MAX2740
Integrated GPS Receiver and Synthesizer
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +3.3V, T
A
= -40°C to +85°C. Typical values are at V
CC
= +3.0, T
A
= +25°C.)
AC ELECTRICAL CHARACTERISTICS
(MAX2740 EV kit, V
CC
= +3.0V, 50Ω system impedance, F
RF
= 1575.42MHz, F
IF1
= 135.42MHz, F
IF2
= 15.42MHz, F
REF
= 20MHz at
600mVpp, T
A
= +25°C, unless otherwise noted.)
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.
V
CC
Pins to GND ...................................................-0.3V to +4.3V
RF LNA Input Power .......................................................+10dBm
LO Input Power...............................................................+10dBm
GC Input Voltage ..........................................-0.3 to (V
CC
+ 0.3V)
Continuous Power Dissipation (T
A
= +85°C)
48-Pin TQFP-EP Package ...........................................800mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER CONDITIONS MIN TYP MAX UNITS
Total Supply Current 55.1 84.3 mA
AGC Voltage Range
0.5 to
2.5
V
AGC Current -50 +25 µA
PARAMETER CONDITIONS MIN TYP MAX UNITS
LNA
LNA Gain (Note 1) 13.1 16.0 17.2 dB
LNA Gain Variation Over
Temperature
Relative to ambient (Note 1) -1.3 ±0.5 +1.0 dB
LNA Input Third-Order Intercept
Point
(Note 2) -9.4 dBm
LNA Noise Figure 2.6 dB
RF MIXER (Z
l
= 100Ω differential)
RF Mixer Conversion Gain (Note 3) 22.6 dB
RF Mixer Input IP3 -22.4 dBm
RF Mixer Noise Figure (SSB) 11.0 dB
IF MIXER (Z
s
= 100Ω differential, Z
l
= 4kΩ differential)
IF Mixer Conversion Gain 36.3 dB
VARIABLE-GAIN AMPLIFIER (VGA) (Z
l
= 4kΩ differential)
VGA Voltage Gain at Maximum
Gain Setting
GC = 2.5V 15.1 dB
VGA Voltage Gain at Minimum
Gain Setting
GC = 0.5V -54.7 dB
FIXED GAIN AMPLIFIER (FGA)
FGA Voltage Gain Z
l
= 4kΩ differential 39.8 dB
FGA 1dB Compression (Output)
2.05 Vp-p
(17 Seiten)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern