Specifications

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products
Page 29 of 42
Figure 3. Simplified initialize PWM and pre-charge state diagram.
Initialize PWM and Precharge
State Diagram
Configure
PWM Mode
Set Boost
value
if Precharge
is Enabled
Sample
Temp
Bias
VCC
RSSI
Calculate
Bias and
Mod
PWM Values
Increase
PWM Value
(Decrease
Voltage)
Set PWM
to Output a
High Voltage
Compare
New Value to
Final Desired
Value
Output New
Value if < Final
Desired Value
Sample
Temp
Bias
V
CC
RSSI
Sample
Temp
Bias
V
CC
RSSI
Output
Calibrated
Values
Calculate
Bias and
Mod
PWM Values
Loop 12x
Calculate
Bias and
Mod
PWM Values
Loop