MT88L89
Advance Information
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
fA
310
500
Hz
@ -25 dBm,
Note 9
2
3
4
Lower freq. (REJECT)
Upper freq. (REJECT)
fLR
290
540
Hz
Hz
@ -25 dBm
@ -25 dBm
fHR
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=3V, 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
tREC
tREC
tID
40
20
40
20
ms
ms
ms
ms
tOD
† Characteristics are over recommended operating conditions unless otherwise stated
‡ Typical figures are at 25°C, VDD=3V, 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
tDP
tDA
tPStb3
tPStRX
5
11
4
14
ms Note 11
ms Note 11
0.5
8.5
13
8
µs
µs
See Figure 7
See Figure 7
I
N
Delay St to RX -RX
0
3
5
Tone burst duration
tBST
tPS
tBSTE
tPSE
VHOUT
VLOUT
dB
50
50
52
52
ms DTMF mode
ms DTMF mode
ms Call Progress mode
ms Call Progress mode
dBm RL=10kΩ
6
Tone pause duration
7
Tone burst duration (extended)
Tone pause duration (extended)
High group output level
Low group output level
Pre-emphasis
100
100
-15.1
-17.1
104
104
-11.1
-13.1
T
O
N
E
8
9
10
11
12
13
14
15
16
17
18
19
dBm RL=10kΩ
O
U
T
2
dB
dB
RL=10kΩ
P
Output distortion (Single Tone)
THD
-35
25 kHz Bandwidth
R =10kΩ
L
Frequency deviation
fD
RLT
±0.7
±1.5
50
%
fC=3.579545 MHz
Output load resistance
Crystal/clock frequency
Clock input rise and fall time
Clock input duty cycle
Capacitive load (OSC2)
10
kΩ
fC
3.5759 3.5795 3.5831 MHz
X
T
A
L
tCLRF
DCCL
CLO
110
60
ns
%
Ext. clock
Ext. clock
40
50
30
pF
† 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.
4-140
MITEL [ MITEL NETWORKS CORPORATION ]
