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LTC6904

Features: · 1kHz to 68MHz Square Wave Output· 0.5% (Typ) Initial Frequency Accuracy· Frequency Error <1.1% Over All Settings· 0.1% Resolution· 1.7mA Typical Supply Current (f < 1MHz, VS = 3V)· 3V to 5.5V Single Supply Operation· Jitter <0.4% Typical 1kHz to 8MHz· Easy to Use SPI (LTC6903)...

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SeekIC No. : 004402687 Detail

LTC6904: Features: · 1kHz to 68MHz Square Wave Output· 0.5% (Typ) Initial Frequency Accuracy· Frequency Error <1.1% Over All Settings· 0.1% Resolution· 1.7mA Typical Supply Current (f < 1MHz, VS = 3V)·...

LTC6904 Data Sheet

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Part Number:
LTC6904
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· 1kHz to 68MHz Square Wave Output
· 0.5% (Typ) Initial Frequency Accuracy
· Frequency Error <1.1% Over All Settings
· 0.1% Resolution
· 1.7mA Typical Supply Current (f < 1MHz, VS = 3V)
· 3V 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
· MS8 Package


Application

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


Pinout

Connection Diagram


Specifications

Total Supply Voltage (V+ to GND) ................................................ 6V
Maximum Voltage on any Pin ... (GND 0.3V)   VPIN   (V+ + 0.3V)
Output Short Circuit Duration  .......................................... Indefinite
Operating Temperature Range
  - LTC6903CMS8/LTC6904CMS8 .................................. 0°C to 70°C
Storage Temperature Range .................................. 65°C to 150°C
Lead Temperature (Soldering, 10sec)..................................... 300°C


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 3V 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:f=2OCT·2078(HZ)/(2-DAC/1024);kHz <f< 68 MHz
 
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.




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