Description

The BCM4331KML1G P21 is a single-chip device designed and manufactured by Broadcom. It is part of the IC Chips category and provides a range of features for wireless systems, including IEEE 802.11a/b/g/n, Bluetooth 4.0 + HS, and FM radio receiver and transmitter. Designed to address the needs of highly mobile devices,  it offers minimal power consumption and compact size. This model has advanced design techniques and process technology to reduce active and idle power.

Specifications and features

The Broadcom BCM4331KML1G P21 offers the following features:

IEEE 802.11a/b/g/n Key Features

• Single-band 2.4 GHz 802.11 b/g/n or dual band 2.4 GHz and 5 GHz 802.11 a/b/g/n
• Single stream 802.11n support for 20 MHz channels
• Integrated CMOS power amplifiers with closed-loop power control
• PAs can be powered directly from VBAT
• Up to 8 RF control signals available
• One 2.4 GHz antenna shared between WLAN and Bluetooth
• Internal fractional nPLL for a wide range of reference clock frequencies
• Supports IEEE 802.15.2 external three-wire coexistence scheme
• Supports standard SDIO v2.0 and gSPI host interfaces. Alternative host interface supports HSIC
• Integrated ARM Cortex-M3 processor
• OneDriver software architecture for an easy migration from existing embedded WLAN and Bluetooth devices, as well as future devices

Bluetooth and FM Key Features

• Bluetooth Core Specification Version 4.0 + HS compliant with provisions for supporting future specifications
• Bluetooth Class 1 or Class 2 transmitter operation
• Supports extended Synchronous Connections (eSCO)
• Adaptive Frequency Hopping (AFH)
• FM unit supports HCI for communication, stereo analog input and output
• Low-power consumption for improved battery life of handheld devices
• FM receiver: 65 MHz to 108 MHz FM bands, supports European and North American radio data systems standards
• Supports multiple simultaneous Advanced Audio Distribution Profiles (A2DP) for stereo sound
• Automatic frequency detection for standard crystal and TCXO values
• FM transmitter: 65 MHz to 108 MHz bands, supports RDS and programmable output power

General Features

• Supports battery voltage range from 2.3V to 4.8V
• Programmable dynamic power management
• 2Kbit OTP for storing board parameters
• Package options: 144 ball FCFBGA, 133 ball WLBGA, and 225 bump WLCSP
• Security: WPA and WPA2 (Personal) support, AES and TKIP in hardware
• Reference WLAN subsystem provides Cisco Compatible Extension- (CCX,
• CCX 2.0, CCX 3.0, CCX 4.0, CCX 5.0) certified - Reference WLAN subsystem provides Wi-Fi Protected Setup (WPS)
• Worldwide regulatory support: Global products supported with worldwide homologated design

Application Scenarios

The BCM4331KML1G P21 is commonly used in handheld devices that require minimal power consumption, compact size, and wireless connectivity. It is ideal for mobile applications and devices that need reliable wireless connectivity while maximizing battery life.

Comparison

• Provides a range of features for wireless systems, including IEEE 802.11a/b/g/n, Bluetooth 4.0 + HS, and FM radio receiver and transmitter
• Designed to address the needs of highly mobile devices with minimal power consumption and compact size
• Offers advanced design techniques and process technology to reduce active and idle power
• Low-power consumption for improved battery life of handheld devices
• Security features include WPA and WPA2 (Personal) support, AES, and TKIP in hardware
• Reference WLAN subsystem provides Cisco Compatible Extension- (CCX, CCX 2.0, CCX 3.0, CCX 4.0, CCX 5.0) certified and Wi-Fi Protected Setup (WPS)

• The device does not support simultaneous dual-band Wi-Fi
• External power amplifiers are required for higher output power applications
• Does not support an external GPU, which may impact graphics-intensive applications