AD9981
NOT RECOMMENDED FOR NEW DESIGNSHigh Performance 10-bit Display Interface
- Part Models
- 2
- 1ku List Price
- price unavailable
Part Details
- 10-bit analog-to-digital converters
- 95 MSPS maximum conversion rate
- 9% or less p-p PLL clock jitter at 95 MSPS
- Automated offset adjustment
- 2:1 input mux
- Power-down via dedicated pin or serial register
- 4:4:4, 4:2:2, and DDR output format modes
- Variable output drive strength
- Odd/even field detection
- External clock input
- Regenerated Hsync output
- Programmable output high impedance control
The AD9981 is a complete, 10-bit, 95 MSPS, monolithic analog interface optimized for capturing YPbPr video and RGB graphics signals. Its 95 MSPS encode rate capability and full-power analog bandwidth of 200 MHz supports all HDTV video modes and graphics resolutions up to XGA (1024 × 768 at 85 Hz).
The AD9981 includes a 95 MHz triple ADC with an internal reference, a PLL, programmable gain, offset, and clamp controls. The user provides only 3.3 V and 1.8 V power supplies and an analog input. Three-state CMOS outputs may be powered from 1.8 V to 3.3 V.
The AD9981’s on-chip PLL generates a sample clock from the three-level sync (for YPbPr video) or the horizontal sync (for RGB graphics). Sample clock output frequencies range from 10 MHz to 95 MHz. PLL clock jitter is 9% or less p-p typical at 95 MSPS.
With internal coast generation, the PLL maintains its output frequency in the absence of sync input. A 32-step sampling clock phase adjustment is provided. Output data, sync, and clock phase relationships are maintained.
The auto-offset feature can be enabled to automatically restore the signal reference levels and to automatically calibrate out any offset differences between the three channels. The AD9981 also offers full sync processing for composite sync and sync-on-green applications. A clamp signal is generated internally or may be provided by the user through the CLAMP input pin.
Fabricated in an advanced CMOS process, the AD9981 is provided in a space-saving, 80-pin, Pb-free, LQFP surface mount plastic package. It is specified over the 0°C to +70°C temperature range.
APPLICATIONS
- Advanced TVs
- Plasma display panels
- LCDTV
- HDTV
- RGB graphics processing
- LCD monitors and projectors
- Scan converters
Documentation
Data Sheet 1
Application Note 1
Technical Articles 1
Evaluation Design File 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD9981KSTZ-80 | 80-Lead LQFP (14mm x 14mm) | ||
| AD9981KSTZ-95 | 80-Lead LQFP (14mm x 14mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 10, 2010 - 10_0017 QFP Multigrade Laser Conversion |
||
| AD9981KSTZ-80 | Obsolete | |
| AD9981KSTZ-95 | Obsolete | |
|
Jun 8, 2009 - 09_0103 QFP Assembly Transfer from STATSChipPAC Singapore(SCS) to STATSChipPAC China(SCC), Amkor Philippines (ATP), and Amkor Korea (ATK) |
||
| AD9981KSTZ-80 | Obsolete | |
| AD9981KSTZ-95 | Obsolete | |
|
Jan 5, 2009 - 07_0077 Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages |
||
| AD9981KSTZ-80 | Obsolete | |
| AD9981KSTZ-95 | Obsolete | |
|
Jan 29, 2014 - 14_0014 ADI Corporate Obsolescence Notice-January 2014 (Standard Products) |
||
| AD9981KSTZ-80 | Obsolete | |
| AD9981KSTZ-95 | Obsolete | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 1
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| ADV7842 | RECOMMENDED FOR NEW DESIGNS | Dual HDMI 1.4 Fast Switching Receiver with 12-Bit, 170 MHz Video and Graphics Digitizer and 3D Comb Filter Decoder |
Evaluation Kits
AD9981 Evaluation Board