Product Specification
PE4122
Product Description
The PE4122 is a high linearity, passive Quad MOSFET Mixer
for PCS & 3G Base Station Receivers, exhibiting high dynamic
range performance over a broad LO drive range up to +20
dBm. This mixer integrates passive matching networks to
provide single-ended interfaces for the RF and LO ports,
eliminating the need for external RF baluns or matching
networks. The PE4122 is optimized for frequency
down-conversion using low-side LO injection for PCS & 3G
Base Station applications, and is also suitable for use in
up-conversion applications.
The PE4122 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. Functional Diagram
UltraCMOS™ High Linearity Quad
MOSFET Mixer For PCS & 3G BTS
Features
•
Integrated, single-ended RF & LO
interfaces
•
High linearity: IIP3 >+ 30 dBm,
1.8 - 2.0 GHz (+17 dBm LO)
•
Low-conversion loss: 7.4 dB
(+17 dBm LO)
•
High isolation: typical LO-IF at 38 dB,
LO-RF at 34 dB
•
Designed for low-side LO injection
Figure 2. Package Type
8-lead TSSOP
LO
RF
PE4122
IF
Table 1. AC and DC Electrical Specifications @ +25 °C
(Z
S
= Z
L
= 50
Ω)
Parameter
Frequency Range:
LO
RF
IF
1
Conversion Loss
2
Isolation:
LO-RF
LO-IF
Input IP3
1.8 GHz
1.9 GHz
2.0 GHZ
Input 1 dB Compression
Notes:
28
34
28
31
28
Minimum
1540
1800
--
Typical
--
--
260
7.4
34
38
30
33
30
20
Maximum
1740
2000
--
7.8
Units
MHz
MHz
MHz
dB
dB
dB
dBm
dBm
dBm
dBm
1. An IF frequency of 260 MHz is a nominal frequency. The IF frequency can be specified by the user as long as the RF and LO frequencies
are within the specified maximum and minimum.
2. Conversion Loss includes loss of IF transformer (M/A COM ETK4-2T, nominal loss 0.7dB at 260 MHz).
*Test conditions unless otherwise noted: LO = 260 MHz, LO input drive = 17 dBm, RF input drive = 0 dBm.
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│
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©2006 Peregrine Semiconductor Corp. All rights reserved.
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PE4122
Product Specification
Figure 3. Pin Configuration (Top View)
LO
GND
RF
1
2
3
8
7
6
5
GND
IF1
IF2
GND
Table 3. Absolute Maximum Ratings
Symbol
T
ST
T
OP
P
LO
P
RF
V
ESD
Parameter/Conditions
Storage temperature range
Operating temperature
range
LO input power
RF input power
ESD Sensitive Device
Min
-65
-40
Max
150
85
20
16
250
Units
°C
°C
dBm
dBm
V
GND
4
PE4122
Table 2. Pin Descriptions
Pin
No.
1
Pin
Name
LO
LO Input
Description
2
GND
Ground connection for Mixer. Traces
should be physically short and connect
immediately to ground plane for best
performance.
RF Input
Ground.
Ground.
IF differential output
IF differential output
Ground.
Absolute Maximum Ratings are those values
listed in the above table. Exceeding these values
may cause permanent device damage.
Functional operation should be restricted to the
limits in the DC Electrical Specifications table.
Exposure to absolute maximum ratings for
extended periods may affect device reliability.
Electrostatic Discharge (ESD) Precautions
When handling this UltraCMOS™ device, observe
the same precautions that you would use with
other ESD-sensitive devices. Although this device
contains circuitry to protect it from damage due to
ESD, precautions should be taken to avoid
exceeding the rating specified.
Latch-Up Avoidance
Unlike conventional CMOS devices, UltraCMOS™
devices are immune to latch-up.
3
4
5
6
7
8
RF
GND
GND
IF2
IF1
GND
©2006 Peregrine Semiconductor Corp. All rights reserved.
Page 2 of 8
Document No. 70-0041-04
│
UltraCMOS™ RFIC Solutions
PE4122
Product Specification
Evaluation Kit
Figure 4. Evaluation Board Layout
Peregrine Specification 101/0054
Table 4. Bill of Materials
Reference
T2
U1 (Not Labeled)
R1
J1, J2, J3
Value / Description
M/A Com ETK4-2T
PE4122 Mixer
0
Ω
SMA Connector
Pin1
Applications Support
If you have a problem with your evaluation kit or if
you have applications questions, please contact
applications support:
E-Mail: help@psemi.com (fastest response)
Phone: (858) 731-9400
Figure 5. Evaluation Board Schematic Diagram
LO
GND
RF
GND
IF1
IF2
GND
IF
GND
PE4122
T2 M/A-Com E-Series RF 4:1 Transformer 2.0 – 1000 MHz ETK4-2T
Figure 6. Evaluation Board Testing Block Diagram, 2-Tone Setup
4122
PA
3 dB
Sig
Gen
LO
Eval
Board
IF
3 dB
RF
3 dB
Spectrum
Analyzer
Sig
Gen
6 dB
Hybrid
Tee
6 dB
Sig
Gen
Document No. 70-0041-04
│
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©2006 Peregrine Semiconductor Corp. All rights reserved.
Page 3 of 8
PE4122
Product Specification
Typical Performance Data
(LO=17 dBm, RF=0 dBm, IF=260 MHz)
Figure 7. Conversion Loss vs. Frequency
Figure 8. Input 1dB Compression vs. Frequency
0
30
85 C
25
-2
1dB Compression (dBm)
Conversion Loss (dB)
20
-4
15
25 C -40 C
-6
10
-8
5
85 C
-10
1800
25 C
-40 C
1900
Frequency (MHz)
1950
2000
1850
0
1800
1850
1900
Frequency (MHz)
1950
2000
Figure 9. Input IP3 vs. Frequency
Figure 10. Output IP3 vs. Frequency
40
85 C
35
30
25
IIP3 (dBm)
20
15
10
5
0
1800
30
25
20
OIP3 (dBm)
-40 C
25 C
-40 C
15
25 C
85 C
10
5
1850
1900
Frequency (MHz)
1950
2000
0
1800
1850
1900
Frequency (MHz)
1950
2000
©2006 Peregrine Semiconductor Corp. All rights reserved.
Page 4 of 8
Document No. 70-0041-04
│
UltraCMOS™ RFIC Solutions
PE4122
Product Specification
Typical Performance Data
(LO=17 dBm, RF=0 dBm, IF=260 MHz)
Figure 11. LO-IF Isolation vs. Temperature
Figure 12. LO-RF Isolation vs. Temperature
0
0
-10
-10
LO-RF Isolation (dB)
LO-IF Isolation (dB)
-20
-20
-30
-30
-40
-50
-40 C 25 C
-60
1800
1850
85 C
1950
2000
-40
-40 C 25 C 85 C
-50
1800
1900
Frequency (MHz)
1850
1900
Frequency (MHz)
1950
2000
Figure 13. LO Port Return Loss @ 25°C
Figure 14. RF Port Return Loss @ 25°C
0
-5
0
-5
-10
Return Loss (dB)
-15
-20
-25
-30
-35
-40
1.5
-25
1.7
Return Loss (dB)
-10
-15
-20
1.55
1.6
1.65
Frequency (GHz)
1.7
1.75
1.8
1.75
1.8
1.85
1.9
1.95
2
2.05
2.1
Frequency (GHz)
Document No. 70-0041-04
│
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©2006 Peregrine Semiconductor Corp. All rights reserved.
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