ST STDP2650 User Manual

STDP2650

HDMI
Output

I2S/SPDIF
Audio

DP Input

I2S/SPDIF

Transmitter

Clock

Generation

OCM, SPI

AUX to I2C

Bridge

I2C Slave

Video Format

Converter

Image

Capture

HDMI

Transmitter

DisplayPort

Receiver

CEC

CEC

DDC

Advanced DisplayPort to HDMI converter

Data brief

Features

■ DisplayPort® (DP) receiver

– DP 1.2 compliant
– Link rate HBR2/HBR/RBR
– 1, 2, or 4 lanes
– AUX CH 1 Mbps

■ HDMI 1.4 transmitter

– Max data rate up to 2.97 Gbps/data pair
– Color depth up to 48 bits
– 3D video timings
–CEC

■ SPDIF audio output

– 192 kHz/24 bits
– Compressed/LPCM

■ HDCP repeater with embedded keys

■ AUX to I2C bridge for EDID/MCCS pass

through

■ Device configuration options

–SPI Flash
– I2C host interface

■ Spread spectrum on DisplayPort interface for

EMI reduction

■ 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

■ DisplayPort to HDMI bridge for TVs and

projectors

■ Audio-video accessory (dongle) for desktop,

notebook computers, and tablets

June 2012 Doc ID 23266 Rev 1 1/8

For further information contact your local STMicroelectronics sales office.

www.st.com

8

Description STDP2650

1 Description

The STDP2650 is a high-speed DisplayPort to HDMI converter IC for applications such as
audio-video accessories for docking stations, TV front-end design, etc. This device includes
a VESA DP Standard Ver.1.2 compliant receiver and an HDMI 1.4 compliant transmitter.
The DisplayPort input port comprises four Main lanes, AUX CH, and HPD signal. The HDMI
output port includes DDC, CEC, and HPD support.

The STDP2650 uses ST's latest generation DisplayPort receiver technology that supports
HBR2 speed, a data rate of 5.4 Gbps per lane with a total bandwidth of 21.6 Gbps link rate.
The HDMI transmitter is capable of supporting link rate up to 2.97 Gbps that corresponds to
a pixel rate of 297 MHz, quite adequate for handling video resolution 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 STDP2650 allows audio transport from the source to desired
audio rendering devices over the HDMI output or through the SPDIF port. The audio signal
from the source can be routed simultaneously to HDMI and SPDIF output ports. For
example, the STDP2650 allows routing of any two audio channels on the SPDIF port, while
transporting up to eight channels on the HDMI port.

The STDP2650 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 STDP2650 allows the upstream DisplayPort source to
access EDID and transfer MCCS commands to a downstream sink over the HDMI interface.
The device has an on-chip microcontroller with SPI and I2C host interface for system
configuration purposes. The STDP2650 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 23266 Rev 1

STDP2650 Application overview

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2 Application overview

Figure 1. STDP2650 in notebook accessory application

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Figure 2. STDP2650 inside TV application

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Doc ID 23266 Rev 1 3/8