Datasheet > PT4305

PT4305

更新时间： 2024-11-07 01:19:19

品牌	Logo	应用领域
普诚科技 - PTC		/
页数	文件大小	规格书
5页	248K
描述
315 MHz / 433.92 MHz PLL Tuned Low Power FSK Receiver

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PT4305 数据手册

PT4305

315 MHz / 433.92 MHz

PLL Tuned Low Power FSK Receiver

DESCRIPTION

FEATURES



Supply voltage range: 2.4 V to 5.5 V

Low current consumption: 5.4 mA (typical) at 433.92

MHz

The PT4305 is a PLL-tuned FSK receiver for

short-range wireless data applications in the 315 MHz

and 434 MHz frequency bands. The PT4305 offers a

high level of integration and only requires few external

components.



Supported data rate range: 1 Kb/s to 10 Kb/s

Few external components

Image-reject mixer

On-chip auto-tuned channel-select band-pass filter

Received signal strength indicator (RSSI)

Leader-code detection

The PT4305’s receive section includes a low-noise

amplifier, image-reject mixer, IF band-pass filter,

limiting amplifier, and frequency-shift keying (FSK)

demodulator and also includes automatic gain control

(AGC). A switched-capacitor data filter further filters

the signal after the demodulator before a slicing

comparator restores the data to full-swing CMOS logic

levels.

16-pin SSOP package

APPLICATIONS



Remote keyless entry (RKE) systems

Remote control

Home security and alarm

Wireless toy control

Personal/patient data logging

Remote automatic meter reading

The local oscillator sub-system consists of

phase-locked loop (PLL) based on a crystal oscillator

reference. The receiver channel frequency is

determined by the choice of the crystal frequency.

A built-in voltage regulator provides improved power

supply rejection (PSR) and extends the supply voltage

range from 2.4 V to 5.5 V.

The PT4305 is available in a 16-pin SSOP package

and its operation is specified over the temperature

range from –40 to +85 °C.

BLOCK DIAGRAM

Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, No. 233-1, Baociao Rd., Sindian Dist., New Taipei City 23145, Taiwan

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