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參數(shù)資料
| 型號： | ISL5585 |
| 廠商： | Intersil Corporation |
| 英文描述： | 3.3V Ringing SLIC Family for Voice Over Broadband VOB |
| 中文描述： | 3.3振鈴用戶接口VOB的家庭通過寬帶語音 |
| 文件頁數(shù)： | 19/22頁 |
| 文件大?。?/td> | 425K |
| 代理商： | ISL5585 |
19
High Battery Operation
Other than during ringing, the high battery should be used
for standby conditions which must provide MTU compliance.
During standby operation the power consumption is typically
85mW with -100V battery. If ringing requirements do not
require full 100V operation, then a lower battery will result in
lower standby power.
High Voltage Decoupling
The 100V rating of the device will require a capacitor of
higher voltage rating for decoupling. Suggested decoupling
values for all device pins are 0.1
μ
F. Standard surface mount
ceramic capacitors are rated at 100V. For applications
driven at low cost and small size, the decoupling scheme
shown below could be implemented.
It is important to place the external diode between the VBH
pin and the decoupling capacitor. Attaching the decoupling
capacitor directly to the VBH pin will degrade the reliability of
the device. Refer to Figure 14 for the proper arrangement.
This applies to both single and stacked and decoupling
arrangements.
If VBL and VBH are tied together to override the battery
switch function, then the external diode is not needed and
the decoupling may be attached directly to VBH.
Uncommitted Switch
Overview
The uncommitted switch is a three terminal device designed
for flexibility. The independent logic control input, SWC,
allows switch operation regardless of device operating
mode. The switch is activated by a logic low. The positive
and negative terminals of the device are labeled SW+ and
SW- respectively.
Relay Driver
The uncommitted switch may be used as a relay driver by
connecting SW+ to the relay coil and SW- to ground. The
switch is designed to have a maximum on voltage of 0.6V
with a load current of 45mA.
Since the device provides the ringing waveform, the relay
functions which may be supported include subscriber
disconnect, test access or line interface bypass. An external
snubber diode is not required when using the uncommitted
switch as a relay driver.
Test Load
The switch may be used to connect test loads across Tip
and Ring. The test loads can provide external test
termination for the device. Proper connection of the
uncommitted switch to Tip and Ring is shown below.
The diode in series with the test load blocks current from
flowing through the uncommitted switch when the polarity of
the Tip and Ring terminals are reversed. In addition to the
reverse active state, the polarity of Tip and Ring are
reversed for half of the ringing cycle. With independent logic
control and the blocking diode, the uncommitted switch may
be continuously connected to the Tip and Ring terminals.
FIGURE 14. ALTERNATE DECOUPLING SCHEME
VBH
VBL
0.22
μ
0.22
μ
ISL5585
FIGURE 15. EXTERNAL RELAY SWITCHING
RELAY
SW+
SW-
SWC
+V
FIGURE 16. TEST LOAD SWITCHING
RING
TIP
TEST
LOADSW+
SW-
SWC
ISL5585
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISL5585_04 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:3.3V Ringing SLIC Family for Voice Over Broadband (VOB) |
| ISL5585AIM | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:3.3V Ringing SLIC Family for Voice Over Broadband VOB |
| ISL5585AIMZ | 制造商:Intersil Corporation 功能描述:SLIC 1CH 67DB 45MA 3.3V/-18V/-24V/-28V 28PLCC - Rail/Tube 制造商:Intersil 功能描述:RINGING SLIC W/3 3V VCC 100V/58DB |
| ISL5585AIMZ-T | 制造商:Intersil Corporation 功能描述:SLIC 1CH 67DB 45MA 3.3V/-18V/-24V/-28V 28PLCC - Tape and Reel 制造商:Intersil 功能描述:RINGING SLIC W/3 3V VCC 100V/58DB |
| ISL5585BIM | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:3.3V Ringing SLIC Family for Voice Over Broadband VOB |
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