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10-Bit 300MS/s Video DAC
The 10-Bit 300MS/s Video DAC employs a current steering architecture with differential current outputs. It uses 5 linear bits and 5 binary bits, all of which are generated from within the current source array. The circuit is a current output DAC designed to be loaded by double terminated 75 Ohm Lines.
The DAC segmentation results in an excellent static performance and reduced glitch energy at the output. This also ensures parasitics within the DAC are minimized. Furthermore, the distortion at the output is greatly reduced by using propriety latch architecture.
The combination of static performance, reduced glitch energy, minimized parasitics and reduced distortion, results in outstanding dynamic performance over a wide range of conditions including frequencies close to the DAC Nyquist frequency.
This 10-bit DAC features an excellent static performance that includes ±0.5 LSB DNL and ±1 LSB INL.
The gain of the DAC is 6-bit controllable over a range from -8dB to 0dB. This is achieved with integrated bias current circuitry.
The 10-Bit 300MS/s Video DAC is ideal for integration with a DSP engine, and can be cost-effectively ported across foundries and process nodes upon request.
The DAC segmentation results in an excellent static performance and reduced glitch energy at the output. This also ensures parasitics within the DAC are minimized. Furthermore, the distortion at the output is greatly reduced by using propriety latch architecture.
The combination of static performance, reduced glitch energy, minimized parasitics and reduced distortion, results in outstanding dynamic performance over a wide range of conditions including frequencies close to the DAC Nyquist frequency.
This 10-bit DAC features an excellent static performance that includes ±0.5 LSB DNL and ±1 LSB INL.
The gain of the DAC is 6-bit controllable over a range from -8dB to 0dB. This is achieved with integrated bias current circuitry.
The 10-Bit 300MS/s Video DAC is ideal for integration with a DSP engine, and can be cost-effectively ported across foundries and process nodes upon request.
特色
- 40nm TSMC Logic LP Process
- No Analog Options
- 2.5V and 1.1V Supplies
- Single VDAC
- Sampling Rate up to 300Ms/s
- 6-bit Gain Control
- Output Swing 1.3V Single-Ended
- Sense Comparator in Each Channel
- Single-Ended or Differential Output Range
- Full Scale Output Currents: 17mA to 34mA
- Current Consumption:
- 20mA@IFS= 17mA
- 38.2mA@ IFS= 34mA
- DNL< 0.5LSB Typ.; INL< 1LSB Typ.
- SFDR=53dBc Typ. at 300MS/s, Fout= 1MHz
- Stand-By and Power-Down Modes
- Small Die Area
应用
- Composite Video
- RGB Video
- HDTV
Block Diagram of the 10-Bit 300MS/s Video DAC
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