MT8889C/MT8889C-1
AC Electrical Characteristics†- Call Progress - Voltages are with respect to ground (VSS), unless otherwise stated.
‡
Characteristics
Accept Bandwidth
Sym
Min
Typ
Max
Units
Conditions
1
f
310
500
Hz
@ -25 dBm,
A
Note 9
2
3
4
Lower freq. (REJECT)
Upper freq. (REJECT)
f
290
540
Hz
Hz
@ -25 dBm
@ -25 dBm
LR
f
HR
Call progress tone detect level (total
power)
-30
dBm
† Characteristics are over recommended operating conditions unless otherwise stated
‡ Typical figures are at 25°C, VDD=5V, and for design aid only: not guaranteed and not subject to production testing
AC Electrical Characteristics†- DTMF Reception - Typical DTMF tone accept and reject requirements. Actual
values are user selectable as per Figures 5, 6 and 7.
‡
Characteristics
Sym
Min
Typ
Max
Units
Conditions
1
2
3
4
Minimum tone accept duration
Maximum tone reject duration
Minimum interdigit pause duration
Maximum tone drop-out duration
t
t
40
20
40
20
ms
ms
ms
ms
REC
REC
t
ID
t
OD
† Characteristics are over recommended operating conditions unless otherwise stated
‡ Typical figures are at 25°C, VDD=5V, and for design aid only: not guaranteed and not subject to production testing
AC Electrical Characteristics† - Voltages are with respect to ground (VSS), unless otherwise stated.
‡
Characteristics
Sym
Min
Typ
Max
Units
Conditions
T
O
N
E
1
2
3
4
Tone present detect time
Tone absent detect time
Delay St to b3
t
t
3
11
4
14
ms Note 11
ms Note 11
DP
DA
0.5
8.5
t
13
8
µs
µs
See Figure 7
See Figure 7
PStb3
I
N
Delay St to RX -RX
t
PStRX
0
3
5
Tone burst duration
t
50
50
52
52
ms DTMF mode
BST
6
Tone pause duration
t
ms DTMF mode
PS
7
Tone burst duration (extended)
Tone pause duration (extended)
High group output level
Low group output level
Pre-emphasis
t
100
100
-6.1
-8.1
0
104
104
-2.1
-4.1
3
ms Call Progress mode
ms Call Progress mode
BSTE
T
O
N
E
8
t
PSE
9
V
dBm R =10kΩ
HOUT
L
10
11
12
13
14
15
16
17
18
19
V
dBm R =10kΩ
L
LOUT
O
U
T
dB
2
dB
dB
R =10kΩ
P
L
Output distortion (Single Tone)
THD
-35
25 kHz Bandwidth
R =10kΩ
L
Frequency deviation
f
±0.7
±1.5
50
%
f =3.579545 MHz
D
C
Output load resistance
Crystal/clock frequency
Clock input rise and fall time
Clock input duty cycle
Capacitive load (OSC2)
R
10
kΩ
LT
f
3.5759 3.5795 3.5831 MHz
C
X
T
A
L
t
110
60
ns
%
Ext. clock
Ext. clock
CLRF
DC
40
50
CL
C
30
pF
LO
† Timing is over recommended temperature & power supply voltages.
‡ Typical figures are at 25°C and for design aid only: not guaranteed and not subject to production testing.
4-121
MITEL [ MITEL NETWORKS CORPORATION ]
