Datasheet > LTC6946-1

LTC6946-1

更新时间： 2024-09-27 11:45:11

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
32页	1222K
描述
30MHz to 1.4GHz IQ Demodulator

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中文翻译

获取价格

数据手册

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LTC6946-1 数据手册

LTC5584

30MHz to 1.4GHz IQ

Demodulator with IIP2 and

DC Offset Control

FeaTures

DescripTion

I/Q Bandwidth of 530MHz or Higher

The LTC^®5584 is a direct conversion quadrature demodu-

lator optimized for high linearity receiver applications in

the 30MHz to 1.4GHz frequency range. It is also usable

in the 10MHz to 30MHz and 1.4GHz to 2GHz ranges with

reduced performance. It is suitable for communications

receivers where an RF signal is directly converted into I

and Q baseband signals with bandwidth of 530MHz or

higher. The LTC5584 incorporates balanced I and Q mix-

ers, LO buffer amplifiers and a precision, high frequency

quadraturephaseshifter.Inaddition,theLTC5584provides

four analog control voltage interface pins for IIP2 and DC

offset correction, greatly simplifying system calibration.

High IIP3: 31dBm at 450MHz, 28dBm at 900MHz

High IIP2: 70dBm at 450MHz, 65dBm at 900MHz

User Adjustable IIP2 to >80dBm

User Adjustable DC Offset Null

High Input P1dB: 13.1dBm at 900MHz

Image Rejection: 45dB at 900MHz

Noise Figure: 9.9dB at 450MHz

10dB at 900MHz

Conversion Gain: 5.4dB at 450MHz

5.7dB at 900MHz

Shutdown Mode

Operating Temperature Range (T ): –40°C to 105°C

The high linearity of the LTC5584 provides excellent spur-

free dynamic range for the receiver. This direct conversion

demodulator can eliminate the need for intermediate fre-

quency(IF)signalprocessing,aswellasthecorresponding

requirements for image filtering and IF filtering. These

I/Q outputs can interface directly to channel-select filters

(LPFs) or to baseband amplifiers.

24-Lead 4mm × 4mm QFN Package

applicaTions

LTE/W-CDMA/TD-SCDMA Base Station Receivers

Wideband DPD Receivers

Point-To-Point Broadband Radios

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.

High Linearity Direct Conversion I/Q Receivers

Image Rejection Receivers

Typical applicaTion

Direct Conversion Receiver with IIP2 and DC Offset Calibration

BPF

LNA

BPF

INPUT

LPF

VGA

–

IIP2 vs IP2I, IP2Q Trim Voltage

A/D

130

120

110

100

–

I, –40°C

I, 25°C

I, 85°C

I, 105°C

Q, –40°C

Q, 25°C

Q, 85°C

Q, 105°C

= 450MHz

D/A

IP2 ADJUST

DC OFFSET

IP2 AND DC

OFFSET CAL

0°

LO INPUT

LTC5584

90°

D/A

DC OFFSET

IP2 ADJUST

IP2 AND DC

OFFSET CAL

LPF

VGA

–

0.1

0.2

0.3 0.4 0.5

0.6

0.7

0.8 0.9 1.0

ENABLE

IP2I, IP2Q (V)

A/D

5584 TA01b

5584 TA01a

5584f

12 3 4 5 6 7...32

中文翻译

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与LTC6946-1相关器件

型号	品牌	获取价格	描述	数据表
LTC6946-2	Linear	获取价格	30MHz to 1.4GHz IQ Demodulator
LTC6946-3	Linear	获取价格	30MHz to 1.4GHz IQ Demodulator
LTC6946IUFD-3#PBF	Linear	获取价格	LTC6946 - Ultralow Noise and Spurious 0.37GHz to 6.39GHz Integer-N Synthesizer with Integr
LTC6946-x	Linear	获取价格	16-Bit, 20Msps Low Noise Dual ADC
LTC6947	ADI	获取价格	超低噪声 0.35GHz 至 6GHz 分数 N 合成器
LTC694C	Linear	获取价格	Microprocessor Supervisory Circuits
LTC694C-3.3	Linear	获取价格	3.3V Microprocessor Supervisory Circuits
LTC694CJ8	Linear	获取价格	IC 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, CDIP8, 0.300 INCH, HERMETIC SEALED, CERDIP-8, Po
LTC694CN-3.3	Linear	获取价格	IC 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, PLASTIC, DIP-8, Power Management Circuit
LTC694CN8	Linear	获取价格	Microprocessor Supervisory Circuits

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