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| 型号： | MAX9989ETP+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC BUFFER LO 20-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | LO 缓冲器/分路器 |
| 频率： | 700MHz ~ 1.1GHz |
| RF 型： | 手机，GSM，DCS，PCS，UMTS |
| 次要属性： | 40dB 反向隔离 |
| 封装/外壳： | 20-WQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
19-2486; Rev 0; 7/02
+14dBm to +20dBm LO Buffers
with ±1dB Variation
General Description
The MAX9989 and MAX9990 LO buffers provide the high
output (+14dBm to +20dBm) necessary to drive the LO
inputs of high-linearity passive mixers, while offering 40dB
reverse isolation to prevent LO pulling. The MAX9989 is
internally matched for the cellular/GSM bands, and the
MAX9990 is matched for the DCS/PCS/UMTS bands.
The Typical Application Circuit provides a nominal
+17dBm output power with ±1dB variation over supply,
temperature, and input power. With two optional resis-
tors, the output power can be precision set from
+14dBm to +20dBm. The devices offer more than 35dB
main driver output to PLL amp output isolation. Each
device is offered in a 5mm ? 5mm 20-pin thin QFN
package with exposed paddle.
Applications
Cellular/GSM/DCS/PCS/UMTS Base Station
Features
o ±1dB Output Power Variation
o +14dBm to +20dBm Adjustable Output Power
o 40dB Reverse Isolation
o Better Than 35dB Main Driver Output to PLL Amp
Output Isolation
o Low Output Noise: -170dBc/Hz at +17dBm
o 110mA Supply Current at +17dBm
o ESD Protection
o Isolated PLL Output (+3dBm)
Ordering Information
Tx/Rx LO Drives
Coherent Receivers
PART
TEMP
RANGE
PIN-
PACKAGE
FREQUENCY
RANGE (MHz)
MAX9989 ETP -40 ° C to +85 ° C
ISM Wireless LAN
Wireless Local Loop
Local Multipoint Distribution Service
Point-to-Point Systems
20 Thin
700 to 1100
QFN-EP*
MAX9990 ETP -40 ° C to +85 ° C 20 QFN-EP* 1500 to 2200
* EP = Exposed paddle.
Typical Application Circuit/Pin Configuration appears at end of data sheet.
Typical Operating Circuit and Block Diagram
PLL BUFFER
TO PLL
PRESCALER
OUTPLL
(+3dBm)
MAX9989
MAX9990
RF INPUT
IN
(+7dBm)
INPUT AMP
OUTPUT AMP
OUTLO
(+17dBm)
IF OUTPUT
RF LO
BIAS
BIASIN
BIASOUT
BIAS
CONTROL
NETWORK
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
相关PDF资料 |
PDF描述 |
|---|---|
| MAX9990EVKIT | EVAL KIT FOR MAX9990 |
| MAX9993ETP+D | IC MIXER DOWN CONV 20-TQFN |
| MAX9993EVKIT | EVAL KIT FOR MAX9993 |
| MAX9994ETP+T | IC MIXER DOWN CONV 20-TQFN |
| MAX9994EVKIT | EVAL KIT FOR MAX9994 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9989EVKIT | 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 |
| MAX998ESA | 功能描述:校验器 IC Single Low Power Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX998ESA+ | 功能描述:校验器 IC Single Low Power Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX998ESA+T | 功能描述:校验器 IC Single Low Power Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX998ESA-T | 功能描述:校验器 IC Single Low Power Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
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