6/11/2003 - Atmel® Corporation (Nasdaq: ATML) announced the availability of three new active up-conversion mixer ICs for cellular and WLL infrastructure, instrumentation and ISM band applications. The new devices ATR0785, ATR0786 and ATR0787 are part of Atmel's product line of essential building blocks for the main RF standard functions, including mixers, modulators and demodulators. These building blocks can be used for multi-purpose applications in RF systems including wireless access systems (such as point-to-point or point-to-multipoint radio systems) and base stations.
Unlike most conventional mixers which are passive solutions and have a higher risk of spurious emissions, these new devices are active components, providing a conversion gain of about 17 dB, for drastic reduction of external influences. Moreover, spurious emissions can be reduced since the new devices incorporate buffers (e.g. LO buffer) in contrast to passive solutions.
The ATR0785, ATR0786 and the ATR0787 are manufactured using Atmel's advanced Silicon Germanium (SiGe) process enabling maximum performance. Atmel's innovative SiGe process also ensures that the devices are thermally insensitive. This feature makes them highly reliable and guarantees maximum quality.
Each up-converter is dedicated for a specific operating frequency to ensure a highly linear IF-to-RF conversion with low LO-RF leakage. The ATR0785 covers the 800 to 1000 MHz operating range and is therefore optimized to be implemented into GSM, TDMA, and CDMA applications, whereas the ATR0786, operating at 1800 to 2100 MHz, is well-suited for use in UMTS, DCS or PCS systems. The ATR0787 can be used for any wireless application in the 2100 to 2500 MHz band.
All I/O ports have a 50 Ohm impedance. The LO and the RF ports can also be driven single ended if needed, thus helping to simplify the application. This allows easy and fast design-in while keeping the board space consumption to a minimum.
"With these up-conversion mixer ICs, we offer designers of wireless infrastructure systems an easy-to-implement solution with perfect performance and reliability. Along with our earlier introduced down-coverter family, Atmel extends its RF building blocks product range to provide customers a wide set of multiple solutions", stated Carsten Friedrich, Marketing Manager for Cellular RF Applications.
Samples of the ATR078x (TSSOP16 package) are available now. Pricing starts at US$ 3.85 (10 k).
CDMA = Code-Division Multiple Access
DCS = Digital Cellular System
GSM = Global System for Mobile Communications
IF = Intermediate Frequency
ISM = Industrial - Scientific - Medical
LO = Local Oscillator
PCS = Personal Communications System
TDMA = Time-Division Multiple Access
UMTS = Universal Mobile Telephone System
WLL = Wireless Local Loop
Founded in 1984, Atmel Corporation is headquartered in San Jose, California with manufacturing facilities in North America and Europe. Atmel designs, manufactures and markets worldwide, advanced logic, mixed-signal, nonvolatile memory and RF semiconductors. Atmel is also a leading provider of system-level integration semiconductor solutions using CMOS, BiCMOS, SiGe, and high-voltage BCDMOS process technologies.
Atmel, the Atmel logo and combinations thereof and others contained herein, are trademarks of Atmel Corporation or its subsidiaries.
Atmel's SiGe up-conversion mixer ICs ATR078x product information may be retrieved at:
Information on other Atmel infrastructure ICs can be found at http://www.atmel.com/dyn/products/devices.asp?family_id=666
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