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參數資料
| 型號： | MAX19794ETX+ |
| 廠商： | Maxim Integrated |
| 文件頁數： | 5/25頁 |
| 文件大小： | 5676K |
| 描述： | ATTENUATR 46DB 50OHM 4GHZ 36TQFN |
| 標準包裝： | 50 |
| 衰減值： | 0dB ~ 46.4dB |
| 頻率范圍： | 500MHz ~ 4GHz |
| 阻抗： | 50 歐姆 |
| 封裝/外殼： | 36-WFQFN 裸露焊盤 |
5
MAX19794
10MHz to 500MHz Dual Analog Voltage Variable
Attenuator with On-Chip 10-Bit SPI-Controlled DAC
5V AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, one attenuator, V
CC
= 4.75V to 5.25V, RF ports are driven from 50I sources and loaded into 50I, input
P
RF
= 0dBm, f
RF
= 10MHz to 500MHz, V
CTRL
= 1V to 4V, V
DAC_LOGIC
= 0V, RDBK_EN (D9, REG3) = Logic 0, T
C
= -40NC to +100NC.
Typical values are for T
C
= +25NC, V
CC
= 5.0V, input P
RF
= 0dBm, f
RF
= 55MHz, V
CTRL
= 1.0V, V
DAC_LOGIC
= 0V, RDBK_EN (D9,
REG3) = Logic 0, unless otherwise noted.) (Notes 5, 7)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
Insertion Loss
IL
One attenuator
1.5
dB
Two attenuators
3.0
5.0
dB
Loss Variation Over Temperature
T
C
= -40NC to +100NC
0.29
dB
Input P
1dB
IP
1dB
21.8
dBm
Minimum Input Second-Order
Intercept Point Over Full
Attenuation Range (Note 8)
IIP2
One attenuator
f
RF1
+ f
RF2
term,
f
RF1
- f
RF2
= 1MHz
V
CTRL
= 1.0V to 4.0V
P
RF
= 0dBm/tone applied to attenuator input
48.1
dBm
Two attenuators
f
RF1
+f
RF2
term,
f
RF1
- f
RF2
= 1MHz
V
CTRL
= 1.0V to 4.0V
P
RF
= 0dBm/tone applied to attenuator input
46.5
Minimum Input Third-Order
Intercept Point
Over Full Attenuation Range
(Note 8)
IIP3
One attenuator
V
CTRL
from 1.0V to 4.0V
f
RF1
- f
RF2
= 1MHz
P
RF
= 0dBm/tone applied to attenuator input
34.4
dBm
Two attenuators
V
CTRL
from 1.0V to 4.0V
f
RF1
- f
RF2
= 1MHz
P
RF
= 0dBm/tone applied to attenuator input
32.3
Second Harmonic
63
dBc
Third Harmonic
97
dBc
Attenuation Control Range
One attenuator, V
CTRL
= 1.0V to 4.0V,
f
RF
= 55MHz
22.4
dB
Two attenuators V
CTRL
= 1.0V to 4.0V,
f
RF
= 55MHz
38.5
44.7
dB
Average Attenuation-Control
Slope
V
CTRL
= 1.5V to 3.1V
8.0
dB/V
V
CTRL
= 1.5V to 3.5V
9.4
Maximum Attenuation-Control
Slope
V
CTRL
= 1.5V to 3.5V
30
dB/V
Attenuation Flatness over
any 125MHz band
V
CTRL
= 1.0V to 3.1V,
f
RF
= 10MHz to 250MHz
0.15
dB
V
CTRL
= 1.0V to 3.1V,
f
RF
= 250MHz to 500MHz
0.2
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX19794ETX+ | 功能描述:衰減器 -IC 10MHz to 500MHz Attenuator RoHS:否 制造商:Skyworks Solutions, Inc. 最大衰減:18 dB 容差: 阻抗: 功率額定值:30 dBm 安裝風格:SMD/SMT 工作溫度范圍:- 40 C to + 85 C |
| MAX19794ETX+T | 功能描述:衰減器 -IC 10MHz to 500MHz Attenuator RoHS:否 制造商:Skyworks Solutions, Inc. 最大衰減:18 dB 容差: 阻抗: 功率額定值:30 dBm 安裝風格:SMD/SMT 工作溫度范圍:- 40 C to + 85 C |
| MAX1979ETM | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1979ETM+ | 功能描述:電壓模式 PWM 控制器 Integrated Temp Ctlr for Peltier Modules RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1979ETM+T | 功能描述:電壓模式 PWM 控制器 Integrated Temp Ctlr for Peltier Modules RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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