Datenblatt-pdf.com


HC1-5502B-9 Schematic ( PDF Datasheet ) - Intersil Corporation

Teilenummer HC1-5502B-9
Beschreibung EIA/ITU PABX SLIC with 30mA Loop Feed
Hersteller Intersil Corporation
Logo Intersil Corporation Logo 




Gesamt 9 Seiten
HC1-5502B-9 Datasheet, Funktion
Data Sheet
HC-5502B
February 1999 File Number 2884.5
EIA/ITU PABX SLIC with 30mA Loop Feed
The Intersil SLIC incorporates many of the BORSHT
functions on a single IC chip. This includes DC battery feed,
a ring relay driver, supervisory and hybrid functions. This
device is designed to maintain transmission performance in
the presence of externally induced longitudinal currents.
Using the unique Intersil dielectric isolation process, the
SLIC can operate directly with a wide range of station
battery voltages.
The SLIC also provides selective denial of power. If the PBX
system becomes overloaded during an emergency, the SLIC
will provide system protection by denying power to selected
subscriber loops.
The Intersil SLIC is ideally suited for the design of new digital
PBX systems, by eliminating bulky hybrid transformers.
Ordering Information
TEMP. RANGE
PART NUMBER
(oC)
PACKAGE
PKG. NO.
HC1-5502B-5
HC1-5502B-9
HC3-5502B-5
HC4P5502B-5
HC9P5502B-5
0 to 75
-40 to 85
0 to 75
0 to 75
0 to 75
24 Ld CERDIP F24.6
24 Ld CERDIP F24.6
24 Ld PDIP E24.6
28 Ld PLCC N28.45
24 Ld SOIC M24.3
Pinouts
HC-5502B
(PDIP, CERDIP, SOIC)
TOP VIEW
TIP 1
RING 2
VB+ 3
C1* 4
C3 5
DG 6
RS 7
RD 8
TF 9
RF 10
VB- 11
BG 12
24 TX
23 AG
22 C4
21 RX
20 +IN
19 -IN
18 OUT
17 C2
16 RC
15 PD
14 GKD
13 SHD
Features
• Capable of 12V or 5V (VB+) Operation
• Monolithic Integrated Device
• DI High Voltage Process
• Compatible With Worldwide PBX Performance
Requirements
• Controlled Supply of Battery Feed Current for Short Loops
(30mA)
• Internal Ring Relay Driver
• Low Power Consumption During Standby
• Switch Hook, Ground Key and Ring Trip Detection
Functions
• Selective Denial of Power to Subscriber Loops
Applications
• Solid State Line Interface Circuit for Analog and Digital PBX
Systems
• Direct Inward Dial (DID) Trunks
• Voice Messaging PBXs
• Related Literature
- AN549, The HC-5502S/4X Telephone Subscriber Line
Interface Circuits (SLIC)
- AN571, Using Ring Sync with HC-5502A and HC-5504
SLICs
HC-5502B
(PLCC)
TOP VIEW
4 3 2 1 28 27 26
C15
C3 6
DG 7
N/C 8
RS 9
RD 10
TF 11
25 RX
24 +IN
23 -IN
22 N/C
21 OUT
20 C2
19 RC
12 13 14 15 16 17 18 OPTIONAL
47 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999






HC1-5502B-9 Datasheet, Funktion
HC-5502B
Pin Descriptions (Continued)
28 PIN
PLCC
24 PIN
DIP/SOIC
SYMBOL
DESCRIPTION
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 amplifiers, which in turn drive tip and ring through 300of feed resistance on each
side of the line.
26 22 C4 Capacitor #4 - An external capacitor to be connected between this terminal and analog ground. This
capacitor prevents false ground key indication and false ring trip detection from occurring when lon-
gitudinal currents are induced onto the subscriber loop from nearby power lines and other noise
sources. This capacitor is also required for the proper operation of ring trip detection. Typical value
is 0.5µF to 1.0µF, 20V. This capacitor should be nonpolarized.
27 23 AG Analog Ground - To be connected to zero potential and serves as a reference for the transmit output
(Note 5) (TX) and receive input (RX) terminals.
28 24 TX Transmit Output, 4-Wire Side - A low impedance analog output which represents the differential volt-
age 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 coupling to the next stage is essential.
1, 8, 5, 22
NC No internal connection.
NOTE:
5. All grounds (AG, BG, and DG) must be applied before VB+ or VB-. 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.
Functional Diagram
RING
VOLTAGE
RING SYNC
RING COMMAND
RS
RC
RD
TIP
RING
RELAY
150
TIP
150
2 WIRE
LOOP
VB-
RING
SECONDARY
PROTECTION
TF
VB-
BG
RF
150
RING
150
POWER DENIAL
PD
RING
CONTROL
RING
TRIP
LOOP
MONITORING
DIFF
AMP
-
+
SHD SWITCH HOOK
DETECTION
GKD GROUND KEY
DETECTION
TX TRANSMIT
OUTPUT
BATTERY
FEED
+1
LOOP
CURRENT
LIMITER
LINE
DRIVERS
-1
+
-
OP
AMP
SLIC MICROCIRCUIT
OUT
+IN
-IN
RX RECEIVE
INPUT
52

6 Page







SeitenGesamt 9 Seiten
PDF Download[ HC1-5502B-9 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
HC1-5502B-5EIA/ITU PABX SLIC with 30mA Loop FeedIntersil Corporation
Intersil Corporation
HC1-5502B-9EIA/ITU PABX SLIC with 30mA Loop FeedIntersil Corporation
Intersil Corporation

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche