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參數(shù)資料
| 型號： | HC1-5504B-5 |
| 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, CDIP24 |
| 文件頁數(shù)： | 8/9頁 |
| 文件大?。?/td> | 265K |
| 代理商： | HC1-5504B-5 |
8-26
HC-5504DLC
Applications Diagram
FIGURE 1. TYPICAL LINE CIRCUIT APPLICATION WITH THE MONOLITHIC SLIC
Typical Component Values
C2 = 0.15
μ
F, 10V
C3 = 0.3
μ
F, 30V
C4 = 0.5
μ
F to 1.0
μ
F, 10%, 20V (Should be nonpolarized)
C5 = 0.5
μ
F, 20V
C6 = C7 = 0.5
μ
F (10% Match Required) (Note 2)
C8 = 0.01
μ
F, 100V
C9 = 0.01
μ
F, 20V,
±
20%
R1 = R2 = R3 = 100k (0.1% Match Required, 1% absolute
value) ZB = 0 for 600
Terminations (Note 2)
RB
1
= RB
2
= RB
3
= RB
4
= 150
(0.1% Match Required, 1%
absolute value)
R
S1
= R
S2
=1k
, typically.
C
S1
= C
S2
= 0.1
μ
F, 200V typically, depending on V
RING
and
line length.
Z
1
= 150V to 200V transient protection.
PTC used as ring generator ballast.
NOTES:
1. Secondary protection diode bridge recommended is a 2A, 200V type.
2. To obtain the specified transhybrid loss it is necessary for the three legs of the balance network, C6-R1 and R2 and C7-ZB-R3, to match
in impedance to within 0.3%. Thus, if C6 and C7 are 1
μ
F each, a 20% match is adequate. It should be noted that the transmit output to
C6 sees a -22V step when the loop is closed. Too large a value for C6 may produce an excessively long transient at the op amp output
to the PCM Filter/CODEC.
A 0.5
μ
F and 100k
gives a time constant of 50msec. The uncommitted op amp output is internally clamped to stay within
±
5.5V and
also has current limiting protection.
3. All grounds (AG, BG, & 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.
4. To prevent saturation of longitudinal amplifier during ringing, the ringer current should be limited to less than 30mA peak.
5. Application shows Ring injected ringing, a Balanced or Tip injected configuration may be used.
6. Pin numbers given for DIP/SOIC package.
Additional information is contained in Application Note 549, “The HC-550X Telephone SLICs’’ By Geoff Phillips
RB4
K1B
K1A
RING
RING FEED
RING FEED SENSE
TIP
V
B
-
SLIC
HC-5504DLC
R
S1
RB2
RB1
PTC
Z
1
-48V
150V PEAK (MAX)
RING GENERATOR
RING
RB3
R
S2
C
S2
SUBSCRIBER
LOOP
-48V
SYSTEM CONTROLLER
K1
8
1
9
10
3
2
1
TIP FEED
TIP
RD
OP AMP
RX
TX
+IN
-IN
OUT
C2
C3
C4
V
B
+
NEG.
BATT.
BATT.
GND.
DIG.
GND.
ANA.
GND.
POWER
DENIAL
SWITCH
HOOK
DETECT
GROUND
KEY
DETECT
RING
SYNC
RING
CMD
15
13
14
7
16
11
12
6
23
C9
4
V
B
+
C8
C4 C3 C2
+
+
21
24
20
19
18
17
5
22
C6
R1
R2
C7
C5
R3
BALANCE NETWORK
PCM
FILTER/
CODEC
SWITCHING
NETWORK
ZB
+5V TO
+12V
PRIMARY
PROTEC-
TION
C
S1
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相關(guān)代理商/技術(shù)參數(shù) |
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| HC1-5504B-7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Subscriber Line Interface Circuit |
| HC1-5504B-9 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:EIA/ITU PABX SLIC with 40mA Loop Feed |
| HC1-5504DLC-5 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:SLIC Subscriber Line Interface Circuit |
| HC1-5504DLC-9 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:SLIC Subscriber Line Interface Circuit |
| HC1-5504X | 制造商:Harris Corporation 功能描述: |
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