PE43073 Datasheet PDF - Peregrine Semiconductor

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PE43073
Peregrine Semiconductor

Part Number PE43073
Description RF Digital Attenuator
Page 15 Pages


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Product Description
The PE43703 is a HaRP-enhanced, high linearity, 7-bit RF
Digital Step Attenuator (DSA). This highly versatile DSA
covers a 31.75 dB attenuation range in 0.25 dB, 0.5 dB, or 1.0
dB steps. The customer can choose which step size and
associated specifications are best suited for their application.
The Peregrine 50RF DSA provides multiple CMOS control
interfaces and an optional external Vss feature. 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 PE43703 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
PE43703
50 RF Digital Attenuator
7-bit, 31.75 dB, DC-6.0 GHz, VssEXT option
Features
HaRP™-enhanced UltraCMOS™ device
Attenuation options: 0.25 dB, 0.5 dB, or
1.0 dB steps to 31.75 dB
0.25 dB monotonicity for 4.0 GHz
0.5 dB monotonicity for 5.0 GHz
1 dB monotonicity for 6.0 GHz
High Linearity: Typical +59 dBm IIP3
Excellent low-frequency performance
Optional External Vss Control (VssEXT)
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
Figure 2. Functional Schematic Diagram
RF Input
Switched Attenuator Array
RF Output
Parallel Control 7
Serial In
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CLK
LE
Control Logic Interface
A0 A1 A2
Document No. 70-0245-04 www.psemi.com
(optional)
P/S VssEXT
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 15



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PE43703
Product Specification
Table 1. Electrical Specifications: 0.25 dB steps @ +25°C, VDD = 3.3 V or 5.0 V, VssEXT = -2.7 V or GND
Parameter
Test Conditions
Frequency Min Typical Max Units
Frequency Range
Attenuation Range
0.25 dB Step
Insertion Loss
Attenuation Error
Return Loss
0 dB - 7.75 dB Attenuation settings
8 dB - 31.75 dB Attenuation settings
0 dB - 31.75 dB Attenuation settings
Relative Phase
All States
P1dB
Input
IIP3 Two tones at +18 dBm, 20 MHz spacing
Typical Spurious Value1 VssEXT grounded
Video Feed Through
DC – 4
GHz
0 – 31.75
dB
DC 4 GHz
DC < 3 GHz
DC < 3 GHz
3 GHz 4 GHz
DC - 4 GHz
1.9 2.4 dB
±(0.2+1.5%)
±(0.15+4%)
±(0.25+4.5%)
dB
dB
dB
18 dB
DC - 4 GHz
44
deg
20 MHz - 4 GHz
30
32
dBm
20 MHz - 4 GHz
59
dBm
1MHz
-110
dBm
10 mVpp
Switching Time
50% DC CTRL to 10% / 90% RF
650 ns
RF Trise/Tfall
10% / 90% RF
400 ns
Settling Time
RF settled to within 0.05 dB of final value.
RBW = 5 MHz, Averaging ON.
4 25 µs
Note: 1. To prevent negative voltage generator spurs, supply –2.7 volts to VssEXT.
Performance Plots, 0.25 dB state
Figure 3. 0.25 dB Step Error vs. Frequency*
0.500
200 MHz
2200 MHz
900 MHz
3000 MHz
1800 MHz
0.400
Figure 4. 0.25dB Attenuation vs. Attenuation State
0.25-dB PE43701 Attenuation
35
900 MHz
30 1800 MHz
2200 MHz
25 3000 MHz
0.300
20
0.200
0.100
15
10
5
0.000
0.0 4.0 8.0 12.0 16.0 20.0 24.0 28.0 32.0
Attenuation Setting (dB.)
*Monotonicity is held so long as Step-Error does not cross zero
0
0
5 10 15 20 25 30 35
AAtttetennuuaattiioonnSStattaete
Figure 5. 0.25 dB Major State Bit Error
2.00
0.25dB State
4dB State
0.5 dB State
8dB State
1dB State
16dB State
1.50
1.00
ww0.w50.DataSheet4U.com
0.00
-0.50
-1.00
-1.50
-2.00
0.0
1.0 2.0
Frequency (GHz)
2dB State
31.75dB State
3.0
4.0
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 2 of 15
Figure 6. 0.25 dB Attenuation Error vs. Frequency
1.500
200 MHz
2200 MHZ
900 MHz
3000 MHz
1800 MHz
4000 MHz
1.000
0.500
0.000
-0.500
-1.000
-1.500
0.0 4.0 8.0 12.0 16.0 20.0 24.0 28.0 32.0
Attenuation Setting (dB.)
Document No. 70-0245-04 UltraCMOS™ RFIC Solutions



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PE43703
Product Specification
Table 2. Electrical Specifications: 0.5 dB steps @ +25°C, VDD = 3.3 V or 5.0 V, VssEXT = -2.7 V or GND
Parameter
Test Conditions
Frequency
Min Typical Max
Units
Frequency Range
DC – 5
GHz
Attenuation Range
0.5 dB Step
0 – 31.5
dB
Insertion Loss
Attenuation Error
Return Loss
0 dB - 31.5 dB Attenuation settings
0 dB - 16.5 dB Attenuation settings
17 dB - 31.5 dB Attenuation settings
DC 5 GHz
DC < 4 GHz
4 5 GHz
4 5 GHz
DC - 5 GHz
2.0 2.6 dB
±(0.25+4.5%)
±(0.3+5%)
±(1.3+0%)
dB
dB
dB
18 dB
Relative Phase
All States
DC - 5 GHz
56 deg
P1dB
Input
20 MHz - 5 GHz 30 32
dBm
IIP3
Two tones at +18 dBm, 20 MHz spacing
20 MHz - 5 GHz
57
dBm
Typical Spurious Value1 VssEXT grounded
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. To prevent negative voltage generator spurs, supply –2.7 volts to VssEXT.
-110
10
650
400
4
dBm
mVpp
ns
ns
25 µs
Performance Plots, 0.5 dB state
Figure 7. 0.5 dB Step-Error vs. Frequency*
1.000
200 MHz
3000 MHz
900 MHz
4000 MHz
1800 MHz
5000 MHz
2200 MHz
0.750
0.500
0.250
0.000
0.0 4.0 8.0 12.0 16.0 20.0 24.0 28.0 32.0
Attenuation Se tting (dB.)
*Monotonicity is held so long as Step-Error does not cross zero
Figure 9. 0.5 dB Major State Bit Error
Figure 8. 0.5 dB Attenuation vs. Attenuation State
0.5-dB PE43703 Attenuation
35
30 900 MHz
2200 MHz
25
3800 MHz
5000 MHz
20
15
10
5
0
0 5 10 15 20 25 30 35
AtAtettennuuaattiioonn SStattaete
Figure 10. 0.5 dB Attenuation Error vs. Frequency
0.5dB State
8dB State
2.00
1dB State
16dB State
2dB State
31.5dB State
1.50
1.00
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0.50
0.00
-0.50
-1.00
-1.50
-2.00
0.0 1.0 2.0 3.0
Frequency (GHz)
Document No. 70-0245-04 www.psemi.com
4.0
4dB State
5.0
1.500
200 MHz
3000 MHz
900 MHz
4000 MHz
1800 MHz
5000 MHz
2200 MHz
1.000
0.500
0.000
-0.500
-1.000
-1.500
0.0 4.0 8.0 12.0 16.0 20.0 24.0 28.0 32.0
Atte nuation Setting (dB.)
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 3 of 15



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PE43703
Product Specification
Table 3. Electrical Specifications: 1 dB steps @ +25°C, VDD = 3.3 V or 5.0 V, VssEXT = -2.7 V or GND
Parameter
Frequency range
Attenuation Range
1 dB Step
Test Conditions
Frequency
Min Typical
DC – 6
0 - 31
Max
Units
GHz
dB
Insertion Loss
DC 6 GHz
2.3 2.8 dB
Attenuation Error
0 dB - 31 dB Attenuation settings
0 dB - 12 dB Attenuation settings
13 dB - 31 dB Attenuation setting
0 dB - 31 dB Attenuation settings
DC – 4 GHz
4 GHz 6 GHz
4 GHz 6 GHz
4 GHz 6 GHz
±(0.25+4.5%)
+0.4+8%
+1.4+0%
-0.2-3%
dB
dB
dB
dB
Return Loss
DC - 6 GHz
18 dB
Relative Phase
All States
DC - 6 GHz
74 deg
P1dB
Input
20 MHz - 6 GHz
30
32
dBm
IIP3
Two tones at +18 dBm, 20 MHz spacing
20 MHz - 6 GHz
53
dBm
Typical Spurious Value1 VssEXT grounded
1 MHz
-110
dBm
Video Feed Through
10 mVpp
Switching Time
50% DC CTRL to 10% / 90% RF
650 ns
RF Trise/Tfall
10% / 90% RF
400 ns
Settling Time
RF settled to within 0.05 dB of final value.
RBW = 5 MHz, Averaging ON.
4 25 µs
Note: 1. To prevent negative voltage generator spurs, supply –2.7 volts to VssEXT.
Performance Plots, 1 dB state
Figure 11. 1 dB Step-Error vs. Frequency*
2.000
200 MHz
3000 MHz
900 MHz
4000 MHz
1800 MHz
5000 MHz
2200 MHz
6000 MHz
1.750
1.500
1.250
1.000
0.750
0.500
0.250
0.000
0.0 4.0 8.0 12.0 16.0 20.0 24.0 28.0 32.0
Attenuation Setting (dB.)
*Monotonicity is held so long as Step-Error does not cross zero
Figure 13. 1 dB Major State Bit Error
2.00
1dB State
8dB State
2dB State
16dB State
4dB State
31dB State
1.50
1.00
0.50
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0.00
-0.50
-1.00
-1.50
-2.00
0.0 1.0 2.0 3.0 4.0 5.0
Frequency (GHz)
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 4 of 15
6.0
Figure 12. 1 dB Attenuation vs Attenuation State
1-dB PE43703 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
AtAtettennuuaattiioonn SStattaete
Figure 14. 1dB Attenuation Error vs. Frequency
1.500
200 MHz
900 MHz
1800 MHz
2200 MHz
1.000
0.500
0.000
-0.500
-1.000
-1.500
0.0 4.0 8.0 12.0 16.0 20.0 24.0 28.0 32.0
Attenuation Setting (dB.)
Document No. 70-0245-04 UltraCMOS™ RFIC Solutions



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