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MAX2248 Datasheet(Scheda tecnica) 3 Page - Maxim Integrated Products

Numero della parte MAX2248
Dettagli  1.9GHz Power Amplifier
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Produttore  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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(Using Typical Application Circuit, VCC = +2.7V to +5V, PRFIN = 0dBm to +4dBm, fRFIN = 1880MHz to 1930MHz, SHDN = VCC,
TA = -40°C to +85°C, Typical values measured at VCC = +3.2V, PRFIN = +3dBm, fRFIN = 1.9GHz, TA = +25°C, unless otherwise noted.
(Note 1))
Note 1: Limits are 100% production tested at TA = +25°C. Limits over the entire operating temperature range are guaranteed by
design and characterization but are not production tested.
Note 2: Supply current is measured with RF power applied to the input.
Note 3: Measured with an output-matching network to minimize the 2nd and 3rd harmonics (see Applications Information section).
Note 4: Output measured in 100kHz RBW. Test signal modulation shall comply with GFSK, BT = 0.5, 1-bit/symbol, 1Mbps, frequency
deviation = 175kHz.
Note 5: The total turn-on time for the PA output power to settle within 1dB of the final value.
Note 6: The total turn-off time for the PA output power to drop to -10dBm.
Note 7: After removal of the load mismatch, the PA returns to operation under normal conditions.
Note 8: Guaranteed by design and characterization.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Shutdown Supply Current
SHDN = Low, D0 = Low, D1 = Low, no input signal
0.5
20
μA
Input Logic Voltage High
2
V
Input Logic Voltage Low
0.8
V
Input Current
GND ≤ VIN ≤ VBIAS
-2
2
μA
AC ELECTRICAL CHARACTERISTICS
Frequency Range
1880
1930
MHz
Input Power Range
0
4
dBm
Output Power
D1 = Low, D0 = Low
4
dBm
D1 = Low, D0 = High
12
D1 = High, D0 = Low
18
VCC = 3.2V, PRFIN = 3dBm, fRFIN = 1.9GHz,
D1 = High, D0 = High, TA = +25°C (Note 8)
18
20
D1 = High, D0 = High, TA = -40°C to 85°C (Note 1)
15.8
20
27
Power Control Steps
D1 = Low, D0 = Low to D1 = Low, D0 = High
7
dB
D1 = Low, D0 = High to D1 = High, D0 = Low
6
D1 = High, D0 = Low to D1 = High, D0 = High
2
Harmonic Output (Note 3)
-15
dBm
Input VSWR
RS = 50Ω
1.5:1
In-Band Spurious Noise
(Note 4)
Frequency offset = ±550kHz
-22
dBc
Frequency offset = ±1.5MHz
-40
dBm
Frequency offset = ±2.5MHz
-60
Power Ramp Turn-On Time
(Notes 5, 8)
SHDN = 0 to 1, D0 = D1 = logic-low-to-high transition
2
μs
Power Ramp Turn-Off Time
(Notes 6, 8)
SHDN = 1 to 0, D0 = D1 = logic-high-to-low transition
2
μs
Nonharmonic Spurious Output
(Note 8)
All power levels set by D0, D1; load VSWR ≤ 3:1;
PRFIN = +4dBm
-30
dBm
Input to Output Isolation in
Shutdown
45
dB
Maximum Output VSWR
Without Damage (Note 7)
All power levels set by D0, D1; any load phase
angle, any duration
6:1
Electrical Characteristics (continued)
www.maximintegrated.com
Maxim Integrated │ 3
MAX2248
1.9GHz Power Amplifier




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