12.8MHz to 51.84MHz TCXO

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7

DS4026

GNDA

100nF

100nF

100nF

20

Ω

100

μF ±5%

CERAMIC

GNDOSC

N.C.

N.C.

N.C.

FOUT

GNDD

SCL

SDA

GND

N.C.

N.C.

Pin Description

PIN

NAME

FUNCTION

1

GNDA

Ground for DAC

Voltage Reference Output. This pin must be decoupled with a 100µF ceramic capacitor to ground.

Power Supply for Digital Control and Temperature Sensor. This pin must be decoupled with a 100nF

capacitor to ground.

Power Supply for Oscillator Circuit. This pin must be decoupled with a 100nF capacitor to ground.

5

GNDOSC

Ground for Oscillator Circuit

6–10

N.C.

No Connection. Must be connected to ground.

11

GND

Ground for Digital Control, Temperature Sensor, and Controller Substrate

12

SDA

Serial Data Input/Output. SDA is the data input/output for the I

requires an external pullup resistor.

13

SCL

Serial Clock Input. SCL is the clock input for the I

movement on the serial interface.

14

GNDD

Ground for Oscillator Output Driver

15

FOUT

Frequency Output, CMOS Push-Pull

16

Power Supply for Oscillator Output Driver. This pin must be decoupled with a 100nF capacitor to

ground. A 20

Figure 1. Typical Operating Circuit