描述 Description

The TH72002 ASK transmitter IC is designed for applications in the 315 MHz industrial-scientific-medical (ISM) band. It can also be used for any other system with carrier frequencies ranging from 290 to 350 MHz.
The transmitter's carrier frequency is determined by the frequency of the reference crystal fref. The integrated phase-locked loop (PLL) synthesizer ensures that carrier frequencies, ranging from 290 to 350 MHz, can be achieved. This is done by using a crystal with a reference frequency according to fref = fc/N, where N = 32 is the PLL feedback divider ratio.

特性 Features

·Fully integrated PLL-stabilized VCO
·Frequency range from 290 to 350 MHz
·Single-ended RF output
·ASK achieved by on/off keying of internal power amplifier up to 40 kbit/s
·Wide power supply range from 1.95 to 5.5 V
·Operating temperature range -40 °C to +125 °C
·Very low standby current
·On-chip low voltage detector
·High over-all frequency accuracy
·Adjustable output power range from -10 dBm to +11 dBm
·Adjustable current consumption from 3.2 mA to 10.3 mA
·Conforms to FCC part 15 and similar standards
·8-pin Small Outline Integrated Circuit (SOIC)

應(yīng)用 Application

·建筑，安全，家庭和辦公自動(dòng)化行業(yè)
·消費(fèi)行業(yè)解決方案