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CX42054

1700 鈥?2200 MHz High Dynamic Range, Diversity Receiver Front End

Skyworks鈥?CX42054 is an integrated, high-dynamic range, low-noise receiver down

converter for two-channel diversity systems. It includes a Low Noise Amplifier

(LNA) followed by a double-balanced active mixer. The CX42054 has dual Local

Oscillator (LO) inputs, selected using an external switch interface. The internal

attenuator is integrated with the LNA. The attenuator function is also controlled

using an externally controlled CMOS-compatible interface.

Figure 1 shows a functional block diagram for the CX42054. The 24-pin Plastic

Quad Flat Pack (PQFP) device package and pinout are shown in Figure 2.

Distinguishing Features

鈥?/div>

High 3

rd

Order Input Intercept Point (IIP3) mixer

and LNA

鈥?/div>

Wideband RF input frequency range

(1700 to 2200 MHz)

鈥?/div>

Single or two-channel applications

鈥?/div>

Use with LNA-mixer cascaded or mixer-only

鈥?/div>

Bias-selectable LNA/mixer functions

鈥?/div>

Integrated solid state attenuator

鈥?/div>

CMOS-compatible control interfaces

鈥?鹵5

V supply operation

鈥?/div>

鈥?0

擄C

to +85

擄C

operating range

鈥?/div>

Supports frequency hopping applications

Applications

鈥?/div>

PCS/DCS/UMTS communications

Mobile radio systems

WLL

WLAN

Industrial, Scientific, Medical (ISM) band

Applications

IR FILTER

RF

Balun

LNA_INA

L_GNDA

IF A

RF A

LNA

Attenuator

24

GND

Amp

23

22

21

20

19

18

IFNA

ATTN CONTROL

LO 1

LO 2

LO SELECT

Attenuator

1

LO_1

2

17

IFPA

ATTN

3

16

LO_GND

IF B

RF B

LNA

LO_SEL

4

15

VDD

LO_2

5

14

IFPB

6

13

7

8

9

10

11

12

IFNB

VSS

RF

Balun

IR FILTER

LNA_INB

L_OUTB

M_INPB

L_GNDB

C1249

M_INNB

MGNDB

M_INNA

L_OUTA

MGNDA

M_INPA

Figure 1. CX42054 Functional Block Diagram

C1250

Figure 2. CX42054 Pinout 鈥?24-Pin PQFP Package

Data Sheet

Skyworks

Proprietary Information and Specifications Are Subject to Change

Doc. No. 101432B

March 12, 2002

型號

版本

描述

廠商

下載
CX42053

英文版

CX42053 700 to 1000 MHz Front-End Receiver|Wireless Infrastr...

ETC

CX42053
CX42053

英文版

CX42053 700 to 1000 MHz Front-End Receiver|Wireless Infrastr...

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CX42054

英文版

1700-2200 MHz Front-End Receiver|Wireless Infrastructure RF/...

ETC

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CX42054

英文版

1700-2200 MHz Front-End Receiver|Wireless Infrastructure RF/...

CX42054

CX42054 Datasheet

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