BCM4325
Preliminary Data Sheet
6/30/09
FEATURES
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Security
General Features
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WPA™ and WPA2™ (Personal) support for powerful
encryption and authentication
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Supports a battery voltage ranging from 2.3V to
5.5V with the internal buck-boost switching
regulator
AES and TKIP acceleration hardware for faster data
encryption and 802.11i compatibility
Cisco® Compatible Extension—(CCX, CCX 2.0, CCX 3.0,
CCX 4.0) certified
SecureEasySetup™ for simple Wi-Fi® setup and WPA2/
WPA security configuration
Low power consumption and dynamic power
management maximize battery life of handheld
devices
Five LDO regulators and two switching regulators
with an on-chip, programmable power
management unit
Wi-Fi Protected Setup (WPS)
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Supports IEEE 802.11d, e (WMM, QoS, WMM-PS), h, i, j (k, r,
and w in the future)
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Integrated CMOS power amplifiers deliver greater
than 20 dBm of linear output power
Worldwide regulatory support – Global products supported
with worldwide homologated design
Supports a single 2.4 GHz antenna shared
between WLAN and Bluetooth
Bluetooth Features
Internal fractional nPLL allows support for a wide
range of reference clock frequencies.
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Bluetooth Core specification 3.0 + HS compliant when
combined with Bluetooth 3.0 + HS qualified host software,
including Alternate MAC/PHY, read encryption key size,
enhanced power control, and unicast connectionless data.
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2k-bit OTP for storing board parameters
196-ball flip-chip FBGA package (7.5 mm x
7.5 mm x 1.05 mm, 0.5 mm pitch) and 339-pin
WLCSP package (6.51 mm x 5.81 mm x 0.42 mm,
0.25 mm pitch). Dimensions are nominal, see
Figure 35 on page 115 and Figure 36 on page 116
for maximum dimensions)
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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
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Provides an ultra-small form-factor solution and
ultra low-power consumption to support low-cost
requirements
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Bluetooth Class 1 support with PA bias adjust
Interface support—Host Controller Interface (HCI) using a
high-speed UART interface and PCM for audio data
IEEE 802.11x Features
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Integrates the InConcert collaborative WLAN coexistence,
including the 802.15.2 3-wire coexistence support
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Single-band 2.4 GHz 802.11 b/g or dual-band
2.4 GHz and 5 GHz 802.11 a/b/g pin-compatible
options
Supports dual Advanced Audio Distribution Profile (A2DP) for
stereo sound
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Integrated WLAN CMOS power amplifiers deliver
greater than 20 dBm of linear output power.
Automatic frequency detection for standard crystal and TCXO
values
Provides
external
coexistence handshake
interface to support additional wireless
technologies such as GPS, WiMax, or UWB
Embedded ARM7 RISC processor and on-chip memory
FM Radio Features
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Supports SDIO v1.2 (4-bit and 1-bit) and SPI, with
SDIO clock speeds up to 50 MHz
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FM receiver
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76 MHz to 108 MHz FM bands
Integrated ARM7® RISC 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
capability to field upgrade with future features.
European Radio Data Systems (RDS) and
North American Radio Broadcast Data System (RBDS)
modulation support
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I2C-compatible BSC communications support
Stereo analog output
I2S and PCM interfaces
Broadcom Corporation
Page ii
Document 4325-DS04-R
CYPRESS [ CYPRESS ]
