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| 型号： | CPC7594MBTR |
| 厂商： | CLARE INC |
| 元件分类： | 通信及网络 |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO16 |
| 封装： | ROHS COMPLIANT, DFN-16 |
| 文件页数： | 6/20页 |
| 文件大小： | 596K |
| 代理商： | CPC7594MBTR |
CPC7594
14
www.clare.com
R03
Make-Before-Break Ringing to Talk Transition Logic Sequence
2.3.4 Break-Before-Make Operation
Break-before-make operation of the CPC7594 can be
achieved using two different techniques.
The first method uses manipulation of the INRINGING
and INTEST logic inputs as shown in
1.
At the end of the ringing state apply the all off
state (1,1). This releases the ringing return
switch (SW3) while the ringing switch (SW4)
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 SW4, the ringing switch, has
opened.
3.
Apply inputs for the next desired state. For the
talk state, the inputs would be (0,0).
Break-before-make operation occurs when the ringing
switches open before the break switches SW1 and
SW2 close.
Break-Before-Make Ringing to Talk Transition Logic Sequence
2.3.5 Alternate Break-Before-Make Operation
The alternate break-before-make technique is
available for all versions of the CPC7594. As shown in
the bi-directional TSD interface disables all of the
switches when pulled to a logic low. Although logically
disabled, an active ringing switch (SW4) will remain
closed until the next zero crossing current event.
As shown in the table “Alternate Break-Before-Make
page 15, this operation is similar to the one shown in
except in the method used to select the all off state,
and in when the INRINGING and INTEST inputs are
reconfigured for the talk state.
State
INRINGING
INTEST
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
SW4 waiting for next zero-current crossing to
turn off. Maximum time is one-half of the
ringing cycle. In this transition state current
limited by the dc break switch 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
INTEST
LATCH
TSD
Timing
Break
Switches
Ringing
Return
Switch
(SW3)
Ringing
Switch
(SW4)
Test
Switches
Ringing
1
0
0Z
-Off
On
Off
All-Off
1
Hold this state for at least one-half of the
ringing cycle. SW4 waiting for zero current to
turn off.
Off
On
Off
Break-
Before-
Make
11
Zero current has occurred.
SW4 has opened
Off
Talk
0
Break switches close.
On
Off
相关PDF资料 |
PDF描述 |
|---|---|
| CPC7594MCTR | |
| CPC7594BCTR | |
| CPC7594BBTR | |
| CPC7594MC | |
| CPC7691BA | |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CPC7594MC | 功能描述:固态继电器-PCB安装 6-pole, high hold current, MLP LCAS 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 |
| CPC7594MCTR | 功能描述:固态继电器-PCB安装 6-pole, high hold current, MLP LCAS, T/R 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 |
| CPC7595 | 制造商:CLARE 制造商全称:Clare, Inc. 功能描述:Line Card Access Switch |
| CPC7595_1 | 制造商:CLARE 制造商全称:Clare, Inc. 功能描述:Line Card Access Switch |
| CPC7595BA | 功能描述:固态继电器-PCB安装 10-pole SOIC LCAS 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 |
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