IDT Announces Industry’s First Glitch-Free™ RF Digital Step Attenuator with Integrated Blocking Capacitors
April 23 2013 - 6:30AM
Business Wire
Integrated Device Technology, Inc. (IDT®) (NASDAQ: IDTI), the
Analog and Digital Company™ delivering essential mixed-signal
semiconductor solutions, today announced the industry’s first
Glitch-Free™ radio frequency (RF) digital step attenuator (DSA)
with integrated blocking capacitors. The new DSA is a true drop-in
replacement for the most popular DSA footprint, allowing customers
to reduce the bill-of-materials (BOM), optimize board area, and
improve performance in base station and industrial
applications.
The IDTP1953 is a 6-bit RF DSA optimized for the demanding
requirements of base transceiver station (BTS) receive, transmit,
and digital pre-distortion (DPD) paths. The device is pin- and
control-compatible with competitors’ offerings, but integrates
blocking capacitors and innovative design techniques to reduce the
BOM and improve performance. Built on IDT’s Glitch-Free™ technology
platform, the IDTF1953 reduces transient overshoot, or “glitches”,
during most significant bit (MSB) transitions by up to 95 percent
in multi-standard 4G, 3G, and 2G cellular base station and
industrial applications. IDT’s leading DSA solutions enable
customers to simplify their software interface, improve
reliability, and prevent damage to expensive sub-assemblies, such
as power amplifiers.
“Our innovative DSA is the latest addition to IDT’s
rapidly-growing, performance-leading portfolio of RF signal chain
products,” said Christian Kermarrec, vice president and general
manager of Wireless Systems at IDT. “In addition to 95 percent
transient glitch reduction during MSB transitions, our newest DSA
eliminates the requirement for series capacitors and includes key
features such as latched parallel mode and default state
configurability. The device is also a drop-in replacement for
existing 20-pin solutions from other vendors, making it an ideal
upgrade solution for customers who want to simplify the board and
improve system performance at the same time.”
The IDTF1953 operates from 400 MHz to 4000 MHz and covers a 31.5
dB attenuation range in 0.5 dB steps (6-bit). The device features
extremely low IM3 distortion for improved DPD path performance,
allowing for better transmitter spectral mask compliance and lower
power consumption. In addition, the DSAs feature very low insertion
loss (< 1.35 dB at 2 GHz) and are extremely accurate (< 0.25
dB over temperature), providing improved sensitivity and
signal-to-noise ratio (SNR) in the receiver path.
The device is ideal for setting the power level in 4G long-term
evolution (LTE), time-division duplex (TDD), wideband code division
multiple access (WCDMA), extended global system for mobile
communications (EGSM) and other popular systems. The DSA enhances
IDT’s comprehensive wireless communications portfolio that includes
RF mixers, variable gain amplifiers (VGAs), RapidIO® serial
switching, industry-leading timing, data conversion and data
compression products.
Pricing and Availability
The IDTF1953 is currently sampling to qualified customers and is
available in a 4 x 4 mm 20-lead VFQFPN package. For
more information about IDT’s RF products, 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,
sales facilities and distribution partners throughout the world,
with direct purchase services through IDT Direct™. 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.
IDT and the IDT logo are trademarks or
registered trademarks of Integrated Device Technology, Inc. All
other brands, product names and marks are or may be trademarks or
registered trademarks used to identify products or services of
their respective owners.
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