参数资料
型号: MAX19994AETX+T
厂商: Maxim Integrated
文件页数: 23/28页
文件大小: 0K
描述: IC MIXER DOWN CONV DUAL 36-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
RF 型: GSM,EDGE,CDMA
频率: 1.2GHz ~ 2GHz
混频器数目: 2
增益: 8.4dB
噪音数据: 9.8dB
次要属性: 降频变频器
电流 - 电源: 330mA
电源电压: 3.3V,5V
包装: 带卷 (TR)
封装/外壳: 36-WFQFN 裸露焊盘
供应商设备封装: 36-TQFN 裸露焊盘(6x6)
Dual, SiGe, High-Linearity, 1200MHz to 2000MHz
Downconversion Mixer with LO Buffer/Switch
Pin Description (continued)
PIN
9
11
13, 14
15
17
18, 28
19
23
27
29
31
32, 33
35
NAME
RFDIV
IFD_SET
IFD+, IFD-
IND_EXTD
LO_ADJ_D
N.C.
LO1
LOSEL
LO2
LO_ADJ_M
IND_EXTM
IFM-, IFM+
IFM_SET
EP
FUNCTION
Diversity Channel RF input. Internally matched to 50 I . Requires an input 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 (see the Typical Application Circuit ).
Diversity Mixer Differential IF Output +/-. Connect pullup inductors from each of these pins to V CC
(see the Typical Application Circuit ).
Diversity External Inductor Connection. Connect this pin to ground. For improved RF-to-IF and
LO-to-IF isolation, connect a low-ESR 10nH inductor from this pin to ground (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 (see the Typical Application Circuit ).
No Connection. Not internally connected.
Local Oscillator 1 Input. This input is internally matched to 50 I . Requires an input DC-blocking
capacitor.
Local Oscillator Select. Set this pin to high to select LO1. Set to low to select LO2.
Local Oscillator 2 Input. This input is internally matched to 50 I . 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 (see the Typical Application Circuit ).
Main External Inductor Connection. Connect this pin to ground. For improved RF-to-IF and LO-to-
IF isolation, connect a low-ESR 10nH inductor from this pin to ground (see the Typical Application
Circuit ).
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 (see the Typical Application Circuit ) .
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 MAX19994A is a dual-channel downconverter
designed to provide up to 8.4dB of conversion gain,
+25dBm input IP3, +14dBm 1dB input compression
point, and a noise figure of 9.8dB.
In addition to its high-linearity performance, the device
achieves a high level of component integration. The
device integrates two double-balanced mixers for two-
channel downconversion. Both the main and diversity
channels include a balun and matching circuitry to allow
50 I single-ended interfaces to the RF ports and the two
LO ports. An integrated single-pole/double-throw (SPDT)
switch provides 50ns switching time between the two LO
inputs, with 48dB of LO-to-LO isolation and -42dBm of
LO leakage at the RF port. Furthermore, the integrated
LO buffers provide a high drive level to each mixer core,
reducing the LO drive required at the device's inputs to
a range of -6dBm to +3dBm. The IF ports for both chan-
nels incorporate differential outputs for downconversion,
which is ideal for providing enhanced 2LO - 2RF perfor-
mance.
With an optimized 1450MHz to 2050MHz LO frequency
range, this mixer supports both high- and low-side LO
injection architectures for the 1200MHz to 1700MHz
and 1700MHz to 2000MHz RF bands, respectively. The
device also supports an IF range of 50MHz to 500MHz.
The external IF components set the lower frequency
range (see the Typical Operating Characteristics for
23
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MAX19994AEVKIT# 功能描述:射频开发工具 RF and RFID RF Evaluation & Development Kits & Boards - KIT EVAL FOR MAX19994A MIXER 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
MAX19995AETX+ 功能描述:上下转换器 High-Gain 1.2GHz to 2GHz 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
MAX19995AETX+T 功能描述:上下转换器 High-Gain 1.7GHz to 2.2GHz 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
MAX19995AEVKIT# 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
MAX19995ETX+ 功能描述:上下转换器 High-Gain 1.7GHz to 2.2GHz 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