MRF89XA datasheet(96/140 Pages) MICROCHIP

номер детали	MRF89XA

подробное описание детали	Ultra Low-Power, Integrated ISM BandSub-GHz Transceiver

Download	140 Pages

Scroll/Zoom	100%

производитель	MICROCHIP [Microchip Technology]

домашняя страница	http://www.microchip.com

Logo

96 / 140 page

MRF89XA

DS70000622D-page 96

Preliminary

 2010-2017 Microchip Technology Inc.

4.5

POWER AMPLIFIER

The Power Amplifier (PA) integrated in the MRF89XA

operates under a regulated voltage supply of 1.8V. The

external RF choke inductor is biased using an internal

regulator output made available on the PARS pin (pin

29). These features help PA output power to be consis-

tent over the power supply range. This is important for

applications that allow predictable RF performance and

battery life.

4.5.1

OPTIMUM LOAD IMPEDANCE

As the PA and the LNA front-ends in the MRF89XA

share the same input or output pin, they are internally

matched to approximately 50Ω. Figure 4-4 illustrates

the optimum load impedance of RFIO through an

impedance chart.

FIGURE 4-4:

OPTIMAL LOAD IMPEDANCE CHART

Pmax-1dB circle

Max Power

Zopt = 30 + j25



Note:

Refer to Section 4.8, Bill of Materials for

an optimized PA load setting.

Аналогичный номер детали - MRF89XA

производитель	номер детали	датащи	подробное описание детали
Microchip Technology	MRF89XAM8A	682Kb / 34P	868 MHz Ultra-Low Power 08/04/10
	MRF89XAM8A-I	2Mb / 140P	Ultra Low-Power, Integrated ISM Band Sub-GHz Transceiver 08/02/11
	MRF89XAM8A-I/RM	682Kb / 34P	868 MHz Ultra-Low Power 08/04/10
	MRF89XAM8AT-I/RM	682Kb / 34P	868 MHz Ultra-Low Power 08/04/10
	MRF89XAM9A	623Kb / 36P	915 MHz Ultra Low-Power Sub-GHz Transceiver Module 11/29/12

производитель	номер детали	датащи	подробное описание детали
Microchip Technology	MRF89XAM8A-I	2Mb / 140P	Ultra Low-Power, Integrated ISM Band Sub-GHz Transceiver 08/02/11
Freescale Semiconductor...	MC13191	340Kb / 24P	2.4 GHz ISM Band Low Power Transceiver
	MC13191	289Kb / 24P	2.4 GHz ISM Band Low Power Transceiver
	MC13191	373Kb / 24P	2.4 GHz ISM Band Low Power Transceiver
ATMEL Corporation	ATR2406	1Mb / 26P	Low-IF 2.4-GHz ISM Transceiver
	ATR2406	813Kb / 25P	Low-IF 2.4-GHz ISM Transceiver
	ATR2406	682Kb / 20P	LOW IF .4 GHZ ISM TRANSCEIVER
	ATR2406	850Kb / 25P	Low-IF 2.4-GHz ISM Transceiver
Semtech Corporation	SX1211	1Mb / 92P	Ultra-Low Power Integrated UHF Transceiver
List of Unclassifed Man...	RF63	3Mb / 91P	Ultra-Low Power Integrated UHF Transceiver