MT8888CE1 Zarlink, MT8888CE1 Datasheet - Page 19

• Manufacturer Part Number: MT8888CE1
• Description: DTMF TXRX 3.58MHz CMOS 5V 20-Pin PDIP Tube
• Manufacturer: Zarlink

Specifications of MT8888CE1

• Package: 20PDIP
• Operating Frequency: 3.58 MHz
• Typical Supply Current: 7 mA
• Typical Operating Supply Voltage: 5 V
• Minimum Operating Supply Voltage: 4.75 V
• Maximum Operating Supply Voltage: 5.25 V

AC Electrical Characteristics
† Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25
* *See “Notes” following AC Electrical Characteristics Tables.
AC Electrical Characteristics
† Characteristics are over recommended operating conditions unless otherwise stated
‡ Typical figures are at 25
AC Electrical Characteristics
user selectable as per Figures 5, 6 and 7.
† Characteristics are over recommended operating conditions unless otherwise stated
‡ Typical figures are at 25
1
2
3
4
5
6
7
1
2
3
4
1
2
3
4
X
Accept Bandwidth
Lower freq. (REJECT)
Upper freq. (REJECT)
Call progress tone detect level (total
power)
Minimum tone accept duration
Maximum tone reject duration
Minimum interdigit pause duration
Maximum tone drop-out duration
R
Positive twist accept
Negative twist accept
Freq. deviation accept
Freq. deviation reject
Third tone tolerance
Noise tolerance
Dial tone tolerance
Characteristics
Characteristics
Characteristics
°
°
°
C, V
C, V
C, V
DD
DD
DD
=5 V, and for design aid only: not guaranteed and not subject to production testing
=5 V, and for design aid only: not guaranteed and not subject to production testing
= 5 V, and for design aid only: not guaranteed and not subject to production testing.
†
†
†
- Call Progress
- DTMF Reception -
- Voltages are with respect to ground (V
Sym.
Zarlink Semiconductor Inc.
±1.5%± 2Hz
- Voltages are with respect to ground (V
MT8888C
Sym.
Sym.
±3.5%
t
t
f
t
Min.
f
REC
REC
t
HR
f
LR
DO
ID
A
Typical DTMF tone accept and reject requirements. Actual values are
19
Min.
Min.
310
-30
Typ.
-16
-12
22
SS
‡
Typ.
Typ.
) unless otherwise stated. f
290
540
40
20
40
20
Max.
‡
‡
8
8
Max.
Max.
500
Units
SS
dB
dB
dB
dB
dB
), unless otherwise stated.
Units
Units
dBm
Hz
Hz
Hz
ms
ms
ms
ms
C
2,3,6,9
2,3,6,9
2,3,5
2,3,5
2,3,4,5,9,10
2,3,4,5,7,9,10
2,3,4,5,8,9
=3.579545 MHz
@ -25 dBm,
Note 9
@ -25 dBm
@ -25 dBm
Conditions
Conditions
Notes*
Data Sheet