Overview
The AD9984AKSTZ-140, produced by Analog Devices Inc., is a high-performance 10-bit display interface optimized for capturing YPbPr video and RGB graphics signals. This monolithic analog interface features a 170 MSPS triple ADC with an internal reference, a PLL, and programmable gain, offset, and clamp control. It supports all HDTV video modes up to 1080p and graphics resolutions up to UXGA (1600 × 1200 at 60 Hz) with a full power analog bandwidth of 300 MHz. The device operates with a single 1.8 V power supply and provides three-state CMOS outputs that can be powered from 1.8 V to 3.3 V.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 10 | 10 | 10 | Bits |
| LSB Size | 0.098 | 0.098 | 0.098 | % of full scale (FS) |
| Differential Nonlinearity (25°C) | ±0.6 | +1.8/−1.0 | +1.9/−1.0 | LSB |
| Integral Nonlinearity (25°C) | ±2.35 | ±7.0 | ±8.5 | LSB |
| Analog Input Voltage Range | 0.5 | 1.0 | V p-p | |
| Gain Tempco (25°C) | 125 | 125 | ppm/°C | |
| Input Bias Current (25°C) | 1 | 1 | μA | |
| Supply Voltage (VD, VDD, PVD, DAVDD) | 1.7 | 1.8 | 1.9 | V |
| Supply Current (ID, IDD, IPVD, IDAVDD) at 25°C | 250 | 255 | mA | |
| Operating Temperature Range | 0 | 70 | °C | |
| Package Type | 80-Lead LQFP |
Key Features
- 10-bit, 170 MSPS triple ADC with internal reference and PLL for generating sample clock from tri-level sync or horizontal sync.
- Programmable gain, offset, and clamp control for precise signal adjustment.
- Auto-offset and auto channel-to-channel gain-matching features to minimize signal discrepancies.
- Full sync processing for composite sync and sync-on-green applications.
- Three-state CMOS outputs operable from 1.8 V to 3.3 V power supply.
- Internal coast generation to maintain PLL output frequency in the absence of sync input.
- 32-step sampling clock phase adjustment.
- Pb-free, 80-lead low profile quad flat package (LQFP) or 64-lead lead frame chip scale package (LFCSP).
Applications
- Capturing YPbPr video and RGB graphics signals.
- Supports all HDTV video modes up to 1080p and graphics resolutions up to UXGA (1600 × 1200 at 60 Hz).
- Ideal for high-definition video and graphics processing in various consumer and professional display systems.
Q & A
- What is the resolution and sampling rate of the AD9984AKSTZ-140?
The AD9984AKSTZ-140 has a 10-bit resolution and a sampling rate of up to 170 MSPS.
- What types of video and graphics signals does the AD9984AKSTZ-140 support?
The device supports YPbPr video and RGB graphics signals, including all HDTV video modes up to 1080p and graphics resolutions up to UXGA (1600 × 1200 at 60 Hz).
- What is the power supply requirement for the AD9984AKSTZ-140?
The device operates with a single 1.8 V power supply, and the CMOS outputs can be powered from 1.8 V to 3.3 V.
- Does the AD9984AKSTZ-140 have programmable gain and offset control?
Yes, the device features programmable gain, offset, and clamp control for precise signal adjustment.
- What is the operating temperature range of the AD9984AKSTZ-140?
The operating temperature range is from 0°C to 70°C.
- What package types are available for the AD9984AKSTZ-140?
The device is available in an 80-lead low profile quad flat package (LQFP) and a 64-lead lead frame chip scale package (LFCSP).
- Does the AD9984AKSTZ-140 have internal coast generation for the PLL?
Yes, the device has internal coast generation to maintain the PLL output frequency in the absence of a sync input.
- What is the purpose of the auto-offset and auto channel-to-channel gain-matching features?
These features are used to automatically restore signal reference levels and calibrate out any offset and gain mismatches between the three channels.
- Is the AD9984AKSTZ-140 Pb-free and RoHS compliant?
Yes, the device is Pb-free and RoHS compliant.
- What is the input voltage range for the analog inputs of the AD9984AKSTZ-140?
The input voltage range for the analog inputs is from 0.5 V to 1.0 V full scale.
