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參數(shù)資料
| 型號： | STLC3080 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | SUBSCRIBER LINE INTERFACE CIRCUIT |
| 中文描述： | 用戶線路接口電路 |
| 文件頁數(shù)： | 8/23頁 |
| 文件大小： | 201K |
| 代理商： | STLC3080 |
When a fault is detected the line current is limited
in order to avoid any damage on the device itself
and alsoon the externaltransistor.
MISCELLANEOUS
- Thermal overload: the integrated thermal pro-
tectionis activated when Tj reaches150
°
Ctyp.;
the Slic is forced in Power-down mode, DET
and AL are set Low. The RELR relay driver is
turned off while it is still possible to control
REL0 and REL1 throughR0 andR1 inputs.
-
One low cost external transistor allows to re-
duce the power dissipated in the SLIC itself al-
lowing the use of extreme small size package
(TQFP44). The external transistor size/package
can be selected depending on the max. power
requestedby the particularapplication.
-
The SLIC supports loop start lines and gives
the possibility to set loop current indicator
thresholdby means of one external resistor.
EXTERNALCOMPONENTS LIST
To set the SLIC into operation the following pa-
rameters have to be defined:
- The DC feeding resistance ”Rfeed” defined as
the resistance of the traditional feeding sys-
tem (most common Rfeed values are: 400,
800, 1000 ohm).
- The AC SLIC impedanceat line terminals ”Zs”
to which the return loss measurements is re-
ferred. It can be real (typ. 600 ohm) or com-
plex.
- The equivalent AC impedance of the line ”Zl”
used for evaluation of the trans-hybrid loss
performance (2/4wire conversion).It can be a
complex impedance.
- The value of the two protectionresistors Rp in
series with the line termination.
- The reverse polarity transition time defined as
”
V
TR
/
T”.
- The constantcurrent limit value ”I
lim
”.
- Rth: sets the OFF/Hook DETection threshold
Once, the above parameters are defined, it is
possible to calculate all the external components
using the followingtable.
EXTERNAL COMPONENTS
Name
CVCC
CVB
R
REF
(*)
Function
Formula
Typical Value
100nF
±
20%
100nF
±
20% 100V
30.1k
±
1%
Positive Supply Filter
Battery Supply Filter
Internal current reference
programming resistor
I
REF
=
1.16
R
REF
C
SVR
Battery ripple rejection capacitance
C
SVR
=
1
2
π
fp
1.3M
see Appendix D
100nF
±
10% 100V
@ fp = 1.22Hz
C
RT
Ring Trip capacitance
470nF
±
20% 6V
@ 25Hz
1.5k
±
1%
R
DC
DC sinthesized resistance
programming resistor
AC/DC splitter capacitance
R
DC
= 5[R
feed
-2Rp]
R
DC
≥
1k
C
AC
C
AC
=
1
2
π
fsp
R
DC
R
S
= 25
2Rp
Z
AC
= 25[Zs - 2Rp]
ZA = 25
Zs
ZB = 25
Zl
10
μ
F
±
20% 15V
@ fsp = 10Hz
R
S
ZAC
ZA
ZB
C
COMP
Protection resistor image
2 wire AC impedance
SLIC impedance balancing network
Line impedance balancing network
AC feedback compensation
capacitance
2.5k
±
1%
12.5k
±
1%
15k
±
1%
15k
±
1%
220pF
±
20%
@ fo = 250kHz
C
COMP
=
2
2
π
fo
[100
Rp]
RR
RS1
RS2
RT
Q
EXT
RPT1
RPR1
Feeding resistance for Ring Injection
Sensing resistor for Ring Trip
Sensing resistor for Ring Trip
Feeding resistance for Ring Injection
External transistor
Line series resistor
Line series resistor
≥
400
1000
RR
1000
RR
≥
0
(1)
≥
20
≥
20
600
2W
600k
±
1%
600k
±
1%
0
BD140
20
1/4W
±
1%
STLC3080
8/23
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STLC3080EVAL | 功能描述:網(wǎng)絡(luò)開發(fā)工具 Eval Board STLC3080 RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| STLC3080R-EVAL | 功能描述:網(wǎng)絡(luò)開發(fā)工具 Eval Board STLC30R80 RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| STLC3080S | 功能描述:射頻無線雜項(xiàng) Subscriber Ln Intrfc RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| STLC3080TR | 功能描述:電信線路管理 IC SUBSCRIBER CIRCUIT RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| STLC3085 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Integrated Pots Interface for Home Access Gateway and WLL |
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