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參數(shù)資料
| 型號： | LUCL9312AP-D |
| 英文描述： | Line Interface and Line Access Circuit Forward Battery SLIC and Ringing Relay for TR-57 Applications |
| 中文描述： | 線路接口和線路接入電路轉(zhuǎn)發(fā)電池SLIC和振鈴繼電器的訓練班- 57應用 |
| 文件頁數(shù)： | 34/40頁 |
| 文件大小： | 709K |
| 代理商： | LUCL9312AP-D |
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34
Data Sheet
July 2001
Forward Battery SLIC and Ringing Relay for TR-57 Applications
L9312 Line Interface and Line Access Circuit
Agere Systems Inc.
ac Applications
(continued)
First-Generation Codec ac Interface Net-
work: Resistive Termination
The following reference circuit shows the complete
SLIC schematic for interface to the Agere T7504 first-
generation codec for a resistive termination imped-
ance. For this example, the ac interface was designed
for a 600
resistive termination and hybrid balance
with transmit gain and receive gain set to 0 dBm.
Also, this example illustrates the device with a single
battery operation, fixed current limit, and fixed loop clo-
sure threshold. This is a lower feature application
example.
Resistor R
GN
is optional. It compensates for any mis-
match of input bias voltage at the RCVN/RCVP inputs.
If it is not used, there may be a slight offset at tip and
ring due to mismatch of input bias voltage at the
RCVN/RCVP inputs. It is very common to simply tie
RCVN directly to ground in this particular mode of oper-
ation. If used, to calculate R
GN
, the impedance from
RCVN to ac ground should equal the impedance from
RCVP to ac ground.
12-3580 (F)
Figure 14. ac Equivalent Circuit
R
P
Z
T
+
–
R
P
V
T/R
I
T/R
V
S
Z
T/R
+
–
RING
A
V
= –1
A
V
= 1
VITR
CURRENT
SENSE
TIP
+
–
R
T3
R
RCV
R
HB1
R
T6
RCVN
RCVP
R
X
VGSX
VF
X
IN
VFR
1/4 T7504 CODEC
R
GP
2.4 V
–0.300 V/mA
A
V
= 4
L9312
VF
X
IP
18
18
20
20
BREAK
SWITCH
BREAK
SWITCH
V
REF
V
REF
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LUCL9312AP-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Line Interface and Line Access Circuit Forward Battery SLIC and Ringing Relay for TR-57 Applications |
| LUCL9312GP-D | 制造商:AGERE 制造商全稱:AGERE 功能描述:Line Interface and Line Access Circuit Forward Battery SLIC and Ringing Relay for TR-57 Applications |
| LUCL9312GP-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Line Interface and Line Access Circuit Forward Battery SLIC and Ringing Relay for TR-57 Applications |
| LUCL9313AP-D | 制造商:AGERE 制造商全稱:AGERE 功能描述:Line Interface and Line Access Circuit Full-Feature SLIC and Ringing for TR-57 Applications |
| LUCL9313AP-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Line Interface and Line Access Circuit Full-Feature SLIC and Ringing for TR-57 Applications |
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