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Peregrine Semiconductor

PE43601 Datasheet Preview

PE43601 Datasheet

RF Digital Attenuator

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Product Description
The PE43601 is a HaRP-enhanced, high linearity, 6-bit RF
Digital Step Attenuator (DSA). This highly versatile DSA
covers a 15.75 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 PE43601 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
PE43601
50 RF Digital Attenuator
6-bit, 15.75 dB, 9 kHz - 6.0 GHz
Features
HaRP™-enhanced UltraCMOS™ device
Attenuation: 0.25 dB steps to 15.75 dB
High Linearity: Typical +58 dBm IIP3
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
Serial Two-Byte Protocol: Address and
Data Word
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 6
Serial In
CLK
LE
Control Logic Interface
A0 A1
Document No. 70-0253-05 www.psemi.com
A2
P/S
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 13




Peregrine Semiconductor

PE43601 Datasheet Preview

PE43601 Datasheet

RF Digital Attenuator

No Preview Available !

PE43601
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
0 dB - 15.75 dB Attenuation settings
0 dB - 15.75 dB Attenuation settings
9 kHz < 4 GHz
4 GHz 6 GHz
Return Loss
Relative Phase
P1dB (note 1)
IIP3
Typical Spurious Value
All States
Input
Two tones at +18 dBm, 20 MHz spacing
9 kHz - 6 GHz
9 kHz - 6 GHz
20 MHz - 6 GHz
20 MHz - 6 GHz
1 MHz
Video Feed Through
Switching Time
RF Trise/Tfall
50% CTRL to 10% / 90% RF
10% / 90% RF
Settling Time
RF settled to within 0.05 dB of final value
RBW = 5 MHz, Averaging ON.
Min
9 kHz
30
Typical
0 – 15.75
2.3
18
20
32
57
-110
10
650
400
Max
6 GHz
2.8
±(0.2 + 4%)
±(0.4 + 8%)
Units
dB
dB
dB
dB
dB
deg
dBm
dBm
dBm
mVpp
ns
ns
4 µs
Note 1. Please note Maximum Operating Pin (50) of +23dBm as shown in Table 3.
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
0
4 8 12
Attenuation Setting (dB)
16
*Monotonicity is held so long as step-error does not cross below -0.25
Figure 4. 0.25dB Attenuation vs. Attenuation
State
Attenuation
16
15
14
13
12
11
900 MHz
2200 MHz
3800 MHz
5800 MHz
10
9
8
7
6
5
4
3
2
1
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Attenuation State
Figure 5. 0.25 dB Major State Bit Error
Figure 6. 0.25 dB Attenuation Error vs. Frequency
0.25dB State
0.5dB State
1dB State
2dB State
4dB State
1.5
8dB State
15.75dB State
1.0
0.5
0.0
-0.5
-1.0
-1.5
0
1000
2000
3000
Frequency (MHz)
4000
5000
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 2 of 13
6000
200 MHz
900 MHz
1800 MHz
2200 MHZ
3000 MHz
4000 MHz
5000 MHz
6000 MHz
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
0
4 8 12
Attenuation Setting (dB)
16
Document No. 70-0253-05 UltraCMOS™ RFIC Solutions


Part Number PE43601
Description RF Digital Attenuator
Maker Peregrine Semiconductor
Total Page 13 Pages
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