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Peregrine Semiconductor

PE43503 Datasheet Preview

PE43503 Datasheet

RF Digital Attenuator

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Product Description
The PE43503 is a HaRP-enhanced, high linearity, 5-bit RF
Digital Step Attenuator (DSA) covering a 31 dB attenuation
range in 1 dB steps. The Peregrine 50RF DSA provides a
serial 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 4x4 mm 24-lead
QFN footprint.
The PE43503 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
24-lead 4x4x0.85 mm QFN Package
Product Specification
PE43503
50 RF Digital Attenuator
5-bit, 31 dB, 9 kHz - 6.0 GHz
Features
HaRP™-enhanced UltraCMOS™ device
Attenuation: 1 dB steps to 31 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
Switched Attenuator Array
RF Input
RF Output
Parallel Control 5
Serial In
CLK
LE
Control Logic Interface
A0 A1
Document No. 70-0252-05 www.psemi.com
A2
P/S
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 11




Peregrine Semiconductor

PE43503 Datasheet Preview

PE43503 Datasheet

RF Digital Attenuator

No Preview Available !

PE43503
Product Specification
Table 1. Electrical Specifications @ +25°C, VDD = 3.3 V or 5.0 V
Parameter
Frequency Range
Attenuation Range
Insertion Loss
Attenuation Error
Relative Phase
P1dB (note 1)
Input IP3
Return Loss
Test Conditions
1 dB Step
0dB - 31dB Attenuation settings
0dB - 21dB Attenuation settings
22dB - 31dB Attenuation settings
0dB - 31dB Attenuation settings
All States
Input
Two tones at +18 dBm, 20 MHz spacing
Frequency
9 kHz 6 GHz
9 kHz 4 GHz
4 GHz 6 GHz
4 GHz 6 GHz
4 GHz 6 GHz
9 kHz 6 GHz
20 MHz - 6 GHz
20 MHz – 6 GHz
DC 6 GHz
Switching Speed
50% DC CTRL to 10% / 90% RF
Typical Spurious Value
Video Feed Through
1 MHz
RF Trise/Tfall
10% / 90% RF
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 – 31
2.4
72
32
+58
17
650
-115
10
400
4
Max.
6 GHz
2.9
±(0.3+3%)
+0.4+9%
+2.4+0%
-0.2-3%
Units
dB
dB
dB
dB
dB
dB
°
dBm
dBm
dB
ns
dBm
mVpp
ns
µs
Performance Plots
Figure 3. 1dB Step Error vs. Frequency *
200MHz
3000MHz
2
900MHz
4000MHz
1800MHz
5000MHz
2200MHz
6000MHz
1
0
-1
0 4 8 12 16 20 24 28 32
Attenuation Setting (dB)
*Monotonicity is held so long as Step-Error does not cross below -1
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. 1dB Major State Bit Error
1dB State
2dB State
4dB State
8dB State
16dB State
31dB State
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
0
1000
2000
3000
4000
5000
Frequency (GHz)
6000
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 2 of 11
Figure 6. 1dB Attenuation Error vs. Frequency
200MHz
900MHz
1800MHz
2200MHz
3000MHz
4000MHz
5000MHz
6000MHz
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
0 4 8 12 16 20 24 28 32
Attenuation Setting (dB)
Document No. 70-0252-05 UltraCMOS™ RFIC Solutions


Part Number PE43503
Description RF Digital Attenuator
Maker Peregrine Semiconductor
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PE43503 Datasheet PDF






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