Product Specification
PE4122
UltraCMOS™ High Linearity Quad
MOSFET Mixer For PCS & 3G BTS
Product Description
Features
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.
• 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
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
Figure 2. Package Type
8-lead TSSOP
LO
IF
RF
PE4122
Table 1. AC and DC Electrical Specifications @ +25 °C (ZS = ZL = 50 Ω)
Parameter
Minimum
Typical
Maximum
Units
Frequency Range:
LO
RF
IF1
1540
1800
--
--
--
260
1740
2000
--
MHz
MHz
MHz
Conversion Loss2
7.4
7.8
dB
Isolation:
LO-RF
LO-IF
28
34
34
38
dB
dB
Input IP3
1.8 GHz
1.9 GHz
2.0 GHZ
28
31
28
30
33
30
dBm
dBm
dBm
Input 1 dB Compression
20
dBm
Notes:
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.
Document No. 70-0041-04 │ www.psemi.com
©2006 Peregrine Semiconductor Corp. All rights reserved.
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