LTC6903
PRODUCTION1kHz – 68MHz Serial Port Programmable Oscillator
- Part Models
- 6
- 1ku List Price
- Starting From $2.72
Part Details
- 1kHz to 68MHz Square Wave Output
- 0.5% (Typ) Initial Frequency Accuracy
- Frequency Error <1.1% Over All Settings
- 10ppm/°C Typical Frequency Drift Over Temperature
- 0.1% Resolution
- 1.7mA Typical Supply Current (f < 1MHz, VS = 2.7V)
- 2.7V to 5.5V Single Supply Operation
- Jitter <0.4% Typical 1kHz to 8MHz
- Easy to Use SPI (LTC6903) or I2C (LTC6904) Serial Interface
- Output Enable Pin
- –55°C to 125°C Operation
- MS8 Package
The LTC6903/LTC6904 are low power self contained digital frequency sources providing a precision frequency from 1kHz to 68MHz, set through a serial port. The LTC6903/ LTC6904 require no external components other than a power supply bypass capacitor, and they operate over a single wide supply range of 2.7V to 5.5V.
The LTC6903/LTC6904 feature a proprietary feedback loop that linearizes the relationship between digital control setting and frequency, resulting in a very simple frequency setting equation:
where OCT is a 4-bit digital code and DAC is a 10-bit digital code.
The LTC6903 is controlled by a convenient SPI compatible serial interface. The LTC6904 uses an industry standard I2C compatible interface.
Applications
- Precision Digitally Controlled Oscillator
- Power Management
- Direct Digital Frequency Synthesis (DDS) Replacement
- Replacement for DAC and VCO
- Switched Capacitor Filter Clock
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
3rd Party Solutions 2
Product Selector Card 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC6903CMS8#PBF | 8-Lead MSOP | ||
| LTC6903CMS8#TRPBF | 8-Lead MSOP | ||
| LTC6903HMS8#PBF | 8-Lead MSOP | ||
| LTC6903HMS8#TRPBF | 8-Lead MSOP | ||
| LTC6903IMS8#PBF | 8-Lead MSOP | ||
| LTC6903IMS8#TRPBF | 8-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC6903CMS8#PBF | PRODUCTION | |
| LTC6903CMS8#TRPBF | PRODUCTION | |
| LTC6903HMS8#PBF | PRODUCTION | |
| LTC6903HMS8#TRPBF | PRODUCTION | |
| LTC6903IMS8#PBF | PRODUCTION | |
| LTC6903IMS8#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
OscCalc Silicon Oscillator Selection & Synthesis Tool
OscCalc is a quick and easy tool to help you find the right silicon oscillator for your application.
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