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PDF CH7036A-BF Data sheet ( Hoja de datos )

Número de pieza CH7036A-BF
Descripción LVDS to HDMI/VGA/LVDS Converter
Fabricantes Chrontel 
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No Preview Available ! CH7036A-BF Hoja de datos, Descripción, Manual

Chrontel
CH7036
Brief Datasheet
CH7036 LVDS to HDMI/VGA/LVDS Converter
FEATURES
Single channel 18-bit/24-bit LVDS receiver and
transmitter support display resolution up to
1366x768
HDMI Transmitter are compliant with HDMI 1.4
specification and DVI 1.0 specification
HDMI Tx supports up to 1920x1080@60Hz
Supports VGA display up to 1080p
DDC master for reading EDID
Supports Hot Plug Detection (HPD) for
HDMI/DVI
Optional HDCP specification version 1.4 function
Three 10-bit high speed DACs
DACs can be switched off through programming
internal registers. A separated composite sync is
supported
Monitor connection detection capability.
Connection status can be retrieved through
device’s internal registers
Pixel-level color enhancement for brightness and
contrast (analog RGB only)
SPDIF audio interface supports up to 20-bit data
stream 192kHz/2ch
Supports I2S digital audio input up to 24-bit data
stream (32kHz/2ch, 44.1kHz/2ch, 48kHz/2ch,
88.2kHz/2ch, 96kHz/2ch, 176.4kHz/2ch and
192kHz/2ch)
On-chip frame buffer allows flexible input LVDS
video timing.
Capable of converting input video frame rate to
satisfy external displays’ refresh rate requirements
Advanced scaling engine to upsize/downsize
display resolution for HDMI, DVI and analog RGB
outputs
Programmable adaptive de-flickering filter
Image display rotation supports for HDMI/DVI and
analog RGB outputs. The screen display can be
rotated 90/180/270 degree or flipped either
horizontally or vertically
Horizontal/vertical position shifting for the VGA
display is programmable
Flexible crystal or oscillator clock input frequency
for analog RGB output (2.3MHz 64MHz). 27
MHz external crystal is recommended for HDMI
output.
IO and SPC/SPD supply voltages from 1.8V to
3.3V
Programmable power management
GENERAL DESCRIPTION
The CH7036 is specifically designed for Consumer
Electronics Devices and Personal Computers that require
High Definition (HD) Content video playback on the
external displays such as HDMI/DVI monitors.
The CH7036’s HDMI transmitter is designed to support
1080p HDTV. For desktop monitors that do not have the
HDMI input, the CH7036 has the capability to disable
HDMI mode and output DVI signal or analog RGB
signal (VGA). To support multi-display, the CH7036 can
output either HDM/DVI or Analog RGB signals together
with LVDS signal pass-through.
The CH7036’s single channel LVDS receiver/transmitter
complies with the SPWG specification, a popular LVDS
standard used by panel manufacturers. Each input/output
LVDS interface is equipped with 4/1 pairs of differential
signal buses to support video data and clock. The built-
in dithering mechanism can be applied to approximate
true 24-bit color video data if system manufacturers use
less expensive 18-bit panels. Conversely, if input data is
only 18-bit color, the simulation to 24-bit color for high-
end TFT LCD is also supported.
The device’s LVDS receiver can accept maximum video
clock frequency for up to 85MHz or 1366x768 resolution
in 24-bit color per pixel. A powerful scaling engine
working together with other video processing circuits,
will convert the captured LVDS signal stored in the
internal SDRAM into High Definition Content video
data. The built-in mixer will combine this HD digital
RGB signal with decoded audio stream into HDMI
format data, which will be serialized for output display
by the CH7036 TMDS encoder.
The CH7036 supports both SPDIF and 2-channel I2S
digital audio inputs. Its high fidelity audio decoder
engine has the capability of sampling audio frequencies
for up to 192kHz for 2 channels.
Utilizing its high speed internal frame buffer, the
CH7036’s scaling engine can increase the flexibility of
the screen display. The video enhancement includes
resizing the HDMI/DVI and RGB output display
resolution, performing Frame Rate Conversion a well as
rotating display orientation. Other video fine tuning, such
as brightness control or contrast adjustment can be used
to improve the display on the analog RGB monitor.
When CH7036 is powered up, its MCU is able to
automatically execute the device configuration software
209-1000-011 Rev. 1.35 11/28/2013
1

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CH7036A-BF pdf
CHRONTEL
74 Out DAC0
76 In ISET
77 Out GPIO2
78 Out GPIO1
80 In/Out PROM_SD
81 Out PROM_SC
83 In RSTB
84 In RESERVED
85 Out IRQ
86 In SPC
87 In/Out SPD
88 In HPD
1,20
4,61
11,12
19,57
23
40
46,79
54,62
69,73
2,21
5,60
6,17
18,56
Power
Power
Power
Power
Power
Power
Power
Power
Power
Ground
Ground
Ground
Ground
AVDD_PLL
VDDMS
VDDH
DVDD
VDDR
VDDT
AVDD
VDDMQ
AVDD_DAC
AGND_PLL
GNDMS
VSSH
DGND
CH7036
Full swing is up to 0.7V
Analog R Output
Full swing is up to 0.7V
Current Set Resistor Input
This pin sets the DAC current. A 1.2 kΩ, 1% tolerance resistor should
be connected between this pin and AGND_DAC using short and wide
traces
General Purpose Output Pin
General Purpose Output Pin
Serial Port Data to Boot ROM
This pin functions as the bi-directional data pin of the serial port to
Boot ROM. The pin also can be connected to data signal of VGA DDC.
This pin requires a pull-up 10 kΩ resistor to the desired voltage level
Serial Port Clock Output to Boot ROM
This pin functions as the clock pin of the serial port to Boot ROM. The
pin also can be connected to clock signal of VGA DDC. This pin
requires a pull-up 10 resistor to the desired voltage level
Reset Pin
Low for reset
Reserved Pin
This pin should be pull up with 10 kΩ resistor
Programmed Interrupt Output.
Default output 3.3V CMOS level, and this pin could work as open drain
structure for other voltages.
Serial Port Clock Output
This pin functions as the clock pin of the serial port. External pull-up 5.6
kΩ Resistor is required
Serial Port Data Input / Output
This pin functions as the bi-directional data pin of the serial port.
External pull-up 5.6 kΩ Resistor is required
Hot Plug Detect
This input pin determines whether the HDMI output driver is connected
to a HDMI monitor.
PLL Power Supply(1.8V)
SDRAM Device Power Supply(3.3V)
HDMI Power Supply(3.3V)
Digital Power Supply(1.8V)
LVDS Input Power Supply (3.3V)
LVDS Output Power Supply (3.3V)
Analog Power Supply(3.3V)
SDRAM Buffer Power Supply(3.3V)
DAC Power Supply (2.5~3.3V)
PLL Ground
SDRAM Device Ground
HDMI Ground
Digital Ground
209-1000-011 Rev. 1.35 11/28/2013
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