AD725ARZ

AD725 is a very low cost general purpose RGB to NTSC/ PAL encoder that converts red, green and blue colour component signals into their corresponding luminance (baseband amplitude) and chrominance signals in accordance with either NTSC or PAL standards. These two outputs are also combined on-chip to provide a composite video output. All three outputs are available separately at voltages of twice the standard signal levels as required for driving 75 ohm, reverse-terminated cables. It features a luminance trap (YTRAP) pin that provides a means of reducing cross colour generated by subcarrier frequency components found in the luminance signal. For portable or other power-sensitive applications, the device can be powered down to less than 1µA of current consumption. Application includes RGB/VGA to NTSC/PAL encoding, personal computers/network computers, video games, video conference cameras, digital still cameras.

• Composite video output: both NTSC and PAL
• Chrominance and luminance (S-Video) outputs
• Luma trap port to eliminate cross colour artifacts
• TTL logic levels, integrated delay line and auto-tuned filters
• Low power +5V operation, power-down to <lt/>1mA, very low cost
• Maximum input capacitance is 5pF (VS=+5, TA=+25°C)
• Minimum logic high input voltage is 2V (VS=+5, TA=+25°C)
• Typical bandwidth -3dB is 4.4MHz (NTSC, VS=+5, TA=+25°C)
• Gain error range from -7 to +7% (VS=+5, TA=+25°C)
• 16-lead SOIC package, temperature range from -40°C to +85°C

注意

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party