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參數(shù)資料
| 型號： | PSB4851 |
| 英文描述： | Analog Front End for Sophisticated Answering Machine |
| 中文描述： | 模擬前端的精密應答機 |
| 文件頁數(shù)： | 10/44頁 |
| 文件大?。?/td> | 752K |
| 代理商： | PSB4851 |
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PSB 4851
Data Sheet
10
09.99
1.5
Functional Block Diagram
Figure 1-3
Block Diagram of PSB 4851
1.6
System Integration
The PSB 4851 is the standard analog interface for several digital telecommunication ICs
such as:
PSB 4860 (digital answering machine)
PSB 2170 (acoustic echo canceller)
The PSB 4851 is especially suited for applications that need two independent analog
channels where one codec interfaces to a loudspeaker/microphone combination while
the other codec serves the line.
1.6.1
Analog Featurephone with Digital Answering Machine
Figure 1-4 shows an example of an analog telephone system. The telephone can
operate during power failure by line powering. In this case only the handset is active. All
other parts of the chipset are shut down leaving enough power for the external
microcontroller to perform basic tasks like keyboard monitoring.
SDX
SDR
SCLK
CS
MIP
1
MIN
1
MIP
2
MIN
2
AXI
AFECLK
AFEFS
AFEDD
AFEDU
LSP
LSN
HOP
HON
AXO
RST
MUX
Control
Interface
Data
Interface
MUX
A/D
A/D
D/A
D/A
Vref
V
REF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSB4851TV2.1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PSB-486 | 制造商:PMI 制造商全稱:PMI 功能描述:SPLIT BOBBIN HIGH ISOLATION POWER TRANSFORMERS |
| PSB4860 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Digital Answering Machine with Full Duplex Speakerphone SAM EC |
| PSB-486D | 制造商:PMI 制造商全稱:PMI 功能描述:SPLIT BOBBIN HIGH ISOLATION POWER TRANSFORMERS |
| PSB4KB06A | 制造商:TE Connectivity 功能描述: |
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