HT8656A

更新时间： 2024-02-23 09:34:12

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
11页	646K
描述
Talking Back

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技术参数
数据手册

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HT8656A 技术参数

是否Rohs认证：	不符合	生命周期：	Contact Manufacturer
Reach Compliance Code：	unknown	风险等级：	5.87
商用集成电路类型：	SPEECH SYNTHESIZER WITH RCDG	JESD-30 代码：	R-PDIP-T28
JESD-609代码：	e0	端子数量：	28
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：	DIP28(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：	3 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

HT8656A 数据手册

HT8656

Talking Back

Features

•

Operating voltage: 4.5V~5.5V

ADM algorithm

DRAM selection:

Built-in 2-stage microphone amplifier

Built-in DRAM refresh circuit

Voltage type D/A output

Current type D/A output

Auto record and playback

Auto power-off

•

–

64K

256K

–

•

Sampling rate selection:

–

32Kb

16Kb

Low power consumption

–

Auto stop recording

–

0.5 seconds silence is detected

Recording capacity is full

–

Applications

•

Toys

Games

•

Education

General Description

The HT8656 is a single chip CMOS LSI for

talking back applications using an ADM algo-

rithm. Functions of the IC consist of record-

ing/playing as well as auto power off. It starts

recording when a sound input is detected, and

stops to play back when silence lasts 0.5 sec-

onds during recording. The auto power off func-

tion is activated once a REC/PLAY cycle has

been implemented 64 times or an interval of

silence exceeds 2 minutes.

The HT8656 provides a recording capacity of 2

seconds for DRAM of 64K and 8 seconds for

DRAM of 256K at a 32Kb sampling rate and

double recording capacity at a 16Kb sampling

rate. A higher sampling rate will result in

sounds of better quality but sacrifice the record-

ing time, and vice versa.

5th May ’98

12 3 4 5 6 7...11

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