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Product Specification
PE4302
50 Ω RF Digital Attenuator
6-bit, 31.5 dB, DC – 4.0 GHz
Product Description
The PE4302 is a high linearity, 6-bit RF Digital Step Attenuator
(DSA) covering a 31.5 dB attenuation range in 0.5 dB steps.
This 50-ohm RF DSA provides both parallel and serial CMOS
control interface operates on a single 3-volt supply and
maintains high attenuation accuracy over frequency and
temperature. It also has a unique control interface that allows
the user to select an initial attenuation state at power-up. The
PE4302 exhibits very low insertion loss and low power
consumption. This functionality is delivered in a 4x4 mm QFN
footprint.
Features
 Attenuation: 0.5 dB steps to 31.5 dB
The PE4302 is manufactured on Peregrine’s UltraCMOS™
process, a patented variation of silicon-on-insulator (SOI)
technology on a sapphire substrate, offering the performance
of GaAs with the economy and integration of conventional
CMOS.
 Single-supply operation
Figure 1. Functional Schematic Diagram
Figure 2. Package Type
 Flexible parallel and serial programming
interfaces
T
43
E
 Unique power-up state selection
 Positive CMOS control logic
 High attenuation accuracy and linearity
over temperature and frequency
12
 Very low power consumption
LE
 50 Ω impedance
 Packaged in a 20 lead 4x4mm QFN
3
Control Logic Interface
Power-Up Control
2
W
IT
Serial Control
RF Output
H
6
BS
Parallel Control
O
RF Input
PE
4x4 mm 20-Lead QFN
Switched Attenuator Array
Table 1. Electrical Specifications @ +25°C, VDD = 3.0 V
O
L
Operation Frequency
Test Conditions
Insertion Loss2
Attenuation Accuracy
1 dB Compression3
Input IP31,2
Any Bit or Bit
Combination
Two-tone inputs
+18 dBm
EP
Return Loss
Switching Speed
Frequency
AC
E
Parameter
50% control to 0.5 dB
of final value
Minimum
Typical
Maximum
Units
4000
MHz
DC - 2.2 GHz
DC
-
1.5
1.75
dB
DC ≤1.0 GHz
1.0 < 2.2 GHz
-
-
±(0.10 + 3% of atten setting)
±(0.15 + 5% of atten setting)
dB
dB
1 MHz - 2.2 GHz
30