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参数资料
| 型号： | W671540P |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | 模拟传输电路 |
| 英文描述： | TELECOM-SLIC, PQCC28 |
| 封装： | PLASTIC, LCC-28 |
| 文件页数： | 6/42页 |
| 文件大小： | 1230K |
| 代理商： | W671540P |
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W671500 SERIES
2-WIRE
NETWORK
R
1
R
2
C
2
PROGRAMMING
NETWORK
R
Series
R
Parallel
C
Parallel
FIGURE 5: COMPLEX PROGRAMMING NETWORK
The reference designators in the programming network match the evaluation board. The component
RS has a different design equation than the RS used for resistive impedance synthesis. The design
equations for each component are provided below.
RSeries
133.3
R1 2 RP
(
)
(
)
×
=
(EQ. 18)
RParallel
133.3 R2
×
=
(EQ. 19)
CParallel C2 133.3
=
(EQ. 20)
7.2. OPERATING MODES
The operation of the W671500 Family may best be understood by examining the various operating
modes. The following table gives an overview of those modes and the members of the W671500
family to which they apply. A detailed description of each mode will follow.
TABLE 1: DEVICE OPERATING MODES
MODE
F2 F1 F0 E0 = 1 E0 = 0 W671510 W671520 W671530 W671540 W671552 W671561 W671570
W671571
Low Power Standby
0
SHD
GKD
●
Forward Active
0
1
SHD
GKD
●
Unbalanced Ringing
0
1
0
RTD
●
Reverse Active
0
1
SHD
GKD
●
Ringing
1
0
RTD
●
Forward Loop Back
1
0
1
SHD
GKD
●
Tip Open
1
0
SHD
GKD
●
Power Denial
1
n/a
●
Notes:
SHD: Switch Hook Detector; GKD: Ground Key Detector;
RTD: Ring Trip Detect
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