Datasheet > ADL5570

ADL5570

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
亚德诺 - ADI		放大器功率放大器
页数	文件大小	规格书
10页	279K
描述
2.3 GHz to 2.4 GHz WiMAX Power Amplifier

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ADL5570 数据手册

2.3 GHz to 2.4 GHz

WiMAX Power Amplifier

Preliminary Technical Data

ADL5570

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Fixed gain of 29 dB

VCC1

VCC2

Operation from 2.3 GHz to 2.4 GHz

EVM ≤3% with 16 QAM OFDMA

@ P_OUT= 25 dBm [3.5V] and

@ P_OUT= 27.5 dBm [5V]

Input internally matched to 50 Ω

Power supply: 3.2 V to 5.5 V

Quiescent current

130 mA in high power mode

70 mA in low power mode

PAE: >20%

Multiple operating modes to reduce battery drain

Low power mode: 100 mA (Operating)

Standby mode: 10 mA

RFIN

IM1

1^ststage

Bias_1

IM2 2^ndstage

IM3

3^rdstage

Bias_3

RFOUT

CFLT

STBY

Bias_2

VREG

MODE

Sleep mode: < 1 μA

APPLICATIONS

Figure 1.AD5570 Block Diagram

WiMAX/WiBro Mobile Terminals and CPEs

Good performance from 2.5Ghz to 2.7Ghz - See Page 7

GENERAL DESCRIPTION

The ADL5570 is a high linearity 2.3 GHz to 2.4 GHz power

amplifier designed for WiMAX terminals and CPEs using TDD

operation at a duty cycle of 50% or lower. With a gain of 29 dB

and an output compression point of 31 dBm , it can operate at

an output power level up to 26 dBm while maintaining an EVM

of ≤3% with a supply voltage of 3.5V. PAE is greater than 20% at

The ADL5570 operates over a supply voltage range from 3.2 V

to 5.5 V with a supply current of 400mA Burst RMS when

delivering 25 dBm (3.5 V supply). A low power mode is also

available for operation at power levels ≤10 dBm with optimized

operating and quiescent currents of 100 and 70 mA,

respectively. A Standby mode is available which reduces the

quiescent current to 10 mA: useful when a TDD terminal is

receiving data.

_OUT= 25 dBm with a 3.5V supply voltage.

The ADL5570 RF input is matched on chip and provides an

input return loss of less than −10 dB. The open-collector output

is externally matched with strip-line and external shunt

capacitance.

The ADL5570 is fabricated in a GaAs HBT process and is

packaged in a 4mm x 4mm 16-Lead Pb-free RoHS compliant

LFCSP that uses an exposed paddle for excellent thermal

impedance. It operates from −40°C to +85°C.

Rev. PrG

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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