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bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 1.15 BTM98-8AA data sheet 22 june 2012 version 1.0 shenzhen ttk technology co.,ltd. copyright ? ttk technologies. all rights reserved. http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 2.15 table of contents 1.0 block diagram......................................................................................................5 2.0 electrical characteristics......................................................................................6 3.0 device terminal functions...................................................................................8 4.0 example application schematic.........................................................................12 5.0 package dimensions...........................................................................................12 6.0 layout guidelines...............................................................................................14 7.0 contact information............................................................................................15 http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 3.15 description: features: BTM98-8AA is the latest generation of bluetooth plug n' play bluetooth solution for mono module. it provides highest level of integration and stereo audio solutions with integrated 2.4ghz radio, dsp, battery integrated dsp, stereo codec , and battery charger, stereo codec, and antenna ready. charger mono and stereo audio applications. integrated antenna BTM98-8AA is also ready to support the latest bluetooth 4.0 compliant bluetooth 4.0 standard and support for secure class ii range up to 10 meters simple pairing. temperature range from - 30c to +85c low power consumption supported bluetooth profiles: a2dp, avrcp, hfp, hsp supported 5-band eq high- quality audio 95db snr on dac playback applications: high quality wireless stereo headsets wireless mono headsets wireless speakers hands-free car kits http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 4.15 revision history version comment custom date 1.0 preliminary datasheet zuoguoqiang 06/2012 http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 5.15 1.0 block diagram charger in 5v battery 3.6v-4.2v figure 1 : block diagram of BTM98-8AA 2.4ghz radio mcu rom kalimba dsp ram i/o xtal spi/i2c usb audio in/out pio debug spi serial flash/ eeprom pm/char ger http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 6.15 2.0 electrical characteristics recommended operating conditions min typ max unit operating temperature -20 20 70 vdd_bat 3.0 3.8 4.2 v vdd_chg 4.5 5 6.5 v vdd_io 1.7 1.8 1.95 v table 1 :recommended operating conditions battery charger charger mode(bat_p rising to 4.2v) min typ max unit supply current(a) -- 4.5 6 ma battery trickle charge current(b) -- 4 -- ma headroom(e) > 0.7v -- 200 -- ma maximum battery fast charge current (i-ctrl = 15)(c) (d) headroom = 0.3v -- 150 -- ma headroom > 0.7v -- 40 -- ma minimum battery fast charge current (i-ctrl = 0)(c) (d) headroom = 0.3v -- 35 -- ma http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 7.15 trickle charge voltage threshold -- 2.9 -- v float voltage (with correct trim value set), vfloat (f) 4.10 4.15 4.2 v float voltage trim step size(f) -- 50 -- mv battery charge termination current, % of fast charge current 5 10 20 % (a) current into vdd_chg does not include current delivered to battery (ivdd_chg - ibat_p) (b) bat_p < trickle charge voltage threshold (c) charge current can be set in 16 equally spaced steps (d) trickle charge threshold < bat_p < float voltage (e) where headroom = vdd_chg - bat_p (f) float voltage can be adjusted in 15 steps. trim setting is determined in production test and must be loaded into the battery charger by firmware during boot-up sequence table 2: battery charger characteristics reset min typ max unit v th,res threshold voltage 0.65 0.85 1.50 v r ires input resistance -- 220 -- k c ires input capacitance -- 220 -- nf table 3: reset terminal characteristics http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 8.15 the reset pin is an active low reset and is internally filtered using the internal low frequency clock oscillator. a reset will be performed between 1.5 and 4.0ms following reset being active. it is recommended that reset be applied for a period greater than 5ms.BTM98-8AA has an internal reset circuitry ,when BTM98-8AA input 5v charging voltage, module reset once. the capacitor discharges through 220 k resistor, which eventually deactivates the reset. time constant of the rc circuitry is set in a way that the supply voltage is safely stabilized before the reset deactivates. figure 2 : BTM98-8AA reset circuitry http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 9.15 mute BTM98-8AA can output a high level to control the amplifier mute. when bluetooth normal working, module output high level to control the amplifier open. standby, module output low level to control the amplifier off. figure 3 : BTM98-8AA mute contorl circuitry http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 10.15 .3.device terminal functions lead name function description 1 gnd gnd ground 2 p io[ 2 0] pio port p rogrammable input/output line 3 pio[ 19 ] pio port p rogrammable input/output line 4 pio[ 18 ] pio port p rogrammable input/output line 5 pio[ 21 ] pio port p rogrammable input/output li ne 6 pio[ 0 ] pio port p rogrammable input/output line 7 pio[1 6 ] pio port p rogrammable input/output line 8 mosi spi interface spi data input 9 clk spi interface spi clock 10 csb spi interface c hip select for spi 11 miso spi interface spi data output 12 spi_n nc nc http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 11.15 13 led[0] s tatus led driver 14 led[1] s tatus led driver 15 vdd vdd nc 16 rst r eset logic low reset 17 led[2] s tatus led driver 18 m_io[ 3 ] m_io[ 3 ] io 19 m_io[2] m_io[2] io 20 m_io[ 1 ] m_io[ 1 ] io 21 m_io[4] m_io[4] io 22 1v8 1.8v power positive supply for 1.8v regulated output 23 vreg power on/off m oudle power on/off active high 24 5v 5v - charger l ithium ion/polymer battery charger input 25 vbat p ower input lithium ion/polymer battery positive 26 gnd gnd ground 27 dn dn usb data negative 28 dp dp usb data positive 29 mic_bias mic power microphone bias 30 micb_ n micb_ n mic input, channel b negative 31 micb_ p micb_ p mic input, channel b positive 32 mica_ n mica_ n mic input, channel a negative 33 mica_ p mica_ p mic input, channel a positive 34 agnd agnd a nalogue ground 35 r - r - speaker output, channel r negative 36 r+ r+ speaker output, channel r positive 37 l - l - speaker output, channel l negative 38 l+ l+ speaker output, channel l positive 39 pio[1] mute amp lifier mute pin 40 gnd gnd ground http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 12.15 4.0 example application schematic http://www..net/ datasheet pdf - http://www..net/
2011.07.15 0a zuoguoqiang data: checked by: title: drawn by: approved by: data: data: product no: ly no: scale: rev no: size: sheet: 1/1 a4 1/1 electronic co; ltd zuoguoqiang BTM98-8AA vol+ fwd vol- rev play mic_a power on/off (mfb) reset key 5 vcc 4 d- 3 d+ 1 gnd 2 id 6 7 8 9 jk1 c6 106 b2 3.7v600ma tp2 tp3 tp4 tp5 tp6 led4 led-red led5 led-blue r1 2.2k r2 2.2k led6 led-green r3 2.2k sw2 sw3 sw4 sw5 sw7 r4 10k r5 10k r6 10k r10 10k r11 10k l4 500r/100m l7 500r/100m r19 2.2r c7 106 c8 104 sw9 r20 2.2k c13 106 c14 104 c15 104 r21 2.2k l8 15nh c16 104 r22 1k tp7 mic+ tp8 mic- c17 15p c18 15p l9 500r/100m 1 gnd 2 pio[20] 3 pio[19] 4 pio[18] 5 pio[21] 7 pio[16 8 mosi 9 clk 10 csb 11 miso 12 s_n 13 led[0] 14 led[1] 40 gnd 38 l+ 37 l- 36 r+ 35 r- 34 agnd 33 mica_p 32 mica_n 31 micb_p 30 micb_n 29 mic_bias 28 dp 27 dn 26 gnd 25 bat_in 24 5v 23 vreg 22 1v8 21 m_io4 20 m_io1 19 m_io2 18 m_io3 17 led[2] 16 rst 15 vcc 6 pio[0] 39 pio[1] u3 BTM98-8AA 8 r_in_n 7 r_in_p 4 c1n 2 c1p 16 shdn 15 l_in_p 14 l_in_n 12 lout 9 svdd 13 svdd 6 sgnd 17 pad 5 pvss 11 svss 10 rout 1 pvdd 3 pgnd u4 sg2012 c21 104 c22 104 c23 104 c24 104 r24 2.2k r25 2.2k r26 2.2k r27 2.2k r28 2.2k r29 2.2k c25 104 c26 104 c27 104 c28 104 c30 104 c31 104 c32 104 1 2 4 3 j2 3.5phonejack r30 2.2k c33 104 r31 2.2k c34 104 r23 1k l10 500r/100m c19 476 c20 106 c35 105 c36 103 sw13 r32 10k c37 104 5v dp dn dn dp vbat led2 led2 1v8 vbat vbat 5v 1v8 mfb mic_bias mica_p mica_n mic_bias mica_n mica_p mfb am_5v am_5v l_out r_out r_out l_out sd sd am_5v 1v8 http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 13.15 5.0 package dimensions unit: mm http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 14.15 6.0 layout guidelines 6.0.1 audio layout route audio lines as differential pairs. the positive and negative signals should run parallel and close to each other until they are converted to single-ended signals. use dedicated audio ground plane for entire audio section. 6.0.2 antenna design do not place gnd plane or any metal directly under the antenna of btm-68d. to avoid any excess parasitic capacitance in the antenna feed line caused by the rf test pin on the bottom side of the module, the area underneath the rf test pin should also be left free from copper. any metal in close proximity of the antenna will have an effect on the antenna performance. thus any metal should be placed as far from the antenna as possible. the module should be placed to an edge of the pcb. http://www..net/ datasheet pdf - http://www..net/
bluetooth audio module BTM98-8AA shenzhen ttk technology co.,ltd tel 0755-89484041 fax 0755-89484040 15.15 7.0 contact information sales : ttk@szttk.com technical support: zuogq@szttk.com ; zhangl@szttk.com address: 8th floor,southland building,minzhi hongshan , mei long road, long hua town, bao'an district,shenzhen website: www.szttk.com http://www..net/ datasheet pdf - http://www..net/

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