THS1009_14 Datasheet, PDF (17/31 Pages) Texas Instruments – Simultaneous Sampling of Two Single-Ended Signals or One Differential Signals or Combination of Both

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THS1009
SLAS287A – AUGUST 2000 – REVISED DECEMBER 2002
Writing to Control Register 0 and Control Register 1
The 10-bit wide control register 0 and control register 1 can be programmed by addressing the desired control
register and writing the register value to the ADC. The addressing is performed with the upper bits RA0 and RA1.
During this write process, the data bits D0 to D9 contain the desired control register value. Table 7 shows the
addressing of each control register.
Table 7. Control Register Addressing
D0 – D9
Desired register value
Desired register value
Desired register value
Desired register value
RA0
0
1
0
1
RA1
0
0
1
1
Addressed Control Register
Control register 0
Control register 1
Reserved for future
Reserved for future
INITIALIZATION OF THE THS1009
The initialization of the THS1009 should be done according to the configuration flow shown in Figure 27.
Start
Use Default
No
Values?
Yes
Write 0x401 to
THS1009
(Set Reset Bit in CR1)
Write 0x401 to
THS1009
(Set Reset Bit in CR1)
Clear RESET By
Writing 0x400 to
CR1
Clear RESET By
Writing 0x400 to
CR1
Write the User
Configuration to
CR0
Write The User
Configuration to
CR1 ( Must
Exclude RESET)
Continue
Figure 27. THS1009 Configuration Flow
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