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? semiconductor 1/11 msm6688 demo board ? semiconductor msm6688 demo board msm6688 demonstration board board design to msm6596 demonstration board to microcomputer 20-pin flat cable connector mon 20-pin flat cable connector msm6688 ca4, 5 ca0~3 pdmd mcum vds rom rsl1 rsl2 msl1 msl2 sam1 sam2 4/3b del pause sp st rec play power potentiometer off on +5 v gnd power msm6685 mike jack speaker jack condition setting two hex switches and three dip switches are used to set recording conditions. 1. normally, turn on dip switch pdmd. off: the device is automatically turned off except for recording and playback. on : the device is not turned off and is on standby except for recording and playback. 2. turn off dip switch mcum. off: sets up the stand-alone mode. on : sets up the microcomputer interface mode. (note) note: the microcomputer interface mode cannot be set up merely by turing on dip switch mcum. refer to the section of "when usingin microcomputer interface mode" when using this demonstration board in microcomputer interface mode. e2d0071-27-40 this version: jan. 1998 previous version: may. 1997
? semiconductor 2/11 msm6688 demo board 3. use dip switch vds to specify whether to initiate with voice. off: normal mode where recording is not initiated with voice on : voice initiation note: voice initiation requires the use of a regulated power supply instead of a battery. when a battery is used, the voltage variation of several mv during the start of recording is amplified and, thus, results in voice detection. 4. turn off dip switch rom. off: sets up the recording and playback mode. on : sets up the rom playback mode. 5. use dip switches rsl1 and rsl2 to set the number of serial registers to be connected externally. off rsl2 off on on off rsl1 on off on 1 number of serial registers 2 3 4 6. turn on dip switch msl1 and turn off msl2. 7. use dip switches sam1 and sam2 to select the sampling frequency. sam2 sampling frequency f osc /1024 (4.0 khz) sam1 off off f osc /768 (5.3 khz) off on f osc /640 (6.4 khz) on off f osc /512 (8.0 khz) on on * a value in parentheses is applied when f osc is 4.096 mhz. 8. use dip switch 4/3b to select the bit rate. off: 3-bit adpcm on : 4-bit adpcm
? semiconductor 3/11 msm6688 demo board 9. use the hex switch (ca) to select a channel for recording and specify a phrase. ca4, 5 ca0-3 phrase number remarks for deletion of all phrases 0 0 ch 00 0 : : : 1 : : f ch 01 : : ch 0f 1 : : : 0 : : f ch 10 : : ch 1f 2 : : : 0 : : f ch 20 : : ch 2f 3 : : : 0 : : f ch 30 : : ch 3f applicable to recording and playback, and to rom playback (63 phrases) recording 1. turn on the power switch. the led (power) on the demonstration board lights. 2. set hex switches ca4, 5 and ca0-3 at "00". 3. press the del button to delete all phrases. 4. set conditions according to the above condition setting. 5. place the rec/play switch in the rec position to set up the recording mode. 6. press the st button to record voice through the mike. 7. upon the exhaustion of the whole memory capacity, recording is terminated automatically. to suspend recording, press the sp button. note: if the whole memory capacity has been used for recording, the other phrases cannot be recorded.
? semiconductor 4/11 msm6688 demo board playback 1. place the rec/play switch in the play position to set up the playback mode. 2. pressing the st button starts playback. during playback, the led (mon) is lit. 3. the playback of a whole recording results in automatic termination. to suspend playback, press the sp button. 4. the volume of playback can be adjusted by the potentiometer. suspending recording and playback 1. pressing the pause button during recording or playback causes the recording or playback to be suspended. 2. pressing the st button restarts recording and playback.
? semiconductor 5/11 msm6688 demo board circuit diagram ca0~3 hex sw hex sw ca4.5 1 2 4 8 1 2 4 8 rai 100 k w dv dd 1.2 20-pin flat cable connector (for microcomputer interface) 3 4 5 6 7 8 9 11 12 d0 d1 d2 d3 ce rd wr reset mon 19, 20 dgnd ra2 100 k w dip sw pdmd mcum vds rom rsl1 rsl2 msl1 msl2 dip sw dip sw sam1 sam2 4/3b ra2 100 k w ra3 100 k w r?st pec/play r?st st sp pause del r2 100 k w c16 0.1 m f mon 5.1 k w r9 +5 v gnd power on d2 10di + c2 0.1 m f c1 470 m f dv dd av dd r1 5.1 k w power dgnd agnd 1 2 3 4 5 6 9 10 14 15 31 32 33 34 11 12 13 56 55 54 8 7 53 51 52 35 100 k w r10 c4 30 pf 47 48 c3 30 pf x1 4 mhz ca0 ca1 ca2 ca3 ca4 ca5 pdmd mcum vds rom rsel1 rsel2 test test sam1 sam2 4b/ 3b rec/ play st sp pause del reset mon nar pdwn xt xt 30 29 dgnd agnd dv dd c5 0.1 m f 49 21 22 av dd 0.1 m f c8 dv dd dv dd' av dd sadx sas sady tas rwck we di/o drom cs1 cs2 cs3 cs4 sgc sg min mout lin lout amon fin fout adin aout ic1 msm6688 39 36 38 37 50 46 44 45 40 41 42 43 24 23 c13 c14 1 m f1 m f agnd 28 27 c10 51 pf r5 100 k w r4 10 k w + c18 0.47 m f mic line mic agnd c17 0.47 m f r6 10 k w r7 470 k w 26 25 c9 51 pf sadx sas tas rwck we di/o 23 22 18 2 16 11 15 24 3 4 5 9 1 10 25 sad sas tas rwck we din dout test test1 test2 test3 test4 test5 test6 test cs v ss 17 13 0.1 m f c24 ic2 msm6685 0.1 m f c23 0.1 m f c22 0.1 m f c21 ic3 msm6685 ic4 msm6685 ic5 msm6685 0.1 m f c20 sadx sas sady tas rwck drom 6 7 1 2 8 13 17 10 v cc 26 sadx sasx sady sasy tas rdck dout test v cc 9 ic6 msm6595/6596 cs1 cs2 v ss 43 18 1, 2 3 4 5 6 7 8 9 12 15 10 11 19, 20 fc2 20-pin flat cable connector (for serial voice rom) 1m j1 2m 20 19 17 16 18 d1 1s1588 r3 51 k w vr1 10 k w agnd c6 0.47 m f ic7 lm386 + 3 2 + C 6 4 7 + av dd + c15 100 m f c11 0.1 m f 5 c19 10 m f c7 + 220 m f c12 0.047 m f r8 10 w + C sp sp 2 3 1 dv dd dgnd agnd agnd agnd dgnd + +
? semiconductor 6/11 msm6688 demo board ca0~3 hex sw hex sw ca4.5 1 2 4 8 1 2 4 8 rai 100k w dv dd 1.2 (for microcomputer interface) fci 20-pin flat cable connector 3 4 5 6 7 8 9 11 12 d0 d1 d2 d3 ce rd wr reset mon 19, 20 dgnd ra2 100k w dip sw pdmd mcum vds rom rsl1 rsl2 msl1 msl2 dip sw dip sw sam1 sam2 4/3b ra2 100k w ra3 100k w r?st pec/play r?st st sp pause del r2 100k w c16 0.1 m f mon 5.1k w r9 5v gnd power on d2 10di + c2 0.1 m f c1 470 m f dv dd av dd r1 5.1k w power dgnd agnd 1 2 3 4 5 6 9 10 14 15 31 32 33 34 11 12 13 56 55 54 8 7 53 51 52 35 100k w r10 c4 30pf 47 48 c3 30pf x1 4mhz d0 d1 d2 d3 busy rpm test mcum test test rsel1 rsel2 test test ce test test ce rd wr acon vpm reset mon nar pdwn xt xt 30 29 dgnd agnd dv dd c5 0.1 m f 49 21 22 av dd 0.1 m f c8 dv dd dv dd' av dd sadx sas sady tas rwck we di/o drom cs1 cs2 cs3 cs4 sgc sg min mout lin lout amon fin fout adin aout ic1 msm6688 39 36 38 37 50 46 44 45 40 41 42 43 24 23 ++ c13 c14 1 m f1 m f agnd 28 27 c10 51pf r5 100k w r4 10k w + c18 0.47 m f mic line mic agnd c17 0.47 m f r6 10k w r7 470k w 26 25 c9 51pf sadx sas tas rwck we di/o 23 22 18 2 16 11 15 24 3 4 5 9 1 10 25 sad sas tas rwck we din dout test test1 test2 test3 test4 test5 test6 test cs v ss 17 13 0.1 m f c24 ic2 msm6685 0.1 m f c23 0.1 m f c22 0.1 m f c21 ic3 msm6685 ic4 msm6685 ic5 msm6685 0.1 m f c20 sadx sas sady tas rwck drom 6 7 1 2 8 13 17 10 v cc 26 sadx sasx sady sasy tas rdck dout test v cc 9 ic6 msm6595/6596 cs1 cs2 v ss 43 18 1, 2 3 4 5 6 7 8 9 12 15 10 11 19, 20 fc2 20-pin flat cable connector (for serial voice rom) 1m j1 2m 20 19 17 16 18 d1 1s1588 r3 51k w vr1 10k w agnd c6 0.47 m f ic7 lm386 + 3 2 + C 6 4 7 + av dd + c15 100 m f c11 0.1 m f 5 c19 10 m f c7 + 220 m f c12 0.047 m f r8 10 w + C sp sp 2 3 1 dv dd dgnd agnd agnd agnd dgnd to use this demonstration board in microcom p uter interface mode , do not mount the p ortion indicated b y a dotted line and connect pin 8 ( pause ) to gnd. when using in microcomputer interface mode how to change setting from stand-alone mode to microcommputer interface mode
? semiconductor 7/11 msm6688 demo board circuit diagram(microcomputer interface mode) dv dd 1.2 (for microcomputer interface) 20-pin flat cable connector 3 4 5 6 7 8 9 11 12 d0 d1 d2 d3 ce rd wr reset mon 19, 20 dgnd ra2 100k w dip sw pdmd mcum vds rom rsl1 rsl2 msl1 msl2 dip sw dip sw sam1 sam2 4/3b ra2 100k w ra3 100k w mon 5.1kw r9 +5v gnd power on d2 10di + c2 0.1 m f c1 470 m f dv dd av dd r1 5.1k w power dgnd agnd 1 2 3 4 5 6 9 10 14 15 31 32 33 34 11 12 13 56 55 54 8 7 53 51 52 35 100k w r10 c4 30pf 47 48 c3 30pf x1 4mhz d0 d1 d2 d3 busy rpm test mcum test test rsel1 rsel2 test test ce test test ce rd wr acon vpm reset mon nar pdwn xt xt 30 29 dgnd agnd dv dd c5 0.1 m f 49 21 22 av dd 0.1 m f c8 dv dd dv dd' av dd sadx sas sady tas rwck we di/o drom cs1 cs2 cs3 cs4 sgc sg min mout lin lout amon fin fout adin aout ic1 msm6688 39 36 38 37 50 46 44 45 40 41 42 43 24 23 ++ c13 c14 1 m f1 m f agnd 28 27 c10 51pf r5 100k w r4 10k w + c18 0.47 m f mic line mic agnd c17 0.47 m f r6 10k w r7 470k w 26 25 c9 51pf sadx sas tas rwck we di/o 23 22 18 2 16 11 15 24 3 4 5 9 1 10 25 sad sas tas rwck we din dout test test1 test2 test3 test4 test5 test6 test cs v ss 17 13 0.1 m f c24 ic2 msm6685 0.1 m f c23 0.1 m f c22 0.1 m f c21 ic3 msm6685 ic4 msm6685 ic5 msm6685 0.1 m f c20 sadx sas sady tas rwck drom 6 7 1 2 8 13 17 10 v cc 26 sadx sasx sady sasy tas rdck dout test v cc 9 ic6 msm6595/6596 cs1 cs2 v ss 43 18 1, 2 3 4 5 6 7 8 9 12 15 10 11 19, 20 fc2 20-pin flat cable connector (for serial voice rom) 1m j1 2m 20 19 17 16 18 d1 1s1588 r3 51k w vr1 10k w agnd c6 0.47 m f ic7 lm386 + 3 2 + C 6 4 7 + av dd + c15 100 m f c11 0.1 m f 5 c19 10 m f c7 + 220 m f c12 0.047 m f r8 10 w + C sp sp 2 3 1 dgnd agnd agnd agnd dgnd
? semiconductor 8/11 msm6688 demo board condior setting three dip switches are used to set recording conditions. turn on dip switch pdmd. turn on dip switch mcum. off: sets up the stand-alone mode. on: sets up the microcomputer interface mode. turn off dip switch vds. turn off dip switch rom. use dip switches rsl1 and rsl2 to set the number of serial registers to be connected externally. off rsl2 off on on off rsl1 on off on 1 number of serial registers 2 3 4 turn on dip switch msl1 and turn off msl2 turn on dip switch sam1 and turn off dip switch sam2. turn off dip switch 4/3b.
? semiconductor 9/11 msm6688 demo board pattern layout silk screen
? semiconductor 10/11 msm6688 demo board mounting side
? semiconductor 11/11 msm6688 demo board solder side

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