參數(shù)資料
型號： MAX2057ETX-T
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 衰減器
英文描述： 1700MHz to 2500MHz Variable-Gain Amplifier with Analog Gain Control
中文描述： 1700 MHz - 2500 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER
封裝： 6 X 6 MM, TQFN-36
文件頁數(shù)： 3/12頁
文件大?。?/td> 826K
代理商： MAX2057ETX-T
M
1700MHz to 2500MHz Variable-Gain
Amplifier with Analog Gain Control
_______________________________________________________________________________________
3
AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit with one attenuator connected, V
CC
= +4.75V to +5.25V, T
A
= -40°C to +85°C, unless otherwise noted.
Typical values are at V
CC
= +5.0V, R1 = 1.2k
, R2 = 2k
, P
OUT
= +5dBm, f
IN
= 2100MHz, V
CNTL
= 1V, 50
system impedance,
second attenuator is not connected, T
A
= +25°C, unless otherwise noted.) (Note 3)
Note 1:
Total supply current reduces as R
1
and R
2
are increased.
Note 2:
Operating outside this range for extended periods may affect device reliability. Limit pin input current to 40mA when V
CC
is not present.
Note 3:
All limits include external component losses, unless otherwise noted.
Note 4:
Noise figure increases by approximately 1dB for every 1dB of gain reduction.
Note 5:
f
1
= 2100MHz, f
2
= 2101MHz, +5dBm/tone at OUT.
Note 6:
Switching time is measured from 50% of the control signal to when the RF output settles to ±1dB.
PARAMETER
CONDITIONS
MIN
TYP
-0.83
-0.6
-65
-83
20.7
42.4
-10
-15.2
MAX
UNITS
T
A
= +25°C to +85°C
T
A
= +25°C to -40°C
From maximum gain to 15dB attenuation, P
OUT
= +5dBm
From maximum gain to 15dB attenuation, P
OUT
= +5dBm
f
RF
= 1.7GHz to 2.2GHz,
V
CNTL
= 1V to 4.5V
V
CNTL
= 1.8V to 3.5V
Maximum slope vs. gain-control voltage
Output 3rd-Order Intercept Point
Variation Over Temperature
dB
2nd Harmonic
3rd Harmonic
dBc
dBc
One attenuator
Two attenuators
17
34
RF Gain-Control Range
dB
RF Gain-Control Slope
Maximum RF Gain-Control Slope
dB/V
dB/V
Gain Flatness Over
100MHz Bandwidth
Peak-to-peak for all settings
0.5
dB
Attenuator Switching Time
Attenuator Insertion Loss
Input Return Loss
Output Return Loss
Group Delay
15dB attenuation change (Note 6)
Second attenuator (IN_A, OUT_A)
Entire band, all gain settings
Entire band, all gain settings
Input/output 50
lines de-embedded
500
2.2
18
15
300
ns
dB
dB
dB
ps
Group Delay Flatness Over
100MHz Bandwidth
Peak to peak
20
ps
Group Delay Change vs. Gain
Control
V
CNTL
= 1V to 4V
-70
ps
Insertion Phase Change vs. Gain
Control
V
CNTL
= 1V to 4V
50
degrees
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