ADV7281 Datasheet, PDF (1/32 Pages) Analog Devices – 10-Bit, 4 Oversampled SDTV Video Decoder with Differential Inputs

Data Sheet
10-Bit, 4× Oversampled SDTV Video
Decoder with Differential Inputs
ADV7281
FEATURES
Worldwide NTSC/PAL/SECAM color demodulation support
One 10-bit analog-to-digital converter (ADC), 4× oversampling
per channel for CVBS, Y/C, and YPrPb modes
Analog video input channels with on-chip antialiasing filter
ADV7281: up to 4 input channels
ADV7281-M: up to 6 input channels
ADV7281-MA: up to 8 input channels
Video input support for CVBS (composite), Y/C (S-Video),
and YPrPb (component)
Fully differential, pseudo differential, and single-ended
CVBS video input support
NTSC/PAL/SECAM autodetection
Short-to-battery (STB) diagnostics on 2 video inputs
(ADV7281 and ADV7281-M only)
Up to 4 V common-mode input range solution
Excellent common-mode noise rejection capabilities
5-line adaptive 2D comb filter and CTI video enhancement
Adaptive Digital Line Length Tracking (ADLLT), signal
processing, and enhanced FIFO management provide
mini-time base correction (TBC) functionality
Integrated automatic gain control (AGC) with adaptive
peak white mode
Fast switching capability
Adaptive contrast enhancement (ACE)
Down dither (8-bit to 6-bit)
Rovi (Macrovision) copy protection detection
MIPI CSI-2 output interface (ADV7281-M and ADV7281-MA)
8-bit ITU-R BT.656 YCrCb 4:2:2 output (ADV7281)
Full featured vertical blanking interval (VBI) data slicer
Power-down mode available
2-wire, I²C-compatible serial interface
Qualified for automotive applications
−40°C to +105°C temperature grade
32-lead, 5 mm × 5 mm, RoHS-compliant LFCSP
APPLICATIONS
Smartphone/multimedia handsets
Automotive infotainment
DVRs for video security
Media players
GENERAL DESCRIPTION
The ADV7281/ADV7281-M/ADV7281-MA are versatile
one-chip, multiformat video decoders. The ADV7281/
ADV7281-M/ADV7281-MA automatically detect standard
analog baseband video signals compatible with worldwide
NTSC, PAL, and SECAM standards in the form of composite,
S-Video, and component video.
The ADV7281 converts the analog video signals into a YCrCb
4:2:2 video data stream that is compatible with the 8-bit ITU-R
BT.656 interface standard.
The ADV7281-M/ADV7281-MA convert the analog video
signals into an 8-bit YCrCb 4:2:2 video data stream that is
output over a mobile industry processor interface (MIPI®)
CSI-2 interface.
The analog video inputs of the ADV7281/ADV7281-M/
ADV7281-MA accept single-ended, pseudo differential, and
fully differential signals. The ADV7281 provides four analog
inputs and two STB diagnostic pins. The ADV7281-M provides
six analog inputs, two STB diagnostic pins, and three general-
purpose outputs. The ADV7281-MA provides eight analog
inputs and three general-purpose outputs.
The ADV7281/ADV7281-M/ADV7281-MA are programmed
via a 2-wire, serial bidirectional port (I²C compatible) and are
fabricated in a 1.8 V CMOS process. The LFCSP package option
makes these decoders ideal for space-constrained portable
applications.
Rev. A
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