參數(shù)資料
型號(hào)： MAX2245EBL-T
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 衰減器
英文描述： 2.5GHz, 22dBm/20dBm Power Amplifiers with Analog Closed-Loop Power Control
中文描述： 2400 MHz - 2500 MHz RF/MICROWAVE NARROW BAND LOW POWER AMPLIFIER
封裝： 3 X 3 MM, UCSP-9
文件頁(yè)數(shù)： 3/14頁(yè)
文件大小： 312K
代理商： MAX2245EBL-T
M
2.5GHz, 22dBm/20dBm Power Amplifiers with
Analog Closed-Loop Power Control
_______________________________________________________________________________________
3
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, V
CC
= 3V, P
RFIN
= 0 to 4dBm, f
RFIN
= 2.45GHz, 50
system, V
SHDN
≥
2V, T
A
= +25
°
C, unless otherwise
noted. Typical values are at V
CC
= 3V, P
RFIN
= 2dBm, f
RFIN
= 2.45GHz, T
A
= +25
°
C, unless otherwise noted.)
Note 1:
Limits are 100% production tested at T
A
= +25
°
C. Limits over the entire operating temperature range are guaranteed by
design and characterization, but are not production tested.
Note 2:
Guaranteed by design and characterization.
Note 3:
Assumes the output is optimally matched to cover the 2.4GHz to 2.5GHz band.
Note 4:
Valid for the case in which the output stage is matched with a two-section transmission line, lowpass matching network to
minimize the 2nd and 3rd harmonics, as shown in the
Typical Application Circuit.
Note 5:
Output measured in a 100kHz RBW. Power on/off duty cycle = 50%. Test signal: GFSK, BT = 0.5, 1 bit/symbol, 1Mbps,
frequency deviation = 175kHz.
Note 6:
The total turn-on and settling time required for the PA output power to settle to within ±1dB of the final value.
Note 7:
The total turn-off time for the PA output power to drop to -10dBm.
PARAMETER
CONDITIONS
MIN
2.4
0
0
20.5
20
0
20.5
20
-4.5
19
17
TYP
MAX
2.5
4
7
23.5
24
7
23.5
24
5.5
21
21
-1
-13
-30
UNITS
GHz
dBm
Frequency Range (Note 3)
Input Power
MAX2244, V
PC
= 0.5V
T
A
= +25
°
C
T
A
= +25
°
C
T
A
= -40
°
C to +85
°
C
T
A
= +25
°
C
T
A
= +25
°
C
T
A
= -40
°
C to +85
°
C
T
A
= +25
°
C
T
A
= +25
°
C
T
A
= -40
°
C to +85
°
C
MAX2244/MAX2245
MAX2246
4
22.0
MAX2244, V
PC
= 2V
MAX2245, V
PC
= 0.9V
4
22.0
MAX2245, V
PC
= 2.2V
MAX2246, V
PC
= 0.5V
0.5
20
Output Power (Note 2)
MAX2246, V
PC
= 2V
dBm
-7
-16
Harmonic Output (Notes 2, 4)
P
RFOUT
at any level
dBm
Shutdown Mode Output (Note 2)
V
SHDN
≤
0.6V, P
RFIN
= 4dBm
Frequency offset =
±
500kHz
Frequency offset =
±
1.5MHz
Frequency offset = ±2.5MHz
dBm
dBc
-20
-20
-40
In-Band Spurious (Notes 2, 3, 5)
dBm
Nonharmonic Spurious Output
(Note 2)
All power levels, load VSWR
≤
3:1
-30
dBm
MAX2244/MAX2246, V
PC
steps from 0 to 2V
MAX2245/MAX2246, V
PC
steps from 0 to 2.5V
MAX2244, V
PC
steps from 2V to 0
MAX2245, V
PC
steps from 2.5V to 0
R
S
= 50
, over full P
RFIN
range
4
4
Power Ramp Turn-On Time
(Notes 2, 6)
μs
1.8
1.8
1.5:1
Power Ramp Turn-Off Time
(Notes 2, 7)
μs
Input VSWR (Note 2)
2:1
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