Overview
The AD8191ASTZ from Analog Devices Inc. is a high-performance video switch integrated circuit (IC) designed for seamless switching between multiple video input sources. This device is particularly suited for systems requiring the handling of HDMI and DVI signals, especially in scenarios with long cable runs. It features equalized TMDS inputs and pre-emphasized TMDS outputs, ensuring reliable signal transmission. The AD8191ASTZ is available in a 100-lead LQFP (Lead-Free) package and operates over a temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Maximum Data Rate (DR) per Channel | - | - | 1.65 Gbps | - |
| Bit Error Rate (BER) | - | - | 10^{-9} | - |
| Added Deterministic Jitter | - | - | 40 ps (p-p) | - |
| Added Random Jitter | - | - | 2 ps (rms) | - |
| Differential Intrapair Skew at Output | - | - | 1 ps | - |
| Differential Interpair Skew at Output | - | - | 40 ps | - |
| Operating Supply Voltage | 3.0 V | 3.3 V | 3.6 V | V |
| Minimum Operating Temperature | -40°C | - | - | °C |
| Maximum Operating Temperature | - | - | +85°C | °C |
| Package/Case | - | - | 100-Lead LQFP | - |
| Mounting Style | - | - | SMD/SMT | - |
| Supply Current - Max | - | - | 122 mA | A |
| Power Dissipation - Max | - | - | 1.05 W | W |
Key Features
- HDMI 1.2a compliance
- I²C and serial interfaces for control
- Low power consumption
- High-speed digital interfaces supporting up to 1.65 Gbps data rates
- Compact 100-LQFP package
- Equalized TMDS inputs and pre-emphasized TMDS outputs for reliable signal transmission over long cable runs
- Flexible channel bundling modes: 4:1 single HDMI/DVI link switch, dual 8:1 switch, or single 16:1 switch
- Outputs can be set to a high impedance state to reduce power dissipation
Applications
- Professional audio/video equipment
- Gaming consoles
- Industrial video systems
- Multiple input displays
- Projectors
- A/V receivers
- Set-top boxes
- Advanced television (HDTV) sets
- Live events and broadcast studios
Q & A
- What is the AD8191ASTZ used for?
The AD8191ASTZ is a video switch IC used for seamlessly switching between multiple video input sources, particularly in HDMI and DVI applications.
- What are the key features of the AD8191ASTZ?
Key features include HDMI 1.2a compliance, I²C and serial interfaces, low power consumption, high-speed digital interfaces, and a compact 100-LQFP package.
- What are the operating temperature ranges for the AD8191ASTZ?
The device operates over a temperature range of -40°C to +85°C.
- What is the maximum data rate supported by the AD8191ASTZ?
The AD8191ASTZ supports data rates up to 1.65 Gbps per channel.
- What types of applications is the AD8191ASTZ suitable for?
Suitable applications include professional audio/video equipment, gaming consoles, industrial video systems, and more.
- What package type is the AD8191ASTZ available in?
The AD8191ASTZ is available in a 100-lead LQFP (Lead-Free) package.
- How does the AD8191ASTZ handle signal transmission over long cable runs?
The device features equalized TMDS inputs and pre-emphasized TMDS outputs to ensure reliable signal transmission over long cable runs.
- Can the AD8191ASTZ be configured in different switching modes?
Yes, it can be configured as a 4:1 single HDMI/DVI link switch, a dual 8:1 switch, or a single 16:1 switch.
- What is the power dissipation of the AD8191ASTZ?
The maximum power dissipation is 1.05 W.
- What are some considerations for using the AD8191ASTZ?
Considerations include proper heat dissipation and careful routing of PCB traces to minimize signal degradation.
