TC9402CPD

更新时间： 2024-02-19 12:34:59

品牌	Logo	应用领域
美国微芯 - MICROCHIP		转换器光电二极管
页数	文件大小	规格书
20页	504K
描述
Voltage-to-Frequency/Frequency-to-Voltage Converters

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中文翻译

获取价格

技术参数
数据手册
替代型号

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TC9402CPD 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.77
Is Samacsys：	N	转换器类型：	VOLTAGE TO FREQUENCY CONVERTER
JESD-30 代码：	R-GDIP-T14	端子数量：	14
封装主体材料：	CERAMIC, GLASS-SEALED	封装形状：	RECTANGULAR
封装形式：	IN-LINE	认证状态：	Not Qualified
表面贴装：	NO	端子形式：	THROUGH-HOLE
端子位置：	DUAL	Base Number Matches：	1

TC9402CPD 数据手册

TC9400/9401/9402

FIGURE 7-4:

DC - 10kHz CONVERTER

+5V

V+

OUT

TC9400A

TC9401A

TC9402A

Output

Common

See

Figure 7-1:

Threshold

Detect

"Frequency

Input Level

Shifter"

OUT

3µsec

Delay

*Optional/If

Buffer is Needed

Threshold

Detector

REF

OUT

REF

56pF

12pF

60pF

Offset

Adjust

INT

1000pF

+5V

100kΩ

2.2kΩ

Amp

Out

1MΩ

–

Amp

OUT

Zero Adjust

2kΩ

BIAS

REF

GND

10kΩ

REF

(Typically -5V)

-5V

FIGURE 7-5:

RIPPLE FILTER

7.4

Output Filtering

The output of the TC9400 has a sawtooth ripple super-

imposed on a DC level. The ripple will be rejected if the

TC9400 output is converted to a digital value by an inte-

grating analog-to-digital converter, such as the TC7107

or TC7109. The ripple can also be reduced by increas-

ing the value of the integrating capacitor, although this

will reduce the response time of the F/V converter.

OUT

REF

47pF

TC9400

.001µF

200

AMP OUT

The sawtooth ripple on the output of an F/V can be

eliminated without affecting the F/V's response time by

using the circuit in Figure 7-5. The circuit is a capaci-

tance multiplier, where the output coupling capacitor is

multiplied by the AC gain of the Op Amp. A moderately

fast Op Amp, such as the TL071, should be used.

0.1µF

.01µF

GND

OUT

–

TL071

-5

DS21483B-page 14

2002 Microchip Technology Inc.

1...11 12 131415 16 17...20

中文翻译

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TC9402CPD 替代型号

型号	品牌	替代类型	描述	数据表
TC9401CPD	MICROCHIP	类似代替	Voltage-to-Frequency/Frequency-to-Voltage Converters

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