參數(shù)資料
型號(hào)： TC534CKW
廠商： Microchip Technology Inc.
英文描述： 5V Precision Data Acquisition Subsystems
中文描述： 5V的高精度數(shù)據(jù)采集子系統(tǒng)
文件頁(yè)數(shù)： 13/15頁(yè)
文件大小： 158K
代理商： TC534CKW
3-59
TELCOM SEMICONDUCTOR, INC.
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5V PRECISION DATA ACQUISITION
SUBSYSTEMS
TC530
TC534
TC530EV Evaluation Kit
The TC530EV consists of a 4" x 6" pre-assembled circuit
board that connects to the serial port of any PC or dumb
terminal. Also included is a Windows
TM*
Excel
TM*
-based
design utility that calculates component and LOAD values
based on user input, and prints a finished circuit schematic.
Please contact your local TelCom representative for more
information, or point your web browser to http://www.telcom-
semi.com.
(2) Improper sequencing of the power supply inputs
(V
DD
vs. V
CCD
) can potentially cause an improper power-up
sequence to occur in the internal state machines. It is
recommended that the digital supply, V
CCD
, be powered up
first. One method of insuring the correct power-up sequence
is to delay the analog supply using a series resistor and a
capacitor. See Figure 6, TC530/534 Typical Application.
(3) Decoupling capacitors, preferably a higher value elec-
trolytic or tantulum in parallel with a small ceramic or
tantalum, should be used liberally. This includes bypassing
the supply connections of all active components and the
voltage reference.
(4) Critical components should be chosen for stability and
low noise. The use of a metal-film resistor for R
INT
and
Polypropylene or Polyphenelyne Sulfide (PPS) capacitors
for C
INT
, C
AZ
, and C
REF
is highly recommended.
(5) The inputs and integrator section are very high imped-
ance nodes. Leakage to or from these critical nodes can
contribute measurement error. A guard-ring should be used
to protect the integrator section from stray leakage.
(6) Circuit assemblies should be scrupulously clean to
prevent the presence of contamination from assembly,
handling, or the cleaning itself. Minutely conductive trace
contaminates, easily ignored in most applications, can ad-
versely affect the performance of high impedance circuits.
The input and integrator sections should be made as com-
pact and close to the TC53x as possible.
(7) Digital and other dynamic signal conductors should be
kept as far from the TC53x’s analog section as possible. The
microcontroller or other host logic should be kept quiet
during a measurement cycle. Background activites such as
keypad scanning, display refreshing, and power switching
can introduce noise.
*All trademarks are the property of their respective owners.
相關(guān)PDF資料
PDF描述
TC530CPJ 5V PRECISION DATA ACQUISITION SUBSYSTEMS
TC530 5V PRECISION DATA ACQUISITION SUBSYSTEMS
TC534CPL 5V PRECISION DATA ACQUISITION SUBSYSTEMS
TC530COI 5V PRECISION DATA ACQUISITION SUBSYSTEMS
TC534CKW 5V PRECISION DATA ACQUISITION SUBSYSTEMS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC534CPL 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) Prec Data Acq Subsys RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TC5350A 制造商:THOMAS & BETTS 功能描述:CABLE CLAMP TC5350A
TC5350A-TB 制造商:Thomas & Betts 功能描述:Cable Accessories Mounting Base Nylon 6.6 Natural
TC5353A 制造商:Thomas & Betts 功能描述:CABLE TIE 1X2" NAT FLEX MTG BASE-AD
TC5355 制造商:Thomas & Betts 功能描述:Mount, Cable Tie; Saddle type; #8 screw; Ties up to 0.5"W.; Black Nylon 6.6 制造商:Thomas & Betts 功能描述:CABLE TIE LASHING TIE SCREW MT-#8 S 制造商:Thomas & Betts 功能描述:Cable Ties Standard Locking with Screw Mount Nylon Black Bulk
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