LTC6904(RevA) 数据手册 ( 数据表 ) - Linear Technology

DESCRIPTION
The LTC®6903/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.

FEATURES
■ 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
■ –40°C to 125°C Operation
■ MS8 Package

APPLICATIONS
■ Precision Digitally Controlled Oscillator
■ Power Management
■ Direct Digital Frequency Synthesis (DDS)
   Replacement
■ Replacement for DAC and VCO
■ Switched Capacitor Filter Clock