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Peregrine Semiconductor

PE43501 Datasheet Preview

PE43501 Datasheet

RF Digital Attenuator

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Product Description
The PE43501 is a HaRP-enhanced, high linearity, 5-bit RF
Digital Step Attenuator (DSA). This highly versatile DSA
covers a 7.75 dB attenuation range in 0.25 dB steps. The
Peregrine 50RF DSA provides a serial-addressable CMOS
control interface. It maintains high attenuation accuracy over
frequency and temperature and exhibits very low insertion loss
and low power consumption. Performance does not change
with VDD due to on-board regulator. This next generation
Peregrine DSA is available in a 5x5 mm 32-lead QFN footprint.
The PE43501 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. Package Type
32-lead 5x5x0.85 mm QFN Package
Product Specification
PE43501
50 RF Digital Attenuator
5-bit, 7.75 dB, 9 kHz - 6.0 GHz
Features
HaRP™-enhanced UltraCMOS™ device
Attenuation: 0.25 dB steps to 7.75 dB
High Linearity: Typical +58 dBm IP3
Excellent low-frequency performance
3.3 V or 5.0 V Power Supply Voltage
Fast switch settling time
Programming Modes:
Direct Parallel
Latched Parallel
Serial-Addressable: Program up to
eight addresses 000 - 111
High-attenuation state @ power-up (PUP)
CMOS Compatible
No DC blocking capacitors required
Packaged in a 32-lead 5x5x0.85 mm QFN
Figure 2. Functional Schematic Diagram
RF Input
Switched Attenuator Array
RF Output
Parallel Control 5
Serial In
CLK
LE
Control Logic Interface
A0 A1 A2 P/S
Document No. 70-0251-05 www.psemi.com
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 13
Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com




Peregrine Semiconductor

PE43501 Datasheet Preview

PE43501 Datasheet

RF Digital Attenuator

No Preview Available !

PE43501
Product Specification
Table 1. Electrical Specifications @ +25°C, VDD = 3.3 V or 5.0 V
Parameter
Test Conditions
Frequency
Frequency Range
Attenuation Range
Insertion Loss
0.25 dB Step
9 kHz 6 GHz
Attenuation Error
Return Loss
Relative Phase
P1dB (note 1)
IIP3
Typical Spurious Value
Video Feed Through
Switching Time
RF Trise/Tfall
0 dB - 7.75 dB Attenuation settings
0dB to 3.5 dB Attenuation Settings
3.75 dB to 7.75 dB Attenuation Settings
0dB to 7.75dB Attenuation Settings
All States
Input
Two tones at +18 dBm, 20 MHz spacing
50% CTRL to 10% / 90% RF
10% / 90% RF
9 kHz < 4 GHz
4 GHz 6 GHz
4 GHz 6 GHz
4 GHz 6 GHz
9 kHz - 6 GHz
9 kHz - 6 GHz
20 MHz - 6 GHz
20 MHz - 6 GHz
1 MHz
Settling Time
RF settled to within 0.05 dB of final value
RBW = 5 MHz, Averaging ON.
Note: 1. Please note Maximum Operating Pin (50) of +23dBm as shown in Table 3.
Min
9 kHz
30
Typical
0 – 7.75
2.3
18
9
32
58
-110
10
650
400
4
Max
6 GHz
2.8
±(0.15+4%)
+0.2+4%
+0.3+4%
-0.2 - 4%
Units
dB
dB
dB
dB
dB
dB
dB
deg
dBm
dBm
dBm
mVpp
ns
ns
µs
Performance Plots
Figure 3. 0.25 dB Step Error vs. Frequency*
1.00
200 MHz
3000 MHz
900 MHz
4000 MHz
1800 MHz
5000 MHz
2200 MHz
6000 MHz
0.75
0.50
0.25
0.00
-0.25
012345678
Attenuation Setting (dB)
*Monotonicity is held so long as Step-Error does not cross below -0.25
Figure 4. 0.25dB Attenuation vs. Attenuation
State
Attenuation
8
900 MHz
7 1800 MHz
2200 MHz
6 3000 MHz
5400 MHz
5 5800 MHz
4
3
2
1
0
012345678
Attenuation State
Figure 5. 0.25 dB Major State Bit Error
0.25dB State
0.5dB State
1dB State
2dB State
4dB State
7.75dB State
1.5
Figure 6. 0.25 dB Attenuation Error vs. Frequency
200 MHz
900 MHz
1800 MHz
2200 MHZ
3000 MHz
4000 MHz
5000 MHz
6000 MHz
1.5
1.0 1.0
0.5 0.5
0.0 0.0
-0.5 -0.5
-1.0 -1.0
-1.5
0
1000
2000
3000
4000
Frequency (MHz)
5000
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
6000
-1.5
0123 45 678
Attenuation Setting (dB)
Document No. 70-0251-05 UltraCMOS™ RFIC Solutions
Page 2 of 13
Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com


Part Number PE43501
Description RF Digital Attenuator
Maker Peregrine Semiconductor
Total Page 13 Pages
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