LT5504 查看數據表（PDF） - Linear Technology
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LT5504 Datasheet PDF : 8 Pages
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LT5504
ELECTRICAL CHARACTERISTICS TA = 25°C. VCC = 3V, PLO = –10dBm, unless otherwise noted. (Notes 2, 3)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Output Voltage at fRF = 2500MHz, fLO = 2260MHz
Linear Dynamic Range (Note 4)
58
70
dB
Output Voltage
Input = –70dBm
Input = –20dBm
Input = 0dBm
0.3
V
1.45
V
1.8
V
Average Slope
Input from –50dBm to –20dBm
16
23
mV/dB
Output Interface
Current Drive Capability
400
µA
Output Noise Spectral Density
At 100KHz
At 10MHz
3.9
µV/√Hz
0.32
µV/√Hz
Output Response Time (Note 5)
RF Input Pin from No Signal to 0dBm
200
ns
Power Up/Down
tON
Turn ON Time (Note 5)
Turn OFF Time (Note 5)
400
ns
4
µs
Input Resistance
30
kΩ
Power Supply
Enable Turn ON Voltage (Note 7)
Disable Turn OFF Voltage (Note 7)
0.6 • VCC
V
0.4 • VCC
V
VCC
Supply Voltage
ICC
Supply Current
Shutdown Current
2.7
5.25
V
14.7
22
mA
30
µA
Note 1: Absolute Maximum Ratings are those values beyond which the
life of a device may be impaired.
Note 2: Tests are performed as shown in the configuration of Figure 5.
Note 3: Specifications over the –40°C to 85°C temperature range are
guaranteed by design, characterization and correlation with statistical
process controls.
Note 4: The Linear Dynamic Range is defined as the range over which the
output slope is at least 50% of the average slope from –50dBm to –20dBm.
Note 5: The output voltage is settled to the full specification within 1dB.
Note 6: Refer to Figure 1 and Applications Information.
Note 7: Refer to Pin Functions description.
TYPICAL PERFOR A CE CHARACTERISTICS
Output Voltage
vs RF Input Power and Frequency
2.4
fIF = 240MHz
2.0
Supply Current vs Supply Voltage
and Temperature
20
18
TA = 85°C
1.6
16
fRF = 900MHz
fRF = 1.9GHz
1.2
14
0.8
fRF = 2.5GHz
12
TA = 25°C
TA = –40°C
0.4
10
0
–80 –70 –60 –50 –40 –30 –20 –10 0 10
PIN (dBm)
5504 G01
8
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
5504 G02
Power Up Response Time
VCC = 3V
RF INPUT POWER = 0dBm
VOUT
1V/DIV
ENABLE
1V/DIV
ON
2µs/DIV
OFF
5504 G03
5504f
3
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