Motorola's Semiconductor Products Sector (SPS) has announced that designers can now easily add cost-effective, short-range wireless data features to their products using its 2,4 GHz transceiver IC just introduced. This transceiver is a short-range, low-power, single-chip radio designed to provide fully-integrated receiver and transmitter functions for a wide range of applications. The device is designed to require very few external components, helping to reduce end-product system and manufacturing costs.
A high level of integration in the model MC13190 transceiver helps simplify the design process for complex low-cost wireless applications. The IC is engineered to enable flexible system designs including streaming audio applications Because the MC13190 device can also support a flexible data rate, it is suitable for low-rate applications like wireless interactive toys. This transceiver is also capable of low latency connections for wireless video game controllers.
IC architecture
The MC13190 transceiver IC is designed to interface to multiple devices, including microcontrollers, microprocessors and DSPs. The receiver section includes a low noise amplifier (LNA), an AM demodulator, band pass filter and a limiter. The transmitter portion provides modulation control, baseband filtering and an AM modulator. This chip also has an on-chip PLL/VCO. The total number of external components needed for the RF function is typically reduced to between 10 and 20, due to the cost-effective AM architecture of the IC.
Performance
Operating in the 2,4 GHz ISM band, over-the-air data rates of up to 5 Mbps can be supported (Manchester encoded) with a wireless connection range of up to 10 to 15 m. Motorola provides an optional off-chip LNA design for extended range. An optional printed microstrip antenna design is also provided. The receiver has -68 dBm sensitivity with a 15 dB signal-to-noise ratio and the transmitter has a typical peak output power of 8,0 dBm. The on-chip PLL/VCO frequency is established by multiplying the reference frequency by a fixed on-chip ratio of 256.
The MC13190 2,4 GHz short-range transceiver is housed in a 5 x 5 mm 32-pin QFN surface mount package with backside ground.
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