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LT5572EUF

更新时间： 2024-02-17 11:35:57
品牌 Logo 应用领域
凌特 - Linear 射频调制器射频解调器微波调制器微波解调器射频和微波
页数 文件大小 规格书
16页 319K
描述
1.5GHz to 2.5GHz High Linearity Direct Quadrature Modulator

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中文翻译

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LT5572EUF 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active针数：16
Reach Compliance Code：compliant风险等级：5.04
特性阻抗：50 Ω构造：COMPONENT
最大输入功率 (CW)：5 dBmJESD-609代码：e3
调制技术：I/Q最大工作频率：2500 MHz
最小工作频率：1500 MHz最高工作温度：85 °C
最低工作温度：-40 °C射频/微波设备类型：MODULATOR
端子面层：Matte Tin (Sn)Base Number Matches：1

LT5572EUF 数据手册

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LT5572  
1.5GHz to 2.5GHz  
High Linearity Direct  
Quadrature Modulator  
U
DESCRIPTIO  
FEATURES  
■
Direct Conversion from Baseband to RF  
The LT5572 is a direct I/Q modulator designed for high  
performance wireless applications, including wireless  
infrastructure. It allows direct modulation of an RF signal  
usingdifferentialbasebandIandQsignals.ItsupportsPHS,  
GSM, EDGE, TD-SCDMA, CDMA, CDMA2000, W-CDMA  
and other systems. It may also be configured as an image  
reject up-converting mixer by applying 90° phase-shifted  
signals to the I and Q inputs. The high impedance I/Q  
baseband inputs consist of voltage-to-current converters  
that in turn drive double-balanced mixers. The outputs of  
these mixers are summed and applied to an on-chip RF  
transformer which converts the differential mixer signals  
to a 50Ω single-ended output. The four balanced I and Q  
baseband input ports are intended for DC coupling from a  
source with a common mode voltage level of about 0.5V.  
The LO path consists of an LO buffer with single-ended  
input and precision quadrature generators that produce  
the LO drive for the mixers. The supply voltage range is  
4.5V to 5.25V.  
■
High Output: –2.5dB Conversion Gain  
■
High OIP3: +21.6dBm at 2GHz  
■
Low Output Noise Floor at 20MHz Offset:  
No RF: –158.6dBm/Hz  
P
OUT  
= 4dBm: –152.5dBm/Hz  
■
■
■
■
Low Carrier Leakage: –39.4dBm at 2GHz  
High Image Rejection: –41.2dBc at 2GHz  
4-Channel W-CDMA ACPR: –67.7dBc at 2.14GHz  
Integrated LO Buffer and LO Quadrature Phase  
Generator  
■
■
50Ω AC-Coupled Single-Ended LO and RF Ports  
High Impedance DC Interface to Baseband Inputs  
with 0.5V Common Mode Voltage  
16-Lead QFN 4mm × 4mm Package  
U
■
APPLICATIO S  
■
Infrastructure Tx for DCS, PCS and UMTS Bands  
■
Image Reject Up-Converters for DCS, PCS and UMTS  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Bands  
■
Low Noise Variable Phase Shifter for 1.5GHz to  
2.5GHz Local Oscillator Signals  
U
TYPICAL APPLICATIO  
W-CDMA ACPR, AltCPR and Noise  
vs RF Output Power at 2.14GHz for  
1, 2 and 4 Channels  
Direct Conversion Transmitter Application  
–50  
–60  
–70  
–80  
–90  
–125  
–135  
–145  
–155  
–165  
5V  
DOWNLINK TEST  
MODEL 64 DPCH  
8, 13  
100nF  
V
LT5572  
14  
16  
×2  
CC  
RF = 1.5GHz  
TO 2.5GHz  
4-CH ACPR  
4-CH AltCPR  
2-CH ACPR  
1-CH  
ACPR  
I-DAC  
V-I  
I-CH  
11  
PA  
0°  
1
EN  
90°  
BALUN  
Q-CH  
V-I  
2-CH AltCPR  
7
5
1-CH AltCPR  
1-CH NOISE  
Q-DAC  
2-CH NOISE  
–15  
BASEBAND  
GENERATOR  
4-CH NOISE  
–25  
–20  
5572 TA01a  
3
VCO/SYNTHESIZER  
2, 4, 6, 9, 10, 12, 15, 17  
–30  
–10  
–5  
RF OUTPUT POWER PER CARRIER (dBm)  
5572 TA01b  
5572f  
1
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中文翻译

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