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參數(shù)資料
| 型號： | HC1-5504DLC-9 |
| 廠商： | INTERSIL CORP |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | SLIC Subscriber Line Interface Circuit |
| 中文描述： | TELECOM-SLIC, CDIP24 |
| 封裝： | CERAMIC, DIP-24 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 265K |
| 代理商： | HC1-5504DLC-9 |
8-22
Specifications HC-5504DLC
Uncommitted Op Amp Specifications
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Offset Voltage
-
±
5
±
10
-
mV
Input Offset Current
-
-
nA
Input Bias Current
-
20
-
nA
Differential Input Resistance
(Note 2)
-
1
-
M
Output Voltage Swing
R
L
= 10K, V
B
+ = +12V
R
L
= 10K, V
B
+ = +5V
A
VCL
= 1 (Note 2)
(Note 2)
-
±
5
±
3
-
V
PEAK
V
PEAK
-
-
Output Resistance
-
10
-
Small Signal GBW
-
1
-
MHz
Pin Descriptions
28 PIN
PLCC
24 PIN
DIP/SOIC
SYMBOL
DESCRIPTION
2
1
TIP
An analog input connected to the TIP (more positive) side of the subscriber loop through a 150
feed
resistor and a ring relay contact. Functions with the Ring terminal to receive voice signals from the
telephone and for loop monitoring purposes.
3
2
RING
An analog input connected to the RING (more negative) side of the subscriber loop through a 150
feed resistor and a ring relay contact. Functions with the Tip terminal to receive voice signals from the
telephone and for loop monitoring purposes.
4
3
RFS
Senses ring side of loop for ground key and ring trip detection. During ringing, the ring signal is insert-
ed into the line at this node and RF is isolated from RFS via a relay.
5
4
V
B
+
C3
Positive Voltage Source - Most positive supply. V
B
+ is typically 12V or 5V.
Capacitor #3 - An external capacitor to be connected between this terminal and analog ground.
Required for proper operation of the loop current limiting function, and for filtering V
B
-. Typical value
is 0.3
μ
F, 30V.
6
5
7
6
DG
Digital Ground - To be connected to zero potential and serves as a reference for all digital inputs and
outputs on the SLIC microcircuit.
9
7
RS
Ring Synchronization Input - A TTL - compatible clock input. The clock should be arranged such that
a positive pulse transition occurs on the zero crossing of the ring voltage source, as it appears at the
RFS terminal. For Tip side injected systems, the RS pulse should occur on the negative going zero
crossing and for Ring injected systems, on the positive going zero crossing. This ensures that the ring
relay activates and deactivates when the instantaneous ring voltage is near zero. If synchronization
is not required, the pin should be tied to +5V.
10
8
RD
Relay Driver - A low active open collector logic output. When enabled, the external ring relay is
energized.
11
9
TF
Tip Feed - A low impedance analog output connected to the TIP terminal through a 150
feed resistor.
Functions with the RF terminal to provide loop current, feed voice signals to the telephone set, and
sink longitudinal current.
12
10
RF
Ring Feed - A low impedance analog output connected to the RING terminal through a 150
feed
resistor. Functions with the TF terminal to provide loop current, feed voice signals to the telephone
set, and sink longitudinal current.
13
11
V
B
-
Negative Voltage Source - Most negative supply. V
B
- is typically -48V with an operational range of
-42V to -58V. Frequently referred to as “battery”.
14
12
BG
Battery Ground - To be connected to zero potential. All loop current and some quiescent current flows
into this ground terminal.
16
13
SHD
Switch Hook Detection - A low active LS TTL - compatible logic output.
17
14
GKD
Ground Key Detection - A low active LS TTL - compatible logic output. This output is enabled if the
DC current into the ring lead exceeds the DC current out of the tip lead by more than 20mA, and dis-
abled if this current difference is below an internally set threshold.
18
15
PD
Power Denial - A low active TTL - Compatible logic input. When enabled, the switch hook detect
(SHD) and ground key detect (GKD) are not necessarily valid, and the relay driver (RD) output is dis-
abled.
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| HC1-5508B3999 WAF | 制造商:Harris Corporation 功能描述: |
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