tea1069n NXP Semiconductors, tea1069n Datasheet - Page 16

• Manufacturer Part Number: tea1069n
• Description: Versatile Speech/dialler/ringer With Music-on-hold
• Manufacturer: NXP Semiconductors

Philips Semiconductors
T
In this system digits are transmitted as two tones
simultaneously, the so called Dual-Tone Multi-Frequency
(DTMF) system. Tone digits are separated by a pause
time. Valid keys are the digits [0] to [9], [ ], [#] and
[PAUSE].
The DTMF dialling mode, the tone burst/pause times and
the access pause time depend on the diode options: PTS,
TBT, APT and APT2.
1998 Jan 08
handbook, full pagewidth
ONE DIALLER
Versatile speech/dialler/ringer with
music-on-hold
t
t
t
t
t
t
b
m
idp
rc
holdover
interflash
= break time.
= make time.
= recall time.
= interdigit pause time.
= hold-over time.
= interflash hold-over time (only for TEA1069A).
:
PINS
MOH/DMO
MUTE
DP/FL
KEYS
TONE
AND
MUTE
t idp
[3]
Fig.13 Timing diagram in pulse dialling mode.
t b
t m
t m
t holdover
[recall]
16
t rc
The MUTE pin is an open drain output which requires a
pull-up resistor. MUTE is HIGH when V
power-on reset trip level and when RESET is HIGH.
Figure 14 shows the timing diagram in tone dialling mode
when successively keys [3], [3], [RECALL] and [4] are
dialled.
t holdover
t interflash
[4]
TEA1069; TEA1069A
MBH201
Product specification
DD
is below