- 您现在的位置：买卖IC网 > PDF目录376305 > RC8650 (Electronic Theatre Controls, Inc.) VOICE SYNTHESIZER PDF资料下载
参数资料
| 型号： | RC8650 |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | VOICE SYNTHESIZER |
| 中文描述： | 语音合成器 |
| 文件页数： | 8/48页 |
| 文件大小： | 747K |
| 代理商： | RC8650 |
第1页第2页第3页第4页第5页第6页第7页当前第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页
8
RC8650 VOICE SYNTHESIZER
RC SYSTEMS
FUNCTIONAL DESCRIPTION
The RC8650 chipset includes a number of features that make it ide-
ally suited for any design requiring voice output. The RC8650’s major
features are described below.
Text-to-Speech Synthesizer
The RC8650 provides text-to-speech conversion with its integrated
DoubleTalk text-to-speech synthesizer. Any English text written to
the RC8650 is automatically converted into speech. Commands can
be embedded in the input stream to dynamically control the voice,
even at the phoneme level (phonemes are the basic sound units of
speech).
A greeting message can be stored in the RC8650 that is automati-
cally spoken immediately after the RC8650 is reset. Most any of the
commands recognized by the RC8650 may be included as part of the
greeting message, which can be used to set up custom default set-
tings and/or play a prerecorded message or tone sequence. An inte-
grated nonvolatile memory area is also provided for storing a custom
pronunciation dictionary, allowing the pronunciation of any character
string to be redefined.
Musical Tone Generator
An integrated, three-voice musical tone generator is capable of gen-
erating up to three tones simultaneously over a four-octave range.
Simple tones to attention-getting sounds can be easily created.
Touch-Tone Generator
The RC8650 includes an integrated DTMF (Touch-Tone) generator.
This is useful in telephony applications where standard DTMF tones
are used to signal a remote receiver, modem, or access the public
switched telephone network.
Sinusoidal Tone Generator
A precision, dual sinusoidal tone generator can synthesize the tones
often used in signaling applications. The tone frequencies can be
independently set, allowing signals such as call-progress tones to be
generated.
Recorded Audio Playback
Up to 15 minutes of prerecorded messages and sound effects can
be stored in the RC8650 for on-demand playback. Recordings are
stored in on-chip nonvolatile memory, providing zero-power message
storage. Additionally, the RC8650 can play eight-bit PCM and ADPCM
audio in real time, such as speech and/or sound effects stored in an
external memory or file system.
Analog-to-Digital Converter
The four channel, 8-bit A/D converter can be used to monitor battery
cell voltages, temperature, and other analog quantities. The ADC can
be programmed on the fly to convert any single channel, or scan up
to four channels repetitively.
Versatile I/O
All data is sent to the RC8650 through its built in serial and/or parallel
ports.
For maximum flexibility, including infield product update capa-
bility, use of the serial port is recommended whenever possible.
The RC8650’s audio output is available in both analog and digital
formats. The analog output should be used in applications where
no further processing of the audio signal is required, such as driving
a speaker or headphones (the output still needs to be filtered and
amplified, however). The digital output is for applications that require
further processing of the audio signal, such as digital mixing or creat-
ing sound files for later playback.
RECOMMENDED CONNECTIONS
Power/Ground
Power and ground connections are made to multiple pins of the
RC8650 and RC46xx chips. Every V
CC
pin must be connected to
power, and every V
SS
pin must be connected to ground. To minimize
noise, the analog and digital circuits in the RC8650 use separate
power busses. These busses are brought out to separate pins and
should be tied to the supply as close as possible.
Make sure adequate decoupling is placed on the AV
REF
pin, as noise
present on this pin will also appear on the AO output pins and affect
A/D converter accuracy. In systems where the power supply is very
quiet, AV
REF
can be connected directly to V
CC
. Designs incorporating
a switching power supply, or supplies carrying heavy loads, may re-
quire filtering at the AV
REF
pin; a 150
series V
CC
resistor in combina-
tion with a 100
μ
F capacitor to ground should suffice.
Connect any unused input pins to an appropriate signal level (see
Table 1.1).
Leave any unused output pins and all NC pins uncon-
nected.
Chip Interconnects
Pins IC
0
through IC
32
and PIO
0
through PIO
7
must be connected be-
tween the RC8650 and RC46xx chips. IC
30
, IC
31
, and IC
32
must have
47 k
– 100 k
pullup resistors to V
CC
.
Clock Generator
The RC8650 has an internal oscillator and clock generator that can be
controlled by an external 7.3728 MHz crystal, ceramic resonator, or
external 7.3728 MHz clock source. If an external clock is used, con-
nect it to the XIN pin and leave XOUT unconnected. See Figure 1.2 for
recommended clock connections.
Figure 1.2. Clock Connections
相关PDF资料 |
PDF描述 |
|---|---|
| RC8650L | VOICE SYNTHESIZER |
| RC86L50-0 | VOICE SYNTHESIZER |
| RC86L50-1 | VOICE SYNTHESIZER |
| RC86L50-2 | VOICE SYNTHESIZER |
| RC86L50-3 | VOICE SYNTHESIZER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RC8650L | 制造商:未知厂家 制造商全称:未知厂家 功能描述:VOICE SYNTHESIZER |
| RC865NP-101K | 制造商:SUMIDA 制造商全称:Sumida Corporation 功能描述:Power Inductor |
| RC865NP-102K | 制造商:SUMIDA 制造商全称:Sumida Corporation 功能描述:Power Inductor |
| RC865NP-103K | 制造商:SUMIDA 制造商全称:Sumida Corporation 功能描述:Power Inductor |
| RC865NP-121K | 制造商:SUMIDA 制造商全称:Sumida Corporation 功能描述:Power Inductor |
发布紧急采购，3分钟左右您将得到回复。