High-Speed DAC
High-Speed DAC
Leveraging our unique low-power architecture and patents, we offer ultra-low-power CMOS Hall sensors. With high signal-to-noise ratio signal reconstruction technology, we also provide ultra-high sensitivity magnetic field sampling products.
Product Model
DAD9957
The DAD9957 can implement I/Q modulator and up converter functions in various high-end communication systems. The product integrates high-speed direct digital frequency synthesizer (DDS), high-speed 14 bit analog-to-digital converter (DAC), clock multiplier circuit, digital filter, and other DSP functions internally. This chip can provide baseband up conversion for data transmission in wired or wireless communication systems, and offers excellent performance in terms of speed, power consumption, and spectrum performance.
Features
- Power supply: 1.8V and 3.3V.
- Internal system clock: 1 GSPS (up to 400 MHz analog output).
- Built-in 1 GSPS 14-bit DAC.
- Input data rate: 250 MSPS.
- Output phase noise: ≤ -124dBc /Hz (1kHz offset, 400MHz carrier).
- Narrowband SFDR: >80 dB.
- Eight programmable profile registers support shift keying inverse sinc correction filters.
- Reference clock frequency multiplication function.
- Internal oscillator, supporting single-crystal operation.
- Power saving function controlled by software/hardware.
- Integrated RAM.
- Phase modulation function.
- Multi-chip synchronization.
- Easy interface with BlackfinSPORT.
- Configurable interpolation factor from 4 to 252 times.
- Gain Control DAC.
- The internal frequency divider supports reference frequencies up to 2GHz.
- Package: 100-pin TQFP_EP.
Applications
- HFC data, telephony, and video modems.
- Wireless base station transmission.
- Broadband communication transmission.
- VoIP.
Specifications
Product Model | Resolution (bits) | Supply Voltage | Description | Channels | Data update rate | SFDR(dBc) | Data Interface | Noise spectral density | Temperature Range (°C) | Package Type | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|---|
DAD9957 | 14 | 1.8V 3.3V | High-Speed DAC | 1 | 1000MSPS | >80@narrow-band | COMS | -166@20.1MHz | -40°C ~ 85°C | TQFP-100 |
