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| 型号： | MAX19997AETX+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 29/35页 |
| 文件大小： | 0K |
| 描述： | IC DOWNCONVERTER 2CH 36TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| RF 型： | CDMA，EDGE，MMDS，UMTS，WCDMA |
| 频率： | 1.8GHz ~ 2.9GHz |
| 混频器数目： | 1 |
| 增益： | 8.7dB |
| 噪音数据： | 10.4dB |
| 次要属性： | 降频变频器 |
| 电流 - 电源： | 310mA，420mA |
| 电源电压： | 3 V ~ 3.6 V，4.75 V ~ 5.25 V |
| 包装： | 托盘 |
| 封装/外壳： | 36-WFQFN 裸露焊盘 |
| 供应商设备封装： | 36-TQFN 裸露焊盘（6x6） |
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MAX19997A
Dual, SiGe High-Linearity, 1800MHz to 2900MHz
Downconversion Mixer with LO Buffer
Pin Description
PIN
1
2, 5, 6, 8, 12, 15,
18, 23, 28, 31, 34
3, 7, 20, 22, 24–27
4, 10, 16, 21, 30,
36
9
11
13, 14
17
19
29
32, 33
35
—
NAME
RFMAIN
GND
GND
V CC
RFDIV
IFD_SET
IFD+, IFD-
LO_ADJ_D
LO
LO_ADJ_M
IFM-, IFM+
IFM_SET
EP
FUNCTION
Main Channel RF Input. Internally matched to 50 ? . Requires an input DC-blocking
capacitor.
Ground. Not internally connected. Ground these pins or leave unconnected.
Ground. Internally connected to the exposed pad. Connect all ground pins and the
exposed pad (EP) together.
Power Supply. Connect bypass capacitors as close as possible to the pin (see the
Typical Application Circuit ).
Diversity Channel RF Input. Internal matched to 50 ? . Requires a DC-blocking capacitor.
IF Diversity Amplifier Bias Control. Connect a resistor from this pin to ground to set the
bias current for the diversity IF amplifier.
Diversity Mixer Differential IF Output. Connect pullup inductors from each of these pins
to V CC (see the Typical Application Circuit ).
LO Diversity Amplifier Bias Control. Connect a resistor from this pin to ground to set the
bias current for the diversity LO amplifier.
Local Oscillator Input. This input is internally matched to 50 ? . Requires an input DC-
blocking capacitor.
LO Main Amplifier Bias Control. Connect a resistor from this pin to ground to set the bias
current for the main LO amplifier.
Main Mixer Differential IF Output. Connect pullup inductors from each of these pins to
V CC (see the Typical Application Circuit ).
IF Main Amplifier Bias Control. Connect a resistor from this pin to ground to set the bias
current for the main IF amplifier.
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 ground vias are also required to achieve the noted RF performance.
Detailed Description
The MAX19997A dual, downconversion mixer provides
high linearity and low noise figure for a multitude of
1800MHz to 2900MHz base-station applications. The
device fully supports both low-side and high-side LO
injection architectures for the 2300MHz to 2900MHz
WiMAX, LTE, WCS, and MMDS bands. WCDMA,
cdma2000, and PCS1900 applications utilizing high-
side LO injection architectures are also supported by
adding one additional tuning element (a shunt inductor)
on each RF port.
The MAX19997A operates over an LO range of
1950MHz to 3400MHz and an IF range of 50MHz to
550MHz. Integrated baluns and matching circuitry allow
50 ? single-ended interfaces to the RF and LO ports.
Maxim Integrated
The integrated LO buffer provides a high drive level to
the mixer core, reducing the LO drive required at the
MAX19997A’s input to a range of -3dBm to +3dBm. The
IF port incorporates a differential output, which is ideal
for providing enhanced 2RF - 2LO (low-side injection)
and 2LO - 2RF (high-side injection) performance.
RF Input and Balun
The MAX19997A’s two RF inputs (RFMAIN and RFDIV)
provide a 50 ? match when combined with a series DC-
blocking capacitor. This DC-blocking capacitor is
required as the input is internally DC shorted to ground
through each channel’s on-chip balun. When using a
22pF DC-blocking capacitor, the RF port input return
loss is typically 15dB over the RF frequency range of
2600MHz to 2900MHz.
29
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相关代理商/技术参数 |
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|---|---|
| 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) |
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