adv7174 Analog Devices, Inc., adv7174 Datasheet

adv7174

Manufacturer Part Number

adv7174

Description

Chip Scale Pal/ntsc Video Encoder With Advanced Power Management

Manufacturer

Analog Devices, Inc.

Datasheet

1.ADV7174.pdf (52 pages)

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FEATURES

ITU-R

High quality 10-bit video DACs

SSAF™ (super sub-alias filter)

Advanced power management features

CGMS (copy generation management system)

WSS (wide screen signaling)

NTSC M, PAL N

Single 27 MHz clock required (×2 oversampling)

Macrovision 7.1 (ADV7174 only)

80 dB video SNR

32-bit direct digital synthesizer for color subcarrier

Multistandard video output support:

Video input data port supports:

Programmable simultaneous composite and S-video or RGB

Programmable luma filters low-pass [PAL/NTSC] notch,

Programmable chroma filters (low-pass [0.65 MHz, 1.0 MHz,

Programmable VBI (vertical blanking interval)

Protected by U.S. Patent Numbers 5,343,196 and 5,442,355 and other intellectual property rights.

Protected by U.S. Patent Numbers 4,631,603, 4,577,216, 4,819,098 and other intellectual property rights. The Macrovision anticopy process is licensed for

noncommercial home use only, which is its sole intended use in the device. Contact the sales office for the latest Macrovision version available.

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.

ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced CCIR recommendations).

Throughout the document, N is referenced to PAL – Combination – N.

ADV7174 only.

Composite (CVBS)

Component S-video (Y/C)

CCIR-656 4:2:2 8-bit parallel input format

(SCART)/YPbPr video outputs

extended SSAF, CIF, and QCIF

1.2 MHz, and 2.0 MHz], CIF, and QCIF)

BT601/BT656 YCrCb to PAL/NTSC video encoder

FIELD/VSYNC

COLOR

HSYNC

BLANK

RESET

P7–P0

DATA

, PAL B/D/G/H/I, PAL-M

POLATOR

4:2:2 TO

INTER-

4:4:4

MANAGEMENT

(SLEEP MODE)

VIDEO TIMING

GENERATOR

CONTROL

POWER

CLOCK

MATRIX

YCrCb

YUV

ADV7174/ADV7179

SCLOCK

, PAL 60

CGMS AND WSS

INSERTION

BLOCK

BURST

SYNC

C MPU PORT

ADD

SDATA

FUNCTIONAL BLOCK DIAGRAM

Chip Scale PAL/NTSC Video Encoder with

POLATOR

ALSB

INTER-

TTXREQ TTX

INSERTION

TELETEXT

BLOCK

SCRESET/RTC

Figure 1.

REAL-TIME

CONTROL

PROGRAMMABLE

CIRCUIT

CHROMINANCE

LUMINANCE

FILTER

Programmable subcarrier frequency and phase

Programmable LUMA delay

Individual on/off control of each DAC

CCIR and square pixel operation

Integrated subcarrier locking to external video source

Color signal control/burst signal control

Interlaced/noninterlaced operation

Complete on-chip video timing generator

Programmable multimode master/slave operation

Closed captioning support

Teletext insertion port (PAL-WST)

On-board color bar generation

On-board voltage reference

2-wire serial MPU interface (I

Single-supply 2.8 V and 3.3 V operation

Small 40-lead 6 mm × 6 mm LFCSP package

−40°C to +85°C at 3.3 V

−20°C to +85°C at 2.8 V

APPLICATIONS

Portable video applications

Mobile phones

Digital still cameras

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

Tel: 781.329.4700

Fax: 781.326.8703

Advanced Power Management

DDS BLOCK

SIN/COS

YUV TO

MATRIX

RBG

GND

ADV7174/ADV7179

REFERENCE

VOLTAGE

CIRCUIT

C® compatible and fast I

10-BIT

DAC

DAC A (PIN 29)

DAC B (PIN 28)

DAC C (PIN 24)

COMP

REF

SET

www.analog.com

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