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
is measured with the component mounted on an evaluation board PC board in free air.
2. All grounds (AGND, BGND) must be applied before V
CC
or V
BAT
. 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 AGND must be applied first.
Electrical Specifications
Unless Otherwise Specified, Typical Parameters are at T
A
= 25
o
C, Min-Max Parameters are over
Operating Temperature Range, V
BAT
= -24V, V
CC
= +5V, AGND = BGND = 0V. All AC Parameters are speci-
fied at 600Ω 2-Wire Terminating Impedance
TEST CONDITIONS
MIN
TYP
MAX
UNITS
PARAMETER
RINGING TRANSMISSION PARAMETERS
V
RING
Input Impedance
4-Wire to 2-Wire Gain
AC TRANSMISSION PARAMETERS
RX Input Impedance
TX Output Impedance
4-Wire Input Overload Level
2-Wire Return Loss
SRL LO
ERL
SRL HI
2-Wire Longitudinal to Metallic Balance
Off Hook
4-Wire Longitudinal Balance Off Hook
Low Frequency Longitudinal Balance
Longitudinal Current Capability
Insertion Loss
2-Wire/4-Wire (Includes External Transhybrid
Amplifier with a Gain of 2.4)
4-Wire/2-Wire
4-Wire/4-Wire (Includes External Transhybrid
Amplifier with a Gain of 2.4)
(Note 3)
5.4
40
kΩ
V/V
V
RING
to Vt-r (Note 3)
300Hz to 3.4kHz (Note 3)
300Hz to 3.4kHz (Note 3)
300Hz to 3.4kHz R
L
= 1200Ω, 600Ω Reference
(Note 3)
Matched for 600Ω (Note 3)
26
30
30
Per ANSI/IEEE STD 455-1976 (Note 3) 300Hz to
3400Hz
300Hz to 3400Hz (Note 3)
I
LINE
= 40mA T
A
= 25
o
C (Note 3)
I
LINE
= 40mA T
A
= 25
o
C (Note 3)
0dBm at 1kHz, Referenced 600Ω
40
40
+1.0
108
20
kΩ
Ω
V
PEAK
35
40
40
dB
dB
dB
dB
dB
10
23
40
dBrnc
mA
RMS
±0.05
±0.05
±0.2
±0.2
±0.35
dB
dB
dB
62
HC5517B
Electrical Specifications
Unless Otherwise Specified, Typical Parameters are at T
A
= 25
o
C, Min-Max Parameters are over
Operating Temperature Range, V
BAT
= -24V, V
CC
= +5V, AGND = BGND = 0V. All AC Parameters are speci-
fied at 600Ω 2-Wire Terminating Impedance
(Continued)
TEST CONDITIONS
300Hz to 3400Hz (Note 3) Referenced to Absolute
Level at 1kHz, 0dBm Referenced 600Ω
Referenced to -10dBm (Note 3)
+3 to -40dBm
-40 to -50dBm
-50 to -55dBm
Absolute Delay
2-Wire/4-Wire
4-Wire/2-Wire
4-Wire/4-Wire
Transhybrid Loss
Total Harmonic Distortion
2-Wire/4-Wire, 4-Wire/2-Wire, 4-Wire/4-Wire
Idle Channel Noise
2-Wire and 4-Wire
(Note 3)
300Hz to 3400Hz
300Hz to 3400Hz
300Hz to 3400Hz
V
IN
= 1V
P-P
at 1kHz (Note 3,4)
Reference Level 0dBm at 600Ω
300Hz to 3400Hz (Note 3)
(Note 3)
C-Message
Psophometric (Note 3)
Power Supply Rejection Ratio
V
CC
to 2-Wire
V
CC
to 4-Wire
V
BAT
to 2-Wire
V
BAT
to 4-Wire
V
CC
to 2-Wire
V
CC
to 4-Wire
V
BAT
to 2-Wire
V
BAT
to 4-Wire
DC PARAMETERS
Loop Current Programming
Limit Range
Accuracy
Loop Current During Power Denial
Fault Currents
TIP to Ground (Note 3)
RING to Ground
TIP and RING to Ground (Note 3)
Switch Hook Detection Threshold
Ring Trip Comparator Voltage Threshold
Thermal ALARM Output (Note 3)
Dial Pulse Distortion (Note 3)
Safe Operating Die Temperature Exceeded
-
-
-
-
-0.28
140
-
30
120
150
12
-0.24
-
0.1
-
-
-
15
-0.22
160
0.5
mA
mA
mA
mA
V
o
C
PARAMETER
Frequency Response
Level Linearity
2-Wire to 4-Wire and 4-Wire to 2-Wire
MIN
-
TYP
±0.02
MAX
±0.06
UNITS
dB
-
-
-
-
-
-
±0.08
±0.12
±0.3
dB
dB
dB
-
-
-
30
-
-
-
-
-
0.95
40
-
3
-87
1.0
1.0
1.5
-
-50
-
-
µs
µs
µs
dB
dB
dBrnC
dBmp
(Note 3)
30Hz to 200Hz, R
L
= 600Ω
20
20
20
20
40
40
40
50
40
28
50
50
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
(Note 3)
200Hz to 16kHz, R
L
= 600Ω
30
20
20
20
20 (Note
5)
15
R
L
= 200Ω
-
-
-
±4
60
-
±7
mA
%
mA
ms
63
HC5517B
Electrical Specifications
Unless Otherwise Specified, Typical Parameters are at T
A
= 25
o
C, Min-Max Parameters are over
Operating Temperature Range, V
BAT
= -24V, V
CC
= +5V, AGND = BGND = 0V. All AC Parameters are speci-
fied at 600Ω 2-Wire Terminating Impedance
(Continued)
TEST CONDITIONS
MIN
TYP
MAX
UNITS
PARAMETER
Uncommitted Relay Driver
On Voltage V
OL
Off Leakage Current
TTL/CMOS Logic Inputs (F0, F1, RS, TST, RDI)
Logic ‘0’ V
IL
Logic ‘1’ V
IH
Input Current (F0, F1, RS, TST, RDI)
Input Current (F0, F1, RS, TST, RDI)
Logic Outputs
Logic ‘0’ V
OL
Logic ‘1’ V
OH
Power Dissipation On Hook
I
OL
(RDO) = 30mA
-
-
0.2
±10
0.5
±100
V
µA
0
2.0
IIH, 0V
≤
V
IN
≤
5V
IIL, 0V
≤
V
IN
≤
5V
-
-
-
-
-
-
0.8
5.5
-1
-100
V
V
µA
µA
I
LOAD
= 800µA
I
LOAD
= 40µA
V
CC
= +5V, V
BAT
= -80V, R
LOOP
=
V
CC
= +5V, V
BAT
= -48V, R
LOOP
=
-
2.7
0.3
-
300
150
280
3
2
1.9
3.6
2.6
1.8
0.6
-
-
-
-
6
5
4
7
6
4
V
V
mW
mW
mW
mA
mA
mA
mA
mA
mA
∞
∞
-
-
-
-
-
-
-
-
-
Power Dissipation Off Hook
I
CC
V
CC
= +5V, V
BAT
= -24V, R
LOOP
= 600Ω,
I
L
= 25mA
V
CC
= +5V, V
BAT
= -80V, R
LOOP
=
V
CC
= +5V, V
BAT
= -48V, R
LOOP
=
V
CC
= +5V, V
BAT
= -24V, R
LOOP
=
∞
∞
∞
I
BAT
V
CC
= +5V, V
B
- = -80V, R
LOOP
=
V
CC
= +5V, V
B
- = -48V, R
LOOP
=
V
CC
= +5V, V
B
- = -24V, R
LOOP
=
∞
∞
∞
UNCOMMITTED OP AMP PARAMETERS
Input Offset Voltage
Input Offset Current
Differential Input Resistance (Note 3)
Output Voltage Swing (Note 3)
Small Signal GBW (Note 3)
NOTES:
3. These parameters are controlled by design or process parameters and are not directly tested. These parameters are characterized upon initial
design release, upon design changes which would affect these characteristics, and at intervals to assure product quality and specification com-
pliance.
4. For transhybrid circuit as shown in Figure 3.
5. Application limitation based on maximum switch hook detect limit and metallic currents. Not a part limitation.
R
L
= 10kΩ
-
-
-
-
-
±5
±10
1
±3
1
-
-
-
-
-
mV
nA
MΩ
V
P-P
MHz
64
HC5517B
R
TF
R
+
V
RX
17
OUT 1
12
-IN 1
13
V
RING
24
V
TX
19
V
CC
2
AGND
1
BIAS
NETWORK
22
TF
25
-
R
R/2
+2V
R/20
R
R
2R
BGND
-
+
OP AMP
27
4
5
V
BAT
F1
F0
4.5K
100K
RING
SENSE 1
RING
SENSE 2
15
100K
100K
16
100K
4.5K
90K
+
25K
FAULT
DET
25K
RA
RTD
THERM
LTD
TSD
IIL LOGIC INTERFACE
TIP
SENSE
14
R
R
-
+
TA
SHD
SH
6
9
2R
RS
TST
GK
-
7
8
RFC
10
SHD
RTD
ALM
RDO
90K
26
RF
RF
+
-
90K
GM
VB/2
REF
18
NU
28
RTI
-
+
RF2
21
R = 108kΩ
3
V
REF
11
I
LIMIT
20
RDI
HC5517B DEVICE TRUTH TABLE
F1
0
0
F0
0
1
STATE
Loop power Denial Active
Power Down Latch RESET, Power on
RESET
RD Active (unbalanced ringing)
Normal Loop feed
Power Dissipation
Careful thermal design is required to guarantee that the
maximum junction temperature of 150
o
C of the device is not
exceeded. The junction temperature of the SLIC can be
calculated using:
T
J
=
T
A
+
θ
JA
(
I
CC
V
CC
+
I
BAT
V
BAT
–
( (
I
LOOP
) •
R
LOOP
) )
(EQ. 1)
2
1
1
0
1
The truth table for the internal logic of the HC5517B is provided
in the above table. This family of ringing SLICs can be config-
ured to support traditional unbalanced ringing and through
SLIC balanced ringing. The device operating states used by
through SLIC ringing applications are loop power denial and
normal feed. During loop power denial, the tip and ring amplifi-
ers are disabled (high impedance) and the DC voltage of each
amplifier approaches ground. The SLIC will not provide current
to the subscriber loop during this mode and will not detect loop
closure. Voice transmission occurs during the normal loop feed
mode. During normal loop feed the SLIC is completely opera-
tional and performs all transmission and supervisory functions.
Where T
A
is maximum ambient temperature and
θ
JA
is
junction to air thermal resistance (and is package depen-
dent). The entire term in parentheses yields the SLIC power
dissipation. The power dissipation of the subscriber loop
does not contribute to device junction temperature and is
subtracted from the power dissipation term. Operating at
85
o
C, the maximum PLCC SLIC power dissipation is 1.18W.
Likewise, the maximum SOIC SLIC power dissipation is
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