BM57SPP05双模蓝牙

●Introduction
The ISSC BM57SPP05Bluetooth module is design for Bluetooth standard SPP/ BLE electronic accessories via Bluetooth connectivity. 
It is available in the 2.4GHz ISM band Class 2 Radio, compatible with Bluetooth Core Specification Version 3.0/ 4.0 + EDR.
ISSC IS1677NM single chip solution combines transceiver and baseband function to decrease the external components. 
It narrows down the module size and minimizes its cost.
The optimized power design minimize power consumption to keep low battery.

● Feature
- Bluetooth 3.0/ 4.0+ EDR compliant
- Low power 1.8V RF operation
- RF transmitter output power Class 2
- RF receiver GFSK typical -90dBm, π/4 PSK typical -90dBm, 8DPSK typical -83dBm, BLE typical -92dBm
- Internal ROM and 4Mibts of flash
- I2C for external EEPROM
- 1 LED driver

●Current Consumption
Class BR/ EDR
Operation Mode	Peak
Current	AVG
Current	Unit	Note
Peak current at TX mode	48.82		mA	
Peak current at RX mode	44.76		mA	
Deep power down mode		0.37	mA	
Connected + Sniff, Master (No data)		2.26	mA	No data was transmitted
Sniff (40 20 4 0)
Connected + Sniff, Master (No data)		0.84	mA	No data was transmitted
Sniff (500 20 4 0)

Connected + Sniff, Slave (No data)
		0.82	mA	No data was transmitted
Sniff (500 20 3 3) iPhone parameters
Data, Master Data		17.35	mA	transmitted at 115200bps
Data, Slave Data		20.04	mA	transmitted at 115200bps





Low Energy
Operation Mode
	AVG Current	Unit	Note
Standby mode (Discoverable & connectable mode	8.477	mA	fast adv interval = 20ms
	3.363	mA	adv interval = 160ms
Deep power down mode	0.371	mA	

Connected (No data)	
0.696	
mA	No data was transmitted connection interval = 500ms, (LE_Connection_Interval_Max =0x0190)
Connected (No data)	1.55	mA	No data was transmitted connection interval = 20ms,
(LE_Connection_Interval_Max = 0x0010)
Connected (transfer data)
	12.688	mA	connection interval = 500ms, (LE_Connection_Interval_Max = 0x0190)
Connected (transfer data)
	16.761	mA	connection interval = 500ms, (LE_Connection_Interval_Max = 0x0010)