MT3170B/71B, MT3270B/71B, MT3370B/71B
Data Sheet
AC Electrical Characteristics
- voltages are with respect to V
DD
=5V
±
5%, V
SS
=0V and temperature -40 to +85
°
C unless otherwise
stated.
Characteristics
1
2
3
4
5
6
7
8
9
10
11
12
Valid input signal level
(each tone of composite signal)
Positive twist accept
Negative twist accept
Frequency deviation accept
Frequency deviation reject
Third tone tolerance
Noise tolerance
Dial tone tolerance
Supervisory tones detect level
(Total power)
Supervisory tones reject level
Energy detector attack time
Energy detector decay time
Sym.
Min.
-50
2.45
Typ.
‡
Max.
0
775
8
8
Units
dBm
mV
RMS
dB
dB
Test Conditions*
1,2,3,5,6,12
1,2,3,4,11,12,15
1,2,3,4,11,12,15
1,2,3,5,12
1,2,3,5,12,15
±1.5
%
± 2Hz
±3.5
%
-16
-12
+15
-35
-50
t
SA
t
SD
3
1.0
6.5
25
10
30
50
t
DP
t
DA
t
REC
t
REC
20
3
13
3
20
15
40
dB
dB
dB
dBm
dBm
ms
ms
ms
ms
ms
ms
ms
ms
ms
1,2,3,4,5,12
7,9,12
8,10,12
16
16
16
16
IDDQ
≤
100µA
MT3170B/3370B
MT3171B/3371B
Note 14
MT3x70B
MT3x70B
MT3x71B
MT3x71B
13a Powerdown time
13b Powerup time
14
15
16
17
Tone present detect time (ESt
logic output)
Tone absent detect time (ESt
logic output)
Tone duration accept
(DStD logic output)
Tone duration reject
(DStD logic output)
9
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
