DS1077LZ-50

Overview

The DS1077LZ-50 is a dual-output, programmable fixed-frequency oscillator from the EconOscillator family. It operates on a single 2.7V to 3.6V supply and requires no external components. The device features a factory-trimmed internal master oscillator of 50MHz, which can be divided by prescalers (P0, P1) and a programmable divider (N) to generate two synchronous outputs ranging from 6.09kHz to 50MHz. Configuration is managed via a 2-wire serial interface, with settings stored in nonvolatile EEPROM memory for retention upon power-up.

Feature Summary

• Dual low-jitter synchronous outputs (OUT0 and OUT1)
• 2-wire serial interface for on-the-fly frequency programming
• Nonvolatile EEPROM storage for frequency and control settings
• Single 2.7V to 3.6V supply operation with power-down mode

Applications

• Processor-controlled frequency synthesizers
• Standalone clock generation for digital systems
• Portable equipment requiring minimal board area

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against the 8-pin SO specification. Review datasheet revision history for any updates to electrical characteristics or ordering information prior to integration.

Selection Notes

Select the DS1077LZ-50 when a 50MHz master frequency is required. Ensure the application voltage stays within the 2.7V to 3.6V range. Verify that the 150mil SO package dimensions fit the PCB layout constraints. Consider current consumption implications if high-frequency outputs are active continuously.

Part Context

This component belongs to the DS1077L series of 3V EconOscillators. The 'Z' suffix denotes the 8-pin 150mil SO package variant. Other variants include the LU suffix for the 118mil µSOP package. The '-50' designation specifies the 50MHz master frequency option, distinguishing it from 40MHz, 60MHz, and 66.666MHz versions.

Replacement Considerations

Direct replacements include other DS1077Lx-50 variants with different packages, such as DS1077LU-50 for the µSOP form factor. Cross-family replacement requires verifying compatible voltage ranges, interface protocols, and output drive capabilities.