- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385405 > HT8658 (Holtek Semiconductor Inc.) Voice Recorder (DRAM) PDF資料下載
參數(shù)資料
| 型號(hào)： | HT8658 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Voice Recorder (DRAM) |
| 中文描述： | 錄音機(jī)體（DRAM） |
| 文件頁(yè)數(shù)： | 1/15頁(yè) |
| 文件大?。?/td> | 862K |
| 代理商： | HT8658 |
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)
HT8658/HT8659
Voice Recorder (DRAM)
Pin Assignment
Features
Single power supply: 4.5V~5.5V
ADM coding algorithm
DRAM options:
–
4
×
256K bits
–
3
×
1M bits
A built-in 2 stage MIC amplifier
A built-in low pass filter
Data rate options (bits per second):
–
32K bps
–
22K bps
–
16K bps
–
11K bps
A status LE D indicator
Auto playback
General Description
The HT8658/HT8659 are single chip CMOS
LSIs using an ADM coding technology. They are
designed for applications on recording sounds.
The HT8658 and HT8659 have almost the same
functions apart from the reset time. The reset
time of the HT8658 has to be over 4 seconds but
of the HT8659 over 2 seconds.
Blocks within each chip include a DRAM inter-
face circuit, signal amplifier, 8 bit ADC and
internal low pass filter. E ncoded data are stored
in external DRAMs and played back after the
PLYB pin be triggered. E ach IC provides four
kinds of sampling rate to be selected, namely
32K /22K /16K /11K bps (bits per second). A
higher sampling rate results in sounds of better
quality but sacrifices the recording time. With
such a powerful built-in circuit, only few compo-
nents are required for normal applications.
Each IC can be offered in a dice form or 28 pin
dual-in-line package.
AS4
AS3
AS2
AS1
AS0
VDD
AIN
AO
BIAS
FOUT
VSS
CAS1B
CAS2B
CAS3B
AS5
AS6
AS7
AS8
AS9
OSC1
OSC2
DATA
RASB
WRB
RESB
RECB
PLYB
LEDB
AS4
AS3
AS2
AS1
AS0
VDD
AIN
AO
BIAS
VOUT
VSS
CAS1B
CAS2B
CAS3B
AS5
AS6
AS7
AS8
AS9
OSC1
OSC2
DATA
RASB
WRB
RESB
RECB
PLYB
LEDB
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
HT8658A/8659A
– 28 DIP
HT8658B/8659B
– 28 DIP
Applications
Message box
Recorder
Toys
1
26th Sep ’96
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT86768 | Voice Synthesizer 8-Bit MCU |
| HT86072 | Voice Synthesizer 8-Bit MCU |
| HT86144 | Voice Synthesizer 8-Bit MCU |
| HT86192 | Voice Synthesizer 8-Bit MCU |
| HT86384 | Voice Synthesizer 8-Bit MCU |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT8658A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Solid-State Recorder |
| HT8658B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Solid-State Recorder |
| HT8659 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Voice Recorder (DRAM) |
| HT8659A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Solid-State Recorder |
| HT8659B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Solid-State Recorder |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。