XE1205 データシートの表示（PDF） - Semtech Corporation

部品番号

コンポーネント説明

メーカー

XE1205

180 MHz – 1GHz Low-Power, High Link Budget Integrated UHF Transceiver

Semtech Corporation 

XE1205

The XE1205 single-chip solution is an integrated circuit intended for use as a low cost FSK transceiver to establish a

frequency-agile, half-duplex, bi-directional RF link, with non-return to zero data coding. The device is available in a VQFN

48 package and is designed to provide a fully functional multi-channel FSK transceiver. It is intended for applications in the

433 MHz and 868 MHz European bands and the North American 915 MHz ISM band. The single chip transceiver operates

down to 2.4V. Its ability to operate with 25 kHz channel spacing makes it compliant with requirements of ETSI EN300 220-

1 and makes the XE1205 ideal for automatic meter reading and alarms.

1 NON-CONFORMANCE

Please note early version lot codes whose date-codes start with N3K, N4K and N5K (except N5K3760, N5K3760A,

N5K3760B and N5K6993) exhibit a non-conformance to specification. The non-conformance affects the FIFO buffer

described in section 5.2.5. Please use the FIFO in this product only in conjunction with the Technical Note TN1205.01

(available www.semtech.com). All other date-codes are in conformance with the specification.

2 FUNCTIONAL BLOCK DIAGRAM

MATCHING

NETWORK

RFA

LNA

RFB

LO_BUF

FAMP

LPF

FAMP

LPF

PHASE

SHIFTER

IREF

IAMP

BBAMP

BBAMP

RSSI

IAMP

LIM

DEMOD

LIM

BITSYNC

PATTERN

MATCHING

FIFO

IRQ_0

IRQ_1

MOSI

MISO

SCK

NSS_DATA

CHIP

NSS_CONFIG

INTERFACE

SW(0)

SW(1)

DATA

FEI

RFOUT

MATCHING

NETWORK

PA

© Semtech 2008

MMOD

DIVIDER

VCO

DIVCTL

modulator

/n Synthesizer

CLKXTAL

CH PUMP

PFD

OSCILLATOR

TKA

TKB

LFB

VCO

TANK

LOOP

FILTER

XTA

XTB

XTAL

Data shaping

filter

XE1205

/n

CLOCK OUT

CLKOUT TSUPP TMOD(3:0)

IREF

POR

POR

Figure 1: XE1205 block diagram.

3

www.semtech.com

Share Link: