MT91610AQ Zarlink Semiconductor, MT91610AQ Datasheet - Page 9

• Manufacturer Part Number: MT91610AQ
• Description: Description = Short Loop Subscriber Line Interface Circuit (SLIC) With 2-4 Wire Conversion, Programmable Line Impedance, Ringing Amplification And On-hook Transmission For Did ;; Package Type = Qsop ;; No. Of Pins = 36
• Manufacturer: Zarlink Semiconductor

Preliminary Information
Note: All resistors are 1/8 W, 1% unless otherwise indicated.
*Assumes Z
D1
PR1
BR
F1, F2
Protection Components
Figure 4 shows three possible combinations of protection. Depending on the application, the user can select
whether to use a resettable or non-resettable protection scheme.
Component List* for a Typical Application with a Resistive 600 Line Impendance -
Figure 4 for component designation and recommended configuration
R11
R13
C11
C13
C15
R1
R3
R5
R7
R9
C1
C3
C5
C7
C9
o
=
=
=
=
Method
= Z
1
2
3
NB
1N5819 Schottky Diode (Optional)
This device must always be fitted to ensure damages does not occur from inductive loads.
For simple applications PR1 can be replaced by a single TVS, such as 1.5KE220C, across tip
Raychem TR600-150 or equivalent
Teccor F1250T Slow-Blow Fuse
and ring. For applications requiring lightning and mains cross protection further circuitry will be
required and the following protection devices are suggested: P2353AA, P2353AB (Teccor),
THBT20011, THBT20012, THBT200S (SGS-Thomson), TISP72290, TISP7360F3D (T.I.)
= 600 , Gain 2 - 4 = -6dB, Gain 4 - 2 = -1dB.
220nF, 5%
470nF, 5%
100nF, 5%
100nF, 5%
100nF, 5%
330nF, 5%
10nF, 5%
33nF, 5%
200k
200k
300k
300k
200k
200k
51k
Slow-Blow Fuse (F1,
short out
in place
in place
F2)
Capacitor Values
Resistor Values
R10
R12
C10
C12
C14
R2
R4
R6
R8
C2
C4
C6
C8
Varistor (PR1)
in place
in place
in place
100k
470nF, 5%
100nF, 5%
100nF, 5%
330nF, 5%
100nF, 5%
330nF, 5%
4.7uF, 5%
336k7
(see Figure 6)
100k
150k
200k
10k
Breaker (BR)
short out
in place
in place
MT91610
Refer to
9