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CW2438-44单频WIFI模组2.4G+蓝牙4.2
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2021-11-22
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CW2438-44单频WIFI模组围绕赛普拉斯CYW438设计。Cypress CYW43438是一款高度集成的单芯片解决方案,为智能手机、平板电脑和各种其他便携式设备提供业界低的RBOM。该芯片包括2.4 GHz WLAN、IEEE 802.11 b/g/n MAC/基带/无线电和蓝牙4.2。此外,它集成了满足大多数手持系统输出功率要求的功率放大器(PA)、具有同类接收机灵敏度的低噪声放大器(LNA)和内部发射/接收(iTR)RF开关,进一步降低了总体解决方案成本和印刷电路板面积。WLAN主机接口支持gSPI和SDIO V2.0模式,在50 MHz总线频率下以4位模式运行时,可提供高达200 Mbps的原始数据传输速率。为蓝牙主机接口提供了一个独立的高速UART。CYW43438采用先进的设计技术和工艺技术来降低有功和空载功率,旨在满足需要小功耗和紧凑尺寸的高度移动设备的需求。它包括一个电源管理单元,简化了系统电源拓扑,允许直接使用可充电移动平台电池进行操作,同时大限度地延长电池寿命。CYW43438实现了世界上先进的增强型协作共存算法和硬件机制,实现了高度协作的WLAN和蓝牙共存
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CW2438-44
www.sziton.com V2.3 - Apr., 2021
DISCLAIMER AND COPYRIGHT NOTICE
Information in this document, including URL references, is subject to change without notice.
This document is provided “As if” with no whatsoever, including any warranty of merchantability, noninfringement, fitness for any
purpose, or any warranty otherwise arising out of any proposal, specification or samples.
All liability, including liability for infringement of any proprietary rights, relating to use of information in this document is disclaimed. No
licenses express or implied, by estoppel or otherwise, to any intellectual property rights are granted herein.
The Bluetooth logo and symbol belong to the Bluetooth SIG Inc.
The Wi-Fi Alliance Member Logo is a trademark of the Wi-Fi Alliance.
All trade names, trademarks and registered trademarks mentioned in this document are property of their respective owners, and are
hereby acknowledged.
Copyright ITON Technology Corp. All rights reserved.
CW2438-44
IEEE 802.11 b/g/n 1T1R Wi-Fi +BT4.2 Combo Module
CW2438-44
www.sziton.com V2.3 - Apr., 2021
ITON Technology Corp. Page 2 of 17
Table of Contents
Table of Contents
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2
1. Device Overview
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3
1.1 Features
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3
1.2 Applications
.......................................................................................................................................................
3
1.3 Descriptions
.......................................................................................................................................................
3
1.4 Functional Block Diagram
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4
2. Pin Configuration and Functions
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5
2.1 Module Pin Diagram
.........................................................................................................................................
5
2.2 Pin Functions
.....................................................................................................................................................
5
3. Specifications
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7
3.1 Absolute Maximum Rating
..............................................................................................................................
7
3.2 Recommended Operating Conditions
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7
3.3 RF Characteristics
............................................................................................................................................
7
3.3.1 WiFi RF Specifications
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7
3.3.2 BT RF Specifications
...............................................................................................................................
8
3.4 Power Consumption Summary
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9
3.4.1 WiFi Consumption
....................................................................................................................................
9
3.4.2 BT Consumption
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9
4. Application, Implementation, and Layout
...........................................................................................................
10
4.1 Application Diagram
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10
4.2 Typical Application Circuit
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4.3 Layout Guideline
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13
5. Mechanical and Package
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14
5.1 Module Size
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5.2 Recommended PCB Footprint
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15
5.3 Package Information
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6. Thermal Reflow
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16
7. Ordering Information
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17
8. Revision History
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17
CW2438-44
www.sziton.com V2.3 - Apr., 2021
ITON Technology Corp. Page 3 of 17
1. Device Overview
1.1 Features
IEEE 802.11 b/g/n single-band radio with an internal power amplifier. LNA, and T/R switch
Bluetooth V4.2 with integrated class 1 PA
Concurrent Bluetooth and WLAN operation
ON-chip WLAN driver execution capable of supporting IEEE 802.11functionality
Simultaneous BT/WLAN reception with a single antenna
WLAN host interface options:
SDIO V2.0, interface default and high-speed timing
gSPI--up to a 50 MHz clock rate
BT UART (up to 4Mbps) host digital interface that can be used concurrently with the above WLAN
host interfaces
ECI-enhanced coexistence support, which coordinates BT SCO transmissions around WLAN
receptions
PCM for BT audio
HCI high-speed UART(H4 and H5) transport support
Wideband speed support(16bits, 16khz sampling PCM, through PCM interfaces)
Bluetooth Smart Audio technology improves voice and music quality to headsets
Bluetooth low power inquiry and page scan
Bluetooth Low Energy(BLE) support
Bluetooth Packet Loss Concealment (PLC)
Multiple simultaneous A2DP audio streams
1.2 Applications
IP camera
Tablet
Smart appliances
Other multimedia devices
Mobile devices
Network devices
Smartphone
1.3 Descriptions
This module is designed around Cypress® CYW43438. The Cypress CYW43438 is a highly integrated
single-chip solution and offers the lowest RBOM in the industry for smartphones, tablets, and a wide range
of other portable devices. The chip includes a 2.4 GHz WLAN IEEE 802.11 b/g/n MAC / baseband / radio,
and Bluetooth 4.2. In addition, it integrates a power amplifier (PA) that meets the output power
requirements of most handheld systems, a low-noise amplifier (LNA) for best-in-class receiver sensitivity,
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