8N4Q001EG-0143CDI8

Programmable Timers and Oscillators

The 8N4Q001EG-0143CDI8 oscillator is a programmable clock/timing generator for IEEE1284 printer applications. It is designed to provide the industry-leading design flexibility required to build printers with the highest levels of system performance, reliability, and value. It is housed in a space-saving 2mm x 2mm x 0.8 mm hermetically sealed surface mount ceramic package.

Application Field

The 8N4Q001EG-0143CDI8 is a programmable timing generator optimized for IEEE1284 printer applications. It is used in a wide range of printer applications including inkjet printers, thermal printers, label printers, multifunction printers, and photo printers. It features a programmable oscillator that allows tuning to the peak performance and frequency of the system and has been proven to improve printer throughput and image quality compared to standard oscillators.

Working Principle

The 8N4Q001EG-0143CDI8 oscillator is an integrated programmable timer and oscillator. It has two independent, digital programmable oscillator outputs that can be configured to provide a frequency range of 3MHz to 25MHz, with a typical frequency accuracy of ±20Fs. The oscillator output level is programmed through a digital interface. Additionally, the device is programmable to change the time base and output frequency with a single-bit programmable logic. The oscillator has built-in anti-aliasing filters, EMI immunity filters and spike suppression filters to ensure optimal signal quality.

The 8N4Q001EG-0143CDI8 can be programmed with the 8-bit parallel 200kHz interface. The interface is composed of the data lines D0 to D7 and the read/write line RW. The RW line is used for both read and write operations. The data lines D0 to D7 can be used to shift the output frequency to a lower value or higher value. The device starts from the default 8N4Q frequency, then data lines D0 to D7 are used to shift the frequency down, up or stay constant depending on the data written. Once programmed, the oscillator phase is locked until the device is reset. The device offers a power down feature which, when enabled, reduces the oscillator power consumption to nearly zero.

Conclusion

The 8N4Q001EG-0143CDI8 is an industry-leading programmable clock/timing generator for IEEE1284 printer applications. It provides the design flexibility to build printers that achieve maximum system performance, reliability, and value. The device is capable of producing frequencies from 3Mhz to 25Mhz with a typical frequency accuracy of ±20Fs, and it has a 200kHz programmable interface. Additionally, the 8N4Q001EG-0143CDI8 has integrated anti-aliasing filters, EMI immunity filters, and spike suppression filters to ensure optimal signal quality.