MAX11008 Datasheet, PDF (35/67 Pages) Maxim Integrated Products – Dual RF LDMOS Bias Controller with Nonvolatile Memory

Dual RF LDMOS Bias Controller with
Nonvolatile Memory
(MEASUREMENT VALUE
TEMPERATURE OR CURRENT)
HIGH THRESHOLD
BUILT-IN HYSTERESIS
BUILT-IN HYSTERESIS
LOW THRESHOLD
ALARM
TIME
OUTPUT
COMPARATOR MODE
(ACTIVE LOW)
INTERRUPT MODE
(ACTIVE LOW)
TIME
ALARM FLAG
REGISTER READ
ALARM FLAG
REGISTER READ
ALARM FLAG
REGISTER READ
Figure 19. ALARM Output Signal Example—Alarm Thresholds Configured for Window Mode
HIGHEST POSSIBLE THRESHOLD
VALUE (DEFAULT VALUE FOR HIGH
THRESHOLD REGISTER)
ALARM OUTPUT ASSERTED
WHEN MEASURED VALUE
RISES ABOVE THIS LEVEL
BUILT-IN 8–64 LSBs
OF HYSTERESIS
BUILT-IN 8–64 LSBs
OF HYSTERESIS
ALARM OUTPUT ASSERTED
WHEN MEASURED VALUE
FALLS BELOW THIS LEVEL
RANGE OF VALUES THAT DO
NOT CAUSE AN ALARM
ALARM OUTPUT DEASSERTED
WHEN MEASURED VALUE FALLS
BELOW THIS LEVEL*
HIGH THRESHOLD
LOW THRESHOLD
ALARM OUTPUT DEASSERTED
WHEN MEASURED VALUE RISES
ABOVE THIS LEVEL*
*ONLY WHEN ALARM IS CONFIGURED FOR COMPARATOR MODE. WHEN IN INTERRUPT
MODE, FLAG REGISTER MUST BE READ FOR ALARM TO BE DEASSERTED.
LOWEST POSSIBLE THRESHOLD
VALUE (DEFAULT VALUE FOR LOW
THRESHOLD REGISTER)
Figure 20. Window-Mode Alarm-Threshold Diagram
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