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參數(shù)資料
| 型號： | D6385A-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> | 385K |
| 代理商： | D6385A-11 |
All Digital Telephone Answering Device with True FULL Duplex
SpeakerPhone includes Slave CODEC Operation for Digital
Telephone Applications
General Description
The D6385A 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, memory management, F
LEXI
S
PEECH
and
True FULL Duplex SpeakerPhone
for an all digital answering machine. In addition, the D6385A has the ability to
operate as a CODEC, in slave mode, for use in Digital Telephone applications such as DECT. The D6385A 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
D6385A
DSP Speech
Processor
CODEC
CODEC
Telephone
Line
Interface
Speaker
Phone
Interface
Host
Controller
ARAM
Memory
Voice
Prompt
ROM
Phone
Line
Optional
Figure 1. D6385A System Block Diagram
Key Features
n
High-quality, variable low rate T
RUE
S
PEECH
digital
speech compression allowing 14-15 minutes of
recording time per each 4 Mbit ARAM (Audio
Grade DRAM)
n
T
RUE
S
PEECH
, natural-sound voice prompting, for
Day/Time stamp and voice instructions
n
Flexible storage of incoming messages (ICM),
outgoing messages (OGM). Supports multiple
OGMs and multiple mailboxes
n
DTMF generation and detection with near-end
echo cancellation for superior performance
n
Storage of 32 telephone numbers for speed dialing
n
Easy Host software conversion from the D6305B
n
F
LEXI
S
PEECH
variable speed, natural sound
playback (50%-200%)
n
Selectable Master/Slave CODEC operation
n
Supports offset playback for jumps within a
message
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
Two programmable call progress tone filters
n
Simple 8-bit Host Hardware Interface
D6385A
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