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參數資料
| 型號： | MAX275AEWP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Analog Filter |
| 中文描述： | CONTINUOUS TIME FILTER, BUTTERWORTH/BESSEL/CHEBYSHEV, LOWPASS/BANDPASS, PDSO28 |
| 封裝： | SO-20 |
| 文件頁數： | 1/28頁 |
| 文件大小： | 328K |
| 代理商： | MAX275AEWP |
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General Desc ription
The MAX2700/MAX2701 are highly integrated direct
downconversion (zero-IF) receivers designed for wide-
band wireless local loop (WLL) systems operating in
the 1.8GHz to 2.5GHz band. The MAX2700/MAX2701s’
zero-IF architecture eliminates the need for IF down-
conversion stages and the use of an IF SAW filter. This
reduces the overall receiver cost by reducing the com-
ponent count and required board space.
The MAX2700/MAX2701 have three main blocks: low-
noise amplifier (LNA), quadrature downconverter, and
baseband variable gain amplifiers (VGAs). The LNA is
a single-ended amplifier with selectable gain and shut-
down options. It provides a high input third-order inter-
cept point (IP3), which reduces cross-modulation and
gain compression due to high-level RF interference.
The quadrature downconverter section consists of two
highly linear double-balanced mixers driven by an
external local oscillator (LO) with a selectable LO dou-
bler. The double-balanced mixers are optimized to pro-
vide high input IP3 and minimum added noise. The
mixers’ high input second-order intercept point (IIP2)
helps minimize receiver desensitization due to high-
level AM-modulated interferers.
The two baseband VGAs in each channel provide 80dB
of total maximum gain and greater than 60dB of gain
control. The first AGC amplifier is optimized for low
noise, low power dissipation, and high linearity over the
entire gain range to ensure high gain compression per-
formance. An external lowpass filter between baseband
VGAs provides the required channel selectivity at the
adjacent channel. An integrated gain offset correction
loop circuit provides <0.3dB amplitude mismatch
between the I and Q channels.
The MAX2700/MAX2701 operate from a single +2.7V to
+3.3V power supply, drawing only 165mA of supply
current and 20μA in shutdown mode. Both devices are
available in small 48-pin TQFP packages with exposed
paddle (EP) for optimum high-frequency performance.
________________________Applic ations
Wireless Local Loop
Wideband Direct-Sequence Spread-Spectrum
Systems
Two-Way MMDS
Wideband 2.4GHz ISM Radios
Digital Microwave Radios
Features
o
Input Frequency Range
1.8GHz to 2.1GHz (MAX2700)
2.1GHz to 2.5GHz (MAX2701)
o
Cascaded Performance at 1960 MHz
3.5dB Noise Figure
-7.5dBm Input IP3 at Maximum Gain
o
LNA with Selectable Gain and Shutdown Option
o
High Linearity Direct I/Q Downconverter
o
Wideband LO Quadrature Generator
o
3dB Baseband Channel Bandwidth of At Least
56MHz
o
Variable Gain Baseband Amplifiers with >60dB
Control Range
o
Baseband Gain Offset Correction Loop
o
+2.7V to +3.3V Single-Supply Operation
o
Small 48-pin TQFP-EP Package
M
1.8GHz to 2.5GHz Direc t Downc onversion
Rec eivers
________________________________________________________________
Maxim Integrated Products
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1
IIN2-
DCI2+
DCI2-
IOUT2
GND
RFIN-
RFIN+
V
CC
QOUT2
DCQ2-
DCQ2+
QIN2-
CEXT-
CEXT+
V
CC
X2_EN
GND
LNAIN
GND
GND
GAIN_SET
SHDN
AGC
V
CC
1
2
3
4
5
6
7
8
9
10
11
12
1
1
1
1
1
1
1
2
2
2
2
2
4
4
4
4
4
4
4
4
4
3
3
3
36
35
34
33
32
31
30
29
28
27
26
25
G
L
G
M
V
C
Q
Q
D
D
Q
M
Q
V
C
L
G
M
G
I
I
D
D
I
V
C
I
TQFP-EP
MAX2700
MAX2701
TOP VIEW
Pin Configuration
19-1667; Rev 0; 4/00
Ordering Information
PART
TEMP. RANGE
-40
°
C to 85
°
C
-40
°
C to 85
°
C
PIN-PACKAGE
48 TQFP-EP
48 TQFP-EP
MAX2700
ECM
MAX2701
ECM
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相關代理商/技術參數 |
參數描述 |
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| MAX275AEWP+ | 功能描述:有源濾波器 4th & 8th Order Continuous-Time RoHS:否 制造商:Maxim Integrated 通道數量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX275AEWP+T | 功能描述:有源濾波器 4th & 8th Order Continuous-Time RoHS:否 制造商:Maxim Integrated 通道數量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX275AEWP-T | 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX275AMDP | 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX275AMJP | 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
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