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Updated at 15/07/2025 10:30:15(UTC+8)

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Description

General Description
The IC is a very low power consumption single chip FSK/ASK Superhet erodyne Receiver (SHR) for the frequency band 300 to 340 MHz. The IC offers a high level of integration and needs only a few external components. The device contains a low noise amplifier (LNA), a double balanced mixer, a fully integrated VCO, a PLL synthesiser, a crystal oscillator, a limiter with RSSI generator, a PLL FSK demodulator, a data filter, a data comparator (slicer) and a peak detector. Additionally there is a power down feature to save battery life.
Features
■ Low supply current (Is = 6.4 mA typ. in FSK mode, Is = 5.6 mA typ. in ASK mode)
■ Supply voltage range 5V ±10%
■ Power down mode with very low supply current (50nA typ.)
■ FSK and ASK demodulation capability
■ Fully integrated VCO and PLL Synthesiser
■ ASK sensitivity better than -110 dBm over specified temperature range (- 40 to +105°C)
■ Selectable frequency ranges 300-320 MHz and 300-340 MHz
■ Limiter with RSSI generation, operating at 10.7MHz
■ Selectable reference frequency
■ 2nd order low pass data filter with external capacitors
■ Data slicer with self-adjusting threshold
■ FSK sensitivity better than -102 dBm over specified temperature range (- 40 to +105°C)
Applications
■ Keyless Entry Systems
■ Remote Control Systems
■ Alarm Systems
■ Low Bitrate Communication Systems

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TDA5221 Specifications

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- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- Carefully inspected and packed by ManyChip warehouse
- Vacuum packaging
- Anti-static packaging
- Shockproof foam
The terms here are for reference only, the actual terms are subject to the sales quotation.
- Please confirm product specifications when ordering.
- MOQ refers to the minimum order quantity required to purchase each part.
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- Income Quality Control (IQC), 1000+ qualified dealers.
- Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device.
- Decapsulation control
- X-ray control
- XRF inspection
- Electrical testing
- Surface testing
-Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity

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SN:H1.34676LO43625V30Q0QC0S0

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