厂商Maxim Integrated 集成电路集成电路 MAX038 数据手册，datasheet pdf下载

型号：	MAX038
厂商：	Maxim Integrated
分类：	集成电路
描述：	high-frequency waveform generator
PDF：	预览
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19-0266; Rev 2a; 9/96

Hig h -Fre q u e n c y Wa ve fo rm Ge n e ra t o r

MAX038

_______________Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

The MAX038 is a high-frequency, precision function

generator producing accurate, high-frequency triangle,

sawtooth, sine, square, and pulse waveforms with a

minimum of external components. The output frequency

can be controlled over a frequency range of 0.1Hz to

20MHz b y a n inte rna l 2.5V b a nd g a p volta g e

reference and an external resistor and capacitor. The

duty cycle can be varied over a wide range by applying

a ±2.3V control signal, facilitating pulse-width modula-

tion a nd the g e ne ra tion of s a wtooth wa ve forms .

Frequency modulation and frequency sweeping are

a c hie ve d in the s a me wa y. The d uty c yc le a nd

frequency controls are independent.

♦ 0.1Hz to 20MHz Operating Frequency Range

♦ Triangle, Sawtooth, Sine, Square, and Pulse

Waveforms

♦ Independent Frequency and Duty-Cycle

Adjustments

♦ 350 to 1 Frequency Sweep Range

♦ 15% to 85% Variable Duty Cycle

♦ Low-Impedance Output Buffer: 0.1Ω

♦ Low-Distortion Sine Wave: 0.75%

♦ Low 200ppm/°C Temperature Drift

Sine, square, or triangle waveforms can be selected at

the outp ut b y s e tting the a p p rop ria te c od e a t two

TTL-compatible select pins. The output signal for all

______________Ord e rin g In fo rm a t io n

waveforms is a 2V

signal that is symmetrical around

P-P

PART

TEMP. RANGE

0°C to +70°C

-40°C to +85°C

PIN-PACKAGE

20 Plastic DIP

20 SO

g round . The low-imp e d a nc e outp ut c a n d rive up

to ±20mA.

MAX038CPP

MAX038CWP

MAX038C/D

MAX038EPP

MAX038EWP

The TTL-c omp a tib le SYNC outp ut from the inte rna l

oscillator maintains a 50% duty cycle—regardless of

the duty cycle of the other waveforms—to synchronize

other devices in the system. The internal oscillator can

be synchronized to an external TTL clock connected

to PDI.

Dice*

20 Plastic DIP

20 SO

*Contact factory for dice specifications.

________________________Ap p lic a t io n s

__________________P in Co n fig u ra t io n

Precision Function Generators

Voltage-Controlled Oscillators

Frequency Modulators

TOP VIEW

REF

GND

V-

Pulse-Width Modulators

OUT

GND

V+

Phase-Locked Loops

Frequency Synthesizer

MAX038

FSK Generator—Sine and Square Waves

COSC

GND

DADJ

FADJ

GND

DV+

DGND

SYNC

PDI

PDO

GND

IIN

DIP/SO

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.