Analog Devices Inc. ADV7180 Oversampling SDTV Video Decoders
Analog Devices ADV7180 Oversampling SDTV Video Decoders automatically detect and convert standard analog baseband television signals compatible with worldwide NTSC, PAL, and SECAM standards into 4:2:2 component video data compatible with the 8-bit ITU-R BT.656 interface standard.
The simple digital output interface connects to a wide range of MPEG encoders, codecs, mobile video processors, and Analog Devices, Inc., digital video encoders. External HS, VS, and FIELD signals provide timing references for LCD controllers and other videos ASICs if required. Accurate 10-bit analog-to-digital conversion provides professional-quality video performance for consumer applications with true 8-bit data resolution. Three analog video input channels accept standard composite, S-Video, or component video signals, supporting a wide range of consumer video sources. AGC and clamp-restore circuitry allow an input video signal peak-to-peak range to 1.0V. Alternatively, these can be bypassed for manual settings.
The line-locked clock output allows the output data rate, timing signals, and output clock signals to be synchronous, asynchronous, or line-locked even with ±5% line length variation. Output control signals allow glueless interface connections in many applications. The ADV7180 is programmed via a 2-wire, serial bidirectional port (I²C-compatible) and is fabricated in a 1.8V CMOS process. Its monolithic CMOS construction ensures greater functionality with lower power dissipation. LFCSP package options make the decoder ideal for space-constrained portable applications.
Analog Devices offers the EVAL-ADV7180LFEBZ for the 40-lead LFCSP ADV7180, EVAL-ADV7180LQEBZ for the 64-lead LQFP ADV7180, and EVAL-ADV7180-32EBZ for the 40-lead LFCSP ADV7180 to help designers evaluate the features of the ADV7180 video decoders.
Features
- Qualified for automotive applications
- Worldwide NTSC/PAL/SECAM color demodulation support
- One 10-bit ADC, 4× oversampling for CVBS, 2× oversampling for Y/C mode, and 2× oversampling for YPrPb (per channel)
- 3 video input channels with an on-chip antialiasing filter
- CVBS (composite), Y/C (S-Video), and YPrPb (component) video input support
- 5-line adaptive comb filters and CTI/DNR video enhancement
- Mini-TBC functionality provided by adaptive digital line length tracking (ADLLT), signal processing, and enhanced FIFO management
- Integrated AGC with adaptive peak white mode
- Macrovision copy protection detection
- NTSC/PAL/SECAM autodetection
- 8-bit ITU-R BT.656 YCrCb 4:2:2 output and HS, VS, and FIELD
- 1.0V analog input signal range
- Full-featured VBI data slicer with Teletext support (WST)
- Power-down mode and ultralow sleep mode current
- 2-wire serial MPU interface (I²C compatible)
- Single 1.8V supply possible
- 1.8V analog, 1.8V PLL, 1.8V digital, 1.8V to 3.3V I/O supply
- 10°C to +70°C commercial temperature grade
- 40°C to +85°C industrial/automotive-qualified temperature grade
- 40°C to +125°C temperature grade for automotive qualified
- 4 package types
- 64-lead, 10mm × 10mm, RoHS compliant LQFP
- 48-Lead, 7mm × 7mm, RoHS compliant LQFP
- 40-lead, 6mm × 6mm, RoHS compliant LFCSP
- 32-lead, 5mm × 5mm, RoHS compliant LFCSP
Applications
- Digital camcorders and PDAs
- Low-cost SDTV PIP decoders for digital TVs
- Multichannel DVRs for video security
- AV receivers and video transcoding
- PCI-/USB-based video capture and TV tuner cards
- Personal media players and recorders
- Smartphone/multimedia handsets
- In-car/automotive infotainment units
- Rearview camera/vehicle safety systems
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