Overview
The TMDS171, produced by Texas Instruments, is a 3.4-Gbps HDMI 1.4b TMDS retimer designed for high-speed digital video interfaces. This component supports both DVI and HDMI interfaces, making it versatile for various video applications. It is capable of handling signaling rates up to 3.4 Gbps, which enables support for high resolutions such as 4k2k30p with 24 bits per pixel and up to WUXGA with 12-bit color depth or 1080p with higher refresh rates. The TMDS171 automatically configures itself as a re-driver at low data rates (< 1 Gbps) or as a re-timer at higher data rates, ensuring optimal performance across different scenarios.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Data Rate | Up to 3.4 Gbps | Gbps |
| Compatibility | HDMI 1.4b Electrical Parameters | |
| Resolution Support | 4k2k30p, WUXGA 12-bit, 1080p with higher refresh rates | |
| Equalizer | Adaptive Receiver Equalizer or Programmable Fixed Equalizer | |
| Inter-Pair Skew Compensation | 5+ Bits | |
| Package | 48-pin 7mm x 7mm 0.5 mm Pitch VQFN | |
| Temperature Range | 0°C – 85°C (TMDS171), -40°C – 85°C (TMDS171I) | °C |
| Power Supply | 1.2 V on VDD, 3.3 V on VCC | V |
Key Features
- HDMI Input Port to Output Port with CDR supporting up to 3.4 Gbps data rates
- Retimes input stream to compensate for random jitter
- I2C and pin strap programmable for various configurations
- Link debug tools including eye diagram after RX equalizer
- Single-ended mode ARC support
- Dual power supply rails for active power reduction
- Fixed EQ gain or adaptive EQ control by I2C or pin strap
- Support for Audio Return Channel (SPDIF_IN/ARC_OUT), Hot Plug Detect (HPD), and Digital Display Control (DDC) interfaces
Applications
- Digital TV
- Digital Projector
- Audio/Video Equipment
- Blu-Ray DVD
- Monitors
- Desktops/All-in-Ones
- Active Cables
Q & A
- What is the maximum data rate supported by the TMDS171?
The TMDS171 supports data rates up to 3.4 Gbps.
- What HDMI version is the TMDS171 compatible with?
The TMDS171 is compatible with HDMI 1.4b electrical parameters.
- What resolutions does the TMDS171 support?
The TMDS171 supports resolutions such as 4k2k30p, WUXGA with 12-bit color depth, and 1080p with higher refresh rates.
- How does the TMDS171 handle jitter compensation?
The TMDS171 retimes the input stream to compensate for random jitter.
- What types of equalizers does the TMDS171 support?
The TMDS171 supports both adaptive receiver equalizer and programmable fixed equalizer.
- What is the package type and size of the TMDS171?
The TMDS171 comes in a 48-pin 7mm x 7mm 0.5 mm Pitch VQFN package.
- What are the operating temperature ranges for the TMDS171 and TMDS171I?
The TMDS171 operates from 0°C to 85°C, while the TMDS171I operates from -40°C to 85°C.
- How does the TMDS171 manage power consumption?
The TMDS171 uses dual power supply rails (1.2 V on VDD and 3.3 V on VCC) and several power management methods to reduce overall power consumption.
- What additional interfaces does the TMDS171 support?
The TMDS171 supports Audio Return Channel (SPDIF_IN/ARC_OUT), Hot Plug Detect (HPD), and Digital Display Control (DDC) interfaces.
- How can the TMDS171 be configured?
The TMDS171 can be configured using I2C or pin strap for various settings.
