®
HC55185
Data Sheet
October 20, 2004
FN4831.13
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.
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 Available
(RoHS Compliant)
Block Diagram
POL
ILIM
CDC
VBL
VBH
Applications
• Voice Over Internet Protocol (VoIP)
RINGING
PORT
DC
CONTROL
BATTERY
SWITCH
• Cable Modems
VRS
• Voice Over DSL (VoDSL)
• Short Loop Access Platforms
TIP
RING
TL
2-WIRE
PORT
TRANSIENT
CURRENT
LIMIT
TRANSMIT
SENSING
4-WIRE
PORT
VRX
VTX
-IN
VFB
• Remote Subscriber Units
• Terminal Adapters
Related Literature
• AN9814, User’s Guide for Development Board
DETECTOR
LOGIC
CONTROL
LOGIC
F2
F1
F0
SW+
SW-
TEST
ACCESS
• AN9824, Modeling of the AC Loop
• Interfacing to DSP CODECs (Contact Factory)
• TB379 Thermal Characterization of Packages for ICs
• AN9922, Thermal Characterization and Modeling of the
RSLIC18 in the Micro Leadframe Package
RTD RD E0 DETALM
BSEL SWC
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2001-2004. All Rights Reserved. RSLIC18™ is a trademark of Intersil Americas Inc.
All other trademarks mentioned are the property of their respective owners.
HC55185
Ordering Information
HIGH BATTERY (VBH)
PART NUMBER
HC55185AIM
HC55185AIMZ (Note)
HC55185BIM
HC55185BIMZ (Note)
HC55185CIM
HC55185CIMZ (Note)
HC55185DIM
HC55185DIMZ (Note)
HC55185ECM
HC55185ECMZ (Note)
HC55185ECR
HC55185ECRZ (Note)
HC55185FCM
HC55185FCMZ (Note)
HC55185FCR
HC55185FCRZ (Note)
HC55185GIM
HC55185GIMZ (Note)
HC55185GCM
HC55185GCMZ (Note)
HC55185GCR
HC55185GCRZ (Note)
HC5518XEVAL1
100V
85V
75V
LONGITUDINAL
BALANCE
58dB
53dB
FULL
TEST
TEMP.
RANGE °C
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
0 to 75
0 to 75
0 to 75
0 to 75
PKG.
DWG. #
N28.45
N28.45
N28.45
N28.45
N28.45
N28.45
N28.45
N28.45
N28.45
N28.45
L32.7x7*
L32.7x7*
N28.45
N28.45
L32.7x7*
L32.7x7*
N28.45
N28.45
N28.45
N28.45
L32.7x7
*
L32.7x7
*
PACKAGE
28 Ld PLCC
28 Ld PLCC (Pb-free)
28 Ld PLCC
28 Ld PLCC (Pb-free)
28 Ld PLCC
28 Ld PLCC (Pb-free)
28 Ld PLCC
28 Ld PLCC (Pb-free)
28 Ld PLCC
28 Ld PLCC (Pb-free)
32 Ld QFN
32 Ld QFN (Pb-free)
28 Ld PLCC
28 Ld PLCC (Pb-free)
32 Ld QFN
32 Ld QFN (Pb-free)
28 Ld PLCC
28 Ld PLCC (Pb-free)
28 Ld PLCC
28 Ld PLCC (Pb-free)
32 Ld QFN
32 Ld QFN (Pb-free)
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
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•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
0 to 85
0 to 85
0 to 85
0 to 85
-40 to 85
-40 to 85
•
•
•
•
0 to 85
0 to 85
0 to 85
0 to 85
Evaluation board platform, including CODEC.
Also available in Tape and Reel
*Reference “Special Considerations for the QFN Package” text.
NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination
finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-
free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020C.
Device Operating Modes
MODE
Low Power Standby
Forward Active
Unbalanced Ringing
Reverse Active
Ringing
Forward Loop Back
Tip Open
Power Denial
F2
0
0
0
0
1
1
1
1
F1
0
0
1
1
0
0
1
1
F0
0
1
0
1
0
1
0
1
E0 = 1 E0 = 0 HC55185A HC55185B HC55185C HC55185D HC55185E HC55185F HC55185G
SHD
SHD
RTD
SHD
RTD
SHD
SHD
n/a
GKD
GKD
RTD
GKD
RTD
GKD
GKD
n/a
•
•
•
•
•
•
•
•
•
•
•
•
•
•
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•
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2
FN4831.13
HC55185
Pinouts
HC55185 (PLCC)
TOP VIEW
RING
BGND
ILIM
V
BH
V
BL
V
BH
RD
V
BL
TIP
HC55185 (QFN)
TOP VIEW
BGND
RING
TIP
NC
NC
4
SW+
SW-
SWC
F2
F1
F0
E0
5
6
7
8
9
10
11
12
DET
3
2
1
28
27
26
25
24
23
22
21
20
19
RTD
CDC
V
CC
-IN
VFB
VTX
VRX
SW+
SW-
SWC
F2
F1
F0
E0
NC
1
2
3
4
5
6
7
8
32 31 30
29 28
27 26 25
24 ILIM
23 RTD
22 CDC
21 V
CC
20 -IN
19 VFB
18 VTX
17 VRX
13
ALM
14
AGND
15
BSEL
16
TL
17
POL
18
VRS
9
DET
10 11
ALM
AGND
12 13 14 15 16
TL
POL
BSEL
VRS
NC
RD
3
FN4831.13
HC55185
Absolute Maximum Ratings
T
A
= 25°C
Maximum Supply Voltages
V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +7V
V
CC
- V
BH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110V
Uncommitted Switch Voltage . . . . . . . . . . . . . . . . . . . . . . . -110V
Maximum Tip/Ring Negative Voltage Pulse (Note 8) . . . . . . VBH -15V
Maximum Tip/Ring Positive Voltage Pulse (Note 8) . . . . . . . . . . . .+8V
ESD (Human Body Model). . . . . . . . . . . . . . . . . . . . . . . . . . . . 500V
Thermal Information
Thermal Resistance (Typical)
θ
JA
(°C/W)
θ
JC
(°C/W)
PLCC (Note 1) . . . . . . . . . . . . . . . . . . .
53
N/A
QFN (Note 2) . . . . . . . . . . . . . . . . . . . .
27
1
Maximum Junction Temperature Plastic . . . . . . . . . . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C
(PLCC - Lead Tips Only)
For Recommended soldering conditions see Tech Brief TB389
Operating Conditions
Temperature Range
Commercial (C suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 85°C
Industrial (I suffix). . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 85°C
Positive Power Supply (V
CC
). . . . . . . . . . . . . . . . . . . . . . +5V,
±5%
Low Battery Power Supply (V
BL
) . . . . . . . . . . . . . -16V to -52V,
±5%
High Battery Power Supply (V
BH
)
AIM, CIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
BL
to 100V,
±5%
BIM, DIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
BL
to -85V,
±10%
EIM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
BL
to -75V,
±10%
Uncommitted Switch (loop back or relay driver) . . . . . +5V to -100V
Die Characteristics
Substrate Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
BH
Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bipolar-DI
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1.
θ
JA
for the PLCC package is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief
TB379 for details.
2.
θ
JA
for the QFN package is measured in free air with the component mounted on a high effective thermal conductivity test board with direct
attach features including conductive thermal vias.
θ
JC
, the “case temp” is measured at the center of the exposed metal pad on the package
underside. See Tech Brief 379 and AN9922 for additional information and board layout considerations.
Electrical Specifications
Unless Otherwise Specified, T
A
= -40°C to 85°C for industrial (I) grade and T
A
= 0°C to 85°C for commercial
(C) grade, V
BL
= -24V, V
BH
= -100V, -85V or -75V, V
CC
= +5V, AGND = BGND = 0V, loop current limit =
25mA. All AC parameters are specified at 600Ω 2-wire terminating impedance over the frequency band of
300Hz to 3.4kHz. Protection resistors = 0Ω.
TEST CONDITIONS
MIN
TYP
MAX
UNITS
PARAMETER
RINGING PARAMETERS
VRS Input Impedance (Note 3)
Differential Ringing Gain (Note 4)
450
Balanced Ringing, VRS to 2-Wire, R
LOAD
=
∞
Unbalanced Ringing, VRS to 2-Wire, R
LOAD
=
∞
Tip, Referenced to V
BH
/2 + 0.5 (Note 9)
Ring, Referenced to V
BH
/2 + 0.5
Balanced Ringing, VRS Input = 0.840V
RMS
Unbalanced Ringing, VRS Input = 0.840V
RMS
R
L
= 1.3 kΩ, V
T-R
= |V
BH
| -5
Active Mode, Referenced to VRS Input
Ringing Mode Referenced to the Differential
Ringing Amplitude
78
-
80
40
-
82
kΩ
V/V
V/V
Centering Voltage Accuracy
-
-
-
± 2.5
± 2.5
67
33.5
-
-
-
V
V
V
RMS
V
RMS
%
dB
dB
Open Circuit Ringing Voltage
Ringing Voltage Total Distortion
4-Wire to 2-Wire Ringing Off Isolation
2-Wire to 4-Wire Transmit Isolation
AC TRANSMISSION PARAMETERS
Receive Input Impedance (Note 3)
Transmit Output Impedance (Note 3)
4-Wire Port Overload Level
2-Wire Port Overload Level
-
-
-
-
90
80
3.0
-
-
160
-
THD = 1%
THD = 1%
3.1
3.1
-
-
3.5
3.5
-
1
-
-
kΩ
Ω
V
PK
V
PK
4
FN4831.13
HC55185
Electrical Specifications
Unless Otherwise Specified, T
A
= -40°C to 85°C for industrial (I) grade and T
A
= 0°C to 85°C for commercial
(C) grade, V
BL
= -24V, V
BH
= -100V, -85V or -75V, V
CC
= +5V, AGND = BGND = 0V, loop current limit =
25mA. All AC parameters are specified at 600Ω 2-wire terminating impedance over the frequency band of
300Hz to 3.4kHz. Protection resistors = 0Ω.
(Continued)
TEST CONDITIONS
300Hz
1kHz
3.4kHz
2-Wire Longitudinal Balance (Notes 5, 6)
Forward Active, Grade A and B
Forward Active, Grade C, D and E
4-Wire Longitudinal Balance (Notes 5, 6)
Forward Active, Grade A and B
Forward Active, Grade C, D and E
2-Wire to 4-Wire Level Linearity
4-Wire to 2-Wire Level Linearity
Referenced to -10dBm
Longitudinal Current Capability Per Wire (Note 3)
+3 to -40dBm, 1kHz
-40 to -50dBm, 1kHz
-50 to -55dBm, 1kHz
Test for False Detect
Test for False Detect, Low Power Standby
4-Wire to 2-Wire Insertion Loss
2-Wire to 4-Wire Insertion Loss
4-Wire to 4-Wire Insertion Loss
Forward Active Idle Channel Noise (Note 6)
2-Wire C-Message, T = 25°C
4-Wire C-Message, T = 25°C
Reverse Active Idle Channel Noise (Note 6)
2-Wire C-Message, T = 25°C
4-Wire C-Message, T = 25°C
DC PARAMETERS
Off Hook Loop Current Limit
Programming Accuracy
Programming Range
Off Hook Transient Current Limit
Programming Accuracy
Programming Range
Loop Current During Low Power Standby
Open Circuit Voltage (|Tip - Ring|)
Forward Polarity Only
V
BL
= -16V
V
BL
= -24V
V
BH
> -60V
Low Power Standby, Open Circuit Voltage
(Tip - Ring)
Absolute Open Circuit Voltage
TEST ACCESS FUNCTIONS
Switch On Voltage
Loopback Max Battery
LOOP DETECTORS AND SUPERVISORY FUNCTIONS
Switch Hook Programming Range
Switch Hook Programming Accuracy
Dial Pulse Distortion
Ring Trip Comparator Threshold
Ring Trip Programming Current Accuracy
Ground Key Threshold
E0 Transition, DET Output Delay
Thermal Alarm Output
IC Junction Temperature
Assumes 1% External Programming Resistor
5
-10
-
2.3
-10
-
-
-
-
-
1.0
2.5
-
12
20
175
15
+10
-
2.9
+10
-
-
-
mA
%
%
V
%
mA
µs
°C
I
OL
= 45mA
-
-
0.30
-
0.60
52
V
V
V
BL
= -48V
V
BH
> -60V
V
RG
in LPS and FA; V
TG
in RA; V
BH
> -60V
-8.5
15
-10
40
18
-
14
43
-
43
-
-
-
-
-
-
8.0
15.5
49
44.5
51.5
-53
+8.5
45
+10
100
26
-
17
-
-
-
-56
%
mA
%
mA
mA
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
MIN
-
-
-
58
53
58
53
-
-
-
20
10
-0.20
-6.22
-6.22
-
-
-
-
TYP
24
40
21
62
59
67
64
±0.025
±0.050
±0.100
-
-
0.00
-6.02
-6.02
10
4
11
5
MAX
-
-
-
1
PARAMETER
2-Wire Return Loss
UNITS
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
mA
RMS
mA
RMS
dB
dB
dB
dBrnC
dBrnC
dBrnC
dBrnC
-
-
-
-
-
-
-
-
-
+0.20
-5.82
-5.82
13
7
14
8
5
FN4831.13
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