18

LT1013/LT1014

–

+

1/2 LT1013

1

8

4

3

2

+

–

1/2 LT1013

7

6

5

+5V

1M*

5M*

20k

4.22M*

4.22M*

100k

+5V

1M*

3.2k

1M*

6.25k

YSI 44201

2.16k*

3.4k*

4.3k

TEMPERATURE

COMPENSATION

GENERATOR

LT1009

2.5V

+5V

680

Ω

100

Ω

100k

560k

MV-209

3.5MHz

XTAL

OSCILLATOR SUPPLY

STABILIZATION

OSCILLATOR

510pF

510pF

3.5MHz OUTPUT

0.03ppm/

°C, 0°C–70°C

2N2222

1% FILM

3.5MHz XTAL = AT CUT – 35

°20'

3mA POWER DRAIN

THERMISTOR-AMPLIFIER-VARACTOR NETWORK GENERATES

A TEMPERATURE COEFFICIENT OPPOSITE THE CRYSTAL TO

MINIMIZE OVERALL OSCILLATOR DRIFT

*

†

Low Power, 5V Driven, Temperature Compensated Crystal Oscillator (TXCO)

†

Step-Up Switching Regulator for 6V Battery

–

+

–

+

LT1013

5

8

4

6

7

LT1013

3

2

1

0.1

200k

LT1004

1.2V

130k

300

Ω

OUTPUT

+15V

50mA

INPUT

+6V

+

100

1N5821

2N5262

L1

1MHY

+

2.2

5.6k

5.6k

220pF

220k

1M

22k

2N2222

0.001

LT = AIE–VERNITRON 24–104

78% EFFICIENCY