
M
900MHz Image-Rejec t Rec eivers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +4.8V, no RF signals applied, LNAGAIN = unconnected, V
VCOON
= 2.4V, V
RXON
= V
MOD
= V
DIV1
= 0.45V, PREGND
= GND, T
A
= T
MIN
to T
MAX
. Typical values are at T
A
= +25°C, V
CC
= +3.3V, 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.
Note 1:
Calculated by measuring the combined oscillator and prescaler supply current and subtracting the oscillator supply current.
Note 2:
Calculated by measuring the combined oscillator and LO buffer supply current and subtracting the oscillator supply current.
Note 3:
Calculated by measuring the combined receive and oscillator supply current and subtracting the oscillator supply current.
With LNAGAIN = GND, the supply current drops by 4.5mA.
V
CC
to GND...........................................................-0.3V to +5.5V
Voltage on LNAGAIN, RXON, VCOON,
DIV1, MOD ...............................................-0.3V to (V
CC
+ 0.3V)
RXIN Input Power..............................................................10dBm
TANK,
TANK
Input Power...................................................2dBm
Continuous Power Dissipation (T
A
= +70°C)
SSOP (derate 9.50mW/°C above +70°C) ......................762mW
Operating Temperature Range
MAX244_EAI.....................................................-40°C to +85°C
J unction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10sec) .............................+300°C
PARAMETER
MIN
2.7
TYP
MAX
4.8
14
UNITS
V
mA
Receive Supply Current
23
0.5
36
mA
Prescaler Supply Current
(buffer mode)
5.4
8.5
mA
Oscillator Supply Current
Supply-Voltage Range
9.5
Prescaler Supply Current
(divide-by-64/65 mode)
4.2
6
mA
CONDITIONS
V
RXON
= 2.4V, PREGND = unconnected (Note 3)
V
DIV1
= 2.4V (Note 2)
PREGND = unconnected
(Note 1)
Digital Input Voltage Low
Digital Input Current
0.45
±10
V
RXON, DIV1, VCOON, MOD
Voltage on any one digital input = V
CC
or GND
VCOON = RXON = MOD =
DIV1 = GND
±1
μA
Digital Input Voltage High
V
2.4
RXON, DIV1, VCOON, MOD
Shutdown Supply Current
10
μA
T
A
= +25°C
T
A
= T
MIN
to T
MAX