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ILA1062 Datasheet, PDF (5/9 Pages) Integral Corp. – TELEPHONE SPEECH NETWORK WITH DIALER INTERFACE
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ILA1062/ILA1062A
R8
Zbal =
x Zline = k x Zline
R1
R8
Where k is scale factor; k =
R1
The scale factor k, dependent on the value of R8, is chosen to meet the following criteria:
· compatibility with a standard capacitor from the E6 or
E12 range for Zbal
· |Zbal//R8|<<R8 fulfilling condition (a) and thus
ensuring correct
anti-sidetone bridge operation
· |Zbal + R8|>>R9 to avoid influencing the transmit gain.
In practise Zline varies considerably with the line type and length. The value chosen for Zbal should therefore
be for an average line thus giving optimum setting for short or long lines.
ABSOLUTE MAXIMUM RATING
Characteristic
Symbol
Test Condition
Min Typ Max Unit
Positive Continuous Line
VLN
Voltage
12
V
Repetitive Line Voltage During
Switch-on or Line Interruption
VLN(R)
13.2 V
Repetitive Peak Line Voltage
for a 1ms Pulse per 5s
VLN(RM)
R9 = 20W; R10 = 13W;
see Fig.6
28
V
Line Current
Iline
Input Voltage on all other Pins
VI
Total
Standard DIP
Ptot
Power
R9 = 20W; note 1
-0.7
R9 = 20W; note 2
140 mA
VCC+0.7
V
0.58 W
Dissipation DIP with heatsink
Operating Ambient
TA
Temperature
Storage Temperature
Tstg
Junction Temperature
Tj
Notes
0.67
-25
+75
oC
-40
+125 oC
+125 oC
1. Mostly dependent on the maximum required TA and on the voltage between LN and SLPE.
2. Calculated for the maximum ambient temperature specified and a maximum junction temperature of
125oC.
(Thermal Resistance RJA = 85oC/W for standard DIP and RJA = 75oC/W for special DIP with heatsink).
(1) TA=45oC; Ptot=0.94W
(2) TA=55oC; Ptot=0.82W
(3) TA=65oC; Ptot=0.71W
(4) TA=75oC; Ptot=0.58W
150
ILN (mA)
130
(1) TA=45oC; Ptot=1.07W
(2) TA = 55oC; Ptot=0.93W
(3) TA=65oC; Ptot=0.80 W
(4) TA=75oC; Ptot=0.67 W
150
ILN (mA)
130
110
(1)
90
(2)
70
(3)
(4)
50
110
(1)
90
(2)
(3)
70
(4)
50
30
2
4
6
8
10
12
VLN - VSLPE (V)
Fig.3a Safe operating area(Standard DIP)
30
2
4
6
8
10
12
VLN - VSLPE (V)
Fig.3b Safe operating area (DIP with HS)
5
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