AD9957BSVZ Analog Devices - Semiconductors - ICs

Series Information for AD9957BSVZ - Analog Devices

Features

1 GSPS internal clock speed (up to 400 MHz analog output) Integrated 1 GSPS 14-bit DAC 250 MSPS input data rate Phase noise u2264 u2212125 dBc/Hz (400 MHz carrier @ 1 kHz offset) Excellent dynamic performance >80 dB narrow-band SFDR 8 programmable profiles for shift keying Sin(x)/(x) correction (inverse sinc filter) Reference clock multiplier Internal oscillator for a single crystal operation Software and hardware controlled power-down Integrated RAM Phase modulation capability Multichip synchronization Easy interface to Blackfin SPORT Interpolation factors from 4u00d7 to 252u00d7 Interpolation DAC mode Gain control DAC Internal divider allows references up to 2 GHz 1.8 V and 3.3 V power supplies 100-lead TQFP_EP package

RoHS Compliant

Datasheet

PCB Footprint

Description

IC MODULATOR IQ UPCONVERTOR SMD

The AD9957 functions as a universal I/Q modulator and agile upconverter for communications systems where cost, size, power consumption, and dynamic performance are critical. The AD9957 integrates a high speed, direct digital synthesizer (DDS), a high performance, high speed, 14-bit digital-to-analog converter (DAC), clock multiplier circuitry, digital filters, and other DSP functions onto a single chip. It provides baseband upconversion for data transmission in a wired or wireless communications system. The AD9957 is the third offering in a family of quadrature digital upconverters (QDUCs) that includes the AD9857 and AD9856. It offers performance gains in operating speed, power consumption, and spectral performance. Unlike its predecessors, it supports a 16-bit serial input mode for I/Q baseband data. The device can alternatively be programmed to operate either as a single tone, sinusoidal source or as an interpolating DAC. The reference clock input circuitry includes a crystal oscillator, a high speed, divide-by-two input, and a low noise PLL for multiplication of the reference clock frequency. The user interface to the control functions includes a serial port easily configured to interface to the SPORT of the Blackfin® DSP and profile pins to enable fast and easy shift keying of any signal parameter (phase, frequency, or amplitude).

Specifications

Frequency Min:

60MHz

Frequency Max:

1GHz

Supply Voltage Min:

1.71V

Supply Voltage Max:

1.89V

RF IC Case Style:

TQFP

No. of Pins:

100Pins

Operating Temperature Min:

-40°C

Operating Temperature Max:

85°C

Product Range:

AD9957 Series

RoHS Phthalates Compliant:

Yes

MSL:

MSL 3 - 168 hours

SVHC:

No SVHC (07-Jul-2017)

Base Number:

9957

Frequency Range:

60MHz to 1GHz

Operating Temperature Range:

-40°C to +85°C

RF Type:

Quadrature

Supply Voltage Range:

1.7V to 1.89V 3.135V to 3.465V

Termination Type:

Surface Mount Device