GM60028H ,DisplayPort transmitter ICApplications that require high bandwidth and YCbCr 4:2:2 - 1x24, 1x20, 1x16long reach cables, such ..
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GM60028H
DisplayPort transmitter IC
Data BriefNovember 2008 Rev 1 1/7
GM60028HDisplayPort transmitter
Features DisplayPort™ 1.1a compliant transmitter HDCP 1.3 support DisplayPort link comprising four main lanes
and one auxiliary channel Output bandwidth sufficient to transmit AV
streams up to WQXGA or Full HD@120 Hz
along with multi-channel 24-bit audio streams
@192 kHz sampling rate 60-bit LVTTL input configurable as single port
or dual port with single pixel per clock or two
pixels per clock RGB or YCbCr input color format
RGB / YCbCr 4:4:4 - 1x60, 1x48, 1x30, 1x24
YCbCr 4:2:2 - 1x24, 1x20, 1x16 Color space conversion from RGB to YUV and
from YUV to RGB I2S (8 channel) or SPDIF audio input ports
compliant with IEC60958 and IEC61937
formats I2C host interface General purpose inputs/outputs
(Total of 28) Energy Spectrum Management® (ESM®) Package: 160-pin PQFP
Applications Interface for the digital transmission of secure,
high-bandwidth, uncompressed audio-visual
streams in TV and PC applications Applications that require high bandwidth and
long reach cables, such as projectors
Description GM60028H2/7
1 DescriptionThe GM60028H is a DisplayPort transmitter IC designed for the transmission of secure,
high-bandwidth, uncompressed digital audio-video content for next-generation TV, projector,
and PC display systems. It has a single link DisplayPort output comprising four main lanes
and one auxiliary channel. The total available link bandwidth is 10.8 Gbps, which is suitable
for transmission of high resolution digital video and audio content. The DisplayPort link
bandwidth supported by GM60028H can transmit full HD video (1080p 30-bit color per pixel)
@ 120 Hz or support 2560 x 1600 @ 60 Hz graphics, along with corresponding audio
streams. Unlike conventional display interfaces, DisplayPort link bandwidth can be freely
traded between video resolution, refresh rate, and pixel bit depth. The auxiliary channel is a
1 Mbps bidirectional, half-duplex interface dedicated for link and device management.
The GM60028H supports RGB and YUV video color formats with a color depth of 12 (YUV
4:2:2 only), 10, and 8 bits. The GM60028H also supports both compressed and
uncompressed audio formats. The 60-bit LVTTL input ports on GM60028H can be mapped
to receive video data streams either in two pixels per clock or single pixel per clock of
chosen color depth. The audio signal is connected through multi-channel I2S or SPDIF
ports. The received video signal is mapped onto DisplayPort main link, along with
corresponding audio signal. The GM60028H supports HDCP 1.3 content protection scheme
(HDCP 1.3) for secure transmission of digital audio-video content.
The GM60028H can be configured by an external Host through the I2C host interface. This
device also includes general purpose inputs/outputs that can be used for controlling system
components. The GM60028H features color space converter (RGB to YUV and YUV to
RGB) and sample structure converter (4:4:4 to 4:2:2 and 4:2:2 to 4:4:4) for flexible interface
with external video processing devices.
Figure 1. System diagram
GM60028H Benefits 3/7
2 Benefits Proven interoperability with all major DisplayPort vendors HDCP 1.3 support On-chip Microprocessor enables stand-alone operation for customized applications Flexible interface to ease system design – DP 1, 2, 4 lane configuration, 60/48/30/24
TTL port, YUV/RGB color format Low EMI Low power
Feature attributes GM60028H4/7
3 Feature attributes DisplayPort 1.1a compliant transmitter offering 10.8 Gbps bandwidth over 4 lanes 60-bit LVTTL input configurable as single port or dual port with single pixel per clock or
two pixels per clock Supports RGB or YCbCr input color format: RGB 444/YCbCr 444 with 60 or 48 bits using Display input Port A & B combined;
with 30 or 24 bits using either Port A or Port B. YCbCr 4:2:2 with 24, 20, or 16 bits using either Port A or Port B. I2S (channel) or SPDIF audio input ports compliant with IEC60958 and IEC61937
audio format Color space conversion from RGB to YUV or YUV to RGB Dithering support (10-bit to 8-bit) SPI interface with external Serial Flash for storing firmware and system configuration
data Secured HDCP key storage using proprietary scheme General purpose inputs/outputs 2-wire host interface Standard UART interface 3.3V IO, 1.8V Core 160-pin PQFP
GM60028H Ordering information 5/7
4 Ordering information b
Table 1. Order codes
Revision history GM60028H
6/7
5 Revision history
Table 2. Document revision history
