- 您現在的位置：買賣IC網 > PDF目錄367494 > L8567-32PLCC Telecommunication IC PDF資料下載
參數資料
| 型號： | L8567-32PLCC |
| 英文描述： | Telecommunication IC |
| 中文描述： | 通信集成電路 |
| 文件頁數： | 9/42頁 |
| 文件大小： | 701K |
| 代理商： | L8567-32PLCC |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當前第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頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁
Lucent Technologies Inc.
9
Data Sheet
August 1999
People’s Republic of China Applications
L8567 SLIC for
Coding Information
Table 2 shows the input state coding.
Table 2. Input State Coding
* All logic inputs are latched. The data latch is controlled by pin EN. The EN latch control is level sensitive.
When EN is high, the input data latches are active; that is, data at the B0, B1, RD1I, RD2I, and RD3I inputs are latched. The latched data will
control the state of the SLIC and drivers so that the SLIC and drivers will not respond to changes at the logic inputs while the level at EN is
high. When EN is low, the input latch is not active; therefore, data at the logic inputs will flow through the latch and immediately determine the
state of the SLIC and drivers.
If using an L758X solid-state switch, the switch is controlled directly from the T7507 codec; thus the relay drivers in the L8567 SLIC cannot be
used. If the relay drivers are not used, force them into the lowest power (not active) state by connecting RD1I, RD2I, and RD3I to ground.
B0*
1
B1*
1
RD3I* RD2I* RD1I*
X
X
State/Definition
X
Powerup, Forward Battery.
Normal talk and battery feed state. Pin PT
is positive with respect to PR. On-hook transmission is enabled. The ring
trip and loop closure detectors are active.
Powerup, Reverse Battery.
Normal talk and battery feed state. Pin PR
is positive with respect to PT. On-hook transmission is enabled. The ring
trip and loop closure detectors are active.
Low-Power Scan.
Except for off-hook supervision, all circuits are shut
down to conserve power. Pin PT is positive with respect to PR. Thermal
shutdown is active. Note that the ring trip detector is not active during the
low-power scan. To ensure that the ring trip detector is active during ring-
ing, the L8567 SLIC must be put into the forward or reverse powerup state
before applying power ringing to the loop.
Disconnect.
The tip and ring amplifiers are turned off and the SLIC goes
into a high-impedance (>100 k
) state. The L8567 will reset into this state
on powerup.
Driver RD1 Output Is Active.
Input pin RD1I is high. This will activate or
place the RD1 driver output into the on state. In the on state, the driver will
supply up to 40 mA of current (at 0.6 V) to the coil of an EMR, thus acti-
vating the EMR.
Driver RD1 Output Is Not Active
.
Input pin RD1I is low. This will place
the RD1 driver output into the off state. In the off state, the driver will not
supply current to the coil of an EMR, thus deactivating the EMR.
Driver RD2 Output Is Active.
Input pin RD2I is high. This will activate or
place the RD2 driver output into the on state. In the on state, the driver will
supply up to 40 mA of current (at 0.6 V) to the coil of an EMR, thus acti-
vating the EMR.
Driver RD2 Output Is Not Active
.
Input pin RD2I is low. This will place
the RD2 driver output into the off state. In the off state, the driver will not
supply current to the coil of an EMR, thus deactivating the EMR.
Driver RD3 Output Is Active.
Input pin RD3I is high. This will activate or
place the RD3 driver output into the on state. In the on state, the driver will
supply up to 40 mA of current (at 0.6 V) to the coil of an EMR, thus acti-
vating the EMR.
Driver RD3 Output Is Not Active
.
Input pin RD3I is low. This will place
the RD3 driver output into the off state. In the off state, the driver will not
supply current to the coil of an EMR, thus deactivating the EMR.
1
0
X
X
X
0
1
X
X
X
0
0
X
X
X
X
X
1
X
X
X
X
0
X
X
X
X
X
1
X
X
X
X
0
X
X
X
X
X
1
X
X
X
X
0
相關PDF資料 |
PDF描述 |
|---|---|
| L8567-44PLCC | Telecommunication IC |
| L8574D | CAP 15PF 50V 5% C0G SMD-0402 TR-7-PA SN100 |
| L8575 | Dual-Resistive,Low-Cost Subscriber Line Interface Circuit(SLIC) |
| L8576B | Dual Ringing SLIC |
| L8712(FECONLY) | IC TUBE FOR TO-220 508MM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| L8567-44PLCC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| L8574D | 制造商:AGERE 制造商全稱:AGERE 功能描述:L8574D Resistive Subscriber Line Interface Circuit(SLIC), Ring Relay,and Protector(SRP)for Long Loop and TR-57 Applications |
| L8575 | 制造商:Leviton Manufacturing Co 功能描述: |
| L8576B | 制造商:AGERE 制造商全稱:AGERE 功能描述:Dual Ringing SLIC |
| L8576BP | 制造商:Alcatel-Lucent 功能描述: 制造商:LUCENT 功能描述: |
發布緊急采購，3分鐘左右您將得到回復。