1/4 rev. a structure silicon monolithic integrated circuit product name voice synthesis lsi type BU6949FV features 1) single playback mode, available bit-rate is 16kbp s(high compression) - 128kbps(high quarity) at 32khz sampling or 16khz sampling). 2) voice/audio data is stored in serial flash rom which is connected to BU6949FV through spi-serial interface. duration for playback is 32seconds/mbits(standard) or max 64s/mbits(maximum). 3) input system clock: 16.384mhz/8.192mhz/4.096mhz/2.048mhz. 4) audio sampling rate is 32khz or 16khz and built-in 16bits dac 5) operation by single power supply. available voltage:2.7 to 3.6v. 6) max numbers of tunes : 512 7) maximum 10 phrase numbers memory as a rom-phrase number,and playback them only one command.(rom_phrase number is available 0-46) 8) host-i/f is selectable from serial interface with status or direct-pin mode. 9) enable to access(read/write) data stored in se rial flash rom connected directly to BU6949FV. 10) various play modes are available. play modes from serial interface -decodable 2 channels simultaneously -adjustable volume at each track independently -enable to playback tunes which are registered in t he sequencer list. order of tunes are randomly selected. max 16 tunes can be registered. -for each track, enable to playback a selected t une or to playback tunes in t he sequencer list with/without loop(except rom_phrase mode). -fade-in and fade-out functions are supported. play modes from direct pin control -2ch simultaneously playback available.(phras e0-phrase23 are playback track0, phrase24-31 are playback track1.) note) at rom-phrase mode, phrase number excahnge rom-phrase number. -maximum 31 tunes are registered to play. -at normal play mode,available loop play back phrase28-phrase31(except rom-phrase mode). radiation resistance design is not arranged.
2/4 rev. a absolute maximum ratings (ta = 25 ) item symbol ratings unit power dissipation *) pd 640 mw applied voltage v dd -0.2 7.0 v input voltage v in -0.2 vdd+0.3 v operating temperature range t opr -40 +85 storage temperature range tstg -50 125 *) over ta = 25 or more, reducing 6.4mw per . radiation resistance design is not arranged. operation conditions (ta= -40 +85 unless otherwise specified) item symbol specified value unit condition min typ max operation power-supply voltage vdd_in 2.7 3.6 v electric characteristic (dc characteristic) dc characteristics vdd_in=3v ta = 2 5 item symbol specified value unit condition circuit form min typ max "h" input voltage v ih 0.7vdd v 2 "l" input voltage v il 0.3vdd v 2 "h" output voltage v oh vdd-0.4 v io=2.0ma 2 "l" output voltage v ol 0.4 v io=2.0ma 2 "h" input current i ih 10 a vih=vdd 1 "l" input current i il -10 a vil=gnd 1 static consumption current i st 10 a v i =v dd orgnd 3 dac characteristics vdd_in=3v (ta=25 ) item symbol specified value unit condition min. typ. max. dacoutoutput load registance r aout 10 k ? at no signal dacout output voltage v aout gnd vdd v at no load
3/4 rev. a external dimensions ? block diagram figure1 external dimention figure 2. block diagram command i/f (serial i/f) pre-processor controller rom i/f main processor controller voice signal proccessing part temporary ram coef. ram sio output i/f dac output regulator osc direct tune input pin spi i/f serial rom BU6949FV lot no. ssop-b28
4/4 rev. a pin name table pin name detailed table pin no. pin name i/o function 1 gnd gnd 2 vsel2/txd io tune number pin#2 / serial interface output data 3 vsel1/rxd i tune number pin#1 / serial interface input data 4 vsel0/rxcb i tune number pin#0 / serial interface clk 5 tsevent/busy o playing / ending flag("h":playing "l":stop) accessing flash rom ("h" busy "l"not busy) 6 vsel3/syncreq io tune number pin#3 / synchronous character request ("h" synchronization error) 7 gnd gnd 8 vdd1.8_in i core power supply input 3) 9 reg18 o core power supply output 3) 10 stby i standby ("h" oscillation stop) normally ?l? 11 testen i test input(?l? fixation 12 vdd_in power supply input 13 spisck o clock fo r serial spi-rom 14 spiso o serial output data to serial spi-rom 15 spisi i serial input data from serial spi-rom 16 spiceb o chip enable for serial spi-rom 17 gnd gnd 18 vsel4/bfullb io tune number pin#4 /command buffer full signal 19 apoff i analog circuit power off 20 clk16sel i clock selection ?h?:16.384mhz mode ?l?:4.096mhzmode 21 refout o lsi test pin (attach capacitance(>10uf)) 22 dacout o dac output 23 gnd gnd 24 vdd_in power supply input 25 resetb i reset pin (low active) 26 sio_enbl i selection of host interface(sio or direction pin input *1) ) 27 xin i oscillation cell input *2 28 xout o oscillation cell output *2 *1) at sio_enbl ="l", vsel4, vsel3, vsel2, vsel1, vsel0 is valid, and sio is invalid. *2) at no setting clk setting register, clock is 16.384m hz at clk16sel="h",,4.096mhz at clk16sel ="l". *3) pin #8 and pin #9 should be connected in a shortest pass, and attach capacitance(>10uf) as following figure. [cautions on use] pause command is available for only 1ch playback. not available during 2ch simultaneously playback.
r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specied in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specied herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, re or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, re control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospac e machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specied herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law.
|
