Semtech Debuts Highly Integrated ISM-Band Transmitter

SX1230 is latest in Semtech's RF transmitter product platform; device reduces BOM by up to 40% for a wide array of applications

Camarillo, California - February 12, 2009

Semtech Corp. (Nasdaq: SMTC), a leading supplier of analog and mixed-signal semiconductors, today announced the SX1230 high-performance integrated ISM-band transmitter IC. Built using Semtech’s TrueRF™ technology, the SX1230 extends Semtech’s RF transmitter product platform with a part that integrates all the radio components on a CMOS die, minimizing the need for other passive components and reducing the bill of materials by up to 40%.

SX1230The SX1230 features dual power amplifiers with 35dB programmable output power, ranging from -18dBm to +17dBm with a constant radio performance over the full power supply and temperature range. Semtech’s TrueRF technology reduces phase noise so that the SX1230’s performance is a full 10db higher than competing devices with a signal purity that simplifies regulatory testing in both Europe (ETSI EN 300-220-1) and North America (FCC part 15.231,15.247 and 15.249).

The SX1230 can operate in the 315, 434, 868 and 915 MHz license-free ISM bands, and is power optimized for low consumption, drawing as low as 8mA depending on output power level.

The SX1230 features programmable data rates up to 600 kbps. It supports both narrowband and wide-band modes for use in professional and consumer applications such as automatic meter reading, remote control, and remote keyless entry. The flexible device operates in MCU mode where it acts as a system peripheral interface (SPI) slave, or in stand-alone SPI master mode, with control and payload information coming from externally connected programmable ROM (E2PROM) device.

“The SX1230 is a breakthrough for RF system designers, truly providing the functionality, design simplicity and cost effectiveness to be used across an entire line of ISM-band systems,” said Marc Pégulu Product Group Manager at Semtech. “The SX1230 gives customers a significant cost advantage because it attacks two big elements of total cost of ownership – reducing the BOM and also shortening design time.”

The SX1230 is packaged in a 5 mm x 5 mm VQFN-24 package, and is RoHS & WEEE compliant.

Key Features of the SX1230

  • +17 dBm to -18 dBm programmable output power
  • Bit rates up to 600 kbits / sec
  • FSK, GFSK, MSK, GMSK and OOK modulation
  • Consistent RF performance over a 1.8 to 3.7 V range
  • Low phase noise (-95 dBc/Hz at 50 kHz) with automated PLL calibration and fully integrated VCO and loop filter
  • MCU & Stand-alone Operating Modes
  • On chip RC timer for timer / wake-up applications
  • Low battery detection

Pricing and Availability

The SX1230 (order code: SX1230I066TRT) is available immediately in production quantities and is priced at $1.15 each in 3,000-piece lots. Semtech offers comprehensive design assistance, including field- and factory-based support. Data sheets, volume pricing, and delivery quotes, as well as evaluation kits and samples, are available by contacting

About Semtech

Semtech Corporation is a leading supplier of analog and mixed-signal semiconductors for high-end consumer, computing, communications and industrial equipment. Products are designed to benefit the engineering community as well as the global community. The company is dedicated to reducing the impact it, and its products, have on the environment. Internal green programs seek to reduce waste through material and manufacturing control, use of green technology and designing for resource reduction. Publicly traded since 1967, Semtech is listed on the NASDAQ Global Select Market under the symbol SMTC. For more information, visit

Press Contact

Pauline Cadena, Public Relations, Telephone: (805) 389-2755


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