Overview
The AD9983AKSTZ-170, produced by Analog Devices Inc., is a high-performance 8-bit display interface optimized for capturing YPbPr video and RGB graphics signals. This monolithic analog interface is designed to support various video and graphics resolutions, including all HDTV video modes up to 1080i and 720p, as well as graphics resolutions up to SXGA (1280 x 1024 at 75 Hz). The device integrates a 140 MHz triple ADC, an internal reference, a PLL, and programmable gain, offset, and clamp control, making it a comprehensive solution for analog signal processing in display applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Encode Rate | - | 140 | - | MSPS |
| Analog Bandwidth | - | 300 | - | MHz |
| Supply Voltage (VD, PVD, DAVDD) | 1.7 | 1.8 | 1.9 | V |
| Supply Voltage (VDD) | 1.7 | 3.3 | 3.47 | V |
| Supply Current (ID, IPVD, IDAVDD) | - | 250, 9, 16 | - | mA |
| Operating Temperature | 0 | - | 70 | °C |
| Input Voltage Range (Analog Inputs) | 0.5 | - | 1.0 | V p-p |
| Output Voltage (High/Low) | 0.1 / VDD - 0.1 | - | - | V |
Key Features
- High-performance 8-bit analog interface for YPbPr video and RGB graphics signals.
- 140 MHz triple ADC with internal reference and PLL.
- Programmable gain, offset, and clamp control.
- Supports all HDTV video modes up to 1080i and 720p, and graphics resolutions up to SXGA.
- Three-state CMOS outputs compatible with 1.8 V to 3.3 V power supplies.
- 2-wire serial interface (I2C) for control.
- High impedance analog input pins with dc restoration circuitry.
- Low power dissipation (less than 800 mW) and operating temperature range of 0°C to 70°C.
Applications
The AD9983AKSTZ-170 is primarily used in video and graphics processing applications, including:
- HDTV systems supporting up to 1080i and 720p resolutions.
- Graphics systems supporting up to SXGA (1280 x 1024 at 75 Hz) resolutions.
- Display interfaces for various digital displays.
- Video capture and processing systems.
Q & A
- What is the encode rate of the AD9983AKSTZ-170?
The AD9983AKSTZ-170 has an encode rate of 140 MSPS. - What is the analog bandwidth of the AD9983AKSTZ-170?
The analog bandwidth is 300 MHz. - What are the supported video resolutions?
The device supports all HDTV video modes up to 1080i and 720p, as well as graphics resolutions up to SXGA (1280 x 1024 at 75 Hz). - What is the operating temperature range of the AD9983AKSTZ-170?
The operating temperature range is from 0°C to 70°C. - How is the device controlled?
The device is controlled via a 2-wire serial interface (I2C). - What is the typical power dissipation of the AD9983AKSTZ-170?
The typical power dissipation is less than 800 mW. - What are the input voltage ranges for the analog inputs?
The input voltage range for the analog inputs is from 0.5 V to 1.0 V p-p. - Can the AD9983AKSTZ-170 handle 5V inputs?
Yes, certain digital inputs are 5V tolerant. - What type of outputs does the AD9983AKSTZ-170 have?
The device has three-state CMOS outputs compatible with 1.8 V to 3.3 V power supplies. - How are the analog inputs connected and routed?
The analog inputs should be connected using matched-impedance traces (typically 75 Ω) and resistively terminated (75 Ω to the signal ground return) with capacitive coupling through 47 nF capacitors.
