User Manual

CONFIDENTIAL
© 2000~2011 iSSC Technologies Corp.
5
2. Product Specification
2.1. Chipset
7x7 mm
2
48 pin QFN IS1657NM
2.2. Interfaces
- Multi function GPIO interface
- Bluetooth RF interface
- HCI over URAT up to 921600 bps
- I2C for external EEPROM and authentication chip
- 2/4 wires SPI interface (master/slave) for external peripherals control. (Optional)
2.3. Hardware Design Considerations
- Power
The module requires either a 3.3V or 5V supply voltage. (3.3V was suggested)
- Power ramp-up timing restriction
1) BAT_IN : ramp-up (0 to 1.6V) < 200ms
2) PMULDO_O : PMU-logic ramp-up (0 to 1.6V) <60ms
3) VCC_RF (1.8V power domain) : RF BPOR ramp-up (0 to 1.6V) < 20ms
- Power on sequence
1) BAT_IN/ BAT_IN_5V: must be first!
2) 3.3V power domain: VDD_IO/ VDD_FIO must power-up early than 1.8V power.
3) 1.8V power domain: 1V8/ VCC_RF/ VDD_XO/ 1V8_U_P
4) RST_N: digital reset released from 0 to 1.6V must be the last one.
- Recommended operating conditions
Rating Min Typ Max
VDD_IO_x, 3.2V 3.63V
SW_BTN 3.2V 4.3V
BAT_IN 3.2V 4.3V
- Clock Sources
A high accuracy crystal with ±10ppm tolerance is connected to the BM57SPPSyC2 clock input pins.
- Serial Flash and Firmware Version
Firmware code is stored on chip internal flash.
- Radio Characteristics
Bluetooth V3.0 + EDR
Frequency Band: 2402-2480 GHz
Number of Channels: 79 1MHz channels