參數資料
型號： TEA1069H
廠商： NXP SEMICONDUCTORS
元件分類： 無繩電話/電話
英文描述： Versatile speech/dialler/ringer with music-on-hold
中文描述： TELEPHONE MULTIFUNCTION CKT, PQFP44
封裝： PLASTIC, QFP-44
文件頁數： 26/44頁
文件大?。?/td> 301K
代理商： TEA1069H
1998 Jan 08
26
Philips Semiconductors
Product specification
Versatile speech/dialler/ringer with
music-on-hold
TEA1069; TEA1069A
Mute state.
When the [HOLD/MUTE] key is pressed (HMS =
off
) the
mute state is entered and MUTE becomes LOW.
In mute state a music-on-hold melody is generated by
output TONE. Pin MOH/DMO is HIGH (diode
GOS =
off
) during this state.
This signal can be used to adjust the volume of the
TONE pin. Since MUTE is LOW the TONE output is
transmitted to the telephone line. The mute state is left
when:
– [HOLD/MUTE] is pressed, set returns to either
handset- or hands-free state
– a dial action is started.
Dialling state
During the dial-keys entries the TEA1069 and TEA1069A
start immediately with transmission of the digit(s); the
minimum transmission time is unaffected by the speed of
the entry. Transmission continues as long as further
dial-keys entries have to be processed.
Fig.24 Volume control state machine.
(1) VOL1 = HIGH, VOL2 = HIGH.
(2) VOL1 = LOW, VOL2 = HIGH.
(3) VOL1 = HIGH, VOL2 = LOW.
(4) VOL1 = LOW, VOL2 = LOW.
handbook, halfpage
MBH212
HIGHEST
HIGH
[VOL
]
[VOL
+
]
LOW
[VOL
]
[
VOL
+
]
LOWEST
[VOL
]
[VOL
]
[VOL
+
]
[VOL
+
]
(4)
(3)
(2)
(1)
However when keying-in is much faster then dialling-out,
then the 32 digit dialling register will overflow. When this
occurs the dialling is stopped and the error beep will be
generated.
There are two dial modes: pulse dialling and tone dialling.
The initial dialling mode is determined by option PTS.
The state machine which controls the dial mode is shown
in Fig.25.
Pulse dialling.
In this mode all valid keys are dialled by the pulse dialler.
When during pulse dialling key [
/T] is pressed, the
TEA1069 and TEA1069A switch over to tone dialling
(mixed mode dialling). After the switch-over, valid keys
are dialled by the tone dialler. The temporary tone mode
is terminated by going on-hook or recall.
Tone dialling.
The ICs convert valid keys into data for the on-chip
DTMF generator. Tones are transmitted via output
TONE with minimum tone burst/pause duration.
The maximum tone burst/pause duration is equal to the
key pressing/release time.
Register recall (flash/earth).
The [RECALL] key will result in a flash or earth action.
Access pause.
When the [PAUSE/LNR] button is not the first key
pressed, an access pause is entered for repertory or
redialling procedures. When an access pause is
executed MUTE is HIGH. During manual dialling no
access pauses are dialled.
Last Number Redial (LNR).
If the first key pressed is the [PAUSE/LNR] button, the
number stored in the redial register is recalled and
transmitted. A maximum number of 32 digits can be
Fig.25 Dialling mode state machine.
handbook, halfpage
MBH213
PULSE DIALLING
PTS = off
TONE DIALLING
[
*
/T
]
[
RECALL
]
+
PTS = on
相關PDF資料
PDF描述
TEA1069N Versatile speech/dialler/ringer with music-on-hold
TEA1081 Supply circuit with power-down for telephone set peripherals
TEA1081T Supply circuit with power-down for telephone set peripherals
TEA1083 Call progress monitor for line powered telephone sets
TEA1083AT Call progress monitor for line powered telephone sets
相關代理商/技術參數
參數描述
TEA1069N 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Versatile speech/dialler/ringer with music-on-hold
TEA1081 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Supply circuit with power-down for telephone set peripherals
TEA1081T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Supply circuit with power-down for telephone set peripherals
TEA1083 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Call progress monitor for line powered telephone sets
TEA1083A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Call progress monitor for line powered telephone sets
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