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Description of Functional Blocks

RBFS

C921A BT Ass

’

y Module

Rev A,

Feb

2009

LG Innotek

Hanyang Univ. 1271, Sa-dong, Sangrok-gu ,

Ansan-si, Gyeonggi-do 426-791, Korea

Tel:82-31-436-7653

Fax:82-31-436-7991

www.lginnotek.com

COMMERCIAL IN CONFIDENCE

All specification are preliminary and LG Innotek reserves the right to change these without notice.

RBFS-C921A-AN-01-A

Summary of content (9 pages)

PAGE 1
Description of Functional Blocks RBFS-C921A BT Ass’y Module Rev A, Feb 2009 LG Innotek Hanyang Univ. 1271, Sa-dong, Sangrok-gu , Ansan-si, Gyeonggi-do 426-791, Korea Tel:82-31-436-7653 Fax:82-31-436-7991 www.lginnotek.com RBFS-C921A-AN-01-A COMMERCIAL IN CONFIDENCE Copyright ⓒ 2007, LG Innotek Co., Ltd. http:\\www.lginnotek.com All specification are preliminary and LG Innotek reserves the right to change these without notice.
PAGE 2
RBFS-C921A 1. RF Receiver Block 1.1 RF Receiver The receiver features a near-zero Intermediate Frequency (IF) architecture that allows the channel filters to be integrated onto the die. Sufficient out-of-band blocking specification at the Low Noise Amplifier (LNA) input allows the radio to be used in close proximity to Global System for Mobile Communications (GSM) and Wideband Code Division Multiple Access (W-CDMA) cellular phone transmitters without being desensitised.
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RBFS-C921A 2. RF Transmitter Block 2.1 IQ Modulator The transmitter features a direct IQ modulator to minimise the frequency drift during a transmit timeslot, which results in a controlled modulation index. Digital baseband transmit circuitry provides the required spectral shaping. 2.2 Power Amplifier The internal Power Amplifier (PA) has a maximum output power of +6dBm. This allows Bluetooth Main Chipset to be used in Class 2 and Class 3 radios without an external RF PA.
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RBFS-C921A 3. RF Synthesiser The radio synthesiser is fully integrated onto the die with no requirement for an external Voltage Controlled Oscillator (VCO) screening can, varactor tuning diodes, LC resonators or loop filter. The synthesiser is guaranteed to lock in sufficient time across the guaranteed temperature range to meet the Bluetooth v2.0 + EDR specification. 4. Power Control and Regulation Bluetooth Module contains two linear regulators. The high-voltage regulator generates a 1.
PAGE 5
RBFS-C921A 6. USB This is a full speed Universal Serial Bus (USB) interface for communicating with other compatible digital devices. Bluetooth Module(U1) acts as a USB peripheral, responding to requests from a master host controller such as a PC. 7. 802.11 Co-Existence Interface Dedicated hardware is provided to implement a variety of 802.11 (Wi-Fi) co-existence schemes. Channel skipping AFH, priority signalling, channel signalling and host passing of channel instructions are all supported.
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RBFS-C921A 8. Memory Interface The SDRAM is a quad-bank DRAM that operates at 1.8V or 2.5V and includes a synchronous interface (all signals are registered on the positive edge of the clock signal, CLK ). Read and write accesses accesses to the SDRAM are burst oriented; accesses start at a selected location and continue for a programmed number of locations in a programmed sequence.
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RBFS-C921A RECORD OF CHANGES Revision No. Date Description A Feb.
PAGE 8
RBFS-C921A Contact for Support Name : inpyo Park E-mail : ippark@lginnotek.
PAGE 9
■ RRBFSBFS-C921A FCC compliance Information This device complies with part 15 of FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference received. 2. This device must accept any interference received. Including interference that may cause undesired operation. FCC WARNING This equipment may generate or use radio frequency energy.