Part Datasheet Search > Interface ICs > Intersil > HC55185AIMZ Datasheet PDF > HC55185AIMZ Datasheet Pages 1/20
HC55185AIMZ Datasheet - Intersil
| Manufacturer: | Intersil |
| Category: | Interface ICs |
| Case Package: | PLCC-28 |
| Description: | SLIC 1CH 67dB 45mA 5V/-18V/-24V/-28V 28Pin PLCC |
| Pictures: |
HC55185AIMZDatasheet PDF
Page:
of 20 Go
If the format of the manual is confusing, please download and read the original PDF file.
1
FN4831.15
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 888-468-3774
| Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
Copyright Intersil Americas Inc. 2001-2006, 2012. All Rights Reserved. RSLIC18™ is a trademark of Intersil Americas Inc.
All other trademarks mentioned are the property of their respective owners.
HC55185
VoIP Ringing SLIC Family
The RSLIC-VoIP family of
ringing subscriber line
interface circuits (RSLIC)
supports analog Plain Old
Telephone Service (POTS) in
short and medium loop length, wireless and wireline
applications. Ideally suited for remote subscriber units, this
family of products offers flexibility to designers with high
ringing voltage and low power consumption system
requirements.
The RSLIC-VoIP family operates to 100V, which translates
directly to the amount of ringing voltage supplied to the end
subscriber. With the high operating voltage, subscriber loop
lengths can be extended to 500Ω (i.e., 5,000 feet) and
beyond.
Other key features across the product family include: low
power consumption, ringing using sinusoidal or trapezoidal
waveforms, robust auto-detection mechanisms for when
subscribers go on or off hook, and minimal external discrete
application components. Integrated test access features are
also offered on selected products to support loopback
testing as well as line measurement tests.
There are five product offerings of the HC55185 with each
version providing voltage grades of high battery voltage and
longitudinal balance. The voltage feed amplifier design uses
low fixed loop gains to achieve high analog performance
with low susceptibility to system induced noise.
Block Diagram
Features
• Onboard Ringing Generation
• Compatible with Existing HC5518x Devices
• Low Standby Power Consumption (75V, 65mW)
• Reduced Idle Channel Noise
• Programmable Transient Current Limit
• Improved Off Hook Software Interface
• Integrated MTU DC Characteristics
• Low External Component Count
• Silent Polarity Reversal
• Pulse Metering and On Hook Transmission
• Tip Open Ground Start Operation
• Balanced and Unbalanced Ringing
• Thermal Shutdown with Alarm Indicator
• 28 Lead Surface Mount Packaging
• Reduced Footprint Micro Leadframe Packaging
• Dielectric Isolated (DI) High Voltage Design
• QFN Package Option
- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat
No Leads - Product Outline
- Near Chip Scale Package Footprint; Improves PCB
Efficiency and has a Thinner Profile
• Pb-free (RoHS compliant)
Applications
• Voice Over Internet Protocol (VoIP)
• Cable Modems
• Voice Over DSL (VoDSL)
• Short Loop Access Platforms
• Remote Subscriber Units
• Terminal Adapters
Related Literature
• AN9814, “HC5518XEVAL Evaluation Board User’s Guide”
• AN9824
, “SPICE Model Tutorial of the RSLIC18™ AC
Loop”
• Interfacing to DSP CODECs (Contact Factory)
• TB379 “Thermal Characterization of Packaged
Semiconductor Devices”
• AN9922
, “Thermal Characterization and Board Level
Modeling of the RSLIC18 in the MLFP Package”
VRS
VRX
VTX
-IN
VFB
F2
F1
F0
ILIM
SW-
RTD DET
ALM
2-WIRE
PORT
POL CDC VBHVBL
BSEL SWC
TRANSIENT
CURRENT
LIMIT
SW+
TIP
RING
TL
RD E0
BATTERY
SWITCH
RINGING
PORT
4-WIRE
PORT
TEST
ACCESS
TRANSMIT
SENSING
CONTROL
LOGIC
DETECTOR
LOGIC
DC
CONTROL
Data Sheet February 9, 2012