參數(shù)資料
型號(hào): W671561P
廠商: WINBOND ELECTRONICS CORP
元件分類: 模擬傳輸電路
英文描述: TELECOM-SLIC, PQCC28
封裝: PLASTIC, LCC-28
文件頁數(shù): 6/42頁
文件大?。?/td> 1230K
代理商: W671561P
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
- 14 -
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