Steps to 31.0 dB
Phase error: ± 3º Typical at 2 GHz
Low DC Power Consumption
Small Footprint, PQFN Package
Integral TTL Driver
50 ohm Impedance
Test Boards are Available
RoHS* Compliant
Description
M/A-COM's MAAD-008790-000100 is
a
GaAs
pHEMT 5-bit digital attenuator with integral TTL
driver. This attenuator was designed to minimize
phase variation over attenuation. Step size is 1.0 dB
providing a 31.0 dB total attenuation range. This
device is in an PQFN plastic surface mount
package. MAAD-008790-000100 is ideally suited for
use where accuracy, constant phase over attenua-
tion, very low power consumption and low costs are
required.
Pin Configuration1
Pin No.
Function
GND
C4
Pin No.
17
Function
1
2
NC
NC
18
3
C3
19
NC
4
C2
20
NC
5
C1
21
NC
Ordering Information
6
C5
22
NC
7
GND
NC
23
NC
Part Number
Package
8
24
NC
MAAD-008790-000100
Bulk Packaging
9
NC
25
NC
MAAD-008790-0001TR
MAAD-008790-0001TB
1000 piece reel
10
11
12
13
14
15
16
NC2
GND
RF1
GND
NC
26
GND
RF2
GND
NC2
Vee
NC
Sample Test Board
27
28
Note: Reference Application Note M513 for reel size
information.
29
30
NC
31
NC
32
+Vcc
1. The exposed pad centered on the package bottom must be
connected to RF and DC ground. (For PQFN Packages)
2. Pins 10 & 29 must be isolated
* Restrictions on Hazardous Substances, European Union
Directive 2002/95/EC.
1
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
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.
Commitment to produce in volume is not guaranteed.
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
Visit www.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.