收藏本站
SiGe High-Linearity, 2000MHz to 3000MHz
Downconversion Mixer with LO Buffer
Table 1. Component Values
DESIGNATION
C1
C2, C6, C8, C11
C3, C9
C10
C13, C14
C15
L1, L2
L3
R1
R2
R3
T1
U1
QTY
1
4
0
1
2
1
2
1
1
1
1
1
1
DESCRIPTION
8.2pF microwave capacitor (0402)
0.01μF microwave capacitors (0402)
Not installed, capacitors
2pF microwave capacitor (0402)
1000pF microwave capacitors (0402)
82pF microwave capacitor (0402)
120nH wire-wound high-Q inductors* (0805)
(see the Typical Operating Characteristics )
4.7nH wire-wound high-Q inductor (0603)
698 Ω ±1% resistor (0402). Use for V CC = +5.0V applications.
1.1k Ω ±1% resistor (0402). Use for V CC = +3.3V applications.
604 Ω ±1% resistor (0402). Use for V CC = +5.0V applications.
845 Ω ±1% resistor (0402). Use for V CC = +3.3V applications.
0 Ω resistor (1206)
4:1 IF balun TC4-1W-17*
MAX19996 IC (20 TQFN)
COMPONENT SUPPLIER
Murata Electronics North America, Inc.
Murata Electronics North America, Inc.
—
Murata Electronics North America, Inc.
Murata Electronics North America, Inc.
Murata Electronics North America, Inc.
Coilcraft, Inc.
Coilcraft, Inc.
Digi-Key Corp.
Digi-Key Corp.
Digi-Key Corp.
Mini-Circuits
Maxim Integrated Products, Inc.
*Use 470nH inductors and TC4-1W-7A 4:1 balun for IF frequencies below 200MHz.
LEXT Inductor
Short LEXT to ground using a 0 Ω resistor. For applica-
tions requiring improved RF-to-IF and LO-to-IF isolation,
a 4.7nH low-ESR inductor can be connected from LEXT
to GND. However, the load impedance presented to the
mixer must be such that any capacitances from IF- and
IF+ to ground do not exceed several picofarads to
ensure stable operating conditions. Since approximate-
ly 120mA flows through LEXT, it is important to use a
low-DCR wire-wound inductor.
Layout Considerations
A properly designed PCB is an essential part of any
RF/microwave circuit. Keep RF signal lines as short as
possible to reduce losses, radiation, and inductance.
The load impedance presented to the mixer must be
such that any capacitance from both IF- and IF+ to
ground does not exceed several picofarads. For the best
performance, route the ground pin traces directly to the
exposed pad under the package. The PCB exposed pad
MUST be connected to the ground plane of the PCB. It is
suggested that multiple vias be used to connect this pad
to the lower-level ground planes. This method provides a
good RF/thermal-conduction path for the device. Solder
the exposed pad on the bottom of the device package to
the PCB. The MAX19996 evaluation kit can be used as a
reference for board layout. Gerber files are available
upon request at www.maxim-ic.com .
Power-Supply Bypassing
Proper voltage-supply bypassing is essential for high-
frequency circuit stability. Bypass each V CC pin with
the capacitors shown in the Typical Application Circuit
and see Table 1.
Exposed Pad RF/Thermal Considerations
The exposed pad (EP) of the MAX19996’s 20-pin thin
QFN package provides a low thermal-resistance path
to the die. It is important that the PCB on which the
MAX19996 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.
______________________________________________________________________________________
17
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MAX19997AETX+T IC DOWNCONVERTER 2CH 36TQFN
MAX19998ETP+ IC MIXER DOWNCONVERSION 20TQFN
MAX19999ETX+T IC DOWNCONVERTER 2CH 36TQFN
MAX2009ETI+T IC RF PREDISTORT ADJ 28-TQFN
MAX2010ETI+T IC RF PREDISTORT ADJ 28-TQFN
MAX2014ETA+T IC DETECT/CNTRL LOG 8-TDFN
MAX2015EUA+T IC DETECT/CNTRL LOG 8-UMAX
MAX2015EVKIT EVAL KIT FOR MAX2015
相关代理商/技术参数
MAX19997 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
MAX19997AETX+ 功能描述:上下转换器 High-Gain 1.8GHz to 2.9GHz 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
MAX19997AETX+T 功能描述:上下转换器 High-Gain 1.8GHz to 2.9GHz 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
MAX19998AETP+ 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
MAX19998AETP+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
MAX19998AEVKIT# 制造商:Maxim Integrated Products 功能描述:SIGE HIGH-LINEARITY 2300MHZ TO 4000MHZ DOWNCONVERSION MIXER - Boxed Product (Development Kits)
MAX19998ETP+ 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
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