Datasheet > AD8346ARU

AD8346ARU

更新时间： 2024-11-17 22:50:03

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	194K
描述
0.8 GHz-2.5 GHz Quadrature Modulator

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AD8346ARU 数据手册

0.8 GHz–2.5 GHz

Quadrature Modulator

AD8346

FUNCTIONAL BLOCK DIAGRAM

FEATURES

High Accuracy

1 Degree rms Quadrature Error @ 1.9 GHz

0.2 dB I/Q Amplitude Balance @ 1.9 GHz

Broad Frequency Range: 0.8 GHz–2.5 GHz

Sideband Suppression: –46 dBc @ 0.8 GHz

Sideband Suppression: –36 dBc @ 1.9 GHz

Modulation Bandwidth: DC–70 MHz

0 dBm Output Compression Level @ 0.8 GHz

Noise Floor: –147 dBm/Hz

IBBP

IBBN

COM1

LOIN

QBBP

QBBN

COM4

VPS2

PHASE

SPLITTER

Single 2.7 V–5.5 V Supply

Quiescent Operating Current: 45 mA

Standby Current: 1 ␮A

LOIP

VOUT

COM3

COM2

VPS1

ENBL

AD8346

16-Lead TSSOP Package

BIAS

APPLICATIONS

Digital and Spread Spectrum Communication Systems

Cellular/PCS/ISM Transceivers

Wireless LAN/Wireless Local Loop

QPSK/GMSK/QAM Modulators

Single-Sideband (SSB) Modulators

Frequency Synthesizers

Image Reject Mixer

PRODUCT DESCRIPTION

This quadrature modulator can be used as the transmit modula-

tor in digital systems such as PCS, DCS, GSM, CDMA, and

ISM transceivers. The baseband quadrature inputs are directly

modulated by the LO signal to produce various QPSK and

QAM formats at the RF output.

The AD8346 is a silicon RFIC I/Q modulator for use from

0.8 GHz to 2.5 GHz. Its excellent phase accuracy and ampli-

tude balance allow high performance direct modulation to RF.

The differential LO input is applied to a polyphase network

phase splitter that provides accurate phase quadrature from

0.8 GHz to 2.5 GHz. Buffer amplifiers are inserted between

two sections of the phase splitter to improve the signal-to-noise

ratio. The I and Q outputs of the phase splitter drive the LO

inputs of two Gilbert-cell mixers. Two differential V-to-I con-

verters connected to the baseband inputs provide the baseband

modulation signals for the mixers. The outputs of the two mixers

are summed together at an amplifier which is designed to drive a

50 Ω load.

Additionally, this quadrature modulator can be used with direct

digital synthesizers in hybrid phase-locked loops to generate

signals over a wide frequency range with millihertz resolution.

The AD8346 is supplied in a 16-lead TSSOP package, measur-

ing 6.5 × 5.1 × 1.1 mm. It is specified to operate over a

–40°C to +85°C temperature range and 2.7 V to 5.5 V supply

voltage range. The device is fabricated on Analog Devices’ high

performance 25 GHz bipolar silicon process.

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

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AD8346ARU 替代型号

型号	品牌	替代类型	描述	数据表
AD8346ARUZ	ADI	类似代替	0.8 GHz to 2.5 GHz Quadrature Modulator
AD8346ARU-REEL	ADI	类似代替	0.8 GHz-2.5 GHz Quadrature Modulator

与AD8346ARU相关器件

型号	品牌	获取价格	描述	数据表
AD8346ARU-REEL	ADI	获取价格	0.8 GHz-2.5 GHz Quadrature Modulator
AD8346ARU-REEL	ROCHESTER	获取价格	800 MHz - 2500 MHz RF/MICROWAVE I/Q MODULATOR, TSSOP-16
AD8346ARU-REEL7	ADI	获取价格	0.8 GHz-2.5 GHz Quadrature Modulator
AD8346ARUZ	ADI	获取价格	0.8 GHz to 2.5 GHz Quadrature Modulator
AD8346ARUZ-REEL	ADI	获取价格	2.5 GHz Direct Conversion Quadrature Modulator
AD8346ARUZ-REEL	ROCHESTER	获取价格	800 MHz - 2500 MHz RF/MICROWAVE I/Q MODULATOR, LEAD FREE, TSSOP-16
AD8346ARUZ-REEL1	ADI	获取价格	0.8 GHz to 2.5 GHz Quadrature Modulator
AD8346ARUZ-REEL7	ADI	获取价格	2.5 GHz Direct Conversion Quadrature Modulator
AD8346ARUZ-REEL71	ADI	获取价格	0.8 GHz to 2.5 GHz Quadrature Modulator
AD8346EVAL	ADI	获取价格	0.8 GHz to 2.5 GHz Quadrature Modulator

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