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SiGe, High-Linearity, 2300MHz to 4000MHz
Downconversion Mixer with LO Buffer
Pin Configuration/Functional Diagram
TOP VIEW
V CC
1
20
19
18
17
16
15
GND
RF
GND
GND
2
3
4
MAX19998
14
13
12
V CC
GND
GND
EP
GND
5
11
LO
6
7
8
9
10
Pin Description
PIN
1, 6, 8, 14
2
3, 9, 13, 15
4, 5, 10, 12,
17
7
11
16
18, 19
20
—
NAME
V CC
RF
GND
GND
LOBIAS
LO
LEXT
IF-, IF+
IFBIAS
EP
FUNCTION
Power Supply. Bypass to GND with 0.01 F F capacitors as close as possible to the pin.
Single-Ended 50 I RF Input. Internally matched and DC shorted to GND through a balun. Provide an
input DC-blocking capacitor if required.
Ground. Not internally connected. Pins can be grounded.
Ground. Internally connected to the exposed pad. Connect all ground pins and the exposed pad
(EP) together.
LO Amplifier Bias Control. Output bias resistor for the LO buffer. Connect a 604 I (5V, 230mA bias
condition) from LOBIAS to ground.
Local Oscillator Input. This input is internally matched to 50 I . Requires an input DC-blocking capacitor.
External Inductor Connection. Connect a low-ESR 4.7nH inductor from this pin to ground to increase
the RF-to-IF and LO-to-IF isolation. Connect this pin directly to ground to reduce the component
count at the expense of reduced RF-to-IF and LO-to-IF isolation.
Mixer Differential IF Output. Connect pullup inductors from each of these pins to V CC (see the Typical
Application Circuit ).
IF Amplifier Bias Control. IF bias resistor connection for the IF amplifier. Connect a 698 I (5V, 230mA
bias condition) from IFBIAS to GND.
Exposed Pad. Internally connected to GND. Solder this exposed pad to a PCB pad that uses multiple
ground vias to provide heat transfer out of the device into the PCB ground planes. These multiple via
grounds are also required to achieve the noted RF performance.
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相关代理商/技术参数
MAX19998ETP+T 功能描述:上下转换器 High-Gain 2.3GHz to 4.5GHz Downconv RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX19998EVKIT# 制造商:Maxim Integrated Products 功能描述:SIGE HIGH-LINEARITY 2300MHZ TO 4000MHZ DOWNCONVERSION MIXER - Boxed Product (Development Kits)
MAX19999A 功能描述:上下转换器 RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX19999ETX+ 功能描述:上下转换器 High-Gain 3GHz to 4GHz Downconv RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX19999ETX+T 功能描述:上下转换器 High-Gain 3GHz to 4GHz Downconv RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX1999EEI 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX1999EEI+ 功能描述:DC/DC 开关控制器 Quad Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX1999EEI+T 功能描述:DC/DC 开关控制器 Quad Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK