BCM4356 datasheet(2/155 Pages) CYPRESS

2 / 155 page

Document Number: 002-15053 Rev. *D

Page 2 of 155

ADVANCE

CYW4356

Figure 1. Functional Block Diagram

‘

Features

IEEE 802.11X Key Features

■ IEEE 802.11ac Draft compliant.

■ Dual-stream spatial multiplexing up to

867 Mbps data rate.

■ Supports 20, 40, and 80 MHz channels with optional SGI (256

QAM modulation).

■ Full IEEE 802.11a/b/g/n legacy compatibility with enhanced

performance.

■ TX and RX low-density parity check (LDPC) support for

improved range and power efficiency.

■ Supports IEEE 802.11ac/n beamforming.

■ On-chip power amplifiers and low-noise amplifiers for both

bands.

■ Supports various RF front-end architectures including:

❐ Two antennas with one each dedicated to Bluetooth and

WLAN.

❐ Two antennas with WLAN diversity and a shared Bluetooth

antenna.

■ Shared Bluetooth and WLAN receive signal path eliminates

the need for an external power splitter while maintaining

excellent sensitivity for both Bluetooth and WLAN.

■ Internal fractional nPLL allows support for a wide range of

reference clock frequencies.

■ Supports IEEE 802.15.2 external coexistence interface to

optimize bandwidth utilization with other co-located wireless

technologies such as LTE or GPS.

■ Supports standard SDIO v3.0 (up to SDR104 mode at

208 MHz, 4-bit and 1-bit) host interfaces.

■ Backward compatible with SDIO v2.0 host interfaces.

■ PCIe mode complies with PCI Express base specification

revision 3.0 for ×1 lane and power management running at

Gen1 speeds.

■ Supports Active State Power Management (ASPM).

■ Integrated ARMCR4 processor with tightly coupled 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 768 KB SRAM and

640 KB ROM.

■ OneDriver™ software architecture for easy migration from

existing embedded WLAN and Bluetooth devices as well as

future devices.

■ Supports A4WP wireless charging with the BCM59350.

T/R Switch

Diplexer

VIO

VBAT

5G WLAN

2G WLAN

FM Rx

CYW4356

WLAN

Host I/F

Bluetooth Host I/F

FM Rx Host I/F

WL_REG_ON

SDIO

PCIe

BT_REG_ON

UART

BT_DEV_WAKE

BT_HOST_WAKE

CLK_REQ

FM Audio Out

PCM

COEX

External

Coexistence I/F

FM I/F

USB 2.0

2.G WL/BT Rx

BT Tx

T/R Switch

5G WLAN

T/R Switch

3PST Switch

2G WLAN Tx

Ant1

Diplexer

Ant0

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