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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)： | 7/44頁 |
| 文件大?。?/td> | 301K |
| 代理商： | TEA1069 |
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1998 Jan 08
7
Philips Semiconductors
Product specification
Versatile speech/dialler/ringer with
music-on-hold
TEA1069; TEA1069A
Fig.3 Pin configuration (SOT307-2).
handbook, full pagewidth
TEA1069H
TEA1069AH
MBH784
1
2
3
4
5
6
7
8
9
10
11
33
32
31
30
29
28
27
26
25
24
23
1
1
1
1
1
1
1
1
2
2
2
4
4
4
4
4
3
3
3
3
3
3
DTMF
KT/EARTH
CSI
XTAL1
XTAL2
RESET
CE/FDI
COL6
COL5
COL4
VEE
C
C
C
D
H
V
V
T
V
V
M
MUTE
DIODE
VCC
REG
ROW3
ROW2
ROW4
ROW5
VEE
HF
ROW1
I
S
M
+
M
G
Q
G
G
L
S
A
FUNCTIONAL DESCRIPTION
Speech part
For numbering of components refer to Figs 28 and 29.
S
UPPLIES
V
CC
, LN, SLPE, REG
AND
STAB
Power for the IC and its peripheral circuits is usually
obtained from the telephone line (see Fig.4).
The circuit creates a stabilized voltage (V
ref
= 3.7 V)
between LN and SLPE. This reference voltage is
temperature compensated and can be adjusted by means
of an external resistor R
VA
. It can be increased by
connecting an R
VA
resistor (R60) between REG and SLPE
or decreased by connecting an R
VA
resistor (R61)
between REG and LN. This internal voltage reference is
decoupled by capacitor C3 between REG and V
EE
.
This decoupling capacitor realises the set impedance
conversion from its DC value to its AC value in the audio
frequency range.
The internal transmission part of the circuitry (including the
earpiece amplifier) is supplied from V
CC
. This voltage
supply is derived from the LN voltage via a dropping
resistor (R1) and must be decoupled by a capacitor (C1)
between V
CC
and V
EE
. This supply point may also be used
to supply the dialler/ringer (V
DD
) part or external circuit e.g.
electret microphone.
The DC current flowing into the set is determined by the
exchange supply voltage V
exch
, the feeding bridge
resistance R
exch
and the DC resistance of the telephone
line R
line
. When the line current (I
line
) is more than 0.5 mA
greater than the sum of the IC supply current (I
CC
) and the
current drawn by the peripheral circuitry connected to V
CC
(I
p
), the excess current is shunted to SLPE via LN.
相關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 |
相關代理商/技術參數(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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