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Peregrine Semiconductor

PE43502 Datasheet Preview

PE43502 Datasheet

RF Digital Attenuator

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Product Description
The PE43502 is a HaRP-enhanced, high linearity, 5-bit RF
Digital Step Attenuator (DSA). This highly versatile DSA
covers a 15.5 dB attenuation range in 0.5 dB steps. The
Peregrine 50RF DSA provides multiple CMOS control
interfaces. 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 4x4 mm 24-lead QFN footprint.
The PE43502 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 Photo
24-lead 4x4x0.85 mm QFN Package
Product Specification
PE43502
50 RF Digital Attenuator
5-bit, 15.5 dB, 9 kHz - 6 GHz
Features
 HaRP™-enhanced UltraCMOS™ device
 Attenuation: 0.5 dB steps to 15.5-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
 High-attenuation state @ power-up (PUP)
 CMOS Compatible
 No DC blocking capacitors required
 Packaged in a 24-lead 4x4x0.85 mm QFN
Figure 2. Functional Schematic Diagram
RF Input
Switched Attenuator Array
Parallel Control 5
Serial In
CLK
LE
Control Logic Interface
P/S
RF Output
Document No. 70-0247-06 www.psemi.com
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
Page 1 of 11




Peregrine Semiconductor

PE43502 Datasheet Preview

PE43502 Datasheet

RF Digital Attenuator

No Preview Available !

PE43502
Product Specification
Table 1. Electrical Specifications @ +25°C, VDD = 3.3 V or 5.0 V
Parameter
Test Conditions
Frequency
Frequency Range
Attenuation Range
0.5 dB Step
Insertion Loss
9 kHz 6 GHz
Attenuation Error
0 dB - 15.5 dB Attenuation settings
0 dB - 7.5 dB Attenuation settings
8 dB - 15.5 dB Attenuation settings
0 dB - 15.5 dB Attenuation settings
9 kHz < 4 GHz
4 GHz 6 GHz
4 GHz 6 GHz
4 GHz 6 GHz
Return Loss
9 kHz - 6 GHz
Relative Phase
All States
9 kHz - 6 GHz
P1dB (note 1)
Input
20 MHz - 6 GHz
IIP3 Two tones at +18 dBm, 20 MHz spacing 20 MHz - 6 GHz
Typical Spurious Value
1 MHz
Video Feed Through
Switching Time
50% DC CTRL to 10% / 90% RF
RF Trise/Tfall
Settling Time
10% / 90% RF
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 – 15.5
2.4
17
18
32
58
-110
10
650
400
4
Max
6 GHz
2.9
±(0.3 + 3%)
+0.4 + 4%
+0.6 + 8%
-0.2 - 3%
Units
dB
dB
dB
dB
dB
dB
dB
deg
dBm
dBm
dBm
mVpp
ns
ns
µs
Performance Plots
Figure 3. 0.5dB Step Error vs. Frequency*
200MHz
900MHz
1800MHz
2200MHz
3000MHz
4000MHz
5000MHz
6000MHz
1.5
1
0.5
0
-0.5
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Attenuation Setting (dB)
*Monotonicity is held so long as Step-Error does not cross below -0.5
Figure 4. 1dB Attenuation vs. Attenuation State
Attenuation
35
30 900 MHz
2200 MHz
25
3800 MHz
5800 MHz
20
15
10
5
0
0 5 10 15 20 25 30 35
Attenuation State
Figure 5. 0.5dB Major State Bit Error
Figure 6. 0.5dB Attenuation Error vs. Frequency
0.5 dB State
1dB State
2dB State
2
4dB State
8dB State
15.5dB State
200MHz
900MHz
1800MHz
2200MHz
3000MHz
4000MHz
5000MHz
6000MHz
2
1.5 1.5
11
0.5 0.5
00
-0.5 -0.5
-1 -1
-1.5 -1.5
-2
0
1000
2000
3000
4000
5000
6000
Frequency (GHz)
-2
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Attenuation Setting (dB)
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0247-06 UltraCMOS™ RFIC Solutions
Page 2 of 11
Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com


Part Number PE43502
Description RF Digital Attenuator
Maker Peregrine Semiconductor
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PE43502 Datasheet PDF






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