Simplified Block Diagram
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- Tiny 5-Pin SC70 and 6-Pin µDFN Packages
- DC-Coupled I/O Saves Board Space
- 4-Pole Chebyshev Filter
- 5.5MHz Passband
- 55dB Attenuation at 27MHz
- 10nA Low-Current Shutdown Mode
- 2.5V to 3.6V Single-Supply Operation
- Preset Gains: +6dB (MAX9502G), +12dB (MAX9502M)
- Evaluates the MAX9502M (IC replacement required)
- Fully Assembled and Tested
- Digital Still Cameras
- Mobile Phones
- Portable Video
The MAX9502G/MAX9502M is a small, low-power, video filter amplifier that operates from a supply voltage as low as 2.5V. The filter passband is set for standard definition video. The small size and low minimum supply voltage make the MAX9502G/MAX9502M ideal for portable applications such as mobile phones, digital still cameras, and camcorders.
The MAX9502G/MAX9502M does not require coupling capacitors or bias networks, resulting in an extremely small footprint solution. The MAX9502G/MAX9502M input can be directly connected to the output of a video digital-to-analog converter (DAC). The reconstruction filter is implemented as a 4th-order Chebyshev and has +1dB passband flatness to 5.5MHz, 3dB attenuation at 8MHz, and 55dB attenuation at 27MHz.
The output amplifier drives a 2VP-P video signal into a 150Ω load to ground. The output signal is level-shifted so the sync tip is typically 110mV above ground.
The MAX9502G/MAX9502M consumes only 5.3mA quiescent supply current. An active-low shutdown mode reduces the supply current to 10nA. The MAX9502G dual-package EV kit is available in tiny 6-pin µDFN (1mm x 1.5mm x 0.72mm) and 5-pin SC70 (2mm x 2.2mm x 0.95mm) packages. The device is specified over the -40°C to +85°C extended temperature range and -40°C to +125°C automotive temperature range. The MAX9502G dual-package EV kit can also be used to evaluate the MAX9502M by replacing the IC.