GENERAL DESCRIPTION

The AD9267 is a dual continuous time (CT) sigma-delta (Σ-Δ) modulator with −88 dBc of dynamic range over 10 MHz real or 20 MHz complex bandwidth. The combination of high dynamic range, wide bandwidth, and characteristics unique to the continuous time Σ-Δ modulator architecture makes the AD9267 an ideal solution for wireless communication systems.

FEATURES

SNR: 83 dB (85 dBFS) to 10 MHz input

SFDR: −88 dBc to 10 MHz input

Noise figure: 15 dB

Input impedance: 1 kΩ

Power: 416 mW

10 MHz real or 20 MHz complex bandwidth

1.8 V analog supply operation

On-chip PLL clock multiplier

On-chip voltage reference

Twos complement data format

640 MSPS, 4-bit LVDS data output

Serial control interface (SPI)

APPLICATIONS

Baseband quadrature receivers: CDMA2000, W-CDMA, multicarrier GSM/EDGE, 802.16x, and LTE

Quadrature sampling instrumentation