XR2209 查看數據表（PDF） - Exar Corporation

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XR2209

Voltage-Controlled Oscillator

Exar Corporation 

XR-2209

Figure 13 is a simplified configuration for operation with

split supplies in excess of +7V. This circuit eliminates the

diode D1 used in Figure 12 by grounding pin 5 directly;

however, the triangle wave output now has a +0.6V DC

offset with respect to ground.

VCC

VCC

C

1mF

RL

12

VCC C1

3

C 2 SWO 7

XR-2209

8

TWO

BIAS 5

Square Wave

Output

Triangle Wave

Output

TR

VEE

4

6

VEE

R

1mF

VEE

Figure 13. Split-Supply Operation, Simplified Configuration

Rev. 2.02

11

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