Overview
The ADA4417-3ARMZ-RL, produced by Analog Devices Inc., is a fully integrated, low-cost video reconstruction filter specifically designed for consumer high definition video applications. This device offers a comprehensive solution for video filtering and driving, featuring a 38 MHz, 1 dB bandwidth and 44 dB of rejection at 75 MHz, making it suitable for the most demanding HD video applications. It operates on a single supply voltage ranging from 3.3 V to 5 V and is optimized for low power consumption, with a nominal quiescent current of around 20 mA per channel. The ADA4417-3ARMZ-RL also includes a disable feature that reduces the supply current to 10 μA when the device is not in use, enhancing power efficiency in various video environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 3.3 to 5.0 | V |
| Quiescent Current (DCO = 0) | 19.0 to 22.5 | mA |
| Quiescent Current (DCO = 1) | 22.5 to 29.5 | mA |
| Quiescent Current (Disabled) | 10 | μA |
| Propagation Delay (f = 5 MHz) | 26 ns | ns |
| Group Delay Variation (f = 1 MHz to 36 MHz) | 5 ns | ns |
| Differential Gain Modulation | 0.06 % | % |
| Differential Phase Modulation | 0.21 Degrees | Degrees |
| Power Supply Rejection Ratio (PSRR) | 52 to 71 dB | dB |
| Output Drive Capability | Up to 2 x 75 Ω loads | - |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | 10-Lead MSOP | - |
Key Features
- Integrated Triple Video Filter: Designed for high definition video with a 38 MHz, 1 dB bandwidth and 44 dB of rejection at 75 MHz.
- Low Power Consumption: Nominal quiescent current of around 20 mA per channel, and a disable feature that reduces the supply current to 10 μA when not in use.
- Rail-to-Rail Output: Capable of driving two 75 Ω terminated loads, either dc- or ac-coupled, with 6 dB gain.
- High Impedance Inputs: No minimum or maximum input termination required, though terminations above 1 kΩ may degrade crosstalk performance at high frequencies.
- Level-Shifting Circuitry: Adds a dc component of 100 mV to ground-referenced input signals to ensure accurate reproduction without output buffers hitting the ground rail.
- Output DC Offset Function: Allows the output dc level to be adjusted based on the state of the DCO pin.
- High PSRR: Greater than 70 dB, providing excellent rejection in systems with noisy or underregulated supplies.
Applications
The ADA4417-3ARMZ-RL is ideally suited for various high definition video applications, including:
- Video Reconstruction and Antialias Filtering: High impedance inputs and high output drive capabilities make it suitable for these applications.
- Consumer Electronics: Directly drives outputs from set-top boxes, DVDs, and similar devices without the need for a separate output buffer.
- Portable High Definition Video Applications: Low power consumption makes it well-suited for portable devices.
- High Encoding Frequency Applications: Maintains stop-band attenuation of over 40 dB out to 500 MHz.
Q & A
- What is the operating supply voltage range of the ADA4417-3ARMZ-RL?
The operating supply voltage range is from 3.3 V to 5.0 V.
- What is the typical quiescent current of the ADA4417-3ARMZ-RL when enabled?
The typical quiescent current is around 20 mA per channel, depending on the DCO state.
- How much current does the ADA4417-3ARMZ-RL consume when disabled?
The device consumes typically 10 μA when disabled.
- What is the propagation delay of the ADA4417-3ARMZ-RL at 5 MHz?
The propagation delay is approximately 26 ns.
- What is the group delay variation from 1 MHz to 36 MHz?
The group delay variation is only 5 ns.
- Can the ADA4417-3ARMZ-RL drive multiple loads?
Yes, it can drive up to two 75 Ω terminated loads, either dc- or ac-coupled.
- What is the power supply rejection ratio (PSRR) of the ADA4417-3ARMZ-RL?
The PSRR is greater than 70 dB.
- What is the operating temperature range of the ADA4417-3ARMZ-RL?
The operating temperature range is from -40°C to +85°C.
- What package types are available for the ADA4417-3ARMZ-RL?
The device is available in a 10-Lead MSOP package.
- Does the ADA4417-3ARMZ-RL have any level-shifting circuitry?
Yes, it includes level-shifting circuitry that adds a dc component of 100 mV to ground-referenced input signals.
