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| EM MICROELECTRONIC - MARIN SA EM9201/02 World's First Fully Integrated Single-Cell Battery 2.4 GHz Transceiver Description The EM9201/02 is a low-voltage 2.4GHz transceiver IC with built-in link-layer logic permitting proprietary wireless links in the 2.400 ... 2.485 GHz ISM band. It has a radio core with a low-IF architecture and GFSK modulation scheme being compliant with the emerging Bluetooth low energy technology standard. Control of the link-layer logic is possible though the SPI interface using an external host-controller. An FPGA bridge is included in the circuit such that with an external FPGA any protocol compatible with the RF characteristics can also be emulated through the SPI port of the EM9201/02. The EM9201/02 can be operated from a single 1.5V battery by making use of the on-chip step-up (boost) DC/DC converter. This converter is designed to support an extra load such as a low-power microcontroller (host) or sensor interface circuit with a dedicated application profile. The EM9201/02 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. EM9201: up to 1 Mb/s on air data rate EM9202: up to 2 Mb/s on air data rate Chip versions, programmable by metal mask option: V1: with DC/DC converter for 1.5V battery V2: w/o DC/DC converter for any voltages 1.9 - 3.6V Typical Application Schematic Features Single cell 1.5V battery operation (Alkaline AA, AAA) Operation down to VBAT = 0.8 V (for start-up --> 1.0V) 3 V Lithium battery as alternative Bluetooth Low Energy-compliant GFSK modulation Low drift of PLL frequency by design On air data rate: 1Mb/s for EM9201, configurable 1Mb/s or 2Mb/s for EM9202. Programmable RF output level: -20 dBm ... + 4dBm in 8 steps No antenna matching elements needed through appropriate PCB antenna design : 200 differential impedance of antenna port Low-cost 26MHz Xtal BLD function: battery level detection in accordance with selected battery Current consumption (on VCC, VCC =2.1V, 2Mb/s ) 12.5 mA in RX 11.5 mA in TX (0dBm output power) 1) 3.0 A in sleep-mode (DC/DC running on RCosc) 0.8 A in power-down mode (3V version, DC/DC off) 1) External load reduced to < 500A MLF24 4x4 package Applications Remote sensing in general Wireless mouse, keyboard etc. Wireless sensors in watches Wireless sports equipment Alarm and security systems Pin Assignment DATA_FPGA AVSS_PLL1 CK_FPGA SW_DCDC VSS_DCDC VBAT VCC2 XTAL1 XTAL2 CK_FPGA VDD DATA_FPGA Host Controller / Sensor-Interface IRQ AVDD_PA AVSS_PA CS SCK SDI SDO FPGA VSS BIAS_R SDO SDI SCK VDD XTAL2 IRQ XTAL1 CS Sensor EM 9201/02 MLF24 4x4 AVSS_RF ANTP ANTN AVSS_PA AVDD_PA EM9201/02 ANTP ANTN VSS VSS_DCDC SW_DCDC VCC1 BIAS_R Step-up conversion option; for simplicity, not all supply pins indicated ! Copyright (c) 2009, EM Microelectronic-Marin SA Subject to change without notice 05/09 - rev. B Phone: +41.32.755-5111, Fax: +41.32.755-5403 www.emmicroelectronic.com info@emmicroelectronic.com AVSS_PLL2 VCC2 VBAT |
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