ADV7604 Data Sheet
Rev. D | Page 18 of 20
RGB GRAPHICS PROCESSING
The ADV7604 provides automatic detection of synchronization
source and polarity by the SSPD block, standard identification
that is enabled by the STDI blocks, optimum pixel sample through
a 32-phase DLL, and arbitrary pixel sampling for nonstandard
video sources. A data enable (DE) output signal is supplied for
direct connection to the HDMI/DVI transmitter IC.
The following additional graphics functions are provided:
• Automatic or manual clamp and gain controls for
graphics modes
• Contrast and brightness controls
• A 170 MSPS conversion rate that supports RGB input
resolutions up to 1600 × 1200 at 60 Hz (UXGA)
• Color space conversion of RGB to YCrCb and decimation
to a 4:2:2 format for video-centric back end IC interfacing
ENHANCED STANDARD DEFINITION PROCESSOR
The ESDP is designed to provide robust synchronization
separation capability for component video input modes that are
likely to have an unstable time base. These are component signals
that have originated from CVBS signals such as noisy/weak RF
signals or VCR signals with head switches. The ESDP is available
for SD (480i, 576i) and ED (480p, 576p) component video input
modes with embedded synchronization because these are most
likely to suffer from timing impairments.
The ESDP contains circuitry for identifying characteristics of
the input signal, and these are then used within the device to
automatically configure it optimally for different inputs. It uses
digitally controlled analog clamping to maximize the range of
the video signal within the ADC. This effectively compensates
for the poor signal quality that may be present on the input.
I
2
C INTERFACE
The ADV7604 supports a 2-wire serial (I
2
C-compatible)
microprocessor bus driving multiple peripherals. The
ADV7604 is controlled by an external I
2
C master device,
such as a microcontroller.
OTHER FEATURES
In addition to HS, VS, and FIELD output signals with program-
mable position, polarity, and width, the ADV7604 provides the
following:
• Programmable interrupt request output pins: INT1 and IN T2
• Low power consumption: 1.8 V digital core, 1.8 V analog
and 3.3 V digital input/output, low power power-down
mode, and green PC mode
• Temperature range: −40°C to +70°C
• 15 mm × 15 mm, RoHS-compliant BGA package
For more detailed product information about the ADV7604,
contact a local Analog Devices, Inc., sales office.
