©2006 Peregrine Semiconductor Corp. All rights reserved.

Page 1 of 8

Document No. 70-0041-04

│ www.psemi.com

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.

Product Specification

UltraCMOS™ High Linearity Quad

MOSFET Mixer For PCS & 3G BTS

Product Description

Figure 1. Functional Diagram

PE4122

Features

interfaces

1.8 - 2.0 GHz (+17 dBm LO)

(+17 dBm LO)

LO-RF at 34 dB

Figure 2. Package Type

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.

8-lead TSSOP

PE4122

RF

LO

IF

Parameter

Minimum

Typical

Maximum

Units

Frequency Range:

LO

RF

1540

1800

--

--

--

260

1740

2000

--

MHz

MHz

MHz

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