Datenblatt-pdf.com


ADV7194 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADV7194
Beschreibung Professional Extended-10 Video Encoder
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 30 Seiten
ADV7194 Datasheet, Funktion
a Professional Extended-10
Video Encoder with 54 MHz Oversampling
ADV7194
FEATURES
10-Bit Extended CCIR-656 Input Data Port
Six High-Quality 10-Bit Video DACs
10-Bit Internal Digital Video Processing
Multistandard Video Input
Multistandard Video Output
4؋ Oversampling with Internal 54 MHz PLL
Programmable Video Control Includes:
Digital Noise Reduction
Gamma Correction
Black Burst
LUMA Delay
CHROMA Delay
Multiple Luma and Chroma Filters
Luma SSAF™ (Super Sub-Alias Filter)
Average Brightness Detection
Field Counter
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)
Supply Voltage 5 V and 3.3 V Operation
80-Lead LQFP Package
APPLICATIONS
Professional DVD Playback Systems
PC Video/Multimedia Playback Systems
Progressive Scan Playback Systems
Professional Studio Equipment
GENERAL DESCRIPTION
The ADV7194 is part of the new generation of video encoders
from Analog Devices. The device builds on the performance of
previous video encoders and provides new features like inter-
facing progressive scan devices, digital noise reduction, gamma
correction, 4× oversampling and 54 MHz operation, average
brightness detection, black burst signal generation, chroma delay,
an additional Chroma Filter, etc.
The ADV7194 supports NTSC-M, NTSC-N (Japan), PAL N,
PAL-B/D/G/H/I and PAL-60 standards. Input standards sup-
ported include ITU-R.BT656 4:2:2 YCrCb in 8-, 10-, 16- or
20-bit format and 3× 10-bit YCrCb progressive scan format.
The ADV7194 can output composite video (CVBS), S-Video
(Y/C), Component YUV or RGB and analog progressive scan in
YPrPb format. The analog component output is also compatible
with Betacam, MII and SMPTE/EBU N10 levels, SMPTE 170M
NTSC and ITU-R.BT 470 PAL.
For more information about the ADV7194’s features refer to
Detailed Description of Features section.
SIMPLIFIED BLOCK DIAGRAM
DIGITAL
INPUT
27MHz
CLOCK
ITU–R.BT
656/601
10-BIT YCrCb
IN 4:2:2 FORMAT
VIDEO
INPUT
PROCESSING
VIDEO
SIGNAL
PROCESSING
VIDEO
OUTPUT
PROCESSING
PLL
AND
54MHz
DEMUX
AND
YCrCb-
TO-
YUV
MATRIX
COLOR CONTROL
DNR
GAMMA
CORRECTION
VBI
TELETEXT
CLOSED CAPTION
CGMS/WSS
CHROMA
LPF
SSAF
LPF
LUMA
LPF
2؋
OVERSAMPLING
OR
4؋
OVERSAMPLING
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
I2C INTERFACE
ADV7194
ANALOG
OUTPUT
COMPOSITE VIDEO
Y [S-VIDEO]
C [S-VIDEO]
RGB
YUV
YPrPb
TV SCREEN
OR
PROGRESSIVE
SCAN DISPLAY
Extended-10 is a trademark of Analog Devices, Inc. This technology combines 10-bit conversion, 10-bit digital video data processing, and 10-bit external interfacing.
SSAF is a trademark of Analog Devices Inc.
ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced CCIR recommendations).
I2C is a registered trademark of Philips Corporation.
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001






ADV7194 Datasheet, Funktion
ADV7194
5 V DYNAMIC SPECIFICATIONS1
(VAA = 5 V ؎ 250 mV, VREF = 1.235 V, RSET1,2 = 1200 unless otherwise noted. All
specifications TMIN to TMAX2 unless otherwise noted.)
Parameter
Min Typ
Max
Hue Accuracy
Color Saturation Accuracy
Chroma Nonlinear Gain
Chroma Nonlinear Phase
Chroma/Luma Intermod
Chroma/Luma Gain Ineq
Chroma/Luma Delay Ineq
Luminance Nonlinearity
Chroma AM Noise
Chroma PM Noise
Differential Gain3
Differential Phase3
SNR (Pedestal)3
SNR (Ramp)3
0.5
0.7
0.7 0.9
0.5
0.1
1.7
2.2
0.6 0.7
82
72
0.1 (0.4) 0.3 (0.5)
0.4 (0.15) 0.5 (0.3)
78.5 (78)
78 (78)
61.7 (61.7)
62 (63)
NOTES
1All measurements are made in 4× Oversampling Mode unless otherwise specified.
2Temperature range TMIN to TMAX: 0°C to 70°C.
3Values in parentheses apply to 2× Oversampling Mode.
Specifications subject to change without notice.
Unit
Degrees
%
±%
± Degrees
±%
±%
ns
±%
dB
dB
%
Degrees
dB rms
dB p-p
dB rms
dB p-p
Test Conditions
Referenced to 40 IRE
RMS
Peak Periodic
RMS
Peak Periodic
3.3 V DYNAMIC SPECIFICATIONS1
(VAA = 3.3 V ؎ 150 mV, VREF = 1.235 V, RSET1,2 = 1200 unless otherwise noted. All
specifications TMIN to TMAX2 unless otherwise noted.)
Parameter
Min Typ
Hue Accuracy
Color Saturation Accuracy
Luminance Nonlinearity
Chroma AM Noise
Chroma PM Noise
Chroma Nonlinear Gain
Chroma Nonlinear Phase
Chroma/Luma Intermod
Differential Gain3
Differential Phase3
SNR (Pedestal)3
SNR (Ramp)3
0.5
0.8
0.6
83
71
0.7
0.5
0.1
0.2 (0.5)
0.5 (0.2)
78.5 (78)
78 (78)
62.3 (62)
61 (62.5)
NOTES
1All measurements are made in 4× Oversampling Mode unless otherwise specified.
2Temperature range TMIN to TMAX: 0°C to 70°C.
3Values in brackets apply to 2× Oversampling Mode.
Specifications subject to change without notice.
Max
Unit
Degrees
%
±%
dB
dB
±%
± Degrees
±%
%
Degrees
dB rms
dB p-p
dB rms
dB p-p
Test Conditions
Referenced to 40 IRE
RMS
Peak Periodic
RMS
Peak Periodic
REV. A
–5–

6 Page









ADV7194 pdf, datenblatt
ADV7194
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)
I2C Registers Synchronized to VSYNC
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.
Y DATA
INPUT
DNR MODE
DNR CONTROL
GAIN
BLOCK SIZE CONTROL CORING GAIN DATA
BORDER AREA
CORING GAIN BORDER
BLOCK OFFSET
NOISE SIGNAL PATH
INPUT FILTER
BLOCK
MAIN SIGNAL PATH
SUBTRACT SIGNAL IN THRESHOLD
RANGE FROM ORIGINAL SIGNAL
FILTER OUTPUT
<THRESHOLD?
FILTER OUTPUT>
THRESHOLD
DNR OUT
DNR SHARPNESS MODE
Y DATA
INPUT
DNR CONTROL
GAIN
BLOCK SIZE CONTROL CORING GAIN DATA
BORDER AREA
CORING GAIN BORDER
BLOCK OFFSET
NOISE SIGNAL PATH
INPUT FILTER
BLOCK
ADD SIGNAL ABOVE THRESHOLD
RANGE TO ORIGINAL SIGNAL
FILTER OUTPUT
>THRESHOLD?
MAIN SIGNAL PATH
FILTER OUTPUT<
THRESHOLD
DNR OUT
Figure 6. Block Diagram for DNR Mode and DNR Sharp-
ness Mode
PAL_NTSC VSO/CLAMP CSO_HSO
SCL SDA ALSB
Cr0Cr9 Cb0Cb9 Y0Y9
HSYNC
VSYNC
BLANK
RESET
TTX
TTXREQ
P0
P15
CLKIN
CLKOUT
VIDEO TIMING
GENERATOR
TELETEXT
INSERTION
BLOCK
10
YCrCb- Y
TO- 10
YUV U
MATRIX 10
V
10
DNR
Y
AND
10
GAMMA U
CORRECTION 10
V
10 10 10
CGMS/WSS
AND
CLOSED CAPTIONING
CONTROL
I2C MPU PORT
BRIGHTNESS
CONTROL
AND
ADD SYNC
AND
INTERPOLATOR
PROGRAMMABLE
LUMA FILTER
AND
SHARPNESS
FILTER
YUV-TO-RGB
MATRIX
AND
YUV LEVEL
CONTROL
BLOCK
SATURATION
CONTROL
AND
ADD BURST
AND
INTERPOLATOR
PROGRAMMABLE
CHROMA
FILTER
MODULATOR
AND
HUE CONTROL
DEMUX
REAL-TIME
SIN/COS
PLL
ADV7194
CONTROL
CIRCUIT
DDS
BLOCK
M
U
L
T
I
P
L
E
X
E
R
I
N
T
E
R
P
O
L
A
T
IO
NR
T
E
R
P
O
L
A
T
O
R
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
DAC
CONTROL
BLOCK
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
DAC
CONTROL
BLOCK
DAC A
DAC B
DAC C
VREF
RSET2
COMP2
DAC D
DAC F
DAC E
RSET1
COMP1
SCRESET/RTC/TR
Figure 5. Detailed Functional Block Diagram
REV. A
–11–

12 Page





SeitenGesamt 30 Seiten
PDF Download[ ADV7194 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
ADV7190Video EncoderAnalog Devices
Analog Devices
ADV7191Video EncoderAnalog Devices
Analog Devices
ADV7192Video Encoder with Six 10-Bit DACs/ 54 MHz Oversampling and Progressive Scan InputsAnalog Devices
Analog Devices
ADV7194Professional Extended-10 Video EncoderAnalog Devices
Analog Devices
ADV7195Multiformat Progressive Scan/HDTV EncoderAnalog Devices
Analog Devices

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche