ST STDP2690 User Manual
STDP2690
DP++
Output
SPDIF
Audio
DP Input
SPDIF
Transmitter
Clock
Generation
OCM, SPI
I2C to AUX
Bridge
I2C Slave
Video Format
Converter
Image
Capture
DP Dual Mode
Transmitter
DP
Receiver
AUX
DDC
Controller
DDC
Advanced DisplayPort to DisplayPort (dual mode) converter
Data brief
Features
■ DisplayPort® (DP) transmitter
– DP 1.2 compliant
– Link rate HBR2/HBR/RBR
– 1, 2, or 4 lanes
– AUX CH 1 Mbps
– HDMI/DVI operation with level translator
■ DisplayPort receiver
– DP 1.2 compliant
– Link rate HBR2/HBR/RBR
– 1, 2, or 4 lanes
– AUX CH 1 Mbps
■ SPDIF audio output
– 192 kHz/24 bits
– Compressed/LPCM
■ HDCP repeater with embedded keys
■ AUX to I2C bridge for EDID/MCCS pass
through
■ Spread spectrum on DisplayPort interface for
EMI reduction
■ Device configuration options
– SPI Flash
– I2C host interface
■ Deep color support
– RGB/YCC (4:4:4) – 16-bit color
– YCC (4:2:2/4:2:0) – 16-bit color
– Color space conversion – YUV to RGB and
RGB to YUV
■ Bandwidth
– Video resolution up to 4K x 2K @ 30 Hz;
1920 x 1080 @ 120 Hz
– Audio 7.1 Ch up to 192 kHz sample rate
■ Low power operation; active 500 mW, standby
25 mW
■ Package
–81 BGA (8 x 8 mm)
■ Power supply voltages
– 3.3 V I/O; 1.2 V core
Applications
■ Audio-video accessory (dongle) for
PC/notebooks and docking stations
■ Thunderbolt source and peripheral devices
June 2012 Doc ID 23267 Rev 1 1/8
For further information contact your local STMicroelectronics sales office.
www.st.com
8
Description STDP2690
1 Description
The STDP2690 is a high-speed DisplayPort to DisplayPort dual mode converter IC targeted
for applications such as audio-video accessories, docking stations, Thunderbolt storage
devices, etc. This device includes a VESA DP Standard Ver. 1.2 compliant receiver and
transmitter, implementing single link DisplayPort input and output ports comprising four Main
lanes, AUX CH, and HPD.
The STDP2690 uses ST's latest generation DisplayPort dual mode transmitter technology
that supports both DisplayPort and TMDS signal formats (DP++). DisplayPort receiver and
transmitter support HBR2 speed, a data rate of 5.4 Gbps per lane with a total bandwidth of
21.6 Gbps link rate. In addition, the transmitter is capable of supporting HDMI or single link
DVI output through a passive level translator (dongle). When configured as HDMI output,
this device supports link rate up to 2.97 Gbps that corresponds to a pixel rate of 297 MHz,
quite adequate for handling video timings up to FHD 120 Hz 3D formats. This device
delivers deep color video up to 16-bits per color at 1080p 60 Hz and lower video resolutions.
The STDP2690 allows audio transport from the source to desired audio rendering devices
over the DP++ output or through the SPDIF port. The audio signal from the source can be
routed simultaneously to DP++ and SPDIF output ports. For example, the STDP2690 allows
routing of any two audio channels on the SPDIF port, while transporting up to eight
channels on the DP++ port.
The STDP2690 supports RGB and YCbCr colorimetric formats with color depth of 16, 12,
10, and 8 bits. This device features HDCP 1.3 content protection scheme with an embedded
key option for secure transmission of digital audio-video content. It also operates as an
HDCP repeater for the downstream sink.
The AUX-to-I2C translator in the STDP2690 allows the upstream DisplayPort source to
access EDID and transfer MCCS commands to a downstream sink over the HDMI interface
when used with a level translator. The device has an on-chip microcontroller with SPI and
I2C host interface for system configuration purposes. STDP2690 can be configured with an
external SPI Flash for custom applications or simply configured from an external host
controller through I2C interface.
2/8 Doc ID 23267 Rev 1
STDP2690 Application overview
DIsplayPort
DP Main Lanes
DP++
STDP2690
SPI
Flash
27 MHz
Crystal
AUX CH
AUX CH
DP main lanes
MUX
DDC
2 Application overview
Figure 1. STDP2690 in PC/notebook accessory application
Doc ID 23267 Rev 1 3/8
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