Timing Diagrams; Updated Figure 2 - Texas Instruments PGA411-Q1 Instruction Manual

PGA411-Q1
SLASE76E – NOVEMBER 2015 – REVISED AUGUST 2017

6.14 Timing Diagrams

NCS
SCLK
SDI
SDO
t
pd_soen
NRESET
70 µs
nPOR
STATE
(Reset)
EEPROM Data
Download
Approx. 200 µs
Boost Reg
Enable
Exciter
Enable
Tracking L
Enable
Normal
CRC
Wait
1.3 µs
2 ms
Wait
100 ms
ORD
Data Update
[12:0]
100 ns
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t t t
su_cs whigh wlow
t t
su_si h_si
t
pd_so
Figure 1. SPI Timing Diagram
Diagnostics
Initial Auto
Calibration
Approx. 200 µs
CRC
Wait
1.3 µs
2 ms
Auto Calibration
Approx.
2.3 ms
Figure 2. Power-Up Timing Diagram
Product Folder Links:
t
h_cs
t
pd_sodis
Diagnostics
LBIST
2.3 ms
ABIST
5.2 ms
Normal
Wait
2 ms
Auto Calibration
Wait
100 ms
Data Update
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PGA411-Q1
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t
w_cs
t
su_cs
t
su_si
t
t
pd_so
pd_soen
Normal
CRC
Wait
1.3 µs
Wait
100 ms
Normal
CRC
Wait
2 ms
1.3 µs
Wait
Approx. 100 ms
2.3 ms
Data Update
. . .