IDT’s FlatNoise Technology Provides a Virtually Flat Noise Figure as Gain is Reduced, Improving QoS and Easing Data Converter SNR Requirements to Reduce System Cost

January 25, 2012

SAN JOSE, Calif., January 25, 2012 – Integrated Device Technology, Inc. (IDT®; NASDAQ: IDTI), the Analog and Digital Company™ delivering essential mixed-signal semiconductor solutions, today announced the industry’s first FlatNoise dual intermediate frequency (IF) variable gain amplifier (VGA) for multi-mode 2G/3G/4G wireless base station transceivers. IDT’s devices offer the industry’s best noise figure (4 dB) for maximum gain and virtually no degradation when gain is reduced, improving quality-of-service (QoS) and easing the signal-to-noise ratio (SNR) requirements of the downstream data converter to reduce system cost.

          The IDT F1240 and F1241 are dual-channel digitally-controlled IF VGAs featuring IDT’s FlatNoise technology. This new technology virtually eliminates noise figure degradation for the critical top 13 dB section of a wide 31 dB gain control range – a stark contrast to other IF VGAs which typically exhibit a dB for dB degradation in noise figure as gain is reduced. FlatNoise eases the SNR requirements of the system’s data converter, enabling customers to improve signal quality and use a more cost-effective, lower-resolution data converter. For many applications, this allows the customer to downgrade from a 14-bit data converter to a 12-bit data converter with comparable system SNR.
 
          “Our new FlatNoise RF products bring tremendous value to the application and complement IDT’s leading timing and RapidIO® solutions for base station designs,” said Tom Sparkman, vice president and general manager of the Communications Division at IDT. “The F1240 and F1241 feature the industry’s best noise figure and lowest power consumption, and join our previously announced F1200 as the industry’s first products to offer FlatNoise technology. By improving the signal quality at the VGA, we essentially make it easier for downstream devices to operate. This gives system designers flexibility to use a more cost-effective data converter; for example, using a 12-bit device instead of a 14-bit device.”
 
          IDT’s new IF VGAs feature extremely low distortion (OIP3 = +49 dBm), allowing for higher front-end gain, improving the receiver’s sensitivity and resulting in additional QoS enhancement. The devices operate over a 10 MHz to 500 MHz frequency range with a typical maximum gain of 20 dB and offer the industry’s lowest power consumption (80 mA per channel). In addition, the IF VGAs are extremely accurate, with a gain step error of only 0.04 dB, improving the system SNR performance even further. A parallel or serial communication interface provides control of a 6-bit (0.5dB: F1240) or 5-bit (1.0 dB: F1241) resolution, giving designers maximum flexibility.
 
Pricing and Availability
          The IDT F1240 and F1241 are currently sampling to qualified customers and are available in a 5x5 mm 32-pin QFN package. For more information about IDT’s growing RF portfolio, including the original F1200, visit www.idt.com/go/RF.
 

About IDT
        Integrated Device Technology, Inc., the Analog and Digital Company™, develops system-level solutions that optimize its customers’ applications. IDT uses its market leadership in timing, serial switching and interfaces, and adds analog and system expertise to provide complete application-optimized, mixed-signal solutions for the communications, computing and consumer segments. Headquartered in San Jose, Calif., IDT has design, manufacturing and sales facilities throughout the world. IDT stock is traded on the NASDAQ Global Select Stock Market® under the symbol “IDTI.” Additional information about IDT is accessible at www.IDT.com. Follow IDT on Facebook, LinkedIn, Twitter, and YouTube.


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