MAX1385BETM+ Maxim Integrated Products, MAX1385BETM+ Datasheet - Page 49

• Manufacturer Part Number: MAX1385BETM+
• Description: RF Wireless Misc IC CTRLR LDMOS BIAS 5V
• Manufacturer: Maxim Integrated Products

Specifications of MAX1385BETM+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 29. DAC Write Commands with Autocalibration
Update fine DAC_ and trigger
autocalibration.
Update high wiper coarse DAC_ and
trigger autocalibration.
Update low wiper coarse DAC_ and trigger
autocalibration.
Immediately update fine DAC_ and trigger
autocalibration.
Immediately update high wiper coarse
DAC_ and trigger autocalibration.
Immediately update low wiper coarse
DAC_ and trigger autocalibration.
Update the high, low, and fine components
of DAC_.
ACTION REQUIRED
______________________________________________________________________________________
Dual RF LDMOS Bias Controllers
Write to FINECAL_. Autocalibration
begins after writing to FINECAL_. Write
to LDAC to update fine DAC_.
Write to HIWIPE_ with HCAL set to 1.
Autocalibration begins after writing to
LDAC and high wiper coarse DAC_ is
updated thereafter.
Write to LOWIPE_ with LCAL set to 1.
Autocalibration begins after writing to
LDAC and low wiper coarse DAC_ is
updated thereafter.
Write to FINECALTHRU_.
This action is not possible. See the
recommended sequence above
“Update high wiper coarse DAC_ and
trigger autocalibration.”
This action is not possible. See the
recommended sequence “Update low
wiper coarse DAC_ and trigger
autocalibration.”
Write to HIWIPE_ with HCAL set to 1.
Write LOWIPE_ with LCAL set to 1. Write
to LDAC to update high and low wipers
with autocalibrated values. Write to
FINECALTHRU_ to trigger fine DAC_
autocalibration and update DAC_.
RECOMMENDED COMMAND
SEQUENCE
with I
2
Write to FINECALTHRU_ to immediately
update fine DAC_.
None.
None.
None.
None.
None.
HIWIPE_ and LOWIPE_ can be written to in
any order but must be followed by LDAC
and then a fine DAC_ write (to
FINECALTHRU_ or FINECAL_ with another
LDAC). This ensures that the fine DAC_
autocalibration is run after the coarse
DAC_ autocalibration.
C/SPI Interface
OTHER POSSIBLE COMMAND
SEQUENCES
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