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a ? b? ? 57f68 ? v1' 31? 7????l{? ? . {? ^??'r q ?8 2l. {z? v? csr bluecore5 ??1 v4 ?{?y??? 8??a? b 57f68 ? v? ?z?z t z?o31 v???y ? ?o v[ y?1 lc{ l. {z sl{ b =? 5 ? v?1? ?{ . { v[zl1?3:'7 m pda ? ? ?? ? !!m ? lc{ l. { b ? ?{y ? ? ?8 29 ? ?4? ? ?l. {{? ???? ? ?| 57f68 ?? bluetooth v2.1+edr ??z t gfsk, 1mbps, 0.5bt gaussian a battery voltage vdd:3.3 supply |? ?xl opp,obex,spp,a2dp, avrcp ,ftp ,hs/hf,dun profiles yt @ ? 30ma ? @ <0.4ma ?s? -40 o c to +80 o c l. {s? 10 . {? q class2 4dbm 2 -80dbm@0.1%ber ? qs? 2.4ghz-2.480ghz ? g pio, spi speake microphone {??? high acoustic fidelity sound {??.1 ? 75db >? ? 0.01% vj 25.01x21.02x1.8mm peng'r tel:13590282537 0755-83611011 qq:1825598678 website:www.chenbingdom.com CSR57F68 free datasheet http:/// ------------------------------------------------------------------------------------------------------------------------------- -------------- 1 a vjm ? a v??lm free datasheet http:/// ------------------------------------------------------------------------------------------------------------------------------- -------------- b a???? a pin symb i/o description 1 pio1 bi-directional tx en 2 pio2 bi-directional speaker output positive (left side) 3 vol+ bi-directional speaker output negative (right side) 4 vol- bi-directional speaker output positive (right side) 5 up bi-directional ground 6 down bi-directional programmable input/output line 7 power bi-directional programmable input/output line 8 +1.8v power +1.8v supply 9 gnd bi-directional programmable input/output line 10 bat battery terminal+ve 3.3-4.2v 11 led1 cmos input synchronous data input 12 led2 pen drain output synchronous data sync 13 mic pen drain output synchronous data clock 14 spbn analogue output speaker output l negative 15 spbp analogue output speaker output l positive 16 span analogue output speaker output r nositive 17 spap analogue output speaker output r positive 18 gnd gnd ground 19 mosi cmos input with weak internal pull-down serial peripheral interface data input 20 clk cmos input with weak internal pull-down serial peripheral interface clock 21 cs# cmos input with weak internal pull-down chip select for serial peripheral interface, active low 22 miso cmos input with weak internal pull-down serial peripheral interface data output 23 rts cmosoutput,tri-state,with week pull-up uart request to send active low 24 vdd-chg charger input lithium iion/polymer battery free datasheet http:/// ------------------------------------------------------------------------------------------------------------------------------- -------------- tyt t 1 vy 3.0v--------4.5v 2 ? power o 7? h led1 ??bq" ???a led2 ?t?at ? ? !!?? qv 5 ebqv u vyt ? v 2 e?b q b 3 v 7 h??1? ? bq ? ? !! 10 e= ? ? q !!| ? ?at?c q ? ? !!?1? ? b 4 7 ?/? power o? h led1 ??bq" ???1 ?? h ??? |