MT88E46AS1 Zarlink, MT88E46AS1 Datasheet - Page 12

• Manufacturer Part Number: MT88E46AS1
• Description: Caller ID CMOS 3.58MHz 3.3V/5V 20-Pin SOIC Tube
• Manufacturer: Zarlink

Specifications of MT88E46AS1

• Package: 20SOIC
• Telecommunication Standards Supported: Bellcore GR-30-CORE|SR-TSV-002476|TIA/EIA-716|TIA/EIA-777
• Fabrication Technology: CMOS
• Maximum Data Rate: 1.212 KBd
• Typical Operating Supply Voltage: 3.3|5 V
• Typical Supply Current: 4.3 mA
• Minimum Operating Temperature: -40 °C
• Maximum Operating Temperature: 85 °C
• Operating Frequency: 3.58 MHz

MT88E46
12
Unless stated otherwise, resistors are 1%, 0.1Watt; capacitors are 5%, 6.3V.
For 1000Vrms, 60Hz isolation from Tip to Earth and Ring to Earth:
R1,R2
If the 1000Vrms is handled by other methods then this circuit has to meet the FCC Part 68 Type B Ringer requirements:
R1,R2
Common to both sets of R1,R2 and C1,C2:
R3,R4
R8, R9
R13
C3,C4
C5
D1-D4
Xtal
Vdd =
GS1 Gain
R5
R6
R7
In a telephone adjunct box application where there is no hybrid or speech IC, if the GS2 gain with respect to Tip/Ring is to be set to the same as
GS1, the GS2 op-amp can be connected as a voltage follower to the GS1 output as shown in Figure 5.
RING
R13 is required only if both FSK
interface mode 0 and power down
features are used.
TIP
= To Microcontroller
= From Microcontroller
430K, 0.5W, 5%, 475V minimum
(e.g. IRC type GS-3)
432K, 0.1W, 1%, 56V minimum
34K
464K
100K, 20%. Required only if both FSK interface mode 0 and power down features are used.
2n2
100n, 20%
Diodes. 1N4148 or equivalent
3.579545MHz, 0.1% crystal
5V±10%
0dB
53K6
60K4
464K
C2
(FSK Interface Mode 1 selected)
C1
Figure 8 - Application Circuit: MEI Compatible Type 2 Telephone
R2
R1
D3
3V±10%
-4.0dB (preliminary)
34K0
38K3
294K
D1
D4
R13
D2
R5
R3
R4
Vss
Xtal
R6
R7
C1,C2
C1,C2
Vdd =
GS2 Gain
R10
R11
R12
TIP
RING
V
IN1+
IN1-
GS1
Vss
OSC1
OSC2
CB0
DCLK
DATA
2n2, 1332V minimum
2n2, 212V minimum
REF
Telephone
Hybrid or
Speech IC
(Symbolic)
5V±10%
0dB
53K6
60K4
464K
MT88E46
DR/DET
IN2+
GS2
CB2
CB1
IN2-
Vdd
Rx+
Rx-
CD
NC
Tx+
Tx-
IC
3V±10%
-4.0dB (preliminary)
34K0
38K3
294K
R12
R11
Microphone
C5 should be connected
directly across the Vdd
and Vss pins.
Speaker
R8
R9
R10
C3
C4
± 10% power
supply
C5
Data Sheet