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| 型號： | D6455A-11 |
| 英文描述： | Telecommunication IC |
| 中文描述： | 通信集成電路 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 384K |
| 代理商： | D6455A-11 |
E
ASY
T
AD
Chip for an all Digital Telephone Answering Device with
Super Low Rate Coder and True FULL Duplex SpeakerPhone
General Description
The D6455A/B chip is a digital speech/signal processing subsystem that implements all functions of T
RUE
S
PEECH
speech compression and voice prompts, telephone line signal processing, flash memory management and True FULL
Duplex SpeakerPhone
for an all digital answering machine. The D6455A/B is fully controlled by the system Host
through a simple interface protocol. The Host controller provides activation and control of all system functions such as
speech recording and playback, DTMF and call progress tone detection, DTMF and tone generation, and voice
prompting.
A
D6455A/B
DSP Speech
Processor
CODEC
CODEC
Telephone
Line
Interface
Speaker
Phone
Interface
Host
Controller
ARAM
Voice
Prompt
ROM
Phone
Line
Optional
Figure 1. D6455A/B System Block Diagram
Key Features
n
High-quality, new super low rate T
RUE
S
PEECH
digital speech compression allowing 25-27 minutes
of recording time per each 4 Mbit of memory
n
Flexible storage of incoming messages (ICM),
outgoing messages (OGM). Supports multiple
OGMs and multiple mailboxes
n
T
RUE
S
PEECH
, natural-sound voice prompting, for
Day/Time stamp and voice instructions
n
DTMF generation and detection with near-end
echo cancellation for superior performance
n
Simple 8-bit Host Interface
n
Fully compatible with the D6305B. Host software
compatible, pin-for-pin replaceable
n
Works with 256Kx4 (1 Mbit)*, 1Mx4 (4 Mbit) or
4Mx4 (16 Mbit)* ARAMs
n
True FULL Duplex SpeakerPhone with both
acoustical and near-end echo cancellation
n
Programmable Thresholds for VOX, DTMF, and
Call Progress
n
Digital Volume Control
n
Supports offset playback for jumps within a
message
n
Low power consumption
n
Special commands for production line testing
* Supported in D6455B only
D6455A/B
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| D6471D-11 | Telecomm/Datacomm |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| D6455B-11 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| D64569-007 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Intel Server Board S5000VCL |
| D6461 | 制造商:NEC 制造商全稱:NEC 功能描述:CMOS LSI CHIP FOR CAMCORDER ON-SCREEN CHARACTER DISPLAY 12 ROWS x 24 COLUMNS |
| D6464AGT101 | 制造商:NEC 制造商全稱:NEC 功能描述:屏幕視頻疊加 |
| D6464CFM | 功能描述:LED 顯示器和配件 RGB DOT MATRIX 16X16 DOT MODULE RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長:628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
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