SI4320-J1-FT【PDF 1/36 页】IC RCVR FSK 915MHZ 5.4V 16-TSSOP

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录509

[1页]2页 3页 4页 5页

Si4320 Universal ISM

Band FSK Receiver

DESCRIPTION

Silicon Labs’ Si4320 is a single chip, low power, multi-channel FSK

receiver designed for use in applications requiring FCC or ETSI

conformance for unlicensed use in the 315, 433, 868, and 915 MHz

bands. Used in conjunction with Si4220/21, Silicon Labs’ FSK

transmitters, the Si4320 is a flexible, low cost, and highly integrated

Si4320

PIN ASSIGNMENT

solution that does not require production alignments. All required RF

functions are integrated. Only an external crystal and bypass filtering are

needed for operation.

Standalone Mode

Microcontroller Mode

The Si4320 has a completely integrated PLL for easy RF design, and its

rapid settling time allows for fast frequency hopping, bypassing multipath

fading, and interference to achieve robust wireless links. The PLL’s high

resolution allows the usage of multiple channels in any of the bands. The

baseband bandwidth (BW) is programmable to accommodate various

deviation, data rate, and crystal tolerance requirements. The receiver

This document refers to Si4320-IC Rev J1 .

See www.silabs.com/integration for any applicable

errata. See back page for ordering information.

FEATURES

employs the Zero-IF approach with I/Q demodulation, therefore no external

components (except crystal and decoupling) are needed in a typical

application. The Si4320 is a complete analog RF and baseband receiver

including a multi-band PLL synthesizer with an LNA, I/Q down converter

mixers, baseband filters and amplifiers, and I/Q demodulator.

The chip dramatically reduces the load on the microcontroller with

integrated digital data processing: data filtering, clock recovery, data

pattern recognition and integrated FIFO. The automatic frequency control

(AFC) feature allows using a low accuracy (low cost) crystal. To minimize

the system cost, the chip can provide a clock signal for the microcontroller,

avoiding the need for two crystals.

For simple applications, the receiver supports a standalone operation

mode. This allows complete data receiver operation and control of four

digital outputs based on the incoming data pattern without a

microcontroller. In this mode, 12 or more predefined frequency channels

can be used in any of the four bands. For low power applications, the

device supports low duty-cycle operation based on the internal wake-up

timer.

FUNCTIONAL BLOCK DIAGRAM

Fully integrated (low BOM, easy design-in)

No alignment required in production

Fast settling, programmable, high-resolution PLL

Fast frequency hopping capability

High bit rate (up to 115.2 kbps in digital mode and 256 kbps

in analog mode)

Direct differential antenna input

Programmable baseband bandwidth (67 to 400 kHz)

Analog and digital RSSI outputs

Automatic frequency control (AFC)

Data quality detection (DQD)

Internal data filtering and clock recovery

RX pattern recognition

SPI compatible serial control interface

Clock and reset signals for microcontroller

16 bit RX data FIFO

Standalone operation mode without microcontroller

Low power duty-cycle mode (less than 0.5 mA average

supply current)

Standard 10 MHz crystal reference with in circuit calibration

Alternative OOK support

Wake-up timer

Low battery detector

2.2 to 5.4 V supply voltage

Low power consumption (~9 mA in low bands)

Low standby current (0.3 μA)

Compact 16-pin TSSOP package

TYPICAL APPLICATIONS

Remote control

Home security and alarm

Wireless keyboard/mouse and other PC peripherals

Toy control

Remote keyless entry

Tire pressure monitoring

Telemetry

? Personal/patient data logging

? Remote automatic meter reading

Si4320-DS Rev 1.5r 0308

www.silabs.com

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式