Digital Step Attenuator
31.5 dB, 0.5 dB Step
6 Bit, Serial Control Interface, Dual Supply Voltage
Product Features
• Dual Supply Voltage: V
DD
=+3V, V
SS
=-3V
• Immune to latch up
• Excellent accuracy, 0.1 dB Typ
• Serial control interface
• Fast Switching control frequency, 1 MHz Typ
• Low Insertion Loss
• High IP3, +52 dBm Typ
• Very low DC power consumption
• Excellent return loss, 20 dB Typ
• Small size 4.0 x 4.0 mm
Typical Applications
• Base Station Infrastructure
• Portable Wireless
• CATV & DBS
• MMDS & Wireless LAN
• Wireless Local Loop
• UNII & Hiper LAN
• Power amplifier distortion canceling loops
75
DC-2000 MHz
DAT-31575-SN+
DAT-31575-SN
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix identifies RoHS Compliance. See our web site for
RoHS Compliance methodologies and qualifications.
General Description
The DAT-31575-SN is a 75 RF digital step attenuator that offers an attenuation range up to 31.5 dB in
0.5 dB steps. The control is a 6-bit serial interface, operating on dual supply voltage: V
DD
=+3V, V
SS
=-3V.
The DAT-31575-SN is produced using a unique CMOS process on silicon, offering the performance of
GaAs, with the advantages of conventional CMOS devices.
Simplified Schematic
RF Input
16dB
8dB
4dB
2dB
1dB
0.5dB
RF Out
Digital Serial Control
REV. C
M112685
DAT-31575-SN
070930
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