Sony CXG1122EN Datasheet

CXG1122EN

SP5T GSM Triple-Band/GPRS Antenna Switch

Description

The CXG1122EN is one of a range of low insertion
loss, high power MMIC antenna switches for GSM/
GPRS triple-band, dual-band (CXG1121TN) and
applications. The low insertion loss on transmit
means increased talk time as the Tx power amplifier
can be operated at a lower output level. On-chip logic
reduces the component count and simplifies the PCB
layout by allowing the direct connection of the switch
to digital baseband control lines with the CMOS logic
levels.

This switch is an SP5T, one antenna can be routed
to either of the 2 Tx or 3 Rx ports. It requires 3 CMOS
control lines (CTL1, CTL2 and Tx ON).

The Sony's GaAs JFET process is used for low
insertion loss. An evaluation PCB is available.

16 pin VSON (Plastic)

Features

• Insertion loss: (Tx) 0.5dB typ. at 34dBm (GSM900)

• 3 CMOS compatible control lines

• Low second harmonic: –40dBm typ. at 34dBm (GSM900)

• Small package size: 16-pin VSON (2.7mm × 3.5mm × 0.9mm)

Applications

Triple-band handsets using the combinations of followings:

• GSM900/DCS1800/PCS1900

• GPRS

• DECT

Structure

GaAs J-FET MMIC

Absolute Maximum Ratings (Ta = 25°C)

• Bias voltage VDD 7V

• Control voltage VCTL 5V

• Operating temperature Topr –20 to +80 °C

GaAs MMICs are ESD sensitive devices. Special handling precautions are required.

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

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E01Z20-PS

Pin Configuration

CXG1122EN

Rx1

GND

Rx2

GND

Rx3

GND

CTL1

CTL2

10

11

12

13

14

15

16

9

8

7

6

5

4

3

2

1

ANT

GND

Tx1

GND

Tx2

GND

V

DD

Tx ON

T ruth T able

On Pass
ANT – Tx1 GSM900
ANT – Tx2 DCS1800 & PCS1900
ANT – Rx1 GSM900/DCS1800/PCS1900
ANT – Rx2 GSM900/DCS1800/PCS1900
ANT – Rx3 GSM900/DCS1800/PCS1900

CTL1

H

L

H

L
L

CTL2

Don't care
Don't care

L
L

H

Tx ON

H
H

L
L
L

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