EM MICROELECTRONIC - MARIN SA EM9301 Single-Cell Battery Bluetooth low energy controller The on-chip 2.4GHz radio transceiver operates in the 2.400-2.485GHz ISM band and the internal step-up (boost) DC/DC converter allows the application to operate from a single-cell 1.5V battery. This converter is designed to support an extra load such as a low power controller or sensor interface circuit with a dedicated application profile. The EM9301 can also operate without the DC/DC converter, when supplied from a 3 V battery or any other source such as an external LDO regulator. No external coil is needed then. The EM9301 is designed to act as a master or a slave according to the upcoming Bluetooth low energy specification V1.0. It has to be control by an external microcontroller or microprocessor through the standard UART or SPI interface by using HCI commands/events. Any 8, 16 or 32 bit MCU can be used to handle the upper layer Bluetooth low energy profiles as well as application specific tasks. The EM9301 also features a proprietary interface allowing putting it on an extremely low power mode, when the Bluetooth Low Energy RF link is not required. 1) External load reduced to < 500μA MLF24 4x4 package Applications Remote sensing in general Wireless mouse and keyboard Wireless sensors in watches Wireless sports equipment Alarm and security systems Typical Application Schematic VCC2 SW_DCDC VBAT Power Management Host Controller The EM9301 is the first generation of low voltage and low power, fully integrated single-chip Bluetooth low energy controller. It includes the physical layer, linklayer, with an embedded security engine, the Host Controller Interface (HCI), and a powerful power management including a DC-DC up converter. The EM9301 offers performances tailored for extremely low energy operation for power-sensitive applications. The purpose of the EM9301 is to offer a very high level of integration requiring a minimum of external components. BLD function: battery level detection in accordance with selected battery Current consumption (on VCC, VCC =2.1V) 14.5 mA in peak current 10.0 µA in stand-by mode 1) 3.0 µA in sleep-mode (DC/DC) 0.8 µA in power-down mode (no DC/DC) Sensor Description HCI UART/ SPI Test Proprietary Bluetooth low-energy controller 2.4 GHz Bluetooth lowenergy radio ANTP ANTN EM9301 for simplicity, not all supply pins indicated ! External is needed when on-chip DC/DC is used With its high level of flexibility the EM9301 is the best choice for a Bluetooth low energy companion chip. Copyright 2009, EM Microelectronic-Marin SA 9301-FS.doc, Version 1.0, 11/09 XTAL1 XTAL2 AVSS_PLL1 SEL WU/IRQ CTS/CSN TST RxD/SDI AVSS_RF EM 9301 RTS/SCK VDD ANTP ANTN MLF24 4x4 VSS AVSS_PA AVDD_PA VBAT VSS_DCDC BIAS_R TxD/SDO VCC2 Pin Assignment AVSS_PLL2 Single cell 1.5V battery operation Operation down to VBAT = 0.8 V 3 V Lithium battery as alternative Compliant to Bluetooth low energy Specification V1.0 On air data rate 1Mb/s Programmable RF output level: -20 dBm … + 4dBm in 8 steps No antenna matching elements needed through appropriate PCB antenna design 200 Ω differential impedance of antenna port Low-cost 26MHz Xtal Low-power +-500ppm RC oscillator time base VCC1 SW_DCDC Features Wireless and Sensing www.emmicroelectronic.com [email protected]