tea1069a NXP Semiconductors, tea1069a Datasheet - Page 17
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tea1069a
Manufacturer Part Number
tea1069a
Description
Versatile Speech/dialler/ringer With Music-on-hold
Manufacturer
NXP Semiconductors
Datasheet
1.TEA1069A.pdf
(44 pages)
- Current page: 17 of 44
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Philips Semiconductors
The DC-level at the TONE output measures
composed by transmitting 2 tones simultaneously at pin TONE. The frequency tolerance for the tones at output TONE
is shown in Table 4.
Table 4 DTMF frequency tolerances
1998 Jan 08
handbook, full pagewidth
Versatile speech/dialler/ringer with
music-on-hold
t
t
t
t
t
Note: in case of manual dialling only the minimum tone burst and pause time values depend on the chosen diode option, the maximum tone burst/pause
times are equal to the real key press/release time.
t
p
holdover
rc
interflash
DTMF FREQUENCY
= burst time.
= pause time.
= recall time.
= hold-over time.
= interflash hold-over time (only for TEA1069A).
697
770
852
941
1209
1336
1477
MUTE
DP/FL
TONE
KEYS
FREQUENCY AT TONE
Fig.14 Timing diagram in tone dialling mode.
t t
697.90
770.46
850.45
943.23
1206.45
1341.66
1482.21
[3]
t p
1
2
V
DD
t p + t holdover
and the impedance is typically 100 . DTMF frequencies are
[3]
[recall]
17
t rc
DEVIATION (%)
+0.13
+0.06
+0.24
+0.42
+0.35
0.18
0.21
t holdover
t interflash
TEA1069; TEA1069A
[4]
MBH202
DEVIATION (Hz)
Product specification
+0.90
+0.46
+2.23
+5.66
+5.21
1.55
2.55
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