Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

CS5451A Datasheet(PDF) 9 Page - Cirrus Logic

No. de pieza CS5451A
Descripción Electrónicos  Six-channel, Delta-sigma Analog-to-digital Converter
Download  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  CIRRUS [Cirrus Logic]
Página de inicio  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS5451A Datasheet(HTML) 9 Page - Cirrus Logic

Back Button CS5451A_05 Datasheet HTML 5Page - Cirrus Logic CS5451A_05 Datasheet HTML 6Page - Cirrus Logic CS5451A_05 Datasheet HTML 7Page - Cirrus Logic CS5451A_05 Datasheet HTML 8Page - Cirrus Logic CS5451A_05 Datasheet HTML 9Page - Cirrus Logic CS5451A_05 Datasheet HTML 10Page - Cirrus Logic CS5451A_05 Datasheet HTML 11Page - Cirrus Logic CS5451A_05 Datasheet HTML 12Page - Cirrus Logic CS5451A_05 Datasheet HTML 13Page - Cirrus Logic  
Zoom Inzoom in Zoom Outzoom out
 9 / 13 page
background image
CS5451A
DS635F2
9
4.
FUNCTIONAL DESCRIPTION
4.1
Analog Inputs
The CS5451A is equipped with six fully differential input
channels. The inputs VIN(1-3)
± and IIN(1-3)± are des-
ignated as the voltage and current channel inputs, re-
spectively. The full-scale differential input voltage for
the
current
and
voltage
channel
is
±800 mVP
(gain = 1x).
4.1.1
Voltage Channel
The output of the line voltage resistive divider or trans-
former is connected to the VIN(1-3)+ and VIN(1-3)- in-
put pins of the CS5451A. The voltage channels are
equipped with a 1x fixed gain amplifier. The full-scale
signal level that can be applied to the voltage channel is
±800 mV. If the input signal is a sine wave the maximum
RMS voltage is:
which is approximately 70.7% of maximum peak volt-
age.
4.1.2
Current Channel
The output of the current sense resistor or transformer
is connected to the IIN(1-3)+ and IIN(1-3)- input pins of
the CS5451A. To accommodate different current-sens-
ing devices the current channels incorporates a pro-
grammable gain amplifier (PGA) that can be set to one
of two input ranges. Input pin GAIN (see Table 1) define
the PGA’s two gain selections and corresponding max-
imum input signal level.
4.2
Digital Filters
The decimating digital filter samples the modulator bit
stream at XIN/8 and produces a fixed output word rate.
The digital filters are implemented as sinc3 filters with
the following transfer function:
The decimation rate is determined by the exponent DR
(see Table 2).
The output word rate (OWR) is selected by the OWRS
pin and defined by Table 2.
4.3
Performing Measurements
The ADC outputs are transferred in 16-bit, signed (two’s
complement) data formats. Table 3 defines the relation-
ship between the differential voltage applied to any one
of the input channels and the corresponding output
code. Note that for the current channels, the state of the
GAIN input pin is assumed to driven low such that the
PGA gain on the current channels is 1x. If the PGA gain
of the current channels is set to 20x, a +40 mV voltage
is applied to any pair of IIN(1-3)
± pins would cause an
output code of 32767.
Table 3. Differential Input Voltage vs. Output Code
4.4
Serial Interface
The CS5451A communicates with a target device via a
master serial data output port. Output data is provided
on the SDO output synchronous with the SCLK output.
A third output, FSO, is a framing signal used to signal
the start of output data. These three outputs will be driv-
en as long as the SE (serial enable) input is held high.
Otherwise, these outputs will be high-impedance.
Data out (SDO) changes as a result of SCLK falling, and
always outputs valid data on the rising edge of SCLK.
When data is being transferred the SCLK frequency is
XIN/8 when OWRS is low or XIN/4 when OWRS is high.
GAIN
Maximum Input Range
0
±40mV
20x
1
±800mV
1x
Table 1. Current Channel PGA Setting
800mV
P
2
-----------------
565.69mV
RMS
Hz
()
1z
DR
1z
1
----------------------
⎝⎠
⎜⎟
⎛⎞ 3
=
OWRS
DR
Output Word Rate
0
256
XIN/2048
1
128
XIN/1024
Table 2. Decimation Filter OWR
Differential Input
Voltage (mV)
Output Code
(hexadecimal)
Output Code
(decimal)
+800
7FFF
32767
0.0122 to 0.0366
0001
1
-0.0122 to 0.0122
0000
0
-0.0122 to -0.0366
FFFF
-1
-800
8000
-32768
Notes: Assume PGA gain is set to 1x.


Número de pieza similar - CS5451A_05

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Cirrus Logic
CS5451A-IS CIRRUS-CS5451A-IS Datasheet
188Kb / 14P
   SIX CHANNEL DELTA SIGMA ANALOG TO DIGITAL CONVERTER
CS5451A-IS CIRRUS-CS5451A-IS Datasheet
121Kb / 14P
   Six-channel, Delta-sigma Analog-to-digital Converter
CS5451A-ISZ CIRRUS-CS5451A-ISZ Datasheet
121Kb / 14P
   Six-channel, Delta-sigma Analog-to-digital Converter
CS5451A CIRRUS-CS5451A_10 Datasheet
121Kb / 14P
   Six-channel, Delta-sigma Analog-to-digital Converter
More results

Descripción similar - CS5451A_05

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Cirrus Logic
CS5451A CIRRUS-CS5451A Datasheet
188Kb / 14P
   SIX CHANNEL DELTA SIGMA ANALOG TO DIGITAL CONVERTER
CS5451A CIRRUS-CS5451A_10 Datasheet
121Kb / 14P
   Six-channel, Delta-sigma Analog-to-digital Converter
logo
List of Unclassifed Man...
CS5451 ETC-CS5451 Datasheet
365Kb / 14P
   SIX CHANNEL DELTA SIGMA ANALOG TO DIGITAL CONVERTER
logo
Texas Instruments
PCM1608 TI1-PCM1608_15 Datasheet
1,012Kb / 46P
[Old version datasheet]   Delta-Sigma Digital-to-Analog Converter
logo
Cirrus Logic
CS5471 CIRRUS-CS5471 Datasheet
356Kb / 14P
   DUAL CHANNEL DELTA SIGMA ANALOG TO DIGITAL CONVERTER
logo
Texas Instruments
TLC320AD58C TI-TLC320AD58C Datasheet
178Kb / 27P
[Old version datasheet]   Sigma-Delta Stereo Analog-to-Digital Converter
TLC320AD57 TI1-TLC320AD57 Datasheet
135Kb / 21P
[Old version datasheet]   Sigma-Delta Stereo Analog-to-Digital Converter
TLC320AD57C TI-TLC320AD57C Datasheet
133Kb / 21P
[Old version datasheet]   Sigma-Delta Stereo Analog-to-Digital Converter
TLC320AD58 TI1-TLC320AD58 Datasheet
192Kb / 27P
[Old version datasheet]   Sigma-Delta Stereo Analog-to-Digital Converter
ADC12EU050 TI1-ADC12EU050 Datasheet
989Kb / 44P
[Old version datasheet]   45 MSPS Sigma-Delta Analog-to-Digital Converter
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com