HT8665

更新时间： 2024-02-04 22:02:16

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		音频合成器集成电路消费电路商用集成电路光电二极管
页数	文件大小	规格书
13页	911K
描述
Talking Back with Echo

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技术参数
数据手册

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HT8665 技术参数

是否Rohs认证：	不符合	生命周期：	Active
包装说明：	DIP, DIP40(UNSPEC)	Reach Compliance Code：	unknown
风险等级：	5.78	Is Samacsys：	N
商用集成电路类型：	SPEECH SYNTHESIZER WITH RCDG	JESD-30 代码：	R-PDIP-T40
JESD-609代码：	e0	端子数量：	40
最高工作温度：	70 °C	最低工作温度：	-20 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	DIP
封装等效代码：	DIP40(UNSPEC)	封装形状：	RECTANGULAR
封装形式：	IN-LINE	电源：	5 V
认证状态：	Not Qualified	最长读取时间：	16 s
子类别：	Audio Synthesizer ICs	最大压摆率：	6 mA
表面贴装：	NO	技术：	CMOS
温度等级：	COMMERCIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	THROUGH-HOLE	端子位置：	DUAL
Base Number Matches：	1

HT8665 数据手册

HT8665

Talking Back with Echo

Features

•

Single power supply: 4.5V~5.5V

Recording capacity: 2, 4, 8, 16 seconds

•

ADM algorithm

Auto playback with an echo effect

DRAM options:

A built-in 2 stage microphone amplifier

A built-in DRAM refresh circuit

A voltage type D/A output

A current type D/A output

•

–

•

64K

256K

–

•

Auto power-off

•

Sampling rate options:

Low power dissipation

–

32K bps (bits per second)

–

16K bps

Applications

•

Toys

Games

•

Educations

General Description

The HT8665 is a single chip CMOS LSI using

an ADM algorithm. It is designed for applica-

tions on talking back with an echo effect. Func-

tions of the IC consist of recording/playing and

auto power off in addition to an echo effect. The

IC starts recording when a sound input is de-

tected, and stops to play back when silence lasts

0.5 seconds during recording. The auto power

off function is activated once a REC/PLAY cycle

has been implemented 64 times or an interval

of silence exceeds 2 minutes.

The HT8665 provides a recording capacity of 2

seconds at a 32K bps sampling rate for DRAM

of 64K (8 seconds for DRAM of 256K) and 4

seconds at a 16K bps sampling rate (16 seconds

for DRAM of 256Kb). A higher sampling rate

results in sounds of better quality but sacrifices

the recording time, and vice versa.

21st Dec ’95

12 3 4 5 6 7...13

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