美国博通蓝牙4.0BCM20705适配器
1. 简介
Product Type: BT4D01
This documentation describes the engineering requirements specification of BCM20705B0 BT
Module. This module is designed with Standard USB2.0 interface .
2. 产品特性
2.1 Features:
--Bluetooth 4.0+EDR compliant.
--Programmable output power control meets Class1,Class2,or Class3 requirements.
--Use supply voltages up to 5.5V.
--Supports Broadcom SmartAudioTM,wide-band speech,SBC codec,and packet lose concealment.
--Ultra-low power consumption.
--ARMTDMI-STM-based microprocessor with integrated ROM and RAM.
--Supports mobile and PC applications without external memory.
技术规范
3.1 电气特性
1)电源电压(Supply voltage): DC5V(Standard USB2.0 ).
2)Receive current(1Mbps): 31mA(Average current).
3) Transmit current(1Mbps): 44mA(Average current).
4)Receive current(EDR): 32mA(Average current).
5) Transmit current(EDR): 41mA(Average current).
6) 频段(Frequency range): 2402~2480MHz (ISM 频段).
7) 载频间隔: 1MHz
8) 信道数: 79 个(0~78)
9) 接收灵敏度(Sensitivity): ≤-80dBm.
10) 发射功率(Transmission power): 最小-0.5dBm, 典型3dBm.
11)RF 载波频率偏移(Carrier Frequency Stablility ):±24kHz.
12) 射频端阻抗(RF input impedance): 50 ohm.
13) 基带时钟(baseband crystal OSC): 20MHz.
3.2 环境特性
1)工作温度范围(Operation temperature range): -10℃~50℃
2) 储藏温度范围(Storage temperature range): -20℃~+60℃
3.3 参考安全静电等级(25.3℃ 39%RH 1005hPa)
结构尺寸
结构尺寸长*宽*高:21.8mm*14mm*6mm
外壳材质:金属+ABS
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