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參數(shù)資料
| 型號： | ATTL7583BAJ-DT |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | SPECIALTY TELECOM CIRCUIT, PDSO28 |
| 封裝： | PLASTIC, SOG-28 |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 398K |
| 代理商： | ATTL7583BAJ-DT |
22
Lucent Technologies Inc.
Data Sheet
February 2001
L7583A/B/C/D Line Card Access Switch
Description (continued)
The L7583Bxx and L7583Dxx versions provide only an
integrated diode bridge along with current limiting and ther-
mal shutdown (see Figure 2 for version B). This will cause
positive faults to be directed to ground and negative faults to
battery. In either polarity, faults are reduced by the current-
limit and/or thermal shutdown mechanisms.
To protect the L7583 from an overvoltage fault condition,
use of a secondary protector is required. The secondary pro-
tector must limit the voltage seen at the tip/ring terminals to
prevent the breakdown voltage of the switches from being
exceeded. To minimize stress on the solid-state contacts, use
of a foldback- or crowbar- type secondary protector is rec-
ommended. With proper choice of secondary protection, a
line card using the L7583 will meet all relevant ITU-T,
LSSGR, FCC, or UL* protection requirements.
The L7583 operates off of a 5 V supply only. This gives the
device extremely low idle and active power dissipation and
allows use with virtually any range of battery voltage. This
makes the L7583 especially appropriate for remote power
applications such as DAML or FOC/FITL or other Bellcore
TA 909 applications where power dissipation is particularly
critical.
A battery voltage is also used by the L7583, only as a refer-
ence for the integrated protection circuit. The L7583 will
enter an all OFF state upon loss of battery.
During power ringing, to turn on and maintain the ON state,
the ring access switch and ring test switch will draw a nomi-
nal 2 mA or 4 mA from the ring generator.
The L7583A/B/C/D device is packaged in a 24-pin, plastic
DIP (L7583AF/BF/CF/DF) and in a 28-pin,
plastic SOG (L7583AAJ/BAJ/CAJ/DAJ).
* UL is a registered trademark of Underwriters Laboratories, Inc.
Pin Information
12-2364.a (F)
Note: Shown with A/C version protection. The 24-pin DIP is available
with either A/C or B/D version protection.
Figure 1. 24-Pin, Plastic DIP (600 mil)
12-2365.d (F)
Note: Shown with B/D version protection. The 28-pin SOG is available
with either A/C or B/D version protection.
Figure 2. 28-Pin, Plastic SOG
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
VBAT
RBAT
RLINE
NC
FGND
NC
TLINE
VDD
SW1
8
9
10
LATCH
RRINGING
TTESTout
SW2
SW3
SW4
SW5
SW7
SW9
SW8
SW10
SW6
TTESTin
TBAT
TRINGING
NC
INTESTin
RTESTout
RTESTin
NC
11
12
INRING
DGND
TSD
INTESTout
CONTROL
LOGIC
SCR
AND
TRIP
CKT
28
27
26
25
24
23
22
20
19
18
17
21
16
15
1
2
3
4
5
6
7
8
VBAT
RBAT
RLINE
NC
FGND
NC
TLINE
VDD
SW1
9
10
11
12
LATCH
RRINGING
NC
SW2
SW3
SW4
SW5
SW7
SW9
SW8
SW10
SW6
TTESTin
TBAT
TRINGING
TTESTout
INTESTin
RTESTout
RTESTin
NC
13
14
INRING
DGND
TSD
INTESTout
NC
CONTROL
LOGIC
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| ATTL7583BAJ-D | SPECIALTY TELECOM CIRCUIT, PDSO28 |
| ATTL7583BF | SPECIALTY TELECOM CIRCUIT, PDIP24 |
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| ATTL7583CAJDT | 制造商:AGERE 功能描述:New |
| ATTL7583CAJ-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Line Card Access Switch |
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