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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(yīng)答機(jī) |
| 文件頁數(shù)： | 7/44頁 |
| 文件大?。?/td> | 752K |
| 代理商： | PSB4851 |
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PSB 4851
Data Sheet
7
09.99
1.3
Pin Definitions and Functions
Table 1-1
Pin Definitions and Functions
Pin No.
P-DSO-28-1
5
Symbol
Dir.
Reset Function
V
DDD
-
-
Power supply (3.0V - 3.6V or 4.75V - 5.25V)
Power supply for digital parts. Must be at the
same level as V
DDA
and V
DDP
.
Power supply (3.0V - 3.6V or 4.75V - 5.25V)
Power supply for analog parts. Must be at the
same level as V
DDD
and V
DDP
.
Power supply (3.0V - 3.6V or 4.75V - 5.25V)
Power supply for amplifiers. Must be at the
same level as V
DDA
and V
DDD
.
Power supply (0 V)
Ground for digital parts.
Power supply (0 V)
Ground for analog parts.
Power supply (0 V)
Ground for amplifiers.
Data Upstream:
Data output to PSB 4860.
Data Downstream:
Data input from PSB 4860.
Data Clock:
6.912 MHz clock.
Frame Synchronization:
8kHz frame synchronization from PSB 4860.
Serial Clock:
Clock for serial control interface (SCI).
Serial Data Transmit:
Data output for serial control interface (SCI).
Serial Data Receive:
Data input for serial control interface (SCI).
Chip Select:
Select signal for serial control interface (SCI).
6
V
DDA
-
-
15
V
DDP
-
-
22
V
SSD
-
-
7
V
SSA
-
-
17
V
SSP
-
-
1
AFEDU
O
L
2
AFEDD
I
-
3
AFECLK I
-
4
AFEFS
I
-
28
SCLK
I
-
27
SDX
OD
H
26
SDR
I
-
25
CS
I
-
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