Datasheet > T5754_07

T5754_07

更新时间： 2022-03-25 18:18:35

品牌	Logo	应用领域
爱特美尔 - ATMEL		/
页数	文件大小	规格书
13页	200K
描述
UHF ASK/FSK Transmitter

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数据手册

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T5754_07 数据手册

Features

• Integrated PLL Loop Filter

• ESD Protection also at ANT1/ANT2

(4 kV HBM/200V MM; Except Pin 2: 4 kV HBM/100V MM)

• High Output Power (7.5 dBm) with Low Supply Current (9.0 mA)

• Modulation Scheme ASK/ FSK

– FSK Modulation is Achieved by Connecting an Additional Capacitor Between the

XTAL Load Capacitor and the Open Drain Output of the Modulating Microcontroller

• Easy to Design-in Due to Excellent Isolation of the PLL from the PA and Power Supply

• Single Li-cell for Power Supply

• Supply Voltage 2.0V to 4.0V in the Temperature Range of –40°C to 85°C/125°C

• Package TSSOP8L

UHF ASK/FSK

Transmitter

• Single-ended Antenna Output with High Efficient Power Amplifier

• CLK Output for Clocking the Microcontroller

• One-chip Solution with Minimum External Circuitry

• 125°C Operation for Tire Pressure Systems

T5754

1. Description

The T5754 is a PLL transmitter IC which has been developed for the demands of RF

low-cost transmission systems at data rates up to 32 kBaud. The transmitting

frequency range is 429 MHz to 439 MHz. It can be used in both FSK and ASK

systems.

Figure 1-1. System Block Diagram

UHF ASK/FSK

Remote control transmitter

Remote control receiver

1 Li cell

T5754

U3741B/

U3745B/

T5743/

1 to 3 Micro-

controller

Demod

Control

T5744

Encoder

ATARx9x

PLL

Keys

Antenna Antenna

XTO

VCO

PLL

XTO

Power

amp.

LNA

VCO

4511I–RKE–02/07

12 3 4 5 6 7...13

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