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AFE4403 Datasheet(PDF) 11 Page - Texas Instruments

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Part # AFE4403
Description  AFE4403 Ultra-Small, Integrated Analog Front-End for Heart Rate Monitors and Low-Cost Pulse Oximeters
PDF  97 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

AFE4403 Datasheet(HTML) 11 Page - Texas Instruments

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}v[šŒ, can be high or low.
A7
A6
A1
A0
SPISTE
SPISIMO
SCLK
D22
D17
D16
D6
D1
SPISOMI
XIN
tCLK
tSTECLK
tSPICLK
tSOMIPD
tSOMIHD
tCLKSTEL
tCLKSTEH
tSIMOSU
tSIMOHD
31
D23
tSOMIPD
D7
0
7
D0
23
AFE4403
www.ti.com
SBAS650B – MAY 2014 – REVISED JULY 2014
7.6 Timing Requirements
PARAMETER
MIN
TYP
MAX
UNIT
tCLK
Clock frequency on the XIN pin
8
MHz
tSCLK
Serial shift clock period
62.5
ns
tSTECLK
STE low to SCLK rising edge, setup time
10
ns
tCLKSTEH,L
SCLK transition to SPI STE high or low
10
ns
tSIMOSU
SIMO data to SCLK rising edge, setup time
10
ns
tSIMOHD
Valid SIMO data after SCLK rising edge, hold time
10
ns
tSOMIPD
SCLK falling edge to valid SOMI, setup time
17
ns
tSOMIHD
SCLK rising edge to invalid data, hold time
0.5
tSCLK
(1) The SPI_READ register bit must be enabled before attempting a register read.
(2) Specify the register address whose contents must be read back on A[7:0].
(3) The AFE outputs the contents of the specified register on the SPISOMI pin.
Figure 1. Serial Interface Timing Diagram, Read Operation(1)(2)(3)
Copyright © 2014, Texas Instruments Incorporated
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