參數(shù)資料
型號(hào)： MAX19792ETX+
廠(chǎng)商： Maxim Integrated
文件頁(yè)數(shù)： 19/23頁(yè)
文件大?。?/td> 4796K
描述： ATTENUATR 46DB 50OHM 4GHZ 36TQFN
標(biāo)準(zhǔn)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(pán)
  19
Maxim Integrated
MAX19792
500MHz to 4000MHz Dual Analog Voltage Variable
Attenuator with On-Chip 10-Bit SPI-Controlled DAC
Table 4. Attenuator-Mode Control Logic State
Table 5. Step-Mode Logic State (MODE = 1)
*Continued UP or DWN stepping results in saturation (no code wrapping).
Table 6. REF_SEL Logic State
SPI Interface Programming
Figure 2. SPI Timing Diagram
Figure 3. UP/DWN Control Diagram (MODE = 1)
MODE PIN
ATTENUATOR
0
SPI-mode control (the DAC code is located in register 0).
1
Step-mode control using the UP and DWN pins (the step-up code is located in register 1 and the step-down
code is located in register 2).
UP
DWN
ATTENUATOR
Logic 0
Logic 0
Reset the DAC for the minimum attenuation state (DAC code = 0000000000).
Logic 0 pulse
Logic 1
Increase the DAC code* by the amount located in register 1.
UP is pulsed from high to low to high (see Figure 3).
Logic 1
Logic 0 pulse
Decrease the DAC code* by amount located in register 2.
DWN is pulsed from high to low to high (see Figure 3).
REF_SEL
DAC REFERENCE
0
Uses an on-chip DAC reference.
1
User provides off-chip DAC reference voltage on REF_IN pin.
R/W   A1   A0
D[9:0] TO REGISTER 0, 1, 2, 3
CS
CLK
DIN
D[9:0] FROM REGISTER 0, 1, 2, 3
DOUT
t
CS
HIGH-
IMPEDANCE
HIGH-
IMPEDANCE
t
CW
t
ES
t
EW
t
CH
t
EWS
UP
1
1
0
0
DWN
NO DAC
CODE CHANGE
DAC CODE
INCREASED
BY UP STEP
DAC CODE
DECREASED
BY DWN STEP
DAC CODE
RESET TO
ALL 0's
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參數(shù)描述
MAX19792ETX+ 功能描述:衰減器 -IC 500MHz to 3000MHz 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(fēng)格:SMD/SMT 工作溫度范圍:- 40 C to + 85 C
MAX19792ETX+T 功能描述:衰減器 -IC 500MHz to 3000MHz 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(fēng)格:SMD/SMT 工作溫度范圍:- 40 C to + 85 C
MAX19793ETX+ 功能描述:衰減器 -IC 2000MHz to 5000MHz 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(fēng)格:SMD/SMT 工作溫度范圍:- 40 C to + 85 C
MAX19793ETX+T 功能描述:衰減器 -IC 2000MHz to 5000MHz 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(fēng)格:SMD/SMT 工作溫度范圍:- 40 C to + 85 C
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(fēng)格:SMD/SMT 工作溫度范圍:- 40 C to + 85 C
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