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參數(shù)資料
| 型號(hào)： | D6351A-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 |
| 文件大小： | 447K |
| 代理商： | D6351A-11 |
F
lash
T
AD
Chip for an all Digital Telephone Answering Device
with True FULL Duplex SpeakerPhone
General Description
The D6351A 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 D6351A 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
D6351A
DSP Speech
Processor
CODEC
CODEC
Telephone
Line
Interface
Speaker
Phone
Interface
Host
Controller
Flash
Memory
Voice
Prompt
ROM
Phone
Line
Optional
Figure 1. D6351A System Block Diagram
Key Features
n
High-quality, variable low rate T
RUE
S
PEECH
digital
speech compression allowing 13-15 minutes of
recording time per each 4 Mbit Flash Memory
n
Flexible storage of incoming messages (ICM) and
outgoing messages (OGM), supporting 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
Easy Host software conversion from the D6305B
n
Simple 8-bit Host Interface
n
Digital volume control
n
Works with 4Mb or 16Mb Flash Memory Devices:
Samsung
KM29N040*, KM29N1600T** and
KM29N16TS
n
True FULL Duplex SpeakerPhone with both
acoustical and near-end echo cancellation
n
Programmable thresholds for VOX, DTMF, and
Call Progress
n
Supports offset playback for jumps within a
message
n
F
LEXI
S
PEECH
variable speed, natural sound
playback (50%-200%)
n
Low Power Consumption
*May have up to 3 bad sectors
**May have up to 10 bad sectors
D6351A
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