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| 型号： | CPC7695BC |
| 厂商： | CLARE INC |
| 元件分类： | 通信及网络 |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO28 |
| 封装： | ROHS COMPLIANT, SOIC-28 |
| 文件页数： | 9/23页 |
| 文件大小： | 678K |
| 代理商： | CPC7695BC |
CPC7695
R00C
www.clare.com
17
Make-Before-Break Operation Logic Table (Ringing to Talk Transition)
2.3.4 Break-Before-Make Operation
Break-before-make operation of the CPC7695 can be
achieved using two different techniques.
The first method uses manipulation of the (INRINGING,
INTESTin, INTESTout) logic inputs as shown in
1.
At the end of the ringing state apply the all-off
state (1,0,1). This releases the ringing return
switch (SW3) while the ringing switch remains on
waiting for the next zero current event.
2.
Hold the all-off state for at least one-half of a
ringing cycle to assure that a zero crossing event
occurs and that the ringing switch (SW4) has
opened.
3.
Apply inputs for the next desired state. For the
talk state, the inputs would be (0,0,0).
Break-before-make operation occurs when the ringing
switch opens before the break switches SW1 and
SW2 close.
Break-Before-Make Operation Logic Table (Ringing to Talk Transition)
2.3.5 Alternate Break-Before-Make Operation
The second break-before-make method is also
available for use with all versions of the CPC7695. As
bidirectional TSD interface disables all of the CPC7695
State
INRINGING INTESTin INTESTout
Latch
TSD
Timing
Break
Switches
Ringing
Return
Switch
(SW3)
Ringing
Switch
(SW4)
Test
Switches
Ringing
1
0
0Z
-Off
On
Off
Make-
Before-
Break
00
0
SW4 waiting for next
zero-current crossing to turn
off. Maximum time is one-half
of the ringing cycle. In this
transition state, current that is
limited to the break switch dc
current limit value will be
sourced from the ring node of
the SLIC.
On
Off
On
Off
Talk
0
Zero-cross current has
occurred
On
Off
State
INRINGING INTESTin INTESTout
Latch
TSD
Timing
Break
Switches
Ringing
Return
Switch
(SW3)
Ringing
Switch
(SW4)
Test
Switches
Ringing
1
0
0Z
-Off
On
Off
All-off *
10
1
Hold this state for at least
one-half of ringing cycle.
SW4 waiting for zero current
to turn off.
Off
On
Off
Break-
Before-
Make *
10
1
Zero current has occurred.
SW4 has opened
Off
Talk
0
Break switches close.
On
Off
* For the CPC7695xA/B versions the input pattern (1,1,1) may also be used for the all-off state.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CPC7695BCTR | 功能描述:固态继电器-PCB安装 TTL LCAS10, DMOS SW8 w Protection SCR & Extra Logic, TTL Inputs, High SW4 DV/DT, TAPE/REEL RoHS:否 制造商:Omron Electronics 控制电压范围: 负载电压额定值:40 V 负载电流额定值:120 mA 触点形式:1 Form A (SPST-NO) 输出设备:MOSFET 封装 / 箱体:USOP-4 安装风格:SMD/SMT |
| CPC7695ZA | 功能描述:IC LINE CARD ACCESS SW 20-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 电信 系列:* 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 06/Feb/2012 标准包装:750 系列:* |
| CPC7695ZATR | 功能描述:IC LINE CARD ACCESS SW 20-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 电信 系列:* 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 06/Feb/2012 标准包装:750 系列:* |
| CPC7695ZB | 功能描述:IC LINE CARD ACCESS SW 20-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 电信 系列:* 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 06/Feb/2012 标准包装:750 系列:* |
| CPC7695ZBTR | 功能描述:IC LINE CARD ACCESS SW 20-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 电信 系列:* 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 06/Feb/2012 标准包装:750 系列:* |
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