RN-21 Roving Networks Inc, RN-21 Datasheet
RN-21
Specifications of RN-21
Related parts for RN-21
RN-21 Summary of contents
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... Bluetooth specific hardware and software. Crystal CSR BlueCore-04 External BALUN PA Flash Memory • Tel (408) 395-6539 RN-21 DS-RN21-V2 3/25/2010 VCC GND PIO4 PIO5 PIO6 USB UART PCM • info@RovingNetworks.com ...
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... Tel (408) 395-6539 DS-RN21-V2 3/25/2010 Unit Bluetooth Units dBm ≤ -70 dBm dBm dBm ≤ 15 dBm dBm kHz 75 kHz kHz ≤ 1000 ...
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... Pull up 1.5K when active Input to RN21 with weak pulldown Input to RN21with weak pulldown Output from RN21 Input to RN21 with weak pulldown Input to RN21 with weak pulldown Output from RN21 Output from RN21 Output from RN21 Input to RN21 with weak pulldown Input to RN21 with weak pulldown Input to RN21 with weak pulldown • ...
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... Input logic level LOW Input logic level HIGH Output logc level LOW Output logic level HIGH All I/O’s default to weakpull down Typical Application Circuit 809 University Avenue • Los Gatos, CA 95032 DS-RN21-V2 3/25/2010 Min Typ. Max. -0.4 - +0.8 0.7VDD - VDD+0.4 ...
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... Design Concerns 1. Reset circuit. RN-21 contains a 1k pull-down to GND, the polarity of reset is active HIGH. A power on reset circuit with delay is OPTIONAL on the reset pin of the module. It should only be required if the input power supply has a very slow ramp, or tends to bounce or have instability on power up. ...
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... Ordering Information Part Number RN-21 Standard firmware (SPP/DUN Master and Slave) RN-21-H HCI firmware (HCI over H4 UART) RN-21-U USB firmware (HCI over USB port, slave device at 12Mbps rate) For other configurations, contact Roving Networks directly. Visit http://www.rovingnetworks.com Networks Products. Copyright © 2009 Roving Networks. All rights reserved. ...