April 1997
PBA 3357/3
Dual Channel Complete Line
Interface Circuit, DCLIC
Description
The PBA 3357/3 is a Dual Channel Complete Line Interface Circuit (DCLIC)
manufactured in thick-film technology.
The PBA 3357/3 Dual CLIC consists of two Ericsson SLIC´s, two Combo 1 Codecs
and all other necessary components to interface two seperate analogue extensions to
the PCM highway.
Key Features
•
Constant Current
DC performance at V
BAT
=-40,0 V
I
LDC
=min 17.3 mA at R
LOOP
=1800
Ω
Two Software programmable receive
gain ranges: (-3.5/-7.0) or
(0/-3.5) dBr. Software receive
gain range is selectable via
hardware wiring
Simple serial control interface, 8 bit
Controlled Power-on state:
Open circuit, Receive channel off
and all realys inactive
Polarity reversal
Receive channel can be turned off
On-Hook Transmission
Three relay drivers/line;
a total of six relay drivers
Terminating impedance
Z
TR
=200
Ω+
(680
Ω
// 100 nF)
Longitudinal balance; typ 60 dB
Nominal V
BAT
= - 48 V
Few additional external
componets needed
Small physical size: 34.4 x 71.1 mm
•
•
50
RTCA
RT
RIPA
RING
XA
TIPX
A
RRLYA
TESTRLYA
5
6
RingTrip
Net work
9
8
7
14
Relay
Driver
GV1A
GV2A
TSXA
FSA
MCLKA
DXA
DRA
DET
A
SCLKA
SDI
B
LCLKA
SCLKB
LCLKB
SDIA
51
56
•
SLIC
A
52
Receive
Gain
Receive
Channel
On/Off
COMBO
A
54
55
53
48
44
18
45
•
•
•
•
•
•
•
•
•
RLYA
RLYB
15
Relay
42
Relay
Driver
Driver
Control
Interface
(ASIC)
16
17
46
20
TESTRLYB
RRLYB
TIPXB
RINGXB
RTRIPB
RTCB
GND
V
EE
V
CC
V
BAT
41
39
36
37
34
33
Ring Trip
Net work
DETB
DRB
DXB
MCLKB
FSB
TSXB
GV2B
GV1B
Relay
Driver
Receive
Channel
On/Off
Receive
Gain
25
27
SLIC
B
COMBO
26
B
24
28
23
22
1,10,29,35,38
2, 30
12,31
4,11,32,40
Figure 1: Block Diagram
4-1
PBA 3357/3
Absolute Maximum Ratings
Parameter
Symbol
Min
Max
Unit
Temperature
Storage temperature range
Power Supply
Positive Supply voltage with respect to Ground (GND)
Negative Supply voltage with respect to Ground
Battery voltage with respect to Ground
Ring Relay Driver
Relay Supply voltage
Current
Test Relay Driver
Relay Supply voltage
Current
Additional Relay Driver
Relay Supply voltage
Current
TIPX and RINGX terminals
Voltage (each terminal), Continous (with respect to GND)
Voltage (each terminal), Pulse t
ON
< 10 ms. t
REP
>10 s, (Note 1)
Voltage (each terminal), Pulse t
ON
< 1
µs.
t
REP
>10 s, (Note 1)
Voltage (each terminal), Pulse t
ON
< 250 ns. t
REP
>10 s, (Note 1)
Current (each terminal)
V
TA
, V
RA
V
TA
, V
RA
V
TA
, V
RA
V
TA
, V
RA
I
DCMET
-70
-70
-90
-120
-105
1
5
10
15
105
V
V
V
V
mA
V
RLY
I
RLY
-30
V
CC
70
V
mA
V
TRLY
I
TRLY
V
BAT
V
CC
80
V
mA
V
RRLY
I
RRLY
V
BAT
V
CC
80
V
mA
V
CC
V
EE
V
BAT
-0,4
-6,5
-70
+6,5
+0,4
+0,4
V
V
V
T
stg
-40
+125
°C
Recommended Operating Conditions
Parameter
Symbol
Min
Typical
Max
Unit
Temperature
Ambient temperature range, Operating
Ambient temperature range, Test
Power Supply
Positive Supply voltage with respect to Ground (GND)
Negative Supply voltage with respect to Ground
Batteryvoltage with respect to Ground
V
CC
V
EE
V
BAT
+4,75
-5,25
-56
+5 +5,25
-5 -4,75
-48
-44
V
V
V
T
amb
T
amb
0
+23
+70
°C
°C
Electrical Characteristics
T
amb
= 0 - 70
°C,
V
CC
= +5 V
±
5 %, V
EE
=-5 V
±
5 %, V
BAT
=-44 - -56 V, R
LDC
= 600
Ω,
Z
N
=200
Ω+
(680
Ω//100
nF) See also fig 7
Parameter
Condition
Min
Typical
Max
Unit
Battery Feed Characteristics
Line Current
Line Current
Line Voltage
Battery Feed Characteristics, Polarity Reversad
Line Current
Line Current
Line Voltage
R
L
≤1800 Ω
R
L
= 1800
Ω,
V
BAT
= -40V
R
L
=
∞ Ω,
V
BAT
= -48 V
-28,0
-39
-18,0
-17,3
-35
mA
mA
V
R
L
≤
1800
Ω
R
L
= 1800
Ω,
V
BAT
= -40V
R
L
=
∞ Ω,
V
BAT
= -48 V
18,0
17,3
35
28,0
39
mA
mA
V
4-2
PBA 3357/3
Electrical Characteristics cont.
Parameter
Condition
Min
Typical
Max
Unit
Loop Current Detector
Loop Resistance R
L
Loop Resistance R
L
Loop Resistance R
L
Loop Resistance R
L
Off hook Detection delay time
Dial Pulse Distortion,
(Note 6)
Ring Trip Detector,
(Note 6)
Delay time from Off hook ringing to
detection. DET from High to Low
DET minimum output low, "0" time
Ring Relay Driver
On-state Voltage
Test Relay Driver
On-state Voltage
Additonal Relay Driver
On-state Voltage
Power Dissipation per Line
Active (Off hook)
Active (Off hook)
Stand-By (On hook)
(Note 5)
Active (On hook),
(Note 5)
Gain, Absolute
The absolute reference level at the
2-wire interface, 0 dBm0
Transmit (A-D), Li=0,0 dBr
Receive (D-A), Lo= 0,0 dBr
Receive (D-A), Lo= -3,5 dBr
Receive (D-A), Lo= -7,0 dBr
Receive (D-A) cancellation
Attenuation / Frequency Distortion
Transmit connection (A-D)
(CCITT Q552 3.1.1.5)
Reference:
f = 1014 Hz = 200-300 Hz
f = 300-400 Hz
f = 400-600 Hz
f = 600-2400 Hz
f = 2400-3000 Hz
f = 3000-3400 Hz
Reference:
f = 1014 Hz
f = 200-400 Hz
f = 400-600 Hz
f = 600-2400 Hz
f = 2400-3000 Hz
f = 3000-3400 Hz
-0,3
-0,3
-0,3
-0,3
-0,3
-0,3
0,0
-
0,0 +1,0
0,0 +0,75
0,0 +0,35
0,0 +0,55
0,0 +1,5
dB
dB
dB
dB
dB
dB
P= 1mW, Z
TR
= 200Ω+(680Ω//100nF)
f= 1014 Hz
f= 1014 Hz, Level: -10 dBm0
f= 1014 Hz, Level: -10 dBm0
f= 1014 Hz, Level: -10 dBm0
f= 1014 Hz, Level: -10 dBm0
f= 1014 Hz, Level: -10 dBm0
0,9008
-0,3
-0,4
-3,9
-7,4
0,0
0,0
-3,5
-7,0
+0,4
+0,3
-3,2
-6,7
-50
V
RMS
dB
dB
dB
dB
dB
I
OL
= 25 mA
V
BAT
= - 48 V
R
L
= 500
Ω
R
L
= 0
Ω
R
L
≥
20 kΩ
R
L
≥
20 kΩ
1300
1600
360
400
mW
mW
mW
mW
(V
CC
-1,0)
V
I
OL
= 25 mA
(V
CC
-2,0)
(V
CC
-1,8)
V
I
OL
= 25 mA
(V
CC
-2,0)
(V
CC
-1,8)
V
R
L
= 1800
Ω,
U
RG
= 60 V
-
20
30
150
ms
ms
Active, DET output High ("1")
Stand-by, DET output High ("1")
Active, DET output Low ("0")
Stand-by, DET output Low ("0")
-
10 pulses/s,
Period 1000
±
100 ms,
(Note 2)
20
20
2,3
2,3
100
10
kΩ
kΩ
kΩ
kΩ
ms
ms
-10
0
Receive connection (D-A)
(CCITT Q552 3.1.1.5)
-0,3
-0,3
-0,3
-0,3
-0,3
0,0 +1,0
0,0 +0,75
0,0 +0,35
0,0 +0,55
0,0 +1,5
dB
dB
dB
dB
dB
4-3
PBA 3357/3
Electrical Characteristics cont.
Parameter
Condition
Min
Typical
Max
Unit
Variation of Gain with Input Level,
(Note 7)
Transmit (A-D) and
Receive (D-A) connection
(CCITT Q552 3.1.1.4)
Reference: f = 1014 Hz, Level -10 dBm0
Input level = -55 to -50 dBm0
Input level = -50 to -40 dBm0
Input level = -40 to -3 dBm0
Input level = -3 to +3 dBm0
Input level = +3 dBm0,
V
BAT
= - 44V R
L
= 1800Ω
Li = 0 dBr
Input level = -45 dBm0
Input level = -40 dBm0
Input level = -30 dBm0
Input level = -20 dBm0
Input level = -10 dBm0
Input level = 0 dBm0
Lo = 0 dBr
Input level = -45 dBm0
Input level = -40 dBm0
Input level = -30 dBm0
Input level = -20 dBm0
Input level = -10 dBm0
Input level = 0 dBm0
Lo = -3,5 dBr
Input level = -45 dBm0
Input level = -40 dBm0
Input level = -30 dBm0
Input level = -20 dBm0
Input level = -10 dBm0
Input level = 0 dBm0
Lo = -7,0 dBr
Input level = -45 dBm0
Input level = -40 dBm0
Input level = -30 dBm0
Input level = -20 dBm0
Input level = -10 dBm0
Input level = 0 dBm0
Li = 0 dBr
Lo = 0, -3,5 or -7,0 dBr
f= 50 to 4000 Hz
f= 50 to 4000 Hz
f= 50 to 4000 Hz
35
10
25
-1,5
-0,5
-0,3
-0,5
-2,5
0,0
0,0
0,0
0,0
0,0
+1,5
+0,5
+0,3
+0,5
+2,5
dB
dB
dB
dB
dB
Signal to Total Distortion,
(Note 7)
Transmit (A-D) connection
(CCITT Q552 3.3.3)
19,9
24,9
32,9
35,0
35,0
35,0
19,9
24,9
32,9
35,0
35,0
35,0
18,5
23,2
31,2
34,4
35,0
35,0
14,5
19,5
28,8
33,8
35,0
35,0
-66
-70
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm0p
dBm0p
dB
dB
dB
Receive (D-A) connection
(CCITT Q552 3.3.3)
Receive (D-A) connection
(CCITT Q552 3.3.3)
Receive (D-A) connection
(CCITT Q552 3.3.3)
Idle Channel Noise, (CCITT Q552 3.3.2)(Note
8)
Transmit (A-D) connection
Receive (D-A) connection
Power Supply Rejection Ratio (PSRR)
V
CC
to Analog Interface
V
EE
to Analog Interface
V
BAT
to Analog Interface
4-4
PBA 3357/3
Electrical Characteristics cont.
Parameter
Condition
Min
Typical
Max
Unit
Impedance
Nominal Impedance, Z
TR
Return Loss
(CCITT Q552 2.1.1.2)
Z
TR
= 200
Ω
+ (680
Ω
// 100 nF)
Longitudinal Balance, L-T
(CCITT Q552 2.2.2)
Terminal Balance Return Loss, TBRL
(CCITT Q552 3.1.8.1)
Note 3
f= 300 Hz
f= 500 to 2000 Hz
f= 3400 Hz
f= 300 to 600 Hz
f= 600 to 3400 Hz
Note 4
f= 300 Hz
f= 500 to 2500 Hz
f= 3400 Hz
ZN="Worst Terminating condition
encountered in normal operation"
Open Circuit, f = 200 to 3600 Hz
Short Circuit, f = 200 to 3600 Hz
Input level: -25 dBm0
f= 4600 to 72000 Hz
In-band signal
Input level: 0 dBm0
f= 300 to 3400 Hz
Out-band signal (f= 4600 - 72000 Hz)
2nd or 3rd order, 4-tone, A-D
2nd or 3rd order, 4-tone, D-A
14
18
14
40
46
30
35
30
60
60
dB
dB
dB
dB
dB
16
20
16
20
30
20
dB
dB
dB
Stability Balance Return Loss,SBRL
Only applicable when Lo = -3,5 or -7 dBr
2,0
2,0
dB
dB
Outband Signalling
Transmit (A-D) connection
(CCITT Q552 3.1.6)
Receive (D-A) connection,
(Note 7)
(CCITT Q552 3.1.7)
Intermodulation
-41
-41
-70
-73
0,0
0,0
2,0
2,2
-20
-10
-20
-10
0,8
0,6
V
CC
V
CC
+20
+10
+20
+10
dB
dB
dBm0
dBm0
V
V
V
V
µA
µA
µA
µA
-50
dBm0
-25
dBm0
Crosstalk
Input Crosstalk
Output Crosstalk
Digital Inputs
Input Low voltage
Input High voltage
Input Low current
Input High current
Inputs: SDI, SCLK, LCLK
Other Inputs
Inputs: SDI, SCLK, LCLK
Other Inputs
Inputs: SDI, SCLK, LCLK
Other Inputs
Inputs: SDI, SCLK, LCLK
Other Inputs
CCITT Q552 3.1.4.1 (far-end) FEXT
CCITT Q552 3.1.4.2 (far-end) FEXT
4-5
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