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參數(shù)資料
| 型號： | L7590C |
| 廠商： | Lineage Power |
| 英文描述： | Telephone Ringing Driver(電話振鈴驅(qū)動器) |
| 中文描述： | 電話振鈴驅(qū)動（電話振鈴驅(qū)動器） |
| 文件頁數(shù)： | 5/10頁 |
| 文件大小： | 269K |
| 代理商： | L7590C |
Lucent Technologies Inc.
5
Data Sheet
June 1998
L7590C Telephone Ringing Driver
Application
* C
NEG
connects to V
NEG
pin at chip.
12-3058.E (F)
Figure 2. Basic Battery-Backed Ringing Application
Table 1. Parts List for Application, Ringing Driver IC
Name
L1
C1
C2
CB
Rx
R
ILIM
Value
20 mH
F, 250 V, 20%
μ
F, 20 V, 20%
0.1
μ
F, 10 V, 20%
15
, 1 W
20
to 100
Function
Part of LC output filter
Part of LC output filter
V
REF
filter
Voltage doubling capacitor
Hot insertion limiter
Current-limiter adjustment
1
1
μ
V
DD
GNDD
V
REF
V
NEG
CLK
OUT
TIP
R
P
20
RING
L7581
RELAY
PWM
SIGNAL
C1
1.0
μ
F
V
DD
L7590C
RINGING
GENERATOR
C2
1
μ
F
R
TS1
400
250 V PROT
PT
PR
RING TRIP
DETECT
SLIC
XMT
RCV
CODEC
R
P
20
V
NEG
L2
L1
L1
20 mH
GNDR
CB
0.1
μ
F
CB1
CB2
EN
R
ILIM
R
X
15
DX
DR
C
NEG
*
1.0
μ
F
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