MAX2426(1999) Ver la hoja de datos (PDF) - Maxim Integrated
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MAX2426 Datasheet PDF : 14 Pages
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900MHz Image-Reject Receiver
with Transmit Mixer
ABSOLUTE MAXIMUM RATINGS
VCC to GND ...........................................................-0.3V to +5.5V
TXIN, TXIN Differential Voltage ..............................................+2V
Voltage on TXOUT......................................-0.3V to (VCC + 1.0V)
Voltage on LNAGAIN, TXON, RXON, VCOON,
DIV1, MOD, TXIN, TXIN............................-0.3V to (VCC + 0.3V)
RXIN Input Power..............................................................10dBm
TANK, TANK Input Power ...................................................2dBm
Continuous Power Dissipation (TA = +70°C)
SSOP (derate 9.50mW/°C above +70°C) ......................762mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10sec) .............................+300°C
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
(VCC = +2.7V to +4.8V, no RF signals applied, LNAGAIN = Unconnected, VTXIN = VTXIN = 2.3V, VVCOON = 2.4V, VRXON = VTXON =
VMOD = VDIV1 = 0.45V, PREGND = GND, TA = -40°C to +85°C. Typicals are at TA = +25°C, VCC = 3.3V, unless otherwise noted.)
PARAMETER
Supply-Voltage Range
Oscillator Supply Current
CONDITIONS
PREGND = unconnected
MIN
TYP MAX UNITS
2.7
4.8
V
9.5
14
mA
Prescaler Supply Current
(÷ 64/65 mode) (Note 1)
4.2
6
mA
Prescaler Supply Current
(buffer mode) (Note 2)
VDIV1 = 2.4V
5.4
8.5
mA
Receive Supply Current (Note 3)
Transmitter Supply Current (Note 4)
VRXON = 2.4V, PREGND = unconnected
VRXON = 0.45V, VTXON = 2.4V,
PREGND = unconnected
23
36
mA
20
32
mA
Shutdown Supply Current
Digital Input Voltage High
VCOON = RXON = TXON TA = +25°C
= MOD = DIV1 = GND TA = -40°C to +85°C
RXON, TXON, DIV1, VCOON, MOD
0.5
µA
10
2.4
V
Digital Input Voltage Low
RXON, TXON, DIV1, VCOON, MOD
0.45
V
Digital Input Current
Voltage on any one digital input = VCC or GND
±1
±10
µA
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.
Note 4: Calculated by measuring the combined transmit and oscillator supply current and subtracting the oscillator supply current.
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