- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367494 > L9312 Line Interface and Line Access Circuit Forward Battery SLIC and Ringing Relay for TR-57 Applications PDF資料下載
參數(shù)資料
| 型號： | L9312 |
| 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： | L9312 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁當前第34頁第35頁第36頁第37頁第38頁第39頁第40頁
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
相關PDF資料 |
PDF描述 |
|---|---|
| L9313 | Line Interface and Line Access Circuit Full-Feature SLIC and Ringing for TR-57 Applications |
| L9350 | Single Peripheral Driver |
| L9355 | Dual Peripheral Driver |
| L9500A | High-Voltage Ringing SLIC for VolP Applications |
| L9653M | Analog IC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L9313 | 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 |
| L9324 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual Peripheral Driver |
| L9326 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| L-932P3C | 制造商:Kingbright Corporation 功能描述: |
| L-9331 | 制造商:Ideal Industries Inc 功能描述:L-9331 |
發(fā)布緊急采購，3分鐘左右您將得到回復。