A7302 Transmitter FSK/ASK, +10dBm, 10kbps, DFN 10

The A7302 is a low-cost CMOS RF transmitter for sub-1GHz ISM bands (315/433 MHz), supporting FSK (1–20 kbps) and ASK (1–10 kbps) modulation. Its built-in VCO and PLL synthesizer allow flexible frequency selection with a simple crystal reference, while a 4-step power amplifier delivers up to +10 dBm at 433 MHz.

The device is easy to use, with either SPI-controlled registers or simple pin-based HW mode. Packet transmission is handled directly via the TX_DATA pin, making it ideal for remote controls, wireless sensors, and compact smart devices. Housed in a small 10-pin DFN package, the A7302C offers high performance and simplicity in a tiny footprint.

A7302 Transmitter FSK/ASK, +10dBm, 10kbps, DFN 10

Range features

A high level overview of what this range offers

  • VDD – 2.2–3.6 V, Temp: –40~+85 °C
  • Package – DFN10, minimal external components, no SAW filter needed
  • Control – HW (no MCU, max power) or 3-wire SPI
  • Startup – Auto sequence (Xtal → Calibration → PLL → TX)
  • Current – 14 mA (FSK, 10 dBm), 8.8 mA (ASK, 50%), 0.1 µA shutdown
  • PA – 2-stage Class-C, programmable TX power (0/2/7/10 dBm)
  • RF – 310–330 MHz & 425–445 MHz, 423.75 kHz steps (13.56 MHz crystal)
  • Modulation – Direct ASK (PA switching), Direct FSK (Xtal detuning)
  • Crystal – 13.56 MHz, ±50 ppm

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