CGY2021G 查看數據表（PDF） - Philips Electronics

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CGY2021G

DCS/PCS 2 W power amplifier

Philips Electronics 

Philips Semiconductors

DCS/PCS 2 W power amplifier

Preliminary specification

CGY2021G

FEATURES

• Power Amplifier (PA) overall efficiency 50% (DCS)

• 34 dB gain

• 0 dBm input power

• Gain control range >50 dB

• Integrated power sensor driver

• Low output noise floor of PA <−121 dBm/Hz in

DCS/PCS RX band

• Wide operating temperature range −20 to +85 °C

• LQFP 48-pin package

• Compatible with power ramping controller PCA5077 and

GaAs PA power modulator UBA1710.

GENERAL DESCRIPTION

The CGY2021G is a DCS/PCS class 1 GaAs Monolithic

Microwave Integrated Circuit (MMIC) power amplifier

specifically designed to operate at 4.8 V battery supply.

The chip also includes a power sensor driver so that no

directional coupler is required in the power control loop.

The PA requires only a simple low-pass filter to comply

with the DCS/PCS transmit spurious specification. It can

be switched off and its power controlled by monitoring the

actual drain voltage applied to the amplifier stages.

APPLICATIONS

• Hand-held transceivers for DCS/PCS applications

(DCS: 1710 to 1785 MHz and PCS:

1850 to 1910 MHz)

• 1800 MHz Time Division Multiple Access (TDMA)

systems.

QUICK REFERENCE DATA

SYMBOL

PARAMETER(1)

MIN.

VDD

positive supply voltage

−

IDD

positive peak supply current

−

Po(max)

maximum output power

−

Tamb

operating ambient temperature

−20

Note

1. For conditions, see Chapters “AC characteristics” and “DC characteristics”.

TYP.

4.5

1.4

34

−

MAX.

−

−

−

+85

UNIT

V

A

dBm

°C

ORDERING INFORMATION

TYPE

NUMBER

CGY2021G

PACKAGE

NAME

DESCRIPTION

LQFP48 plastic low profile quad flat package; 48 leads; body 7 × 7 × 1.4 mm

VERSION

SOT313-2

1997 Apr 03

2

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