BC57E687CGITBE4 查看數據表（PDF） - Unspecified

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BC57E687CGITBE4

BlueCore® 5-Multimedia External Fully Qualified Single-chip Bluetooth® v2.1 + EDR System

Unspecified 

Device Details

1 Device Details

Radio

Kalimba DSP

■ Common TX/RX terminal simplifies external

■ Very low power Kalimba DSP coprocessor,

matching; eliminates external antenna switch

64MIPS, 24-bit fixed point core

■ BIST minimises production test time

■ SBC decode takes approximately 4mW power

■ Bluetooth v2.1 + EDR specification compliant

consumption while streaming music

Transmitter

■ Single-cycle MAC; 24 x 24-bit multiply and 56-bit

accumulator

■ 8dBm RF transmit power with level control from on- ■ 32-bit instruction word, dual 24-bit data memory

chip 6-bit DAC over a dynamic range >30dB

■ 6K x 32-bit program RAM, 16K x 24-bit + 12K x 24-

■ Class 2 and Class 3 support without the need for an

bit data RAM

external power amplifier or TX/RX switch

■ 64-word x 32-bit program memory cache when

executing from external flash

Receiver

Stereo Audio Codec

■ Receiver sensitivity of -90dBm

■ Integrated channel filters

■ 16-bit internal stereo codec

■ Digital demodulator for improved sensitivity and co- ■ Dual ADC and DAC for stereo audio

channel rejection

■ Integrated amplifiers for driving 16Ω speakers; no

■ Real-time digitised RSSI available on HCI interface

need for external components

■ Fast AGC for enhanced dynamic range

■ Support for single-ended speaker termination and

line output

Synthesiser

■ Integrated low-noise microphone bias

■ Fully integrated synthesiser requires no external

VCO, varactor diode, resonator or loop filter

■ Compatible with crystals 16MHz to 26MHz or an

external clock 12MHz to 52MHz

■ ADC sample rates are 8, 11.025, 16, 22.05, 32 and

44.1kHz

■ DAC sample rates are 8, 11.025, 12, 16, 22.05, 24,

32, 44.1 and 48kHz

■ Accepts 14.40, 15.36, 16.2, 16.8, 19.2, 19.44,

19.68, 19.8 and 38.4MHz TCXO frequencies for

GSM and CDMA devices with sinusoidal or logic

level signals

Auxiliary Features

■ User space on processor for customer applications

■ Crystal oscillator with built-in digital trimming

Baseband and Software

■ Power management includes digital shutdown and

wake-up commands with an integrated low-power

■ 32Mb external flash

oscillator for ultra-low power Park/Sniff/Hold mode

■ 48KB internal RAM, allows full-speed data transfer, ■ Clock request output to control external clock

mixed voice/data and full piconet support

■ On-chip regulators: 1.5V output from 1.8V to 2.7V

■ Logic for forward error correction, header error

control, access code correlation, CRC,

demodulation, encryption bit stream generation,

input and 1.8V output from 2.7V to 4.5V input

■ On-chip high-efficiency switch-mode regulator;

1.8V output from 2.7V to 4.4V input

whitening and transmit pulse shaping

■ Power-on-reset cell detects low supply voltage

■ Transcoders for A-law, µ-law and linear voice from ■ 10-bit ADC and 8-bit DAC available to applications

host and A-law, µ-law and CVSD voice over air

■ On-chip charger for lithium ion/polymer batteries

Physical Interfaces

Bluetooth Stack

■ SPI with clock speeds up to 64MHz in master mode, CSR's Bluetooth Protocol Stack runs on the on-chip

requires firmware support, and 32MHz in slave

MCU in a variety of configurations:

mode

■ Standard HCI, UART or USB

■ I²C master compatible interface

■ Audio codec and echo-noise suppression or

■ UART interface with programmable data rate up to

customer-specific algorithms running on the DSP

3Mbits/s with an optional bypass mode

■ USB v2.0 interface

Package Option

■ Bidirectional serial programmable audio interface ■ TFBGA 169-ball, 8 x 8 x 1.2mm, 0.5mm pitch

supporting PCM, I²S and SPDIF formats

■ 2 LED drivers with faders

CS-121064-DSP4

Production Information

This material is subject to CSR's non-disclosure agreement

© Cambridge Silicon Radio Limited 2006 - 2010

Page 10 of 104

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