cxa3200ar Sony Electronics, cxa3200ar Datasheet

cxa3200ar

Manufacturer Part Number

cxa3200ar

Description

Low-power Ultraminiature Multi-band Gsm Transceiver Ic

Manufacturer

Sony Electronics

Datasheet

1.CXA3200AR.pdf (2 pages)

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The CXA3200ER/AR adopts an ad-

vanced architecture. It can efficiently

implement not only single band and dual

band receivers, but even triple band

receivers for the 900, 1800, and 1900

MHz bands in the GSM standard. The

transmitter system takes full advantage

of sum loop technology to produce a

high-purity transmitter output signal,

and thus allows the high-cost large

insertion loss duplexer normally

required to be replaced with a low-cost

low-loss antenna switch. The receiver

The GSM digital portable phone system was first placed in service in

1992 in Europe, but its use has now grown to the point where it is the

world standard for digital portable phones.

With this flourishing demand as background, new GSM frequency bands

are about to be placed in service in many countries worldwide.

To respond to this market demand, Sony has promoted IC design for

the GSM system at its design center in England. One of the results of

this effort is the development of the CXA3200ER/AR described here.

Low-Power Ultraminiature Multi-Band GSM Transceiver IC

CXA3200ER

CXA3200AR

When I started working on devel-

oping this IC, I made a point of

keeping in mind Sony’s image of

producing the world’s smallest

and lightest products. To achieve

this in the world of GSM portable

phones, we made it our goal to

integrate the functions for two

transceivers, one for the 900 MHz

band and one for the 1800 MHz

band, on a single chip. I believe

that this makes it possible to pro-

vide GSM subscribers with GSM

portable phones that are smaller

and lighter than conventional cell

phones, and that can be used in

any country, whichever standard

it adopts.

Leading Edge Architecture

system allows an optimal IF frequency

to be selected, and thus can support all

the GSM reception bands with a single

IF SAW filter. It also includes on-chip

both a bias control circuit provided for

an external low-noise LNA, and an IF

local signal oscillator circuit that is

shared by the transmission and recep-

tion systems. Transmission, reception,

and power saving modes (mode control)

can be controlled with great precision

over the 3-wire bus. The reception mode

gain can also be controlled over that bus.

Sony provides two version of this

product, the CXA3200ER and the

CXA3200AR, for interface with a wide

range of baseband chips. To achieve

even further miniaturization in GSM

phones, the CXA3200ER is provided in

a newly-developed VQFN leadless

package. (See figures 2 and 3.)

Range of Baseband Chips

Ultraminiature Package

and Support for a Wide

By adopting a leading-edge bipolar pro-

cess, Sony was able to achieve low

power, especially in reception mode,

where current consumption is 48 mA

(when V

GSM phone operating time to be in-

creased. Also, in conjunction with

Sony’s MMIC products, this device

allows the creation of high-sensitivity

low loss transceivers. Furthermore,

GPRS* and other high-speed data com-

munication systems can be imple-

mented by using this product in

conjunction with a commercial general-

purpose high-performance PLL IC.

Sony is now actively improving its com-

munication semiconductor design and

customer support system, not only in

Japan, but also through Sony Semicon-

ductor Europe in the UK under a

powerful support system based in Japan.

The CXA3200ER/AR was created

under this global system, and is opti-

mal for implementing GSM portable

phone transceivers.

* GPRS: General Packet Radio Service

Sony Semiconductor

Europe

Sony Total RF Solutions

Transmission: Sum loop

Reception: Single conversion +

demodulator

Support for a wide range of

baseband chips

Ultraminiature package

Low power consumption

All functions can be controlled

over a 3-wire bus

Reception: 48 mA

Transmission: 68 mA

is 2.8 V). This allows the

Related parts for cxa3200ar

cxa3200ar Summary of contents

Page 1

... Support for a Wide Range of Baseband Chips E Sony provides two version of this product, the CXA3200ER and the CXA3200AR, for interface with a wide range of baseband chips. To achieve even further miniaturization in GSM phones, the CXA3200ER is provided in a newly-developed VQFN leadless package. (See figures 2 and 3.) ...

Page 2

... Dual VCO Dual PLL VCO Main synthesizer 0 0.5 0.18 0.13 0.025 +0.09 0.14 –0.03 Terminal section Detail A Figure 3 CXA3200AR 48-Pin LQFP (plastic) CXA3200ER/AR RXI XRXI RXQ XRXQ /1 /5 VCO-OUT 90 deg./0 deg. /5 GSM /3 PCN 90 deg./0 deg. VCO Logic TXI Tuned XTXQ XTXI varactor 1T413 cct Aux ...

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