- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371776 > HC9P5504B-9 (HARRIS SEMICONDUCTOR) EIA/ITU PABX SLIC with 40mA Loop Feed PDF資料下載
參數(shù)資料
| 型號： | HC9P5504B-9 |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | EIA/ITU PABX SLIC with 40mA Loop Feed |
| 中文描述： | TELECOM-SLIC, PDSO24 |
| 文件頁數(shù)： | 6/9頁 |
| 文件大?。?/td> | 87K |
| 代理商： | HC9P5504B-9 |
56
Functional Diagram
24
20
+IN
The non-inverting analog input of the spare operational amplifier.
25
21
RX
Receive Input, 4-Wire Side - A high impedance analog input which is internally biased. Capacitive coupling
to this input is required. AC signals appearing at this input differentially drive the Tip feed and Ring feed
terminals, which in turn drive tip and ring through 300
of feed resistance on each side of the line.
26
22
C
4
Capacitor #4 - An external capacitor to be connected between this terminal and analog ground. This ca-
pacitor prevents false ground key indication and false ring trip detection from occurring when longitudinal
currents are induced onto the subscriber loop from near by power lines and other noise sources. This ca-
pacitor is also required for the proper operation of ring trip detection. Typical value is 0.5
μ
F, to 1.0
μ
F, 20V.
This capacitor should be nonpolarized.
27
23
AG
(Note 5)
Analog Ground - To be connected to zero potential and serves as a reference for the transmit output (TX)
and receive input (RX) terminals.
28
24
TX
Transmit Output, 4-Wire Side - A low impedance analog output which represents the differential voltage
across Tip and Ring. Transhybrid balancing must be performed (using the SLIC microcircuit’s spare op
amp) beyond this output to completely implement two to four wire conversion. This output is unbalanced
and referenced to analog ground. Since the DC level of this output varies with loop current, capacitive cou-
pling to the next stage is essential.
1, 8, 15, 22
NC
No internal connection.
NOTE:
5. All grounds (AG, BG, and DG) must be applied before V
B
+ or V
B
-. Failure to do so may result in premature failure of the part. If a user wishes
to run separate grounds off a line card, the AG must be applied first.
Pin Descriptions
(Continued)
28 PIN
PLCC
24 PIN
DIP/SOIC
SYMBOL
DESCRIPTION
LOOP
MONITORING
RING
CONTROL
2 WIRE
LOOP
SECONDARY
PROTECTION
LINE
DRIVERS
TIP
RING
V
B
-
V
B
-
PD
POWER DENIAL
150
RING
150
RF
BG
150
TF
TIP
RD
RC
RS
RING SYNC
RING COMMAND
RING
TRIP
SHD
GKD
OUT
RX
RECEIVE
INPUT
SLIC MICROCIRCUIT
1/2 RING
RELAY
V
B
-
RING
VOLTAGE
RFS
1/2 RING
RELAY
150
SWITCH HOOK
DETECTION
GROUND KEY
DETECTION
BATTERY
FEED
LOOP
CURRENT
LIMITER
DIFF
AMP
TX
TRANSMIT
OUTPUT
+
-
+1
-1
OP
AMP
+IN
-IN
+
-
HC-5504B
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HC3-5504B-5 | IC-VLTG REG 135V-1A |
| HC3-5504B-9 | IC; Mounting Type:Through Hole; Package/Case:7-SIP |
| HC-5504B1 | ITU Low Cost, PABX SLIC With 40mA Loop Feed |
| HC-5504B | EIA/ITU PABX SLIC with 40mA Loop Feed |
| HC3-5504DLC-5 | SLIC Subscriber Line Interface Circuit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HC9P5504DLC-5 | 制造商:Harris Corporation 功能描述: |
| HC9P5504DLC-9 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:SLIC Subscriber Line Interface Circuit |
| HC9P5509 WAF | 制造商:Harris Corporation 功能描述: |
| HC9P5509A1-5 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:SLIC Subscriber Line Interface Circuit |
| HC9P5509B3999 WAF | 制造商:Harris Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。