adv7188 Analog Devices, Inc., adv7188 Datasheet

adv7188

Manufacturer Part Number

adv7188

Description

Multiformat Sdtv Video Decoder With Fast Switch Overlay Support

Manufacturer

Analog Devices, Inc.

Datasheet

1.ADV7188.pdf (112 pages)

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BOSTOCK HK LIMITED

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adv7188BSTZ

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Analog Devices Inc

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FEATURES

Multiformat video decoder supports NTSC (J/M/4.43),

Integrates four 54 MHz, Noise Shaped Video (NSV®), 12-bit ADCs

SCART fast blank support

Clocked from a single 28.63636 MHz crystal

Line-locked clock-compatible (LLC)

Adaptive Digital Line Length Tracking (ADLLT™), signal

5-line adaptive comb filters

Proprietary architecture for locking to weak, noisy, and

Subcarrier frequency lock and status information output

Integrated automatic gain control (AGC) with adaptive peak

Macrovision® copy protection detection

Chroma transient improvement (CTI)

Digital noise reduction (DNR)

Multiple programmable analog input formats

12 analog video input channels

Integrated antialiasing filters

Programmable interrupt request output pin

GENERAL DESCRIPTION

The ADV7188 integrated video decoder 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 20-/16-/10-/8-bit

CCIR 601/CCIR 656.

The advanced, highly flexible digital output interface enables

performance video decoding and conversion in line-locked,

clock-based systems. This makes the device ideally suited for a

broad range of applications with diverse analog video character-

istics, including tape-based sources, broadcast sources, security

and surveillance cameras, and professional systems.

The accurate 12-bit ADC provides professional quality video

performance and is unmatched. This allows true 10-bit

resolution in the 10-bit output mode.

The 12 analog input channels accept standard composite, S-video,

and component video signals in an extensive number of

combinations.

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

PAL (B/D/G/H/I/M/N), SECAM

processing, and enhanced FIFO management give

mini-TBC functionality

unstable video sources such as VCRs and tuners

white mode

CVBS (composite video)

Y/C (S-video)

YPrPb (component) (VESA, MII, SMPTE, and BETACAM)

with Fast Switch Overlay Support

Multiformat SDTV Video Decoder

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

Automatic NTSC/PAL/SECAM identification

Digital output formats (8-bit, 10-bit, 16-bit, or 20-bit)

0.5 V to 1.6 V analog signal input range

Differential gain: 0.4% typical

Differential phase: 0.4° typical

Programmable video controls

Integrated on-chip video timing generator

Free-run mode (generates stable video output with no input)

VBI decode support for close captioning (including Gemstar®

Power-down mode

2-wire serial MPU interface (I

3.3 V analog, 1.8 V digital core, 3.3 V input/output supply

Industrial temperature grade: −40°C to +85°C

80-lead, Pb-free LQFP

APPLICATIONS

High end DVD recorders

Video projectors

HDD-based PVRs/DVDRs

LCD TVs

Set-top boxes

Professional video products

AVR receiver

AGC and clamp-restore circuitry allow an input video signal

peak-to-peak range of 0.5 V to 1.6 V. Alternatively, these can be

bypassed for manual settings.

The fixed 54 MHz clocking of the ADCs and datapath for all

modes allows very precise, accurate sampling and digital filtering.

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% variation in line length. The output

control signals allow glueless interface connections in most

applications. The ADV7188 modes are set up over a 2-wire,

serial, bidirectional port (I

SCART and overlay functionality are enabled by the ability of

the ADV7188 to process CVBS and standard definition RGB

signals simultaneously. Signal mixing is controlled by the fast

blank pin. The ADV7188 is fabricated in a 3.3 V CMOS process.

Its monolithic CMOS construction ensures greater functionality

with lower power dissipation. It is packaged in a small, Pb-free,

80-lead LQFP.

ITU-R BT.656 YCrCb 4:2:2 output + HS, VS, and FIELD

Peak white/hue/brightness/saturation/contrast

1×/2× (XDS)), WSS, CGMS, teletext, VITC, VPS

C compatible).

C® compatible)

ADV7188

www.analog.com

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