MT8888C Zarlink Semiconductor, MT8888C Datasheet - Page 19

• Manufacturer Part Number: MT8888C
• Description: Integrated DTMF Transceiver with Intel Micro Interface
• Manufacturer: Zarlink Semiconductor

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
- Voltages are with respect to ground (V
† Characteristics are over recommended operating conditions unless otherwise stated
‡ Typical figures are at 25
AC Electrical Characteristics
- Typical DTMF tone accept and reject requirements. Actual values are 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
- Voltages are with respect to ground (V
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
=5V, and for design aid only: not guaranteed and not subject to production testing
=5V, and for design aid only: not guaranteed and not subject to production testing
= 5V, and for design aid only: not guaranteed and not subject to production testing.
†
†
SS
- Call Progress
- DTMF Reception
), unless otherwise stated.
Sym
SS
) unless otherwise stated. f
Zarlink Semiconductor Inc.
±1.5%± 2Hz
MT8888C
Sym
±3.5%
Sym
t
t
f
t
f
REC
REC
Min
t
HR
DO
f
LR
ID
A
19
Min
310
Min
-30
Typ
-16
-12
22
‡
Typ
Typ
290
540
40
20
40
20
C
Max
‡
‡
=3.579545 MHz
8
8
Max
Max
500
Units
dB
dB
dB
dB
dB
Units
Units
dBm
Hz
Hz
Hz
ms
ms
ms
ms
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
@ -25 dBm,
Note 9
@ -25 dBm
@ -25 dBm
Conditions
Conditions
Notes*
Data Sheet