- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄379503 > UPD7759GC-3BH (NEC Corp.) ADPCM SPEECH SYNTHESIZER LSIs PDF資料下載
參數(shù)資料
| 型號(hào)： | UPD7759GC-3BH |
| 廠商： | NEC Corp. |
| 英文描述： | ADPCM SPEECH SYNTHESIZER LSIs |
| 中文描述： | 差分PcM語(yǔ)音合成器大規(guī)模集成電路 |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大?。?/td> | 183K |
| 代理商： | UPD7759GC-3BH |
當(dāng)前第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)
μ
PD7759
MOS INTEGRATED CIRCUIT
ADPCM SPEECH SYNTHESIZER LSIs
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
μ
PD7759 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
μ
PD7759 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
μ
PD7759 realizes the long-time synthesis of high-quality sounds.
Because of the short turn-around time of speech analysis, the
μ
PD7759 can perform the quick system
development using a PROM, or the evaluation of an on-chip ROM type of the
μ
PD7755 family.
FEATURES
G
Synthesizing method
G
Sampling frequency
G
Bit rate (speech)
G
Number of Messages
G
External speech data ROM
: ADPCM, PCM + waveform element methods used together
: 5, 6 or 8 kHz
: 20 to 32 K bps
: 256 (MAX.)
Parameters
Synthesizing time
Melodies & sound effects
Note2
(PCM + waveform element)
Products
μ
PD7759
1 Mbits
50 sec. (TYP.)
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.
G
Speech output
G
Host CPU interface
G
Standby mode
G
Supply voltage
G
CMOS technology
: 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
ORDERING INFORMATION
Part Number
μ
PD7759C
μ
PD7759GC-3BH
Package
Quality grade
Standard
Standard
40-pin plastic DIP (600 mil)
52-pin plastic QFP (
I
I
14 mm)
Speech data ROM
(External)
Speech (ADPCM)
Note1
#
#
DATA SHEET
1988, 1993
The mark
#
shows revised points.
Document No.
(O.D.No.
Date Published
Printed in Japan
IC-2323A
IC-6960D)
January 1993
The information in this document is subject to change without notice.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD77C20A | Digital Signal Processors |
| UPD77015GC-9EU | 16-Bit Digital Signal Processor |
| UPD77017GC-9EU | 16-Bit Digital Signal Processor |
| UPD77213 | UPD77210.77213 Data Sheet | Data Sheet[11/2001] |
| UPD77220L | 24-Bit Digital Signal Processor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD780023AGB-G43-8EU-X3-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD780023AGB-G44-8EU-E3-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD780023AGC-107-8BS-A | 制造商:Renesas Electronics Corporation 功能描述:NECUPD780023AGC-107-8BS-A MASK ROM DEVIC |
| UPD780023AGK-C74-9ET-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD780024AGK-C42-9ET | 制造商:Renesas Electronics Corporation 功能描述: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。