SX1211I084TRT(2007) Просмотр технического описания (PDF) - Semtech Corporation

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SX1211I084TRT
(Rev.:2007)

Lowest Power Integrated UHF Transceiver Short Range Devices

Semtech Corporation 

ADVANCED COMMUNICATIONS & SENSING

SX1211

1. Block Diagram and General Description

The SX1211 is a single chip FSK and OOK transceiver capable of operation in the 863-870 MHz and 902-928 MHz

license free ISM frequency bands, and 950 - 960 MHz frequency bands. It complies with both European and North

American standards, EN 300-220 V2.1.1 (June 2006 release) and FCC Part 15 (10-1-2006 edition). A unique

feature of this circuit is its extremely low current consumption in receiver mode of 3mA (typ).

The SX1211 comes in a 5x5 mm TQFN-32 package.

1.1. Simplified Block Diagram

VR_PA

PA

RFIO

I

Q

I

LO1 Tx

Q

I

Q

LO2 Tx

LO2 Tx

Waveform

generator

LNA

XTAL_P

XO

XTAL_M

LO1 Rx

RSSI

LO2 Rx

OOK

demod

FSK

demod

BitSync

Control

Frequency Synthesizer

LO1 Rx

LO

Generator

I

Q

LO2

Rx

IQ LO1 Tx

I

Q

LO2 Tx

IRQ_0

IRQ_1

MOSI

MISO

SCK

NSS_CONFIG

NSS_DATA

CLKOUT

DATA

TEST(8:0)

PLL_LOCK

V3.0 – august 15th, 2007

Figure 1: SX1211 Block Diagram

Page 5 of 73

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