The MK1410 and MK1411 are the ideal way to generate clocks for NTSC/PAL video encoders and decoders. The devices store two or four popular frequencies for NTSC and PAL. The chips save component count, board space, and cost over surface mount crystals and oscillators in an 8-pin SOIC, and increase reliability by eliminating one or two mechanical devices from the board. The power down pin turns off the device, drawing less than 20µA. MicroClock offers many other clocks for computers and computer peripherals.
The MK1410 and MK1411 generate NTSC/PAL video clocks in an 8‑pin SOIC package, offering low power consumption (power‑down current <20 pA) and eliminating the need for separate crystals or oscillators. The device supplies selectable output frequencies of 14.31818 MHz, 17.7345 MHz, 28.6364 MHz, or 35.46896 MHz and includes a power‑down pin for further power savings.
The manual details pin assignments, external component requirements for crystal or clock inputs, full electrical specifications, package dimensions, and ordering information. An application note explains use with AD722/AD725 video encoders and troubleshooting steps for incorrect color output.
| Supply Voltage (VDD) range | 3.0 V – 5.5 V |
|---|---|
| Power‑down supply current | 25 pA (no load, 5 V) |
| Output clock frequencies | 14.31818 MHz, 17.7345 MHz, 28.6364 MHz, 35.46896 MHz |
| Package type | 8‑pin SOIC |
| Drive capability | 25 mA at TTL levels |
It operates from 3.0 V to 5.5 V.
The power‑down current is less than 25 pA.
The device can output 14.31818 MHz, 17.7345 MHz, 28.6364 MHz, or 35.46896 MHz.
The PD pin (active low) powers down the chip, stopping the clocks.