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UPD7759 PDF预览

UPD7759

更新时间: 2024-01-07 08:13:13
品牌 Logo 应用领域
日电电子 - NEC 语音合成PC
页数 文件大小 规格书
18页 183K
描述
ADPCM SPEECH SYNTHESIZER LSIs

UPD7759 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:QFP
包装说明:PLASTIC, QFP-52针数:52
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.18Is Samacsys:N
商用集成电路类型:SPEECH SYNTHESIZERJESD-30 代码:S-PQFP-G52
JESD-609代码:e0长度:14 mm
功能数量:1端子数量:52
最高工作温度:70 °C最低工作温度:-10 °C
封装主体材料:PLASTIC/EPOXY封装代码:QFP
封装等效代码:QFP52,.8SQ,40封装形状:SQUARE
封装形式:FLATPACK峰值回流温度(摄氏度):NOT SPECIFIED
电源:3/5 V认证状态:Not Qualified
最长读取时间:50 s座面最大高度:3 mm
子类别:Audio Synthesizer ICs最大压摆率:10 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):2.7 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:1 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:14 mmBase Number Matches:1

UPD7759 数据手册

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DATA SHEET  
MOS INTEGRATED CIRCUIT  
µPD7759  
ADPCM SPEECH SYNTHESIZER LSIs  
The µPD7759 is an external ROM type speech synthesis LSI employing the waveform coding  
method. In addition to the ROM capability of up to 1 Mbit, the µPD7759 realizes the synthesis of  
speech sounds of any length by using the ADPCM data transferred from an external ROM.  
As the synthesizing method, it adopts the ADPCM method and the PCM + waveform element method.  
The ADPCM method is suitable for synthesizing clear and natural speech sounds, and the PCM + waveform  
element method is for the synthesis of sound effects and melodies. And by using them together, the  
µPD7759 realizes the long-time synthesis of high-quality sounds.  
Because of the short turn-around time of speech analysis, the µPD7759 can perform the quick system  
development using a PROM, or the evaluation of an on-chip ROM type of the µPD7755 family.  
FEATURES  
Synthesizing method  
Sampling frequency  
Bit rate (speech)  
: ADPCM, PCM + waveform element methods used together  
: 5, 6 or 8 kHz  
: 20 to 32 K bps  
: 256 (MAX.)  
Number of Messages  
External speech data ROM  
Parameters  
Synthesizing time  
Speech data ROM  
(External)  
Note2  
Melodies & sound effects  
(PCM + waveform element)  
Note1  
Speech (ADPCM)  
50 sec. (TYP.)  
Products  
µPD7759  
1 Mbits  
340 sec. (TYP.)  
Note 1. The synthesizing time for the speech is the value for a 6 kHz sampling.  
2. The synthesizing time for the melodies & sound effects is variable according to their tone.  
Speech output  
Host CPU interface  
Standby mode  
: Current sink type analog output, 9-bit D/A converter  
: Compatible with a 4/8-bit CPU  
: Pop-noise preventive circuit incorporated  
: 2.7 to 5.5 V  
Supply voltage  
CMOS technology  
ORDERING INFORMATION  
Part Number  
Package  
Quality grade  
Standard  
µPD7759C  
40-pin plastic DIP (600 mil)  
52-pin plastic QFP (14 mm)  
µPD7759GC-3BH  
Standard  
Please refer to "Quality grade on NEC Semiconductor Devices" (Document number IEI-1209) published by  
NEC Corporation to know the specification of quality grade on the devices and its recommended applications.  
The information in this document is subject to change without notice.  
Document No. IC-2323A  
(O.D.No. IC-6960D)  
The mark shows revised points.  
Date Published January 1993  
Printed in Japan  
1988, 1993  
©

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