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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)： | 5/23頁 |
| 文件大?。?/td> | 201K |
| 代理商： | STLC3080 |
Resistive Region is programmable by means of
external resistor R
DC
, limiting current can be se-
lected by R
LIM
resistor.
ConcerningAC characteristicthe STLC3080 allows
to set2W termination impedance by means of one
external scaled impedance that may be complex.
Two to fourwireconversionisprovidedby an exter-
nal network. Such network can be avoidedin case
of applicationwith COMBOII,in this casethe twoto
four wire conversion is implemented inside the
COMBOIIby means of the programmableHybal fil-
ter.
When in ACTIVE mode it is also possible to per-
form battery reversal in soft mode (with program-
mable transition time) without affecting the AC sig-
naltransmission.
Ringing
When Ringing mode is selected the STLC3080
activates the ring relay injecting the ringing signal
on the line. As the ringtrip is detected the logicin-
dicator DET is set low and the ringing is automat-
ically disconnected without waiting for the card
controllercommand (auto ring trip).
DET remains latched Low untill the operative
mode is modified.
If required , the ringing relay drive signal RELR
can be synchronised to a clock applied to
CKRING input.
This clock is derived from the ringing signal with
proper time delay, according to the activation/de-
activationtime of the relay.
RELR is activated on the low level of CKRING
clock. The duty cycle of CKRING can be modified
in order to activate the RELR when required:
CKRING low must last 1
μ
s minimum.
If the synchronisation is not required, CKRING in-
put must be steadilykept Low.
All the STLC3080 relay drivers are open drain
with the source connectedto the RGND pin. Each
relay drivers integrates a protection structure that
allows to avoid external kick - back diodes, using
both 5Vor 12V relays.
The ring trip circuit and its behaviour is described
in AppendixD.
Ground Start.
This mode is selected when the SLIC is adopted
in a system using the Ground Start feature. In this
mode the TIP termination is set in High Imped-
ance (100k
) while the RING one is active and
fixed at Vbat +4.8V. In the case of connection of
RING termination to GND the sinked current is
limited to 30mA. When RING is connected to
GND both Off-Hook and Ground-Key detectors
become active. Power dissipation in this mode
with a -48V batteryvoltage is 100mW
High Impedance Feeding.
As Stand-By, this mode is set in On-Hook condi-
tion, with furtherreduced power consumption.
Higher power efficiencyturns back a lower immu-
nity of the Off-Hook detector to line common
mode currents.
The DC feeding shows a constantcurrent charac-
teristic (I
lim
= 17mA) followed by a resistive range
with an equivalent series resistance R
FEED
=
1600
+ 2Rp.
Thermal protection circuit is stillactive, preventing
the junction temperature, in case of fault condi-
tion, to exceed150
°
C
In High Impedance Feeding most of the circuit is
switched off, only the circuit, dedicated to Off-
Hook detection, is powered. This allows to reduce
the total power consumption in On-hookto 30mW
(typical).
The Off-Hook detection threshold is not program-
mable but definedat a fixed IDET
HI
= 8mA(max.)
I
LIM
[20
÷
50mA]
R
FEED
=
R
DC
5
+2R
P
R
FEED
= 2R
P
V
BAT
V
BAT
-7.8V
I
V
Figure b. STLC3080DCCharacteristicin
ActiveMode.
17mA
R
FEED
= 1600
+2R
P
D98TL373
V
BAT
-0.8V
I
V
Figurec. STLC3080DC Characteristicin High
Impedance Feeding
STLC3080
5/23
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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 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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