AD9957BSVZ

AD9957 is a universal I/Q modulator and agile upconverter for communications systems where cost, size, power consumption, and dynamic performance are critical. It integrates a high speed, direct digital synthesizer (DDS), a high performance, high speed, 14bit digital-to-analogue 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. It offers performance gains in operating speed, power consumption, and spectral performance. Unlike its predecessors, it supports a 16bit serial input mode for I/Q baseband data. This device can alternatively be programmed to operate either as a single tone, sinusoidal source or as an interpolating DAC. It is used in applications such as HFC data, telephony, and video modems, wireless base station transmissions, broadband communications transmissions, internet telephony.

• 1GSPS internal clock speed (upto 400MHz analogue output), integrated 1GSPS 14bit DAC
• Maximum PDCLK frequency is 250MHz typical at (T = 25°C)
• 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 4× to 252×, interpolation DAC mode
• Gain control DAC, internal divider allows references upto 2GHz
• Power supply range from 1.8V and 3.3V
• Operating temperature is -40°C to +85°C, package style is 100-lead TQFP-EP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party