Datasheet > F1350

F1350

更新时间： 2024-11-06 14:58:03

品牌	Logo	应用领域
瑞萨 - RENESAS		光电二极管
页数	文件大小	规格书
27页	1614K
描述
DPD Demodulator - 1300MHz to 2900MHz

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F1350 数据手册

DPD Demodulator for PA

IDTF1350

Datasheet

Linearization, 1300MHz to 2900MHz

DESCRIPTION

FEATURES (I OR Q PATH)

This document describes the specification for the

IDTF1350 Digital Pre-Distortion Demodulator for PA

linearization. This series of devices is offered in 2

variants to cover common UTRA bands. See part

number matrix below for additional detail.

•

Wide flat performance IF BW

Wide RF and LO BWs (~ 1.6 GHz)

Ideal for Multi-Carrier Systems

Drives ADC directly

Ultra linear +41 dBm IP3_O

Low Noise Figure

Excellent ACLR performance

200 Ω output impedance

Fully integrated DPD demodulator

6x6 36 pin package

Standby Mode w/Fast Recovery

I_CC: 275 mA

COMPETITIVE ADVANTAGE

In typical base station transmitters digital pre-distortion

is employed to improve the Transmitter performance.

The signal coming out of the PA is sampled and the

incoming Tx chain I&Q data is pre-distorted to

counteract the distortion inherent in the PA. The PA

signal is adjusted via a digital step attenuator to a lower

level and then sub-sampled at an IF frequency of ~200

MHz which necessitates the need for a highly linear

demodulator to downmix to quadrature IF from the

Transmit frequency. By sampling IF_I and IF_Q

independently and then digitally combining these signals,

an effective doubling of the sample rate can be achieved.

Any distortion in this path will degrade the performance

of the DPD algorithm. By utilizing an ultra-linear

demodulator w/integrated DSA such as the IDTF1350,

the ACLR and/or power consumption of the full Tx

system can be improved

BLOCK DIAGRAM

CSb SDI CLK

SPI

DEC

IF_I

SPLIT

STBY

I_SET

Bias

Control

90^O

I_BIAS

significantly.

RF_{IN_Y}

RF_{IN_X}

IF_Q

 DPD full path ACLR: ⇓ 1 dB

 Icc: DPD function Power

Consumption ⇓ 40%

LO_IN

RF VCO



Zero-Distortion^TMDemod eliminates 2 IF

amps



Integrates 2 BPFs, 2 Baluns,

SPDT RF switch

ORDERING INFORMATION



Glitch-Free^TMgain control

Omit IDT

0.8 mm height

package

Tape &

Reel

Glitch-Free^TM

prefix

PART# MATRIX

IDTF1350NBGI8

Part#

F1300

F1350

RF range

550 - 1150

1300 - 2900

UTRA

bands

IF freq

range

Typ.

Gain

Injection

RF product Line

Green Industrial

5,6,8,12,13,

14,17

High Side

or Low Side

20 - 350

12.5

Temp range

1,2,3,4,9,10

7,21, 24, 38

High Side

or Low Side

20 - 500

12.5

IDT Zero-Distortion^TM, Glitch-Free^TMDPD Receiver

January 21, 2020

12 3 4 5 6 7...27

中文翻译

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