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| 型号： | CB-OBS411I-04-A |
| 厂商： | ConnectBlue |
| 文件页数： | 30/42页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL OBS411 RS232 |
| 标准包装： | 1 |
| 系列： | CB-OBS |
| 类型： | 收发器，Bluetooth 2.1+EDR |
| 频率： | 2.4GHz |
| 适用于相关产品： | OBS411 |
| 已供物品： | 蓝牙模块 OBS411i-04，RS232 适配器板，USB 电源电缆，串行电缆，CD |
| 其它名称： | 809-1032 |
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connectBlue
10 Application Notes
Usually only a subset of the available functionality is of interest to the designer. In addition, depending on the host system, the electrical
interface can be designed in many ways. The designer can use the step-by-step guide in this chapter as an aid in the design process.
10.1 Step-by-Step Guide
Table 12: Step-by-step guide with Yes and No answers.
Question
Are you going to integrate the OEM
Serial Port Adapter in a metal
enclosure?
Do you wish to use logic level when
communicating with the OEM Serial Port
Adapter?
Do you want to use RS232 as the
physical serial interface?
Do you wish to connect LEDs to the
OEM Serial Port Adapter?
Do you want to detect the status of the
module with a controller?
Do you wish to utilize the restore switch?
Do you wish to utilize the Function
switch ("Connect on external signal")?
Do you want to manually reset the
module?
Yes
Use one of the OEM Serial Ports Adapters with
antenna connector for external antenna
(cB-OBS411x).
See section Logic level Mode for electrical design.
See section External RS232 driver for electrical
design.
See section LED and Switch Design for design
examples for connecting the LEDs.
See section Operating Status for status detection
and section LED and Switch Design for electrical
design.
See section GREEN/Switch-1 for electrical design.
See section Switch-0 Signal for electrical design.
See section Reset for electrical design. Use a
double row connector. See section Double row
No
Go on to next point.
See section External RS232 driver
and External RS422 driver for
electrical design.
Go on to next point.
Go on to next point.
Go on to next point.
Go on to next point.
Go on to next point.
connectors .
10.2 Design Examples
This section contains design examples for all interfaces on J2, J3, and J6. The connector type that suits a specific application depends on
the needed signal and the preferred interface type (board-to-board or SMD).
10.2.1 Logic Levels
10.2.1.1 3.0/3.3 voltage host system
A 3.0/3.3V host system can be connected directly to the logic level pins (BLUE, UART-TxD / UART-RxD etc). A serial 100Ohm resistor
shall be used (see Figure 12) for protection, see the Characteristics section for logic levels characteristics.
10.2.1.2 5 voltage host system
A 5V host system can easily be adjusted to the logic levels.
10.2.1.2.1 Module input signals in a 5V host system
The module input signals can use a resistive divider (1.8kOhm/2.2kOhm) to adjust the levels (See Figure 12). This is applicable for
speeds up to 115.2kBits/s. The divider can be improved by adding a logic buffer (74HCT08) for higher speeds (see Figure 13). The
resistor dividers consume current and a better solution could be to use the 5V input tolerant gates in the LVC family. The LVC gates are
available in singel, dual and quad gates packages (e.g. 74LVC1G08, 74LVC2G08 and 74LVC08). The LVC gates need to be power
supplied with the module signal voltage levels (see Input/Output signals ). The VCC_2V85 pin (see the Pin Description section) can be
used for suppling the interface circuits. Notice that the VCC_2V85 output voltage supply not is available on all connectBlue modules e.g.
if the application is designed to be used with different pin compatible connectBlue modules.
The LVC gates could maybe also be used for output signals if the host input signals are TTL compatible (V IN_HIGH_MIN = 2V). LVC gate
can not be used on 5V CMOS input signals.
Copyright ? 2010 connectBlue AB
Page 30 of 42
相关PDF资料 |
PDF描述 |
|---|---|
| CB-OEMSPA310I-04 | SERIAL PORT ADAPTER OEM 310I |
| CB-OEMSPA331X-04 | SERIAL PORT ADAPTER OEM 331X |
| CB-OEMSPA332X-02 | SERIAL PORT ADAPTER OEM 332X |
| CB-OEMSPA333X-02 | SERIAL PORT ADAPTER OEM 333X |
| CB-OWLAN211GX-02 | MOD OEM WIRELESS LAN 211G X |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CB-OBS411I-04-B | 功能描述:KIT EVAL OBS411 USB RoHS:是 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:CB-OBS 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796 |
| CB-OBS411I-06-0 | 制造商:connectBlue 功能描述:OEM Bluetooth Serial Port Module OBS411 |
| CB-OBS411X-04-0 | 功能描述:BLUETOOTH V2.1+EDR MODULE 4DBM RoHS:是 类别:RF/IF 和 RFID >> RF 收发器 系列:CB-OBS 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:30 系列:- 频率:4.9GHz ~ 5.9GHz 数据传输率 - 最大:54Mbps 调制或协议:* 应用:* 功率 - 输出:-3dBm 灵敏度:- 电源电压:2.7 V ~ 3.6 V 电流 - 接收:* 电流 - 传输:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 工作温度:-25°C ~ 85°C 封装/外壳:68-TQFN 裸露焊盘 包装:管件 |
| CB-OBS414X-06-B | 制造商:connectBlue 功能描述:BLUETOOTH IPHONE ACCESSORY |
| CB-OBS418I-04-0 | 功能描述:RF TXRX MOD BLUETOOTH CHIP ANT 制造商:connectblue 系列:CB-OBS 包装:散装 零件状态:停产 射频系列/标准:蓝牙 协议:蓝牙 2.1，1 类 调制:- 频率:2.4GHz 数据速率:350kbps 功率 - 输出:6dBm 灵敏度:-90dBm 串行接口:UART 天线类型:集成式，芯片 存储容量:- 电压 - 电源:3 V ~ 6 V 电流 - 接收:13mA 电流 - 传输:20mA 安装类型:底座安装 工作温度:-30°C ~ 85°C 封装/外壳:模块 标准包装:1 |
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