MAX1385BETM+ Maxim Integrated Products, MAX1385BETM+ Datasheet - Page 46

• 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

Dual RF LDMOS Bias Controllers
with I
3) Write to the Fine DAC1/DAC2 Write-Through Input
Figure 23. ADC Clock Mode 11, Example 1
Figure 24. ADC Clock Mode 11, Example 2
46
register without autocalibration (FINETHRU1/
FINETHRU2). If the coarse DAC1/DAC2 low wiper is
higher than the coarse DAC1/DAC2 high wiper,
invert the fine DAC1/DAC input register code.
INTERNAL
______________________________________________________________________________________
CNVST
USER WRITES TO THE ANALOG-TO-DIGITAL CONVERSION REGISTER
TO SET UP CONVERSION SCAN OF INTERNAL
TEMPERATURE, PGAOUT1, AND ADCIN1
BUSY
INTERNAL
USER WRITES TO THE ANALOG-TO-DIGITAL
CONVERSION REGISTER TO SET UP CONVERSION
SCAN OF ADCIN2, EXTERNAL TEMPERATURE
SENSOR2, AND PGAOUT2
CNVST
BUSY
2
t
CNV11
C/SPI Interface
INT REFERENCE POWERS
INT REFERENCE POWERS
UP IN ~60µs
UP IN ~60µs
t
APUINT
ADCIN2 CONVERSION
RESULT STORED IN FIFO
TEMP CONVERSION
POWERED UP
IN ~40µs
REF STAYS
IDLE, BUT
INTERNAL TEMPERATURE
CONVERSION RESULT IS
STORED IN FIFO
t
CNV11
The resulting output when the high wiper is higher than
the low wiper is shown below:
where FINECODE is the value written to the Fine
DAC1/DAC2 Input register, and LOWCODE is the value
IDLE, BUT REF
SENSOR STAY
POWERED UP
TEMP CONVERSION
V
AND TEMP
DACREF
2
IN ~40µs
18
t
ACQ11
×
EXTERNAL TEMPERATURE
SENSOR 2
CONVERSION RESULT
STORED IN FIFO
FINECODE
PGAOUT1
CONVERSION RESULT
STORED IN FIFO
IDLE, BUT REF
SENSOR STAY
POWERED UP
AND TEMP
IDLE, BUT REF
SENSOR STAY
POWERED UP
AND TEMP
+
t
ACQ11
t
ACQ11
V
DACREF
PGAOUT2
CONVERSION RESULT
STORED IN FIFO
2
8
END OF SCAN, REF
AND TEMP SENSOR
POWER DOWN
AUTOMATICALLY
ADCIN1
CONVERSION RESULT
STORED IN FIFO
×
END OF SCAN, REF
AND TEMP SENSOR
POWER DOWN
AUTOMATICALLY
LOWCODE