參數(shù)資料
型號: MAX19794ETX+
廠商: Maxim Integrated
文件頁數(shù): 11/25頁
文件大?。?/td> 5676K
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
MAX19794
10MHz to 500MHz Dual Analog Voltage Variable
Attenuator with On-Chip 10-Bit SPI-Controlled DAC
  11
Typical Operating Characteristics (continued)
(Typical Application Circuit, V
CC
 = 5.0V, configured for single attenuator, RF ports are driven from 50I sources and loaded into 50I,
V
DAC_LOGIC
 = 0V, RDBK_EN = logic 0, V
CTRL
 = 1.0V, P
IN
 = 0dBm, f
RF
 = 55MHz, T
C 
= 25NC, unless otherwise noted.).
INPUT P1dB vs. RF FREQUENCY
RF FREQUENCY (MHz)
375
250
125
20
21
22
23
24
19
0
500
+85癈
-40癈, +25癈
C10 = C11= 10nF FOR f
RF
 < 250MHz
C10 = C11= 100pF FOR f
RF
 > 300MHz
INPUT P1dB vs. RF FREQUENCY
RF FREQUENCY (MHz)
375
250
125
20
21
22
23
24
19
0
500
V
CC
 = 4.75V
V
CC
 = 5.25V
V
CC
 = 5.00V
C10 = C11 = 10nF FOR f
RF
 < 250MHZ
C10 = C11 = 100pF FOR f
RF
 > 300MHZ
RESPONSE TIME V
CTRL
 STEP
TIME (ns)
1500
1000
500
-25
-20
-15
-10
V
CTRL
 STEP OCCURS AT t = t
0
-5
0
-30
0
2000
V
CTRL
 STEP FROM 1V TO 3.15V
V
CTRL
 STEP FROM 1V TO 4V
RESPONSE TIME WITH CS STEP
TIME (ns)
1500
1000
500
-25
-20
-15
-10
-5
0
-30
0
2000
CODE 500 TO 0
CODE 700 TO 0
CODE 1023 TO 0
CS STEP OCCURS AT t = t
0
RESPONSE TIME V
CTRL
 STEP
TIME (ns)
750
500
250
-25
-20
-15
-10
V
CTRL
 STEP OCCURS AT t = t
0
-5
0
-30
0
1000
V
CTRL
 STEP FROM 3.15V TO 1V
V
CTRL
 STEP FROM 4V TO 1V
TIME (ns)
4000
3000
2000
1000
-25
-20
-15
-10
-5
0
-30
0
5000
MODE 1 TO 0 (CODE 700 TO 0)
MODE 1 TO 0 (CODE 1023 TO 0)
MODE 0 TO 1 (CODE 0 TO 700)
MODE 0 TO 1 (CODE 0 TO 1023)
MODE STEP OCCURS AT t = t
0
RESPONSE TIME WITH MODE STEP
TIME (ns)
4000
3000
2000
1000
-25
-20
-15
-10
-5
0
-30
0
5000
CS STEP OCCURS AT t = t
0
CODE 0 TO 500
RESPONSE TIME WITH CS STEP
CODE 0 TO 700
CODE 0 TO 1023
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參數(shù)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(fēng)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(fēng)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(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)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(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)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(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)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