DS1870
LDMOS RF Power-Amplifier Bias
Controller
_____________________________________________________________________ 5
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +4.5V to 5.5V, T
A
= -40°C to +95°C, timing referenced to V
IL(MAX)
and V
IH(MIN)
.) (Figure 3)
Note 1: All voltages referenced to ground.
Note 2: Supply current is measured with all logic inputs at their inactive state (SDA = SCL = V
CC
) and driven to well-defined logic
levels. All outputs are disconnected.
Note 3: Absolute linearity is the difference of measured value from expected value at the DAC position. Expected value is a
straight line from measured minimum position to measured maximum position.
Note 4: Relative linearity is the deviation of an LSB DAC setting change vs. the expected LSB change. Expected LSB change is
the slope of the straight line from measured minimum position to measured maximum position.
Note 5: This parameter is guaranteed by design.
Note 6: See Figure 1.
Note 7: I
2
C interface timing shown is for fast-mode (400kHz) operation. This device is also backward compatible with I
2
C stan-
dard-mode timing.
Note 8: C
B
—total capacitance of one bus line in picofarads.
Note 9: EEPROM write begins after a stop condition occurs.
