FEATURES

Worldwide NTSC/PAL/SECAM color demodulation support

One 10-bit analog-to-digital converter (ADC), 4× oversampling

per channel for CVBS, Y/C mode, and YPrPb

Four analog video input channels with on-chip antialiasing filter

CVBS (composite), Y/C (S-Video), and YPrPb (component) video

input support

Fully differential, pseudo differential, and single-ended CVBS video input support Up to 4 V common-mode input range solution Excellent common-mode rejection capabilities

Five-line adaptive comb filters and CTI/DNR video enhancement TBC functionality provided by adaptive digital line length

tracking (ADLLT), signal processing, and enhanced first in,

first out (FIFO) management

Integrated automatic gain control (AGC) with adaptive peak white mode Video fast switch capability Adaptive contrast enhancement (ACE) Down dither (8 bits to 6 bits) RoviTM (Macrovision) copy protection detection NTSC/PAL/SECAM autodetection

8-bit ITU-R BT.656 YCrCb 4:2:2 output and HS, VS, or FIELD Full-featured VBI data slicer with teletext support (WST)

Power-down mode and ultralow sleep mode current

Two-wire serial MPU interface (I2C compatible)

Single 1.8 V supply possible

Automotive qualified models available −40°C to +105°C automotive temperature grade −40°C to +85°C industrial qualified temperature grade 32-lead, 5 mm × 5 mm, RoHS-compliant LFCSP

APPLICATIONS

Automotive infotainment

DVRs for video security Media players

GENERAL DESCRIPTION

The ADV7182 automatically detects and converts standard analog baseband video signals compatible with worldwide NTSC, PAL, and SECAM standards into a 4:2:2 component video data stream. This video data stream is compatible with the 8-bit ITU-R BT.656 interface standard.

External HS, VS, and FIELD signals can provide timing references for LCD controllers and other video ASICs. The accurate 10-bit analog-to-digital conversion provides professional quality video performance for consumer applications with true 8-bit data resolution. The analog video inputs accept both single-ended, pseudo-differential, and fully differential composite video signals as well as S-Video and YPbPr video signals, supporting a wide range of consumer and automotive video sources.

The ADV7182 along with an external resistor divider provide a common-mode input range of 4 V, enabling the removal of large signal, common-mode transients present on the video lines. Common-mode rejection (CMR) values of up to 80 dB can be achieved without the need for external amplifier circuitry.

The AGC and clamp restore circuitry allow an input video signal peak-to-peak range to 1.0 V at the analog video input pin of the ADV7182. Alternatively, these can be bypassed for manual settings.

The ADV7182 can be protected from short-to-battery (STB) events with standard ac coupling capacitors.

The ADV7182 is programmed via a two-wire, serial bidirectional port (I2C® compatible) and is fabricated in a 1.8 V CMOS process. Its monolithic CMOS construction ensures greater functionality with lower power dissipation.

The ADV7182 is provided in a space-saving LFCSP surface-mount, RoHS compliant package. The ADV7182 is available in an automo-tive grade that is rated over the −40°C to +105°C temperature range. This makes the ADV7182 ideal for automive applications. The ADV7182 is also available in a −40°C to +85°C temperature range, making it ideal for industrial applications.

The ADV7182 is a versatile one-chip multiformat video decoder that automatically detects PAL, NTSC, and SECAM standards in the form of composite, S-Video, and component video. The ADV7182 can receive composite signals in either single-ended or differential modes. This makes the ADV7182 ideal for automotive applications.

The ADV7182 converts these analog video formats into a digital 8-bit ITU-R BT.656 video stream.

The digital video output stream of the ADV7182 interfaces easily to a wide range of MPEG encoders, codecs, mobile video processors, and Analog Devices, Inc., digital video encoders, such as the ADV7391. External HS, VS, and FIELD signals provide timing references for LCD controllers and other video ASICs.