TMDS141

ACTIVE

2.25-Gbps HDMI 1.3a TMDS redriver

Product details

Type Redriver Protocols HDMI Rating Catalog Speed (max) (Gbpp) 2.25 Number of channels 1 Supply voltage (V) 3.3 Operating temperature range (°C) 0 to 70
Type Redriver Protocols HDMI Rating Catalog Speed (max) (Gbpp) 2.25 Number of channels 1 Supply voltage (V) 3.3 Operating temperature range (°C) 0 to 70
VQFN (RHA) 40 36 mm² 6 x 6
  • Supports 2.25 Gbps Signaling Rate for up to 1080p Resolutions
    Supporting 36-bits Per Pixel for Color Depth of 12-bits Per Color
  • Compatible with HDMI 1.3a
  • Integrated Receiver Termination
  • 8-dB Equalizer Compensates Losses from 5-m or Longer HDMI Cables
  • Selectable Output De-Emphasis Supports 1-m HDMI Transmission
  • I2C Repeater Isolates Bus Capacitance at Both Ends
  • High Impedance Outputs When Disabled
  • TMDS Inputs HBM ESD Protection Exceeds 6 kV
  • 3.3-V Supply Operation
  • 40-Pin QFN Package (RHA)
  • ROHS Compatible and 260°C Reflow Rated
  • Accepts AC Couple DisplayPort Dual-Mode Signals and Translates
    Them into a HDMI1.3a Compatable TMDS Signal
  • Supports 2.25 Gbps Signaling Rate for up to 1080p Resolutions
    Supporting 36-bits Per Pixel for Color Depth of 12-bits Per Color
  • Compatible with HDMI 1.3a
  • Integrated Receiver Termination
  • 8-dB Equalizer Compensates Losses from 5-m or Longer HDMI Cables
  • Selectable Output De-Emphasis Supports 1-m HDMI Transmission
  • I2C Repeater Isolates Bus Capacitance at Both Ends
  • High Impedance Outputs When Disabled
  • TMDS Inputs HBM ESD Protection Exceeds 6 kV
  • 3.3-V Supply Operation
  • 40-Pin QFN Package (RHA)
  • ROHS Compatible and 260°C Reflow Rated
  • Accepts AC Couple DisplayPort Dual-Mode Signals and Translates
    Them into a HDMI1.3a Compatable TMDS Signal

The TMDS141 HDMI hider is designed to accommodate a 1-m HDMI cable between a HDMI connector and a receiver. The internal cable causes signal distortion to high-speed TMDS signals, as well as increasing capacitance to the DDC channel. Each TMDS141 contains four TMDS repeaters to transmit digital content with signaling rates of up to 2.25-Gbps, and an I2C repeater to link extended display identification data (EDID) reading and high-bandwidth digital content protection (HDCP) key exchange under I2C standard mode operations.

The device includes four TMDS compliant differential receivers with 50-Ω termination resistors and 3.3-V termination voltage integrated at each receiver input pin. External terminations are not required. A built-in frequency response equalization circuit, 8 dB at 825 MHz, compensates inter-symbol interference (ISI) losses from a 5-m or longer input cable link.

The device also includes four TMDS compliant differential drivers. A precision resistor is connected externally from the VSADJ pin to ground for setting the differential output voltage to be compliant with the TMDS standard. A selectable de-emphasis circuit is available via the PRE input to drive long PCB traces or cables. When PRE is high, the 3.5-dB high frequency gain offsets the losses due to the FR4 trace. PRE can be left open or kept low when the de-emphasis function is not desired.

With standard TMDS terminations at the outputs, all TMDS outputs are forced high-impedance when OE is set high. The I2C repeater isolates the buses without accumulating the capacitance of both sides. It allows DDC capacitance to be controlled under the desired load. The I2C outputs are high-impedance when device supply voltage is less than 1.5 V or I2CEN is low. The OVS pin, output voltage select, provides the flexibility of adjusting the output voltage level of the TSCL and TSDA side to optimize noise margins while interfacing to different HDMI receivers. The device is characterized for operation from 0°C to 70°C.

The TMDS141 HDMI hider is designed to accommodate a 1-m HDMI cable between a HDMI connector and a receiver. The internal cable causes signal distortion to high-speed TMDS signals, as well as increasing capacitance to the DDC channel. Each TMDS141 contains four TMDS repeaters to transmit digital content with signaling rates of up to 2.25-Gbps, and an I2C repeater to link extended display identification data (EDID) reading and high-bandwidth digital content protection (HDCP) key exchange under I2C standard mode operations.

The device includes four TMDS compliant differential receivers with 50-Ω termination resistors and 3.3-V termination voltage integrated at each receiver input pin. External terminations are not required. A built-in frequency response equalization circuit, 8 dB at 825 MHz, compensates inter-symbol interference (ISI) losses from a 5-m or longer input cable link.

The device also includes four TMDS compliant differential drivers. A precision resistor is connected externally from the VSADJ pin to ground for setting the differential output voltage to be compliant with the TMDS standard. A selectable de-emphasis circuit is available via the PRE input to drive long PCB traces or cables. When PRE is high, the 3.5-dB high frequency gain offsets the losses due to the FR4 trace. PRE can be left open or kept low when the de-emphasis function is not desired.

With standard TMDS terminations at the outputs, all TMDS outputs are forced high-impedance when OE is set high. The I2C repeater isolates the buses without accumulating the capacitance of both sides. It allows DDC capacitance to be controlled under the desired load. The I2C outputs are high-impedance when device supply voltage is less than 1.5 V or I2CEN is low. The OVS pin, output voltage select, provides the flexibility of adjusting the output voltage level of the TSCL and TSDA side to optimize noise margins while interfacing to different HDMI receivers. The device is characterized for operation from 0°C to 70°C.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet HDMI Hider. datasheet (Rev. D) 22 Sep 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN (RHA) 40 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos