Product Specification
PE4124
High Linearity Quad MOSFET Mixer
for GSM 800 & Cellular BTS
Product Description
Features
The PE4124 is a high linearity, passive Quad MOSFET Mixer
for GSM 800 & Cellular Base Station Receivers and exhibits
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 PE4124 is optimized for frequency down-
conversion using low-side LO injection for GSM 800 & Cellular
Base Station applications, and is also suitable for use in
up-conversion applications.
• Integrated, single-ended RF & LO
interfaces
• High linearity: IIP3 > +32 dBm,
820 - 920 MHz (+17 dBm LO)
• Low conversion loss: 6.9 dB
(+17 dBm LO)
• High isolation: typical LO-IF at 43 dB,
LO-RF at 31 dB
The PE4124 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.
• Designed for low-side LO injection
Figure 1. Functional Diagram
Figure 2. Package Type
8-lead TSSOP
LO
IF
RF
PE4124
Table 1. AC and DC Electrical Specifications @ +25 °C (ZS = ZL = 50 Ω)
Parameter
Minimum
Typical
Maximum
Units
Frequency Range:
LO
RF
IF1
750
820
--
--
--
70
850
920
--
MHz
MHz
MHz
Conversion Loss2
6.9
7.3
dB
Isolation:
LO-RF
LO-IF
29
38
31
43
dB
dB
Input IP3
29
32.5
23
dBm
dBm
Input 1 dB Compression
Notes:
1. An IF frequency of 70 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 ETC1-1-13, nominal loss 0.7dB at 70MHz).
*Test conditions unless otherwise noted: LO = 70 MHz, LO input drive = 17 dBm, RF input drive = 3 dBm.
Document No. 70-0043-04 │ www.psemi.com
©2006 Peregrine Semiconductor Corp. All rights reserved.
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