Description
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 for base band up-conversion for data transmission in a wired or wireless communications system. The AD9957 is the third offering in a family of a quadrature digital upconverters (QDUCs), which includes the AD9857 and AD9856. It offers performance gains in operating speed, power consumption and spectral performance. Unlike its predecessors, it also supports a 16-bit serial input mode for I/Q base band data. The device can alternatively be programmed to operate 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.
Specifications: | |
Attribute | Value |
Category | Integrated Circuits (ICs) |
Interface - Direct Digital Synthesis (DDS) | |
Mfr | Analog Devices Inc. |
Series | - |
Package | Tray |
Part Status | Active |
Resolution (Bits) | 14 b |
Master fclk | 1 GHz |
Tuning Word Width (Bits) | 32 b |
Voltage - Supply | 1.8V, 3.3V |
Operating Temperature | -40°C ~ 85°C |
Mounting Type | Surface Mount |
Package / Case | 100-TQFP Exposed Pad |
Supplier Device Package | 100-TQFP-EP (14x14) |
Base Product Number | AD9957 |