MT8889CN Zarlink Semiconductor, Inc., MT8889CN Datasheet - Page 20

• Manufacturer Part Number: MT8889CN
• Description: Integrated DTMF Transceiver with Adaptive Micro Interface
• Manufacturer: Zarlink Semiconductor, Inc.

AC Electrical Characteristics
-
† Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25 C, V
* *See “Notes” following AC Electrical Characteristics Tables.
AC Electrical Characteristics
-
† Characteristics are over recommended operating conditions unless otherwise stated
‡ Typical figures are at 25 C, V
AC Electrical Characteristics
-
† Characteristics are over recommended operating conditions unless otherwise stated
‡ Typical figures are at 25 C, V
AC Electrical Characteristics
- Voltages are with respect to ground (V
Voltages are with respect to ground (V
Typical DTMF tone accept and reject requirements. Actual values are user selectable as per Figures 5, 6 and 7.
Voltages are with respect to ground (V
1
2
3
4
5
6
7
1
2
3
4
1
2
3
4
1
2
3
4
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
X
O
N
E
N
T
I
Tone present detect time
Tone absent detect time
Delay St to b3
Delay St to RX
Positive twist accept
Negative twist accept
Freq. deviation accept
Freq. deviation reject
Third tone tolerance
Noise tolerance
Dial tone tolerance
Characteristics
Characteristics
Characteristics
Characteristics
0
DD
DD
DD
-RX
=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.
3
†
†
†
†
- Call Progress
- DTMF Reception
SS
SS
SS
), unless otherwise stated.
) unless otherwise stated. f
), unless otherwise stated.
Sym
Zarlink Semiconductor Inc.
t
t
Sym
PStRX
PStb3
t
t
DP
DA
1.5% 2Hz
MT8889C
Sym
Sym
t
t
f
REC
REC
t
f
Min
3.5%
t
HR
f
LR
DO
ID
A
20
C
Min
=3.579545 MHz
0.5
3
Min
310
Min
-30
Typ
-16
-12
22
Typ
‡
13
11
4
8
Typ
Typ
290
540
40
20
40
20
‡
Max
‡
‡
8
8
Max
8.5
14
Max
Max
500
Units
dB
dB
dB
dB
dB
Units
Units
Units
dBm
ms
ms
ms
ms
ms
ms
Hz
Hz
Hz
s
s
Note 11
Note 11
See Figure 7
See Figure 7
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
Conditions
Notes*
Data Sheet