Harman Kardon AVR 247, Service Manual

Page: 170 / 206

Multiformat 11-Bit
HDTV Video Encoder
Preliminary Technical Data
ADV7322
Rev. PrA
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.
FEATURES
High definition input formats
16-, 24-bit (4:2:2, 4:4:4) parallel YCrCb
Fully compliant with
SMPTE 274M (1080i, 1080p @ 74.25 MHz)
SMPTE 296M (720p)
SMPTE 240M (1035i)
RGB in 3- × 8-bit 4:4:4 input format
HDTV RGB supported
RGB, RGBHV
Other high definition formats using async
timing mode
Enhanced definition input formats
8-, 16-, 24-bit (4:2:2, 4:4:4) parallel YCrCb
SMPTE 293M (525p)
BTA T-1004 EDTV2 (525p)
ITU-R BT.1358 (625p/525p)
ITU-R BT.1362 (625p/525p)
RGB in 3- × 8-bit 4:4:4 input format
Standard definition input formats
CCIR-656 4:2:2 8-bit or 16-bit parallel input
High definition output formats
YPrPb HDTV (EIA 770.3)
RGB, RGBHV
CGMS-A (720p/1080i)
Enhanced definition output formats
Macrovision Rev 1.2 (525p/625p)
CGMS-A (525p/625p)
YPrPb progressive scan (EIA-770.1, EIA-770.2)
RGB, RGBHV
Standard definition output formats
Composite NTSC M/N
Composite PAL M/N/B/D/G/H/I, PAL-60
SMPTE 170M NTSC-compatible composite video
ITU-R BT.470 PAL-compatible composite video
S-video (Y/C)
EuroScart RGB
Component YPrPb (Betacam, MII, SMPTE/EBU N10)
Macrovision Rev 7.1.L1
CGMS/WSS
Closed captioning
GENERAL FEATURES
Simultaneous SD/HD, PS/SD inputs and outputs
Oversampling up to 216 MHz
Programmable DAC gain control
Sync outputs in all modes
On-board voltage reference
Six 11-bit precision video DACs
2-wire serial I
2
C® interface, open-drain configuration
Dual I/O supply 2.5 V/3.3 V operation
Analog and digital supply 2.5 V
On-board PLL
64-lead LQFP package
Lead (Pb)-free product
APPLICATIONS
EVD players (enhanced versatile disk)
SD/PS DVD recorders/players
SD/progressive scan/HDTV display devices
SD/HDTV set top boxes
CLKIN_A
CLKIN_B
HSYNC
VSYNC
BLANK
Y7–Y0
C7–C0
S7–S0
TIMING
GENERATOR
PLL
O
V
E
R
S
A
M
P
L
I
N
G
I
2
C
INTERFACE
D
E
M
U
X
STANDARD DEFINITION
CONTROL BLOCK
COLOR CONTROL
BRIGHTNESS
DNR
GAMMA
PROGRAMMABLE
FILTERS
SD TEST PATTERN
HIGH DEFINITION
CONTROL BLOCK
HD TEST PATTERN
COLOR CONTROL
ADAPTIVE FILTER CTRL
SHARPNESS FILTER
PROGRAMMABLE
RGB MATRIX
11-BIT
DAC
11-BIT
DAC
11-BIT
DAC
11-BIT
DAC
11-BIT
DAC
11-BIT
DAC
ADV7322
05067-001
Figure 1. Simplified Functional Block Diagram
GENERAL DESCRIPTION
The ADV®7322 is a high speed, digital-to-analog encoder on a
single monolithic chip. It includes six high speed video DACs
with TTL compatible inputs. It has separate 8-, 16-, 24-bit input
ports that accept data in high definition and/or standard
definition video format. For all standards, external horizontal,
vertical, and blanking signals or EAV/SAV timing codes control
the insertion of appropriate synchronization signals into the
digital data stream and therefore the output signal.
170
AVR247
harman/kardon