Overview
The ADA4412-3ARQZ, produced by Analog Devices Inc., is a comprehensive filtering solution designed to provide flexibility in filtering and driving various video signals, including high definition video. This integrated triple video filter supports multiple video standards such as RGB, YPbPr, YUV, SD, and Y/C, making it ideal for applications requiring 720p and 1080i resolutions.
The device operates on a single +5 V supply or dual ±5 V supplies, which is beneficial in applications where power consumption is critical. It features an output offset voltage adjustment and a disable function for further power conservation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 4.5 to 12 | V |
| Operating Temperature Range | -40 to +85 | °C |
| Package Type | 20-Lead QSOP | |
| Cutoff Frequencies | 9 MHz, 18 MHz, 36 MHz | |
| Quiescent Current per Channel | 15 mA | |
| Disable Current | Typically 10 μA | |
| PSRR (Single Supply) | Greater than 60 dB | |
| Thermal Resistance (θJA) | 83 °C/W |
Key Features
- Sixth-order adjustable video filters with cutoff frequencies of 9 MHz, 18 MHz, and 36 MHz.
- Supports multiple video standards: RGB, YPbPr, YUV, SD, and Y/C.
- Ideal for 720p and 1080i resolutions with a -1 dB bandwidth of 31.5 MHz for HD.
- Output offset voltage adjustment feature with a continuously adjustable range of ±500 mV.
- Single-supply operation (+5 V) or dual-supply operation (±5 V) for flexibility in power management.
- Disable feature to reduce supply current to typically 10 μA when the device is not in use.
- High impedance input with no minimum or maximum input termination required.
- Excellent stop-band attenuation of over 40 dB to 400 MHz.
Applications
The ADA4412-3ARQZ is well-suited for various consumer video applications, including:
- High definition video processing.
- Standard definition video processing.
- RGB, YPbPr, and YUV video signal filtering.
- Applications requiring low power consumption and high video signal quality.
Q & A
- What are the cutoff frequencies of the ADA4412-3ARQZ video filters?
The cutoff frequencies range from 9 MHz to 36 MHz.
- What video standards does the ADA4412-3ARQZ support?
The device supports RGB, YPbPr, YUV, SD, and Y/C video standards.
- What is the operating temperature range of the ADA4412-3ARQZ?
The operating temperature range is -40°C to +85°C.
- Can the ADA4412-3ARQZ operate on a single supply or dual supplies?
Yes, it can operate on either a single +5 V supply or dual ±5 V supplies.
- How does the disable feature of the ADA4412-3ARQZ conserve power?
The disable feature reduces the supply current to typically 10 μA when the device is not in use.
- What is the quiescent current per channel of the ADA4412-3ARQZ?
The quiescent current per channel is 15 mA.
- What is the thermal resistance (θJA) of the ADA4412-3ARQZ in a 20-Lead QSOP package?
The thermal resistance (θJA) is 83 °C/W.
- Does the ADA4412-3ARQZ require input termination?
No minimum or maximum input termination is required, though terminations above 1 kΩ can degrade crosstalk performance at high frequencies.
- What is the PSRR of the ADA4412-3ARQZ in single-supply operation?
The PSRR is greater than 60 dB in single-supply operation.
- What is the output offset voltage adjustment range of the ADA4412-3ARQZ?
The output offset voltage is continuously adjustable over an input-referred range of ±500 mV.
