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PDF TEA1069A Data sheet ( Hoja de datos )
| Número de pieza | TEA1069A | |
| Descripción | Versatile speech/dialler/ringer with music-on-hold | |
| Fabricantes | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
TEA1069; TEA1069A
Versatile speech/dialler/ringer with
music-on-hold
Product specification
Supersedes data of 1996 Dec 10
File under Integrated Circuits, IC03
1998 Jan 08
1 page  
Philips Semiconductors
Versatile speech/dialler/ringer with
music-on-hold
Product specification
TEA1069; TEA1069A
PINNING
SYMBOL
QR
GAR
MIC−
MIC+
STAB
IR
DTMF
KT/EARTH
CSI
XTAL1
XTAL2
RESET
CE/FDI
COL6
COL5
COL4
COL3
COL2
COL1
DP/FL
HOLD
VOL2
VEE
TONE
VDD
VOL1
MOH/DMO
HF
ROW1
ROW2
ROW3
ROW4
ROW5
DIODE
MUTE
VCC
REG
AGC
PIN
SOT270-1 SOT307-2
1 39
2 40
3 41
4 42
5 43
6 44
71
82
93
10 4
11 5
12 6
13 7
14 8
15 9
16 10
17 12
18 13
19 14
20 15
21 16
22 17
23 11, 18, 23
24 19
25 20
26 21
27 22
28 24
29 25
30 26
31 27
32 28
33 29
34 30
35 31
36 32
37 33
38 34
DESCRIPTION
receiving amplifier output
gain adjustment; receiving amplifier
inverting microphone input
non-inverting microphone input
current stabilizer
receiving amplifier input
dual-tone multi-frequency input
keytone/earth recall output
cradle switch input
oscillator input
oscillator output
reset input
chip enable/frequency discrimination input
keyboard column input 6
keyboard column input 5
keyboard column input 4
keyboard column input 3
keyboard column input 2
keyboard column input 1
dial pulse/flash output
hold control input
volume 2 output
negative line terminal
tone generator output
dialler/ringer part supply voltage
volume 1 output
music on hold/dial mode output
hands-free control output
keyboard row input/output 1
keyboard row input/output 2
keyboard row input/output 3
keyboard row input/output 4
keyboard row input/output 5
diode option output
mute output, active LOW
speech part supply voltage
(DC) line voltage regulator decoupling
automatic gain control input
1998 Jan 08
5
5 Page 
Philips Semiconductors
Versatile speech/dialler/ringer with
music-on-hold
Product specification
TEA1069; TEA1069A
k, full pagewidth
1 (39)
QR
VEE 23 (18)
a. Dynamic earpiece.
1 (39) (1)
QR
VEE 23 (18)
b. Magnetic earpiece.
1 (39) (2)
QR
VEE 23 (18)
MBH199
c. Piezoelectric earpiece.
Pin numbers in parenthesis refer to the TEA1069H and TEA1069AH.
(1) Resistor may be connected to prevent distortion (inductive load).
(2) Resistor is required to increase the phase margin (capacitive load).
Fig.8 Alternative receiver arrangements.
DUAL TONE MULTI-FREQUENCY INPUT DTMF
When the DTMF input is enabled (MUTE is LOW) dialling
tones may be sent on to the line. The voltage gain from
DTMF to LN is typically 25.5 dB (when R7 = 68 kΩ) and
varies with R7 in the same way as the microphone gain.
The tones can be heard in the earpiece at a low level
(confidence tone).
AUTOMATIC GAIN CONTROL INPUT AGC
Automatic line loss compensation is achieved by
connecting a resistor (R6) between AGC and VEE.
The automatic gain control varies the gain of the
microphone amplifier and the receiving amplifier in
accordance with the DC line current.
The control range is 5.8 dB which corresponds to a line
length of 5 km for a 0.5 mm diameter twisted-pair copper
cable with a DC resistance of 176 Ω/km and average
attenuation of 1.2 dB/km. Resistor R6 should be chosen in
accordance with the exchange supply voltage and its
feeding bridge resistance (see Fig.9 and Table 1).
The ratio of start and stop currents of the AGC curve is
independent of the value of R6. If no automatic line-loss
compensation is required the AGC pin may be left
open-circuit. The amplifiers, in this condition, will give their
maximum specified gain.
1998 Jan 08
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TEA1069A.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TEA1069 | Versatile speech/dialler/ringer with music-on-hold | NXP Semiconductors |
| TEA1069A | Versatile speech/dialler/ringer with music-on-hold | NXP Semiconductors |
| TEA1069AH | Versatile speech/dialler/ringer with music-on-hold | NXP Semiconductors |
| TEA1069H | Versatile speech/dialler/ringer with music-on-hold | NXP Semiconductors |
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