概览
描述
The DAC1208D650 is a high-speed 12-bit dual channel Digital-to-Analog Converter (DAC) with selectable 2x, 4x or 8x interpolating filters optimized for multi-carrier WCDMA transmitters. Because of its digital on-chip modulation, the DAC1208D650 allows the complex pattern provided through lane 0, lane 1, lane 2 and lane 3, to be converted up from baseband to IF. The mixing frequency is adjusted via a Serial Peripheral Interface (SPI) with a 32-bit Numerically Controlled Oscillator (NCO) and the phase is controlled by a 16-bit register. The DAC1208D650 also includes a 2x, 4x or 8x clock multiplier which provides the appropriate internal clocks and an internal regulation to adjust the output full-scale current.
特性
- 1.8 V and 3.3 V power supplies
- 32-bit programmable NCO frequency
- 650 Msps maximum update rate
- ACPR: 71 dBc
- two carriers WCDMA
- fs = 640 Msps
- fo = 133 MHz
- Differential CML receiver with embedded termination
- Differential scalable output current from 1.6 mA to 22 mA
- Dual 12-bit resolution
- Embedded complex modulator
- External analog offset control (10-bit auxiliary DACs)
- Four JESD204A serial input lanes
- Fully compatible SPI port
- IMD3: 80 dBc
- fs = 640 Msps
- fo = 140 MHz
- Industrial temperature range from -40°C to +85°C
- Input data rate up to 312.5 Msps
- Integrated PLL can be bypassed
- Internal digital offset control
- Inverse (sin x) / x function
- LMF = 421 or LMF = 211 support
- LVDS compatible clock inputs
- On-chip 1.29 V reference
- Power-down mode and Sleep modes
- Selectable 2x, 4x or 8x interpolation filters
- Synchronization of multiple DAC outputs
- 2's complement or binary offset data format
- Typical 1.22 W power dissipation at 4x interpolation, PLL off and 640 Msps
- Very low noise cap free integrated PLL
产品对比
应用
设计和开发
开发板与套件
演示
DAC1208D650W1
IDT's DAC1208D650W1 demo board is suitable for dynamic performance evaluations from low to high outputs frequency configuration. The FPGA makes it easy to evaluate and analyze the DAC's dynamic performance and enables use of the full JESD204A feature set (e.g. Multiple DAC Synchronization)
模型
ECAD 模块
点击产品选项表中的 CAD 模型链接，查找 SamacSys 中的原理图符号、PCB 焊盘布局和 3D CAD 模型。如果符号和模型不可用，可直接在 SamacSys 请求该符号或模型。
产品选项
当前筛选条件