MAX2745 데이터 시트보기 (PDF) - Maxim Integrated
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MAX2745 Datasheet PDF : 9 Pages
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Single-Chip Global Positioning System
Receiver Front-End
ABSOLUTE MAXIMUM RATINGS
VDD to GND ...........................................................-0.3V to +3.7V
Other Pins to GND......................................-0.3V to (VDD + 0.3V)
RF LNA Input Power .......................................................+10dBm
Continuous Power Dissipation (TA = +70°C)
48-Pin TQFP-EP (derate 12.5mW/°C above +70°C) ............1W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Soldering Temperature (10s) ...........................................+300°C
CAUTION! ESD SENSITIVE DEVICE
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(MAX2745 EV kit, VDD = +2.4V to +3.6V, SHDN = GND, TA = -40°C to +85°C. Typical values are at VDD = +3.0V and TA = +25°C,
unless otherwise noted.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage
2.4
3.6
V
Supply Current
VDD = +3.0V, TA = +25°C (Note 1)
Shutdown mode
20.5
27
mA
11
µA
Optional External LNA Supply
Current
VDD = +3.0V
10
mA
Logic-Input High Voltage
2.0
V
Logic-Input Low Voltage
0.5
V
Logic-Input Bias Current
-10
+10
µA
AC ELECTRICAL CHARACTERISTICS
(MAX2745 EV kit, VDD = +2.4V to +3.6V, SHDN = GND, TA = -40°C to +85°C. Typical values are at VDD = +3.0V and TA = +25°C,
unless otherwise noted.)
PARAMETER
GENERAL PERFORMANCE
Maximum Conversion Gain
Input Frequency
Noise Figure
Return Loss (S11)
LNA/Mixer Input IP3
Output IF Frequency
OUTPUT STAGE
Output Rise/Fall Time
Output-Voltage-Level Low
Output-Voltage-Level High
CONDITIONS
MIN TYP MAX UNITS
(Notes 2, 3)
Measured at quantizer output
f1 = 5.09MHz and f2 = 7.09MHz above carrier frequency
105
120
1575.42
3.5
-14
-25
4.092
dB
MHz
dB
dB
dBm
MHz
Differential (VOUT+, VOUT-), CL < 20pF
Single ended (DOUT), CL<20pF
Differential
Single ended
Differential
Single ended
16
ns
6
VDD - 0.9
V
0
VDD
V
2 _______________________________________________________________________________________
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