Device Details
Bluetooth low energy
Physical Interfaces
â– Dual-mode Bluetooth low energy radio
â– UART interface for debug
â– Support for Bluetooth basic rate / EDR and low
â– USB 2.0 (full-speed) interface, including charger
energy connections
enumeration
â– 3 Bluetooth low energy connections at the same â– 1-bit SPI flash memory interface
time as basic rate A2DP
â– SPI interface for debug and programming
13 Bluetooth Radio
■I²C interface for EEPROM
20 ■On-chip balun (50Ω impedance)
â– Up to 20 general purpose PIOs with 3 extra open-
16, â– No production trimming of external components
drain PIOs available when LED not used
er â– Bluetooth v4.0 specification compliant
■PCM and I²S (only in HCI mode) interfaces
mb Bluetooth Transmitter
te â– 8dBm (typ) RF transmit power with level control
â– 3 LED drivers (includes RGB) with PWM flasher
independent of MCU
ep â– Class 1, Class 2 and Class 3 support, no external Integrated Power Control and Regulation
y, S PA or TX/RX switch required
â– Automatic power switching to charger when present
da Bluetooth Receiver
â– 2 high-efficiency switch-mode regulators with 1.8V
- Mon â–
-91dBm (typ) π/4 DQPSK receiver sensitivity and
-81dBm (typ) 8DPSK receiver sensitivity
â–
and 1.35V outputs direct from battery supply
3.3V linear regulator for USB supply
n â– Integrated channel filters
â– Low-voltage linear regulator for internal digital
.com.c â–
Digital demodulator for improved sensitivity and co-
channel rejection
â–
circuits
Low-voltage linear regulator for internal analogue
m â– Real-time digitised RSSI available to application
circuits
om â– Fast AGC for enhanced dynamic range
hec â– Channel classification for AFH
â– Power-on-reset detects low supply voltage
â– Power management includes digital shutdown and
wake-up commands for ultra-low power modes
ac Bluetooth Synthesiser
Battery Charger
ap â– Fully integrated synthesiser requires no external
- VCO, varactor diode, resonator or loop filter
â– Lithium ion / Lithium polymer battery charger
sao â– Compatible with crystals 16MHz to 32MHz
â– Instant-on function automatically selects the power
supply between battery and USB, which enables
s T Kalimba DSP
operation even if the battery is fully discharged
me â– Enhanced Kalimba DSP coprocessor, 80MIPS,
â– Fast charging support up to 200mA with no external
ja 24‑bit fixed point core
components. Higher charge currents using external
for â– 2 single-cycle MACs; 24 x 24-bit multiply and 56-bit
pass device.
d accumulator
â– Supports USB charger detection
are â– 32-bit instruction word, dual 24-bit data memory â– Support for thermistor protection of battery pack
ep â– 6K x 32-bit program RAM including 1K instruction â– Support to enable end product design to PSE law:
Pr cache for executing out of internal ROM
â– Design to JIS-C 8712/8714 (batteries)
â– 16K x 24-bit + 16K x 24-bit 2-bank data RAM
â– Testing based on IEEE 1725
Audio Interfaces
Baseband and Software
â– Stereo line input audio ADC with 1-mic CVC
â– Internal ROM
â– Mono audio DAC
â– Memory protection unit supporting accelerated VM
â–
Supported sample rates of 8, 11.025, 16, 22.05, 32, â–
44.1, 48 and 96kHz (DAC only)
56KB internal RAM, enables full-speed data
transfer, and full piconet support
Auxiliary Features
â– Logic for forward error correction, header error
â– Crystal oscillator with built-in digital trimming
control, access code correlation, CRC,
Package Option
demodulation, encryption bit stream generation,
â– 68-lead QFN 8 x 8 x 0.9mm 0.4mm pitch
whitening and transmit pulse shaping
Pre-production Information
© Cambridge Silicon Radio Limited 2013
Confidential Information - This Material is Subject to CSR's Non-disclosure Agreement
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