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Cypress Semiconductor Electronic Components Datasheet

CYW4343W Datasheet

Single-Chip 802.11 b/g/n MAC/Baseband/Radio

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CYW4343W
Single-Chip 802.11 b/g/n MAC/Baseband/Radio
with Bluetooth 4.1
The Cypress CYW4343W is a highly integrated single-chip solution and offers the lowest RBOM in the industry for wearables, Internet
of Things (IoT) gateways, home automation, 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 4.1 support. 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, and an internal
transmit/receive (iTR) RF switch, further reducing the overall solution cost and printed circuit board area.
The WLAN host interface supports SDIO v2.0 mode, providing a raw data transfer rate up to 200 Mbps when operating in 4-bit mode
at a 50 MHz bus frequency. An independent, high-speed UART is provided for the Bluetooth host interface.Using advanced design
techniques and process technology to reduce active and idle power, the CYW4343W is designed to address the needs of highly mobile
devices that require minimal power consumption and compact size. It includes a power management unit that simplifies the system
power topology and allows for operation directly from a rechargeable mobile platform battery while maximizing battery life.
The CYW4343W implements the world’s most advanced Enhanced Collaborative Coexistence algorithms and hardware mechanisms,
allowing for an extremely collaborative WLAN and Bluetooth coexistence.
Cypress Part Numbering Scheme
Cypress is converting the acquired IoT part numbers from Broadcom to the Cypress part numbering scheme. Due to this conversion,
there is no change in form, fit, or function as a result of offering the device with Cypress part number marking. The table provides
Cypress ordering part number that matches an existing IoT part number.
Table 1. Mapping Table for Part Number between Broadcom and Cypress
Broadcom Part Number
Cypress Part Number
BCM4343W
CYW4343W
BCM4343WKUBG
CYW4343WKUBG
Features
IEEE 802.11x Key Features
Single-band 2.4 GHz IEEE 802.11b/g/n.
Support for 2.4 GHz Cypress TurboQAM® data rates (256-
QAM) and 20 MHz channel bandwidth.
Integrated iTR switch supports a single 2.4 GHz antenna
shared between WLAN and Bluetooth.
Supports explicit IEEE 802.11n transmit beamforming
Tx and Rx Low-density Parity Check (LDPC) support for
improved range and power efficiency.
Supports standard SDIO v2.0 host interface.
Supports Space-Time Block Coding (STBC) in the receiver.
Integrated ARM Cortex-M3 processor and on-chip memory for
complete WLAN subsystem functionality, minimizing the need
to wake up the applications processor for standard WLAN
functions. This allows for further minimization of power
consumption, while maintaining the ability to field-upgrade with
future features. On-chip memory includes 512 KB SRAM and
640 KB ROM.
OneDriver™ software architecture for easy migration from
existing embedded WLAN and Bluetooth devices as well as to
future devices.
Bluetooth Features
Complies with Bluetooth Core Specification Version 4.1 with
provisions for supporting future specifications.
Bluetooth Class 1 or Class 2 transmitter operation.
Supports extended Synchronous Connections (eSCO), for
enhanced voice quality by allowing for retransmission of
dropped packets.
Adaptive Frequency Hopping (AFH) for reducing radio
frequency interference.
Interface support — Host Controller Interface (HCI) using a
high-speed UART interface and PCM for audio data.
Low-power consumption improves battery life of handheld
devices.
Supports multiple simultaneous Advanced Audio Distribution
Profiles (A2DP) for stereo sound.
Automatic frequency detection for standard crystal and TCXO
values.
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 002-14797 Rev. *I
• San Jose, CA 95134-1709 • 408-943-2600
Revised March 28, 2017


Cypress Semiconductor Electronic Components Datasheet

CYW4343W Datasheet

Single-Chip 802.11 b/g/n MAC/Baseband/Radio

No Preview Available !

CYW4343W
General Features
Supports a battery voltage range from 3.0V to 4.8V with an
internal switching regulator.
Programmable dynamic power management.
4 Kbit One-Time Programmable (OTP) memory for storing
board parameters.
Can be routed on low-cost 1 x 1 PCB stack-ups.
74-ball[4343W+43CS4343W1]74-ball 63-ball WLBGA
package (4.87 mm × 2.87 mm, 0.4 mm pitch).
153-bump WLCSP package (115 μm bump diameter, 180 μm
bump pitch).
Security:
WPA and WPA2 (Personal) support for powerful encryption
and authentication.
AES in WLAN hardware for faster data encryption and IEEE
802.11i compatibility.
Reference WLAN subsystem provides Cisco Compatible Ex-
tensions (CCX, CCX 2.0, CCX 3.0, CCX 4.0, CCX 5.0).
Reference WLAN subsystem provides Wi–Fi Protected Set-
up (WPS).
Worldwide regulatory support: Global products supported with
worldwide homologated design.
Figure 1. CYW4343W System Block Diagram
WLAN
Host I/F
Bluetooth
Host I/F
WL_REG_ON
WL_IRQ
SDIO
CLK_REQ
BT_REG_ON
PCM
BT_DEV_WAKE
BT_HOST_WAKE
UART
VDDIO VBAT
CYW4343W
2.4 GHz WLAN +
Bluetooth TX/RX
BPF
Document Number: 002-14797 Rev. *I
Page 2 of 103


Part Number CYW4343W
Description Single-Chip 802.11 b/g/n MAC/Baseband/Radio
Maker Cypress Semiconductor
Total Page 30 Pages
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