PE4307_14 Datasheet, PDF (1/11 Pages) Peregrine Semiconductor – 75Ω RF Digital Attenuator

Product Description
The PE4307 is a high linearity, 5-bit RF Digital Step
Attenuator (DSA) covering a 15.5 dB attenuation range in
0.5 dB steps. The device is pin compatible with the PE430x
series. This 75-ohm RF DSA provides both parallel (latched
or direct mode) 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 PE4307 exhibits
very low insertion loss and low power consumption. This
functionality is delivered in a 4x4 mm QFN footprint.
The PE4307 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.
Figure 1. Functional Schematic Diagram
Switched Attenuator Array
RF Input
RF Output
Product Specification
PE4307
75Ω RF Digital Attenuator
5-bit, 15.5 dB, 1 – 2000 MHz
Features
 Attenuation: 0.5 dB steps to 15.5 dB
 Flexible parallel and serial programming
interfaces
 Latched or direct mode
 Unique power-up state selection
 Positive CMOS control logic
 High attenuation accuracy and linearity
over temperature and frequency
 Very low power consumption
 Single-supply operation
 75Ω impedance
 Pin compatible with PE430x series
 Packaged in a 20-lead 4x4 mm QFN
Figure 2. Package Type
20-lead 4x4 mm QFN
Parallel Control 5
Serial Control ³
Power-Up Control ¹
Control Logic Interface
71-0007
Table 1. Electrical Specifications @ +25°C, V_DD = 3.0V
Parameter
Test Condition
Frequency
Minimum Typical
Maximum
Unit
Operation Frequency
1
2000
MHz
Insertion Loss¹
1 MHz ≤ 1.2 GHz
-
Attenuation Accuracy
Any Bit or Bit
Combination
1 MHz ≤ 1.2 GHz
-
1 dB Compression^3,4
1 MHz ≤ 1.2 GHz
30
Input IP3^1,2,4
Two-tone inputs up to
+18 dBm
1 MHz ≤ 1.2 GHz
-
Return Loss
Zo = 75 ohms
1 MHz ≤ 1.2 GHz
10
Switching Speed
50% control to 0.5 dB
of final value
-
Notes: 1. Device Linearity will begin to degrade below 1 MHz
2. Max input rating in Table 3 & Figures on Pages 4 to 6 for data across frequency
3. Note Absolute Maximum in Table 3
4. Measured in a 50Ω system
1.4
1.95
dB
-
±(0.15 + 4% of atten setting)
dB
Not to exceed +0.25 dB
dB
34
-
dBm
52
-
dBm
13
-
dB
-
1
s
Document No. 70-0161-05 │ www.psemi.com
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Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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