ADV7194KSTZ datasheet(11/69 Pages) AD

부품명	ADV7194KSTZ

상세설명	Professional Extended-10 Video Encoder with 54 MHz Oversampling

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ADV7194

–11–

REV. A

DETAILED DESCRIPTION OF FEATURES

Clocking

Single 27 MHz Clock Required to Run the Device

4

Oversampling with Internal 54 MHz PLL

Square Pixel Operation

Advanced Power Management

Programmable Video Control Features

Digital Noise Reduction

Black Burst Signal Generation

Pedestal Level

Hue, Brightness, Contrast and Saturation

Clamping Output signal

VBI (Vertical Blanking Interval)

Subcarrier Frequency and Phase

LUMA Delay

CHROMA Delay

Gamma Correction

Luma and Chroma Filters

Luma SSAF (Super Subalias Filter)

Average Brightness Detection

Field Counter

Interlaced/Noninterlaced Operation

Complete On-Chip Video Timing Generator

Programmable Multimode Master/Slave Operation

CGMS (Copy Generation Management System)

WSS (Wide Screen Signaling)

Closed Captioning Support

Teletext Insertion Port (PAL-WST)

2-Wire Serial MPU Interface

(I2C Compatible and Fast I2C)

I

2C Registers Synchronized to VSYNC

I

N

T

E

R

P

O

L

A

T

O

R

MODULATOR

AND

HUE CONTROL

BRIGHTNESS

CONTROL

AND

ADD SYNC

AND

INTERPOLATOR

SATURATION

CONTROL

AND

ADD BURST

AND

INTERPOLATOR

PROGRAMMABLE

LUMA FILTER

AND

SHARPNESS

FILTER

PROGRAMMABLE

CHROMA

FILTER

SIN/COS

DDS

BLOCK

REAL-TIME

CONTROL

CIRCUIT

SCRESET/RTC/TR

I

N

T

E

R

P

O

L

A

T

O

R

M

U

L

T

I

P

L

E

X

E

R

YUV-TO-RGB

MATRIX

AND

YUV LEVEL

CONTROL

BLOCK

Y0–Y9

Cb0–Cb9

Cr0–Cr9

10-BIT

DAC

10-BIT

DAC

10-BIT

DAC

CONTROL

BLOCK

10-BIT

DAC

10-BIT

DAC

10-BIT

DAC

CONTROL

BLOCK

DAC A

DAC B

DAC C

VREF

RSET2

COMP2

DAC D

DAC F

DAC E

RSET1

COMP1

DNR

AND

GAMMA

CORRECTION

10

V

U

Y

YCrCb-

TO-

YUV

MATRIX

10

V

U

Y

PLL

DEMUX

10 10

10

TELETEXT

INSERTION

BLOCK

VIDEO TIMING

GENERATOR

CGMS/WSS

AND

CLOSED CAPTIONING

CONTROL

I2C MPU PORT

ALSB

SDA

SCL

PAL_NTSC

VSO/CLAMP

CSO_HSO

HSYNC

VSYNC

BLANK

RESET

TTX

TTXREQ

P0

P15

CLKIN

CLKOUT

ADV7194

Figure 5. Detailed Functional Block Diagram

GENERAL DESCRIPTION

The ADV7194 is an integrated Digital Video Encoder that con-

verts digital CCIR-601/656 4:2:2 10-bit (or 20-bit or 8-/16-bit)

component video data into a standard analog baseband television

signal compatible with worldwide standards. Additionally there

is the possibility to input video data in 3

× 10-bit YCrCb progres-

sive scan format to facilitate interfacing devices such as progressive

scan systems.

There are six DACs available on the ADV7194, each of which

is capable of providing 4.33 mA of current. In addition to the

composite output signal there is the facility to output S-Video

(Y/C Video), RGB Video, and YUV Video. All YUV formats

(SMPTE/EBU N10, MII, or Betacam) are supported.

The on-board SSAF (Super Subalias Filter) with extended

luminance frequency response and sharp stopband attenuation

enables studio quality video playback on modern TVs, giving

optimal horizontal line resolution. An additional sharpness

control feature allows high-frequency enhancement on the lumi-

nance signal.

SUBTRACT SIGNAL IN THRESHOLD

RANGE FROM ORIGINAL SIGNAL

FILTER OUTPUT

>THRESHOLD?

FILTER OUTPUT<

THRESHOLD

INPUT FILTER

BLOCK

MAIN SIGNAL PATH

NOISE SIGNAL PATH

Y DATA

INPUT

DNR OUT

ADD SIGNAL ABOVE THRESHOLD

RANGE TO ORIGINAL SIGNAL

DNR CONTROL

BLOCK SIZE CONTROL

BORDER AREA

BLOCK OFFSET

GAIN

CORING GAIN DATA

CORING GAIN BORDER

DNR SHARPNESS MODE

FILTER OUTPUT

<THRESHOLD?

FILTER OUTPUT>

THRESHOLD

INPUT FILTER

BLOCK

MAIN SIGNAL PATH

NOISE SIGNAL PATH

Y DATA

INPUT

DNR OUT

DNR CONTROL

BLOCK SIZE CONTROL

BORDER AREA

BLOCK OFFSET

GAIN

CORING GAIN DATA

CORING GAIN BORDER

DNR MODE

Figure 6. Block Diagram for DNR Mode and DNR Sharp-

ness Mode

유사한 부품 번호 - ADV7194KSTZ

제조업체	부품명	데이터시트	상세설명
Analog Devices	ADV7194KST	647Kb / 69P	Professional Extended-10??Video Encoder with 54 MHz Oversampling REV. 0

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ADV7194KSTZ 데이터시트(PDF) 11 Page - Analog Devices

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