In recent years, with the increasing popularity of high-definition interfaces, the older generation of VGA interfaces has gradually withdrawn from the historical arena. Recently introduced computers and mainframes have basically eliminated the VGA output interface, and replaced them with HDMI, DP, Type C and other interfaces. For the existing VGA interface display terminal, in order to continue to use it, it is necessary to use the interface converter. This article is a detailed disassembly of the STC HDMI to VGA converter.
USB powered chip conversion
Voltage conversion TD6810, one 1.2V, one 3.3V
HDMI receiver is compatible with HDMI 1.4 specification
VGA three 9-bit DACs with up to 200MHz pixel rate for analog RGB output. Synchronization signals can be provided in a separate or combined manner. Support VESA and CEA timing standards up to WUXGA 1920x1200 @ 60Hz reduction punching and 1920x1080 @ 60Hz
Audio encoder on chip that supports 2-channel IIS / S / PDIF audio output
VGA output conforms to VESA VSI v1r2 specification
SCM embedded to handle control logic
Support for device boot autoloading from on-chip flash firmware
Integrated data buffer
Amorphous structure
Support VGA connection detection
Support HDMI input detection
Supports automatic power saving mode and low standby current
Support YCC conversion to RGB color space in ITU-R BT.601 and 709
The IIC interface and HDMI slave DDC interface are available for debugging and firmware updates.
Low power architecture
RoHS and halogen free package
Available in a 40-pin QFN package (5 x 5 mm)
Audio decoding chip ES7144LV, responsible for decoding audio signals
STC hdmi to vga chip introduction:
Quintile CH7101B
The compact-designed portable STC HDMI to VGA adapter connects a computer, desktop, laptop, or other devices with HDMI port to a monitor, projector, HDTV, or other devices with VGA port; Tuck this lightweight gadget into your bag or pocket to do a business presentation with your laptop and projector, or extend your desktop screen to a monitor or TV; A VGA cable is required (sold separately)
The HDMI male to VGA female converter supports resolutions up to 1920x1080@60Hz (1080p Full HD) including 720p, 1600x1200, 1280x1024 for high definition monitors or projectors; Gold plated HDMI connector resists corrosion and abrasion and improves the signal transmission performance; Molded strain relief increases cable durability
The HDMI-VGA adapter is compatible with computer, pc, desktop, laptop, ultrabook, notebook, Chromebook, Raspberry Pi, Intel Nuc, Roku, PS3, Xbox One, Xbox 360, Wii U, Set Top Box, TV BOX, or other devices with HDMI port; NOT compatible with Blu-ray player and devices with low-power HDMI ports such as SONY PS4, Apple MacBook Pro with Retina Display, Mac mini, and Apple TV
Built-in advanced IC chip converts HDMI digital signal to VGA analog signal; It is NOT a bi-directional converter and cannot transmit signals from VGA to HDMI
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Post time: Mar-06-2019