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參數(shù)資料
| 型號： | TEA1069 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Versatile speech/dialler/ringer with music-on-hold |
| 中文描述： | 多功能語音/撥號器/帶音樂振鈴上持有 |
| 文件頁數(shù)： | 22/44頁 |
| 文件大?。?/td> | 301K |
| 代理商： | TEA1069 |
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1998 Jan 08
22
Philips Semiconductors
Product specification
Versatile speech/dialler/ringer with
music-on-hold
TEA1069; TEA1069A
K
EY TONE
:
PIN
KT/EARTH
Every time a valid key is pressed a keytone is generated
with a frequency of 606 Hz and a duration of 30 ms. This
function is selected by the diode GOS =
off
. KT/EARTH is
LOW when V
DD
is below power-on reset trip level and
when RESET is HIGH.
V
OLUME CONTROL
:
PINS
VOL1
AND
VOL2
Both pins can control the volume of the ringer and/or the
hands-free circuit. The state of VOL1/VOL2 is controlled
by a state machine as depicted in Fig.24.
VOL1 and VOL2 are push-pull outputs. Both are set LOW
when V
DD
is below power-on reset trip level and when
RESET is HIGH.
M
USIC
-
ON
-
HOLD
:
PIN
MOH/DMO
When the dialler is in the hold state (see Fig.23) a melody
is generated via pin TONE. In this state pin MOH/DMO can
be used via diode GOS =
off
as an enable signal for the
hardware to indicate that the tone should be switched to
the telephone line.
MOH/DMO is a push-pull output. It is set LOW when V
DD
is below power-on reset trip level and when RESET is
HIGH.
H
ANDS
-
FREE
:
PIN
HF
During the on-line state, the hands-free output pin HF is
used for enabling the hands-free hardware. The pin will
change state depending on specific key-sequences
(see Fig.23).
HF is a push-pull output. It is set LOW when V
DD
is below
power-on reset trip level and when RESET is HIGH.
HOLD
MODE
:
PIN
HOLD
One way to terminate the hold state (see Fig.23) is a
change in state of the signal at pin HOLD. This input
should reflect the line current. If current is flowing the
signal at pin HOLD should be HIGH, if not it should be
LOW.
This pin is not debounced. The signal applied should be
filtered by the hardware. HOLD is HIGH when V
DD
is below
power-on reset trip level and when RESET is HIGH.
Key sequences
The behaviour of the TEA1069 and TEA1069A can be
modelled as a State Transition Diagram (STD) shown in
Fig.21.
Fig.21 TEA1069 and TEA1069A dialler/ringer states.
handbook, full pagewidth
MBH209
STANDBY
power-on
ON-LINE
RINGER
on-hook/[HOOK]
off-hook/[HOOK]
off-hook/[HOOK]
ringer signal
ringer invalid
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TEA1069A | Versatile speech/dialler/ringer with music-on-hold |
| TEA1069AH | Versatile speech/dialler/ringer with music-on-hold |
| TEA1069H | Versatile speech/dialler/ringer with music-on-hold |
| TEA1069N | Versatile speech/dialler/ringer with music-on-hold |
| TEA1081 | Supply circuit with power-down for telephone set peripherals |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TEA1069A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Versatile speech/dialler/ringer with music-on-hold |
| TEA1069AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Versatile speech/dialler/ringer with music-on-hold |
| TEA1069H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Versatile speech/dialler/ringer with music-on-hold |
| 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 |
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