DS4000 Digitally Controlled TCXO
DETAILED DESCRIPTION
The DS4000 digitally controlled temperature-compensated crystal oscillator (DC-TCXO) features a digital
temperature sensor, one fixed-frequency temperature-compensated square-wave output (F1), one programmable
temperature-compensated square-wave output (F2), and digital communication for frequency tuning (SDA, SCL).
Figure 2. Block Diagram
VCC
VOSC
SDA
SCL
A0
TEMPERATURE-
F2
COMPENSATED
CRYSTAL
F1
OSCILLATOR
2-WIRE
SERIAL
INTERFACE
DS4000
GND
DIGITAL
TEMPERATURE
SENSOR
GND OSC
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