MAX4473 データシートの表示（PDF） - Maxim Integrated
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MAX4473 Datasheet PDF : 9 Pages
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Low-Cost, Low-Voltage, PA Power Control
Amplifier for GSM Applications
(See Test Circuit, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
1.4
TA = -40°C
1.2
TA = +25°C
1.0
TA = +85°C
0.8
0.6
SHDN = VCC
PC = GND
0.4
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5
SUPPLY VOLTAGE (V)
70
60
50
40
30
20
10
0
-10
-20
-30
10
ERROR-AMPLIFIER RESPONSE
PHASE
0 MAX4473 toc03
AVCL = 1000
VCC = 6.5V -18
VCM = VCC / 2
VPC = 0
-36
-54
GAIN
-72
-90
ERROR
-108
AMPLIFIER
-126
100kΩ
10kΩ
300pF
-144
100Ω
-162
-180
100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
Typical Operating Characteristics
VRG1 / VPC RATIO vs. VPC RESPONSE
0.1100
VCC = 6.0V
0.1075
0.1050
0.1025
0.1000
0.0975
0.0950
0.0925
0.0900
0123456
VPC (V)
ENABLE/DISABLE TIME
SHDN
2V/div
GND
VCC = 6.5V
VPC = 2V
OUT
500mV/div
GND
500ns/div
ERROR-AMPLIFIER
OUTPUT LOW VOLTAGE vs. TEMPERATURE
0.30 VCC = 6.5V, RL = 500Ω to VCC / 2
0.25
0.20
0.15 VCC = 2.7V, RL = 500Ω to VCC / 2
0.10
0.05
0
-40
VCC = 2.7V, RL = 10kΩ to VCC / 2
VCC = 6.5V, RL = 10kΩ to VCC / 2
-15
10
35
60
85
TEMPERATURE (°C)
ERROR-AMPLIFIER
OUTPUT HIGH VOLTAGE vs. TEMPERATURE
0.45
0.40 VCC = 6.5V, RL = 500Ω to VCC / 2
0.35
0.30
0.25
VCC = 2.7V, RL = 500Ω to VCC / 2
0.20
0.15
0.10
VCC = 6.5V, RL = 10kΩ to VCC / 2
0.05
0
-40
VCC = 2.7V, RL = 10kΩ to VCC / 2
-15
10
35
60
85
TEMPERATURE (°C)
4 _______________________________________________________________________________________
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