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ADV7180 Fiches technique(PDF) 1 Page - Analog Devices |
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ADV7180 Fiches technique(HTML) 1 Page - Analog Devices |
1 / 112 page 10-Bit, 4× Oversampling SDTV Video Decoder ADV7180 Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved. FEATURES 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) Three video input channels with 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 Adaptive Digital Line Length Tracking (ADLLT™), signal processing, and enhanced FIFO management give mini-TBC functionality 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, FIELD1 1.0 V analog input signal range Four general-purpose outputs (GPO)2 Full feature VBI data slicer with teletext support (WST) Power-down mode and ultralow sleep mode current 2-wire serial MPU interface (I2C® compatible) 1.8 V analog, 1.8 V PLL, 1.8 V digital, 3.3 V I/O supply −40°C to +85°C temperature grade Two package types: 40-lead, 6 mm × 6 mm, Pb-free LFCSP 64-lead, 10 mm × 10 mm, Pb-free LQFP APPLICATIONS Digital camcorders and PDAs Low-cost SDTV PIP decoder 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 FUNCTIONAL BLOCK DIAGRAM AIN1 AIN2 XTAL1 XTAL AIN3 AIN41 AIN51 AIN61 ANALOG VIDEO INPUTS AA FILTER AA FILTER AA FILTER DIGITAL PROCESSING BLOCK 2D COMB VBI SLICER COLOR DEMOD SCLK SDATA ALSB RESET PWRDWN 1ONLY AVAILABLE ON 64-LEAD PACKAGE. 240-LEAD PACKAGE USES ONE LEAD FOR VS/FIELD. 10-BIT, 86MHz ADC REFERENCE PLL ADLLT PROCESSING CLOCK PROCESSING BLOCK I2C/CONTROL ADV7180 SHA A/D VS LLC HS SFL INTRQ P7 TO P0 8-BIT/161-BIT PIXEL DATA FIELD2 GPO1 Figure 1. GENERAL DESCRIPTION The ADV7180 automatically detects and converts 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 gluelessly to a wide range of MPEG encoders, codecs, mobile video processors, and Analog Devices, Inc., digital video encoders, such as the ADV7179. External HS, VS, and FIELD signals provide timing references for LCD controllers and other video ASICs, if required The 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 up to 1.0 V. 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). The ADV7180 is fabricated in a 1.8 V CMOS process. Its monolithic CMOS construction ensures greater functionality with lower power dissipation. A chip-scale, 40-lead, Pb-free LFCSP package option makes the decoder ideal for space- constrained portable applications. A 64-lead LQFP package is also available (pin compatible with ADV7181B). 1 The ADV7180 LFCSP-40 uses one pin to output VS or FIELD. 2 ADV7180 LQFP-64 only. |
Numéro de pièce similaire - ADV7180 |
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Description similaire - ADV7180 |
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