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2.4.7 Auxiliary D/A Converters Slope (AGC, AFC, PWRCONT)
AUXFS[1:0]
SETTING
SLOPE
NOMINAL LSB
VALUE
(V)
NOMINAL OUTPUT VOLTAGE
FOR DIGITAL CODE = 128
(MIDRANGE)
(V)
NOMINAL OUTPUT VOLTAGE
FOR DIGITAL CODE = 256†
(MAX VALUE)
(V)
00 2.5/256 0.0098 1.25 2.5
01 Do not use Do not use Do not use Do not use
10 4/256 0.0156 2 4
11 4.5/256 0.0176 2.25 4.5
†
The maximum input code is 255. The value shown for 256 is extrapolated.
2.4.8 Auxiliary D/A Converters Slope (LCDCONTR)
AUXFS[1:0]
SETTING
SLOPE
NOMINAL LSB
VALUE
(V)
NOMINAL OUTPUT VOLT-
AGE FOR DIGITAL CODE = 8
(MIDRANGE)
(V)
NOMINAL OUTPUT VOLTAGE
FOR DIGITAL CODE = 16
§
(MAX VALUE)
(V)
00 2.5/16 0.1563 1.25 2.5
01 Do not use Do not use Do not use Do not use
10 4/16 0.2500 2 4
11 4.5/16 0.2813 2.25 4.5
‡
The maximum input code is 15. The value shown for 16 is extrapolated.
2.4.9 RSSI/Battery A/D Converter
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Input range AV
DD
= 3 V, 4.5 V, 5 V 0.2 2 V
Resolution 8 bits
Conversion time AV
DD
= 3 V, 4.5 V, 5 V 20 µs
Gain + offset error (full scale) ±3% ±4%
Differential nonlinearity ±0.75 ±1 LSB
Integral nonlinearity ±0.75 ±1 LSB
Input resistance 1 2 MΩ