Avago Technologies Announces New CDMA Cell-Band and PCS Front End Modules for Mobile Handsets
New FEMs Incorporate Latest CoolPAM and FBAR Technologies to Boost Handset Performance
San Jose, California. May 05, 2009 Avago Technologies, a leading supplier of interface components for communications, industrial and consumer applications, today announced two new front end modules (FEMs) that incorporate a power amplifier (PA), duplexer, band-pass filter and coupler to improve efficiency and extend talk time in mobile handsets. Avago’s AFEM-775x series includes Avago’s CoolPAM and Film Bulk Acoustic Resonator (FBAR) technologies to improve performance in CDMA cell band and dual-band handsets, wireless PDAs and wireless data cards.
The AFEM-775x series are fully matched CDMA FEMs, which are designed to minimize power consumption with three power modes (high power, mid-power and bypass modes). Additionally, the CoolPAM-V technology incorporated in these modules does not require a DC-DC converter which helps save cost and space in handset designs. Moreover, the power amplifier is manufactured based on advanced hetero-junction bipolar transistor (InGaP HBT) technology which offers state-of-the-art reliability and ruggedness.
Avago’s AFEM-7758 is an FBAR-based duplexer that provides low insertion and outstanding isolation to minimize Tx leakage in both Rx and Tx bands over a wide temperature range. It also improves handset receiver sensitivity and single tone desensitization performance. Moreover, the optimized matching between the PA and duplexer eliminates the need for a bulky and costly isolator.
Key Features
• Integrated duplexer, power amplifier, band-pass filter and coupler
• Operating frequencies:
– AFEM-7750 – Tx: 824 to 894 MHz Rx: 869 to 894 MHz
– AFEM-7758 – TxZ: 1850 to 1910 MHz Rx: 1930 to 1990 MHz
• 25 dBM linear output power @ 3.4V
• High-power, low power and bypass modes
– High power > 15dBm
– Mid-power > 8dBm
– Very low quiescent current in Bypass mode
– High mid-power efficiency in min-power mode
• 3.2 – 4.2V linear operation
• High isolation (Low Tx leakage at Rx port)
• CDMA 2000 1xRTT capable
• No DC-DC converter needed
• 50 ohm input and output matching
• 4 by 7 by 1.1mm SMT package
Pricing and Availability
Avago’s AFEM-7750 and AFEM-7758 front end modules are available now with pricing starting from $2.20 and $2.80, respectively in 10,000 unit volumes. More information about Avago Technologies’ wireless products can be found at: www.avagotechwireless.com.
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