Demodulator handles IF/baseband conversion to 1GHz

Edited by the Electronicstalk editorial team Feb 26, 2003

The AD8348 high-performance broadband quadrature demodulator is designed to enable IF-to-baseband conversion from 50MHz to 1GHz.

The AD8348 high-performance broadband quadrature demodulator is designed to enable IF-to-baseband conversion from 50MHz to 1GHz.

In addition to the demodulator, which includes a dual mixer core and local oscillator phase splitter, the AD8348 integrates a 45dB linear-in-decibels variable-gain amplifier (VGA) and single-ended to differential amplifiers for driving baseband ADCs.

The AD8348 is optimised and ideally suited for driving dual-channel, low-cost CMOS ADCs, such as the AD9218.

With high linearity, exceptional amplitude/phase balance, and 60MHz demodulation bandwidth, the AD8348 enables most high-order modulation formats, including QAM, QPSK and 8-PSK.

This combination of performance, broadband operating frequency, and flexible device architecture makes the AD8348 ideal for a variety of wireless networking applications, including cellular infrastructure CDMA/W-CDMA/GSM Edge and high-capacity, point-to-point and point-to-multipoint radio links, wireless LAN and wireless local loop equipment.

The AD8348 is available in a 28-lead TSSOP (thin shrink small outline package) and is fully specified for use over the -40 to +85C temperature range.

Samples and preproduction quantities are available for immediate shipment.

The AD8348 is priced at $4.95 per unit in 10,000-piece quantities.