13
Maxim Integrated
MAX19792
500MHz to 4000MHz Dual Analog Voltage Variable
Attenuator with On-Chip 10-Bit SPI-Controlled DAC
Typical Operating Characteristics (continued)
(Typical Application Circuit, V
CC
 = 3.3V, 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
 = 1V, P
IN
 = 0dBm, f
RF
 = 1500MHz, T
C
 
= 25癈, unless otherwise noted.).
INPUT IP2 vs. V
CTRL
V
CTRL
 (V)
2.0
1.5
60
70
80
90
50
1.0
2.5
f
RF
 = 1500MHz
P
IN
 = 0dBm/TONE
T
C
 = -40癈, +25癈, +85癈
RESPONSE TIME V
CTRL
 STEP
TIME (ns)
1500
1000
500
-25
-20
-15
-10
-5
0
-30
0
2000
V
CTRL
 STEP OCCURS AT t = t
0
V
CTRL
 STEP FROM 1V TO 1.5V
V
CTRL
 STEP FROM 1V TO 2.5V
RESPONSE TIME WITH CS STEP
TIME (ns)
1500
1000
500
-25
-20
-15
-10
-5
0
-30
0
2000
CODE 500 TO 0
CODE 640 TO 0
CODE 950 TO 0
CODE 1023 TO 0
CS STEP OCCURS AT t = t
0
RESPONSE TIME WITH MODE STEP
TIME (ns)
3000
2000
1000
-25
-20
-15
-10
-5
0
-30
0
4000
MODE 1 TO 0 (CODE 500 to 0)
MODE 1 TO 0 (CODE 1023 TO 0)
MODE 0 TO 1 (CODE 0 TO 500)
MODE 0 TO 1 (CODE 0 TO 1023)
MODE STEP OCCURS AT t = t
0
INPUT P1dB vs. RF FREQUENCY
RF FREQUENCY(MHz)
2400
1800
1200
16
17
18
19
20
15
600
3000
T
C
 = +85癈
T
C
 = -40癈
T
C
 = +25癈
RESPONSE TIME V
CTRL
 STEP
TIME (ns)
750
500
250
-25
-20
-15
-10
-5
0
-30
0
1000
V
CTRL
 STEP FROM 1.5V TO 1V
V
CTRL
 STEP FROM 2.5V TO 1V
V
CTRL
 STEP OCCURS AT t = t
0
INPUT P1dB vs. RF FREQUENCY
RF FREQUENCY (MHz)
2400
1800
1200
16
17
18
19
20
15
600
3000
V
CC
 = 3.30V
V
CC
 = 3.45V
V
CC
 = 3.15V
RESPONSE TIME WITH CS STEP
TIME (ns)
3000
2000
1000
-25
-20
-15
-10
-5
0
-30
0
4000
CS STEP OCCURS AT t = t
0
CODE 0 TO 500
CODE 0 TO 640
CODE 0 TO 950
CODE 0 TO 1023
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相关代理商/技术参数
MAX19792ETX+T 功能描述:衰减器 -IC 500MHz to 3000MHz Attenuator RoHS:否 制造商:Skyworks Solutions, Inc. 最大衰减:18 dB 容差: 阻抗: 功率额定值:30 dBm 安装风格:SMD/SMT 工作温度范围:- 40 C to + 85 C
MAX19793ETX+ 功能描述:衰减器 -IC 2000MHz to 5000MHz Attenuator RoHS:否 制造商:Skyworks Solutions, Inc. 最大衰减:18 dB 容差: 阻抗: 功率额定值:30 dBm 安装风格:SMD/SMT 工作温度范围:- 40 C to + 85 C
MAX19793ETX+T 功能描述:衰减器 -IC 2000MHz to 5000MHz Attenuator RoHS:否 制造商:Skyworks Solutions, Inc. 最大衰减:18 dB 容差: 阻抗: 功率额定值:30 dBm 安装风格:SMD/SMT 工作温度范围:- 40 C to + 85 C
MAX19794ETX+ 功能描述:衰减器 -IC 10MHz to 500MHz Attenuator RoHS:否 制造商:Skyworks Solutions, Inc. 最大衰减:18 dB 容差: 阻抗: 功率额定值:30 dBm 安装风格:SMD/SMT 工作温度范围:- 40 C to + 85 C
MAX19794ETX+T 功能描述:衰减器 -IC 10MHz to 500MHz Attenuator RoHS:否 制造商:Skyworks Solutions, Inc. 最大衰减:18 dB 容差: 阻抗: 功率额定值:30 dBm 安装风格:SMD/SMT 工作温度范围:- 40 C to + 85 C
MAX1979ETM 功能描述:电压模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX1979ETM+ 功能描述:电压模式 PWM 控制器 Integrated Temp Ctlr for Peltier Modules RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX1979ETM+T 功能描述:电压模式 PWM 控制器 Integrated Temp Ctlr for Peltier Modules RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel