HDG-4000 ANALOG/DIGITAL VIDEO CALIBRATION GENERATOR USER MANUAL
4
10-Bit Analog Video DACs & Separate Sync Generation
The YPbPr and RGB analog component video signals, and the Y component of Y/C and CVBS signals, are
generated by 10-bit Digital to Analog Converters from internal 10-bit 4:4:4 YPbPr and RGB digital signals.
The analog embedded sync signals are produced without using any of the 10-bit video DAC dynamic range.
Other generators may trade-off 30% of the video signal resolution to generate sync signals, or use 8-bit
Digital to Analog Converters with less resolution or linearity.
Direct-Drive Digital (D
3
)
Pattern Generation
All video patterns & sync signal timing is generated using three low-noise, high-stability, crystal oscillator
clocks. There are separate oscillators for 480i/p and 576i/p, for 59.94 Hz based high-definition (HD) formats,
and for 50.00/60.00 Hz based HD formats, per applicable SMPTE and EIA/CEA standards. A proprietary
AccuPel 30-bit digital RGB/YPbPr pattern generation IC directly drives precision 10-bit resolution Digital-to-
Analog Converters for analog component video output. Completely separate 24-bit RGB-Video, RGB-PC,
and YCbCr digital values directly drive the digital video output transmitter without any digital truncation or
conversion errors. No clock synthesizers, format converters, color-space converters, or frame buffers are
used to ensure maximum signal accuracy.
Professional Quality Analog Signal Interfaces
True 75-ohm BNC signal outputs provide the highest-quality analog YPbPr or RGB interface to front
projectors and other displays over long cable runs. All analog YPbPr or RGB signals are simultaneously
available through the DVI-I output connector to drive a separate monitor or test system. All video and HV
sync signals are 75-ohm reverse terminated for optimum pulse fidelity.
Infrared Remote Control
The 41-key IR remote control provides dedicated buttons to directly select each Output mode, Format mode,
Pattern Group, and individual patterns within the current group. There are also dedicated rocker buttons to
move forward or backward through Groups or Patterns. A user-defined Pattern List provides the easiest way
to switch back and forth between several patterns as you work. A single button push will store or delete up
to 6 patterns from a Pattern List, and then move forward or backward through the user-defined Pattern List.
The IR remote control also provides dedicated buttons to enter User-defined Luma and Color values, select
special features, and to navigate the On-Screen-Display (OSD) menus.
Detailed documentation for the IR remote control can be downloaded from the AccuPel website at
www.accupel.com
.
OSD Menus
OSD (On-Screen-Display) menus provide access to many advanced features including the ability to specify
user defined Luma and Color values, choose Y/C and CVBS chroma bandwidths, enable/disable output
channels, select sync options, set power up default modes, and configure the serial interface ports.
USB & RS-232C Serial Control Interfaces
The USB and RS-232 Serial Control Interfaces provide full operation of all HDG-4000 functions, including
direct selection of each pattern. Complete documentation for the Serial Interfaces can be downloaded from
the AccuPel website
www.accupel.com
.
