MAAD-000523_15 Datasheet, PDF (1/8 Pages) M/A-COM Technology Solutions, Inc. – Digital Attenuator, 6-Bit, Serial / Parallel Control

MAAD-000523
Digital Attenuator, 6-Bit, Serial / Parallel Control
31.5 dB, 0.7 - 6.0 GHz
Rev. V2
Features
 Integrated CMOS/TTL Compatible Driver
 Parallel & Serial (P/S) Control with power-up
state selection
 Insertion Loss: 1.6 dB typical @ 2.1 GHz
 IP3: 50 dBm typical @ 2 GHz
 Attenuation Accuracy:
+/-(0.4 + 4% of attenuation setting) dB
 0.5-dB Attenuation Steps to 31.5 dB
 Useable from 0.4 to 8.0 GHz
 Lead-Free 4 mm 24-Lead PQFN Package
 Halogen-Free ―Green‖ Mold Compound
 RoHS* Compliant and 260°C Re-flow Compatible
 Small Relative Phase Variation per Bit
Description
The MAAD-000523 is a 6-bit, 0.5-dB step GaAs
MMIC digital attenuator in a lead-free 4 mm 24 lead
PQFN surface mount plastic package. This device is
ideally suited for use where high accuracy, very low
power consumption and low intermodulation
products are required. Typical applications include
Cellular Basestation R_X/T_X Line-up, Femtocells, and
other gain / level control circuits.
This attenuator is controlled with either a SPI
compatible serial interface or a 6 bit parallel word.
Ordering Information ¹
Part Number
Package
MAAD-000523-TR1000
1000 piece reel
MAAD-000523-TR3000
3000 piece reel
MAAD-000523-001SMB
Sample Board
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
Functional Schematic ^3,4
24
P/S 1
CLK
SER_IN
LE
GND
RF_IN 6
7
19
18
V_DD
PUP1
PUP2
SER_OUT
N/C
13 RF_OUT
12
3. Blocking capacitors are required on all RF ports.
4. For optimum RF performance all N/C’s should be terminated
to GND.
Pin Configuration
Pin No. Function
1
P/S
2
CLK
3
Serial IN
4
LE
5
Ground
6
RF_IN
7
No Connection
8
No Connection
9
No Connection
10 No Connection
11 No Connection
12 No Connection
Pin No.
13
14
15
16
17
18
19
20
21
22
23
24
Function
RF_OUT
No Connection
Serial OUT
PUP2
PUP1
V_DD
VC16
VC8
VC4
VC2
VC1
VC0.5
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
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