DS1077Z-125+

Overview

The DS1077Z-125+ is a dual-output, programmable fixed-frequency oscillator from the EconOscillator series. It operates on a single 5V supply (4.75V to 5.25V) and requires no external components. The device features two synchronous outputs with frequencies ranging from 8.13kHz to 125MHz, derived from an internal master clock via programmable prescalers and dividers. Frequency settings are stored in nonvolatile EEPROM memory. It supports a 2-wire serial interface for on-the-fly programming and includes power-down modes with standby current of 5µA maximum.

Feature Summary

• Dual low-jitter synchronous outputs (OUT0 and OUT1) with frequency ranges up to 125MHz
• Nonvolatile EEPROM storage for frequency settings and control registers
• 2-wire serial interface supporting standard (100kHz) and fast (400kHz) modes
• Programmable prescalers and divider allowing flexible frequency synthesis

Applications

• Processor-controlled frequency synthesizers
• Standalone clock generation for digital systems
• Systems requiring on-the-fly frequency reconfiguration
• Applications needing minimal board space and no external crystals

Procurement Notes

Verify the package type 'Z' corresponds to the 8-pin 150mil SOIC format. Confirm the suffix '-125+' indicates the 125MHz standard frequency option and RoHS compliance. Check for specific ordering suffixes if tape-and-reel packaging is required instead of tubes.

Selection Notes

Select this model when a fixed 125MHz master clock is needed with divided outputs. Ensure the application voltage stays within 4.75V to 5.25V. Consider the DS1077U variant if a smaller 118mil µSOP package is preferred over the standard SOIC footprint.

Part Context

The DS1077Z-125+ belongs to the DS1077 EconOscillator family, which integrates an internal oscillator, prescalers, and dividers into a single chip. The 'Z' suffix denotes the SOIC package, while '125' specifies the 125.000MHz factory-trimmed master frequency. This component eliminates the need for external resonators or crystals.

Replacement Considerations

Public confirmed substitute part numbers: None listed.