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參數(shù)資料
| 型號(hào)： | MAX038CWP |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 16/17頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC GEN WAVEFORM HI-FREQ 20-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 36 |
| 頻率： | 0.1Hz ~ 20MHz |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 電流 - 電源： | 45mA |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 20-SOIC（0.295"，7.50mm 寬） |
| 包裝： | 管件 |
| 供應(yīng)商設(shè)備封裝： | 20-SOIC W |
| 安裝類型： | 表面貼裝 |
| 其它名稱： | Q1136045 |
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Detailed Description
The MAX038 is a high-frequency function generator
that produces low-distortion sine, triangle, sawtooth, or
square (pulse) waveforms at frequencies from less than
1Hz to 20MHz or more, using a minimum of external
components. Frequency and duty cycle can be inde-
pendently controlled by programming the current, volt-
age, or resistance. The desired output waveform is
selected under logic control by setting the appropriate
code at the A0 and A1 inputs. A SYNC output and
phase detector are included to simplify designs requir-
ing tracking to an external signal source.
The MAX038 operates with ±5V ±5% power supplies.
The basic oscillator is a relaxation type that operates by
alternately charging and discharging a capacitor, CF,
with constant currents, simultaneously producing a tri-
angle wave and a square wave (Figure 1). The charg-
ing and discharging currents are controlled by the cur-
rent flowing into IIN, and are modulated by the voltages
applied to FADJ and DADJ. The current into IIN can be
varied from 2A to 750A, producing more than two
decades of frequency for any value of CF. Applying
±2.4V to FADJ changes the nominal frequency (with
VFADJ = 0V) by ±70%; this procedure can be used for
fine control.
Duty cycle (the percentage of time that the output wave-
form is positive) can be controlled from 10% to 90% by
applying ±2.3V to DADJ. This voltage changes the CF
charging and discharging current ratio while maintain-
ing nearly constant frequency.
High-Frequency Waveform Generator
MAX038
OSCILLATOR
CURRENT
GENERATOR
2.5V
VOLTAGE
REFERENCE
OSC B
OSC A
TRIANGLE
SINE
SHAPER
COMPARATOR
PHASE
DETECTOR
MUX
COSC
GND
5
6
CF
8
7
10
FADJ
DADJ
IIN
REF
1
17
20
2, 9, 11, 18
V+
V-
GND
RF
RD
RIN
+5V
-5V
-250
μA
SINE
TRIANGLE
SQUARE
A0
A1
OUT
SYNC
PDO
PDI
19
14
12
13
RL
CL
3
4
DGND
DV+
15
16
+5V
*
= SIGNAL DIRECTION, NOT POLARITY
= BYPASS CAPACITORS ARE 1
μF CERAMIC OR 1μF ELECTROLYTIC IN PARALLEL WITH 1nF CERAMIC.
*
Figure 1. Block Diagram and Basic Operating Circuit
MAX038
8
Maxim Integrated
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX038CWP+ | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX038CWP+T | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX038CWP-T | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX038EPP | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:High-Frequency Waveform Generator |
| MAX038EVKIT | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Evaluation Kit for the MAX038 |
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