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| 型号： | MAX2066EVKIT |
| 厂商： | Maxim Integrated |
| 文件页数： | 19/23页 |
| 文件大小： | 0K |
| 描述： | KIT EVALUATION FOR MAX2066 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 放大器 |
| 频率： | 50MHz ~ 1GHz |
| 适用于相关产品： | MAX2066 |
| 已供物品： | 板 |
50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
As an example, assume that the AGC application
requires a static attenuation adjustment to trim out gain
inconsistencies within a receiver lineup. The same AGC
Table 4. Preprogrammed Attenuation
State Settings
circuit can also be called upon to dynamically attenuate
an unwanted blocker signal that could de-sense the
receiver and lead to an ADC overdrive condition. In this
example, the MAX2066 would be preprogrammed
(through the SPI bus) with two customized attenuation
states—one to address the static gain trim adjustment,
the second to counter the unwanted blocker condition.
STATE_A
0
1
0
1
STATE_B
0
0
1
1
DIGITAL ATTENUATOR
Preprogrammed attenuation state 1
Preprogrammed attenuation state 2
Preprogrammed attenuation state 3
Preprogrammed attenuation state 4
Toggling just the STATE_A control bit enables the user
to switch quickly between the static and dynamic atten-
uation settings with only one I/O pin.
If desired, the user can also program two additional
attenuation states by using the STATE_B control bit as
a second I/O pin. These two additional attenuation set-
tings are useful for software-defined radio applications
where multiple static gain settings may be needed to
account for different frequencies of operation, or where
multiple dynamic attenuation settings are needed to
account for different blocker levels (as defined by multi-
ple wireless standards).
External Bias
Bias currents for the driver amplifier are set and opti-
mized through external resistors. Resistors R1 and R1A
connected to RSET (pin 18) set the bias current for the
amplifier. The external biasing resistor values can be
Layout Considerations
The pin configuration of the MAX2066 has been opti-
mized to facilitate a very compact physical layout of the
device and its associated discrete components.
The exposed paddle (EP) of the MAX2066’s 40-pin thin
QFN-EP package provides a low thermal-resistance
path to the die. It is important that the PCB on which the
MAX2066 is mounted be designed to conduct heat
from the EP. In addition, provide the EP with a low-
inductance path to electrical ground. The EP must be
soldered to a ground plane on the PCB, either directly
or through an array of plated via holes.
Table 5. MAX2065/MAX2066 Pin
Comparison
increased for reduced current operation at the expense
of performance. See Tables 6 and 7 for details.
+5V and +3.3V Supply Voltage
The MAX2066 features an optional +3.3V supply voltage
operation with slightly reduced linearity performance.
Pin-Compatibility Considerations
The MAX2066 is a simplified version of the MAX2065
analog/digital VGA. The MAX2066 does not contain an
analog attenuator, on-chip DAC, or internal reference.
PIN
2
3
32
37
38
39
40
MAX2065
VREF_SELECT
VDAC_EN
ATTEN1_OUT
ATTEN1_IN
VCC_ANALOG
ANALOG_VCTRL
VREF_IN
MAX2066
GND
GND
GND
GND
GND
GND
GND
The associated input/output pins are internally connected
to ground (Table 5). Ground the unused input/output pins
to optimize isolation. (See the Typical Application Circuit.)
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相关代理商/技术参数 |
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| MAX2066EVKIT# | 功能描述:射频放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
| MAX2067ETL+ | 功能描述:射频放大器 Dl 50-1000MHz Hi-Lin Analog/Digital VGA RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
| MAX2067ETL+T | 功能描述:射频放大器 Dl 50-1000MHz Hi-Lin Analog/Digital VGA RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
| MAX2067EVKIT | 功能描述:射频放大器 RF and RFID RF Evaluation & Development Kits & Boards - KIT EVALUATION FOR MAX2067 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
| MAX2067EVKIT# | 功能描述:射频放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
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