ZL49010/11, ZL49020/21, ZL49030/31
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
t
ID
t
DO
f
ACK
t
PAD
20
1.0
100
3.0
140
20
40
3
13
3
20
15
40
dB
dB
dB
dBm
dBm
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
MHz
ns
1,2,3,4,5,12
7,9,12
8,10,12
16
16
16
16
IDDQ
≤
100µA
ZL49010/ZL49030
ZL49011/ZL49031
Note 14
ZL490x0
ZL490x0
ZL490x1
ZL490x1
ZL490x1
ZL490x1
13,15
1MHz f
ACK
,
13,15
13,15
13a Powerdown time
13b Powerup time
14
15
16
17
18
19
20
21
22
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)
Interdigit pause accept (DStD
logic output)
Interdigit pause reject (DStD logic
output)
Data shift rate 40-60% duty cycle
Propagation delay
(ACK to Data Bit)
‡
* Test Conditions
30
50
ns
Data hold time (ACK to SD)
t
DH
Typical figures are at 25
°
C and are for design aid only: not guaranteed and not subject to production testing
1. dBm refers to a reference power of 1 mW delivered into a 600 ohms load.
2. Data sequence consists of all DTMF digits.
3. Tone on = 40 ms, tone off = 40 ms.
4. Signal condition consists of nominal DTMF frequencies.
5. Both tones in composite signal have an equal amplitude.
6. Tone pair is deviated by
±
1.5%
±
2 Hz.
7. Bandwidth limited (0-3 kHz) Gaussian noise.
8. Precise dial tone frequencies are 350 Hz and 440 Hz (
±
2%).
9. Referenced to lowest level frequency component in DTMF signal.
10. Referenced to the minimum valid accept level.
11. Both tones must be within valid input signal range.
12. Internal guard time for ZL490x1 = 20 ms.
13. Timing parameters are measured with 70 pF load at SD output.
14. Time duration between PWDN pin changes from ‘1‘ to ‘0‘ and ESt/DStD becomes active.
15. Guaranteed by design and characterization. Not subject to production testing.
16. Value measured with an applied tone of 450 Hz.
9
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
