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19-1736; Rev 0; 7/00
Triple/Dual-Mode
CDMA LNA/Mixers
________________ General Description
The MAX2323/MAX2325 are low-noise amplifier (LNA)
plus mixer ICs optimized for code-division multiple-access
(CDMA) applications in both cellular and PCS bands. The
MAX2323 addresses dual-band, triple-mode CDMA appli-
cations by providing switched signal paths for cellular FM,
cellular CDMA, and PCS CDMA. The MAX2325 is a cellu-
lar-band dual-mode version.
To optimize cellular-band dynamic range at minimum cur-
rent, the MAX2323/MAX2325 implement four LNA states:
high gain/high linearity, high gain/low linearity, midgain,
and low gain. In high-gain/high-linearity mode, the
adjustable high-intercept LNA minimizes desensitization in
the presence of a large interfering signal. For the other
gain states, the LNA current is reduced to improve stand-
by time.
The CDMA mixers are designed for high linearity, low
noise, and differential IF outputs, while the FM mixer is
____________________________Features
o 2.7V Operation
o Dual Band, Triple Mode
o Three LNA Gain Settings (Cellular)
o Two LNA Gain Settings (PCS)
o 18mA in Low-Gain Mode
19.5mA in Paging and Midgain Mode
26.5mA in High-Gain, High-Linearity Mode
16.5mA in FM Mode, High-Gain, Low-Linearity
Mode
o 2.5dB (typ) Cascade Noise Figure
o Adjustable LNA IIP3, +5dBm to +13dBm
o Ultra-Small 28-Pin Package (5mm x 5mm)
Ordering Information
designed for lower current and single-ended output. Each
band is implemented with a separate mixer to optimize
performance for the specific band.
The MAX2323/MAX2325 can also be used in TDMA,
EDGE, and W-CDMA phones.
PART
MAX2323 EGI
MAX2325 EGI
MAX2323 EVKIT
TEMP. RANGE
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
PIN- PACKAGE
28 QFN
28 QFN
28 QFN
Pin Configuration/
________________________Applications
Dual-Band, Triple-Mode PCS/Cellular Phones
Dual-Mode Cellular Phones
TOP VIEW
Functional Diagram
28
27
26
25
24
23
22
RLNA 1
21 RBIAS
Typical Application Circuits appear at end of data sheet.
PLNAIN 2
GND 3
CLNAIN 4
20 CDMA+
19 CDMA-
18 GND
SLEEP 5
G2 6
G1 7
MAX2323
17 BAND
16 V CC
15 FMOUT
8
9
10
11
12
13
14
QFN
________________________________________________________________ Maxim Integrated Products
1
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.
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相关代理商/技术参数
MAX2323EVKIT 功能描述:射频开发工具 MAX2323 Eval Kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V
MAX2324EUP 功能描述:射频放大器 Adj SiGe Dual Band LNA/Mixer RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel
MAX2324EUP+ 功能描述:射频放大器 Adj SiGe Dual Band LNA/Mixer RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel
MAX2324EUP+T 功能描述:射频放大器 Adj SiGe Dual Band LNA/Mixer RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel
MAX2324EUPMA 制造商:Maxim Integrated Products 功能描述:DOWNCONVERTER, 20 Pin, Plastic, TSSOP
MAX2324EUP-T 功能描述:射频放大器 Adj SiGe Dual Band LNA/Mixer RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel
MAX2324EVKIT 功能描述:射频开发工具 MAX2320-22/24/26/27 Eval Kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V
MAX2325EGI 功能描述:射频放大器 Triple/Dual-Mode CDMA LNA/Mixer RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel