收藏本站
MAX2022
Pin Description (continued)
High-Dynamic-Range, Direct Up/
Downconversion 1500MHz to 3000MHz
Quadrature Modulator/Demodulator
PIN
21
23
25
26
31
33
—
NAME
BBIN
RF
BBQN
BBQP
VCCLOQ2
VCCLOQ1
EP
FUNCTION
Baseband In-Phase Negative Input
RF Port
Baseband Quadrature Negative Input
Baseband Quadrature Positive Input
Q-Channel 2nd LO Amplifier Supply Voltage 
Q-Channel 1st LO Amplifier Supply Voltage
Exposed Ground Paddle. The exposed paddle  MUST be soldered to the
ground plane using multiple vias.
Detailed Description
The MAX2022 is designed for upconverting differential
in-phase (I) and quadrature (Q) inputs from baseband to
a 1500MHz to 3000MHz RF frequency range. The device
can also be used as a demodulator, downconverting an
RF input signal directly to baseband or an IF frequency.
Applications include single and multicarrier 1500MHz
to 3000MHz UMTS/WCDMA, LTE/TD-LTE, cdma2000,
and DCS/PCS base stations. Direct conversion architec-
tures are advantageous since they significantly reduce
transmitter or receiver cost, part count, and power con-
sumption as compared to traditional IF-based double-
conversion systems.
The MAX2022 integrates internal baluns, an LO buffer, a
phase splitter, two LO driver amplifiers, two matched dou-
ble-balanced passive mixers, and a wideband quadrature
combiner. Precision matching between the in-phase and
quadrature channels, and highly linear mixers achieves
excellent dynamic range, ACLR, 1dB compression point,
and LO and sideband suppression, making it ideal for
four-carrier WCDMA/UMTS operation.
LO Input Balun, LO Buffer, and Phase Splitter
The MAX2022 requires a single-ended LO input, with a
nominal power of 0dBm. An internal low-loss balun at
the LO input converts the single-ended LO signal to a
differential signal at the LO buffer input. In addition, the
internal balun matches the buffer ’s input impedance to
50? over the entire band of operation.
The output of the LO buffer goes through a phase splitter,
which generates a second LO signal that is shifted by 90° 
with  respect  to  the  original.  The  0°  and  90°  LO  signals 
drive the I and Q mixers, respectively.
www.maximintegrated.com
LO Driver
Following the phase splitter, the 0° and 90° LO signals are 
each amplified by a two-stage amplifier to drive the I and
Q mixers. The amplifier boosts the level of the LO signals
to compensate for any changes in LO drive levels. The
two-stage LO amplifier allows a wide input power range
for the LO drive. While a nominal LO power of 0dBm is
specified, the MAX2022 can tolerate LO level swings from
-3dBm to +3dBm.
I/Q Modulator
The MAX2022 modulator is composed of a pair of
matched double-balanced passive mixers and a balun.
The I and Q differential baseband inputs accept signals
from DC to beyond 500MHz with differential amplitudes
up to 2V P-P differential (common-mode input equals 0V).
The wide input bandwidth allows for direct interface with
the baseband DACs. No active buffer circuitry between
the baseband DAC and the MAX2022 is required.
The I and Q signals directly modulate the 0° and 90° LO 
signals and are upconverted to the RF frequency. The
outputs of the I and Q mixers are combined through a
balun to a singled-ended RF output.
Applications Information
LO Input Drive
The LO input of the MAX2022 requires a single-ended
drive at a 1500MHz to 3000MHz frequency. It is internally
matched to 50?. An integrated balun converts the single-
ended input signal to a differential signal at the LO buffer
differential input. An external DC-blocking capacitor is the
only external part required at this interface. The LO input
power should be within the -3dBm to +3dBm range.
Maxim Integrated │ 18
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MAX2022EVKIT EVAL KIT FOR MAX2022
MAX2023ETX+T IC MOD/DEMOD HI DYN RNG 36-TQFN
MAX2027EUP+D IC AMP VAR GAIN 20-TSSOP
MAX2027EVKIT EVAL KIT FOR MAX2027
MAX2029ETP+T IC MIXER UP/DOWN HI LIN 20-TQFN
MAX2031EVKIT EVAL KIT FOR MAX2031
MAX2032ETP+ IC MIXER UP/DOWN CONVER 20TQFN
MAX2034CTM+ IC AMP LOW NOISE QUAD 48-TQFN
相关代理商/技术参数
MAX2022ETX+TD 功能描述:调节器/解调器 1.5-2.5GHz Quadratr Modulator RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel
MAX2022ETX-D 制造商:Maxim Integrated Products 功能描述:HI-DYNAMIC-RANGE, DIRECT UPCONVER - Tape and Reel
MAX2022ETX-T 功能描述:调节器/解调器 1.5GHz-2.5GHz Quad Mod/Demod RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel
MAX2022EVKIT 功能描述:射频开发工具 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
MAX2023 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Evaluation Kit
MAX2023_1 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Evaluation Kit
MAX2023_V1 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2500MHz Quadrature Mod/Demod
MAX2023ETX 功能描述:调节器/解调器 1.5GHz-2.3GHz Quad Mod/Demod RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel