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Product Description:

The AD9154 is a four-channel, 16-bit, high dynamic range digital-to-analog converter (DAC) that provides a 2.4 GSPS maximum sampling rate and can produce multi-carrier up to Nyquist frequencies in baseband mode. The AD9154 has features optimized for direct frequency conversion transmission applications, including complex digital modulation, input signal power detection, and gain, phase, and offset compensation. The DAC output is optimized to interface seamlessly with ADI's ADRF6720-27 RF quadrature modulator (AQM). In mixing mode, the DAC can reconstruct the carrier within second - and third-order Nyquist zones. The serial port interface (SPI) allows internal parameters to be programmed and read back. The full scale output current can be programmed in the range of 4 mA to 20 mA. The AD9154 is available in two different 88-pin LFCSP packages.

Product features

The ultra-wide signal bandwidth supports emerging broadband and multi-band wireless applications.

Advanced low spurious and distortion design technology enables high quality synthesis of wideband signals from baseband to high intermediate frequency.

JESD204B subclass 1 simplifies multi-chip synchronization.

Small package, size 12 mm x 12 mm.

Features

Supports input data rates up to 1 GSPS

Proprietary low stray and distortion design

Single carrier LTE 20 MHz bandwidth (BW), ACLR = 77 dBc (180 MHz IF)

Six-carrier GSM IMD = 78 dBc (600 kHz carrier spacing, 180 MHz IF)

SFDR = 72 dBc (−6 dBFS tone for 180 MHz IF)

Flexible 8-channel JESD204B interface

Multi-chip synchronization

Fixed delay

Data generator delay compensation

Input signal power detection

High performance, low noise phase locked loop (PLL) clock doubler

Digital anti-SINC filter

Digital quadrature modulation using numerical control oscillators (NCO)

Nyquist band selection-mixing mode

Optional 1, 2, 4 or 8 times interpolation filters

Low power consumption: 2.11W (1.6GSPS at all operating conditions)

88 Pin LFCSP (with exposed pad)

Applications

Wireless communication

Multi-carrier LTE and GSM base stations

Wide-band repeater

Software-defined radio

Broadband communication

Point-to-point microwave radio

Transmit diversity, multiple input/Output (MIMO)

Instrument and meter

Automatic test equipment

AD9154BCPAZ block diagram: