DS1870 데이터 시트보기 (PDF) - Maxim Integrated
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DS1870 Datasheet PDF : 28 Pages
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LDMOS RF Power-Amplifier Bias
Controller
Functional Diagram
VCC
VCC
SDA
I2C INTERFACE
SCL
CONTROL
A0
A1
ADDRESS
GENERATION
A2
I2C DATA BUS
32 BYTES
USER
MEMORY
OFFSET
CALIBRATION
REGISTERS
++
∑
GAIN
CALIBRATION
REGISTERS
13-BIT
ADC
ON-CHIP
TEMP SENSOR
VCC
VD
ID1
VD1
LOAD
INDEX
POT1
DRAIN
LUT
TABLE 4
(64 BYTES)
LOAD
TEMP
INDEX
POT1
TEMP
LUT
TABLE 2
(72 BYTES)
VD
ID2
VD2
INDEX
POT2
DRAIN
LUT
TABLE 5
(64 BYTES)
INDEX
POT2
TEMP
LUT
TABLE 3
(72 BYTES)
HI AND LO
LIMITS FOR
TEMP, VCC,
VD, ID1, ID2
++
∑
MEASURED
VALUES FOR
TEMP, VCC,
VD, ID0, ID1
LIMIT FLAG
REGISTERS
LIMIT
COMPARATOR
DS1870
FAULT
MASK
POT2
RPOT
RS
+
GND
∑
+
RS
POT1
RPOT
VD
ID1
ID2
FAULT
HCOM
W2
L2
W1
L1
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