Overview
The MAX3815ACCM+ from Analog Devices Inc./Maxim Integrated is a TMDS (Transition-Minimized Differential Signaling) digital video equalizer designed to extend the usable distance of DVI, HDMI, DFP, PanelLink, and ADC cables. This component automatically compensates for signal degradation caused by cable attenuation, enabling high-quality video transmission over longer cable lengths. It is particularly useful in applications requiring high-resolution video interfaces such as digital visual displays and multimedia systems.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 48-TQFP-EP (7x7) |
| Supply Voltage | +3.0V to +3.6V |
| Operating Temperature | 0°C to +70°C |
| Data Rate | Up to 1.65Gbps (individual channel) |
| Input/Output Type | CML-differential inputs and outputs |
| Number of Data Channels | Three data channels and one clock channel |
| Loss-of-Clock Signal Output | LVTTL Open Collector |
| Power-Down Mode | Yes, via PWRDWN input |
| Maximum Cable Length | Up to 36 meters (depending on cable type and data rate) |
Key Features
- Automatically adjusts to attenuation levels of up to 40dB at 825MHz due to skin-effect losses in copper cables.
- Supports TMDS interfaces for DVI, HDMI, DFP, PanelLink, and ADC cables.
- Four CML-differential inputs and outputs.
- Loss-of-clock signal detection and output (CLKLOS).
- Power-down mode to conserve power.
- Output drivers can be adjusted to reduce power consumption and EMI.
Applications
- Digital visual displays requiring high-resolution video interfaces.
- High-definition multimedia systems.
- Flat-panel displays.
- Apple display connectors (ADC).
- Any TMDS interface application needing extended cable lengths.
Q & A
- What is the primary function of the MAX3815ACCM+? The MAX3815ACCM+ is a TMDS digital video equalizer designed to extend the usable distance of DVI, HDMI, DFP, PanelLink, and ADC cables by compensating for signal degradation.
- What is the maximum data rate supported by the MAX3815ACCM+? The MAX3815ACCM+ supports data rates up to 1.65Gbps per individual channel.
- What type of inputs and outputs does the MAX3815ACCM+ have? The MAX3815ACCM+ has CML-differential inputs and outputs.
- How many data channels and clock channels does the MAX3815ACCM+ support? It supports three data channels and one clock channel.
- Does the MAX3815ACCM+ have a power-down mode? Yes, the MAX3815ACCM+ has a power-down mode that can be activated via the PWRDWN input.
- What is the maximum cable length supported by the MAX3815ACCM+? The maximum cable length is up to 36 meters, depending on the cable type and data rate.
- What is the purpose of the CLKLOS output? The CLKLOS output indicates a loss-of-clock signal when the input signal power drops below a threshold.
- Can the output drivers be adjusted to reduce power consumption and EMI? Yes, the output drivers can be adjusted to reduce power consumption and EMI.
- What package type is the MAX3815ACCM+ available in? The MAX3815ACCM+ is available in a 48-TQFP-EP (7x7) package.
- What is the operating temperature range of the MAX3815ACCM+? The operating temperature range is from 0°C to +70°C.
