Datasheet > LTC5587

LTC5587

更新时间： 2023-12-20 18:46:02

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	317K
描述
具数字输出的 6GHz RMS 功率检波器

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LTC5587 数据手册

LTC5587

6 GHz RMS Power Detector

with Digital Output

FEATURES

DESCRIPTION

The LTC^®5587 is a 10MHz to 6GHz, low power monolithic

precision RMS power detector with an integrated 12-bit

serial analog-to-digital converter (ADC). The RMS detec-

tor uses a proprietary technique to accurately measure the

RF power of modulated signals with crest-factor as high

as 12dB. For an input frequency of 2.14GHz the detection

range is from –34dBm to 6dBm. The serial digital output

of the detector is a 12-bit word value that is directly pro-

portional to the RF signal power measured in dBm. The

LTC5587 is suitable for precision power measurement

for a wide variety of RF standards, including LTE, WiMAX,

W-CDMA, TD-SCDMA, CDMA, CDMA2000, EDGE, GSM,

etc. The DC output of the detector is connected in series

with an on-chip 300Ω resistor to the analog output pin

Frequency Range: 10MHz to 6GHz

Accurate Power Measurement of High Crest Factor

(Up to 12dB) Waveforms

40dB Log Linear Dynamic Range

Exceptional Accuracy Over Temperature

Single-Ended RF Input

0.014dB/Bit (12-Bit) ADC Resolution (V = 1.8V)

ADC Sample Rate Up to 500ksps

SPI/MICROWIRE Serial I/O

Compatible with 1V to 3.6V Digital Logic

Fast Response Time: 1μs Rise, 8μs Fall

Low Power: 3mA at 3.3V and 500ksps

Small 3mm × 3mm 12-pin DFN Package

REF

(V ). This enables further filtering of the output modu-

OUT

APPLICATIONS

lation ripple using an off-chip capacitor before analog-to-

digitalconversion. TheADCfeaturesincludenodatalatency,

no missing codes, and a sampling rate of up to 500ksps. A

LTE, WiMAX, W-CDMA, TD-SCDMA, CDMA,

CDMA2000, EDGE, GSM

dedicated external reference pin (V ) can be tied to V

REF

Pico-Cells, Femto-Cells RF Power Control

orothersuitablelow-impedancevoltagereferencetosetthe

ADC full-scale input voltage range. The ADC also features

an automatic power down after each conversion making

the LTC5587 ideal for low-power applications.

Wireless Repeaters

CATV/DVB Transmitters

MIMO Wireless Access Points

Portable RMS Power Measurement

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Antenna Monitor

BLOCK DIAGRAM

Linearity Error vs RF Input Power

2140MHz Modulated Waveforms

= 25°C

EXPOSED

PAD

OUT

OUTPUT

BUFFER

150kHz LPF

300ꢀ

RMS

DETECTOR

THREE-STATE

SERIAL OUTPUT

PORT

SDO

12-BIT ADC

S/H

WCDMA, UL

SCK

–1

BIAS

TIMING

LOGIC

CONV

WCDMA DL 1C

WCDMA DL 4C

LTE DL 1C

–2

–3

GND

REF

LTE DL 4C

5587 BD

–30 –25 –20 –15 –10 –5

RF INPUT POWER (dBm)

–35

5587 G12

5587f

12 3 4 5 6 7...20

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与LTC5587相关器件

型号	品牌	描述	获取价格	数据表
LTC5587IDD#PBF	Linear	LTC5587 - 6 GHz RMS Power Detector with Digital Output; Package: DFN; Pins: 12; Temperatur	获取价格
LTC5587IDD#TRPBF	Linear	LTC5587 - 6 GHz RMS Power Detector with Digital Output; Package: DFN; Pins: 12; Temperatur	获取价格
LTC5588-1	Linear	200MHz to 6000MHz Quadrature Modulator with Ultrahigh OIP3	获取价格
LTC5588-1	ADI	具超高 OIP3 的 200MHz 至 6000MHz 正交调制器	获取价格
LTC5588IPF-1#PBF	Linear	LTC5588-1 - 200MHz to 6000MHz Quadrature Modulator with Ultrahigh OIP3; Package: UTQFN; Pi	获取价格
LTC5588IPF-1#TRPBF	Linear	LTC5588-1 - 200MHz to 6000MHz Quadrature Modulator with Ultrahigh OIP3; Package: UTQFN; Pi	获取价格

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