LTC6904IMS8#PBF

Programmable Timers And Oscillators Overview

The LTC6904IMS8#PBF is a low-power, self-contained digital frequency source manufactured by Analog Devices Inc. It provides a precision square wave output ranging from 1kHz to 68MHz, configured via an industry-standard I2C compatible serial interface. The device operates on a single supply voltage between 2.7V and 5.5V and requires no external components other than a power supply bypass capacitor. It features a proprietary feedback loop that linearizes the relationship between digital control settings and frequency, ensuring high accuracy with typical initial frequency accuracy of ±0.75% and total frequency error under 1.1% across all settings.

Programmable Timers And Oscillators Feature Summary

• I2C Compatible Serial Interface for precise frequency programming
• Output Frequency Range: 1kHz to 68MHz Square Wave
• Typical Supply Current: 1.7mA at f < 1MHz (VS = 2.7V)
• Low Jitter: <0.4% typical peak-to-peak jitter from 1kHz to 8MHz
• Wide Operating Temperature Range: –40°C to 85°C

Programmable Timers And Oscillators Applications

• Precision Digitally Controlled Oscillator
• Replacement for Direct Digital Frequency Synthesis (DDS)
• Switched Capacitor Filter Clock
• Power Management Systems

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix IMS8 indicates the Industrial temperature grade (-40°C to 85°C) and MSOP package. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors prior to procurement. Ensure I2C bus pull-up resistors are selected appropriately for the system voltage.

Programmable Timers And Oscillators Selection Notes

Select the LTC6904 over the LTC6903 when an I2C interface is required instead of SPI. Consider the LTC6904HMS8#PBF if operation up to 125°C is necessary. Ensure the load capacitance on CLK outputs does not exceed 5pF without buffering to maintain frequency accuracy. Verify that the microcontroller supports the required I2C timing specifications.

Programmable Timers And Oscillators Part Context

This component belongs to the LTC6903/LTC6904 family of programmable oscillators. The IMS8 variant specifically denotes the industrial temperature range and plastic MSOP-8 packaging. It serves as a compact alternative to discrete oscillator circuits, offering digital programmability in a small footprint suitable for space-constrained embedded designs.

Programmable Timers And Oscillators Replacement Considerations

LTC6903IMS8#PBF offers identical electrical performance but uses an SPI interface instead of I2C. For higher temperature operation, consider LTC6904HMS8#PBF (-40°C to 125°C). For lower power requirements at reduced frequencies, the LTC6900 may be suitable.