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| 型号： | MAX19996AEVKIT# |
| 厂商： | Maxim Integrated |
| 文件页数： | 30/35页 |
| 文件大小： | 0K |
| 描述： | EVALUATION KIT FOR MAX19996A |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 混频器，降频 |
| 频率： | 1.7GHz ~ 2.2GHz |
| 适用于相关产品： | MAX19996A |
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SiGe, High-Linearity, 2000MHz to 3900MHz
Downconversion Mixer with LO Buffer
Pin Description
PIN
1, 6, 8, 14
2
3, 4, 5, 10,
12, 13, 17
7
9, 15
11
16
18, 19
20
—
NAME
V CC
RF
GND
LOBIAS
N.C.
LO
LEXT
IF-, IF+
IFBIAS
EP
FUNCTION
Power Supply. Bypass to GND with 0.01μF capacitors as close as possible to the pin.
Single-Ended 50 Ω RF Input. Internally matched and DC shorted to GND through a balun. Requires an
input DC-blocking capacitor.
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 Ω 1% (230mA bias
condition) from LOBIAS to ground.
Not internally connected. Pins can be grounded.
Local Oscillator Input. This input is internally matched to 50 Ω . Requires an input DC-blocking capacitor.
External Inductor Connection. Connect an inductor from this pin to ground to increase the RF-to-IF and
LO-to-IF isolation (see the Typical Operating Characteristics for typical performance vs. inductor value).
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 Ω 1% (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.
Detailed Description
When used as a high-side LO injection mixer in the
2300MHz to 2900MHz RF band, the MAX19996A pro-
vides 8.7dB of conversion gain and +24.5dBm of IIP3
with a typical noise figure of 9.8dB. The integrated
baluns and matching circuitry allow for 50 Ω single-
ended interfaces to the RF and the LO ports. The inte-
grated LO buffer provides a high drive level to the
mixer core, reducing the LO drive required at the
MAX19996A’s input to a -3dBm to +3dBm range. The IF
port incorporates a differential output, which is ideal for
providing enhanced 2LO-2RF performance.
Specifications are guaranteed over broad frequency
ranges to allow for use in WCS, LTE, WiMAX, and
MMDS base stations. The MAX19996A is specified to
operate over an RF input range of 2000MHz to
3900MHz, an LO range of 2100MHz to 4000MHz, and
an IF range of 50MHz to 500MHz. The external IF com-
ponents set the lower frequency range (see the Typical
Operating Characteristics for details). Operation
beyond these ranges is possible (see the Typical
Operating Characteristics for additional information).
RF Input and Balun
The MAX19996A RF input provides a 50 Ω match when
combined with a series DC-blocking capacitor. This
DC-blocking capacitor is required as the input is inter-
nally DC shorted to ground through the on-chip balun.
When using an 8.2pF DC-blocking capacitor, the RF
port input return loss is typically 14dB over the RF fre-
quency range of 2300MHz to 2900MHz. A return loss of
15dB over the 3000MHz to 3900MHz range can be
achieved by changing the DC-blocking capacitor to
1.5pF.
LO Inputs, Buffer, and Balun
With a broadband LO drive circuit spanning 2100MHz
to 4000MHz, the MAX19996A can be used in either
low-side or high-side LO injection architectures for vir-
tually all 2.5GHz and 3.5GHz applications. The LO
input is internally matched to 50 Ω , requiring only a 2pF
DC-blocking capacitor. A two-stage internal LO buffer
allows for a -3dBm to +3dBm LO input power range.
The on-chip low-loss balun, along with an LO buffer,
drives the double-balanced mixer. All interfacing and
matching components from the LO inputs to the IF out-
puts are integrated on-chip.
30
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相关PDF资料 |
PDF描述 |
|---|---|
| MAX19996ETP+T | IC MIXER DOWNCONV 20-TQFN-EP |
| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX19996AEVKIT# | 功能描述:射频开发工具 RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| MAX19996ETP+ | 功能描述:上下转换器 High-Gain 2GHz to 3.9GHz 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 |
| MAX19996ETP+T | 功能描述:上下转换器 High-Gain 2GHz to 3.9GHz 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 |
| 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 |
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