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TEA7092 Fiches technique(PDF) 1 Page - STMicroelectronics

No de pièce TEA7092
Description  TELEPHONE SET INTEGRATED CIRCUIT
Download  57 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TEA7092 Fiches technique(HTML) 1 Page - STMicroelectronics

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APPLICATION NOTE
TEA7092 - TELEPHONE SET INTEGRATED CIRCUIT
AN848/1096
CONTENTS
Pages
I.
TEA7092 GENERAL INFORMATION . . . .... . . . . . . . . . . . .... .. . . . . . . . ... . . . .
3
I.1.
SETTING THE TEA7092 APPLICATION . . . . . . . . . . . . . . . . . .... .. .. .. . . . . . . ...
3
I.2.
PINOUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... ... .. . . .. ... ... ... .... ...
4
I.3.
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . .... ... .. . . .. ... ... ... .... ...
5
I.4.
INPUT/OUPUT CONFIGURATIONS . . . . . . . . . . . . . .... ... ... . ... . . . . . . . . ....
6
II.
SPEECH FEATURE . . . . .... ... .. . . . . . . . . . . . ... .. . . . . . . . ... ... ... .... .. .
14
II.1.
DC CHARACTERISTICS . . . . . . . . . . ... ... ... .... ... ... ... ... ... ... .... ...
14
II.1.1.
TEA7092 DC Voltage . . . . . . . . . . . . . ... ... ... .... ... ... ... ... ... ... .... ...
14
II.1.2.
Telephone Set DC Voltage . . .... .. . . . . . . . . . . . ... ... .. . . . . ... ... ... .... ...
14
II.1.3.
Start Up Characteristics . . . . . . . . . . . ... ... ... .... ... ... ... ... ... ... .... ...
15
II.1.4.
Further Information (VCC/VREF/IREF/VMC/VRMC/VLS/VREFL) .... ... . ... . . . . . . . . ....
17
II.2.
IMPEDANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... ... ... .... .. .
18
II.3.
TRANSMIT CHANNEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... .. .. .. . . . . . . ...
19
II.3.1.
General Information - Maximum Gain Adjustment . . . . . . . . . . . . . . . . . . . . . . .... ...
19
II.3.2.
Softclipping Threshold (Maximum Line Level). . . . . . . . . . . . . . . . . ... ... ... .... ...
20
II.3.3.
Line Loss Compensation A.G.C. Adjustment . . . . .... ... ... ... ... ... ... .... ...
21
II.3.4.
A.G.C. Inhibition . . . . . . . . . . . . . . . . . ... ... ... .... ... ... ... ... ... ... .... ...
21
II.3.5.
Transmit Squelch / Antiacoustic Feedback Stage . . . . .... ... ... . ... . . . . . . . . ....
22
II.4.
SIDETONE . . . . . . . . . . . . . . . . . . . . . ... ... ... .... ... ... ... ... ... .... . . . ...
23
II.4.1.
General Information . .... ... ... .. . ... ... ... .... ... ... ... ... ... .... . . . ...
23
II.4.2.
One Sidetone Network Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . ... ... ... .... .. .
24
II.4.3.
Line Tracking Sidetone Network Principle. . . . . . . . . . . . . . . . . . . . ... ... ... ... . . . .
24
II.4.4.
Sidetone Programming for PABX Application .... . . . . . . . ... ... .. . . . . . . . . . . . . . .
25
II.5.
RECEIVE CHANNEL . . . . . . . . . . . . . ... ... ... .... ... ... ... ... ... ... .... ...
26
II.5.1.
General Information - Maximum Gain Adjustment . . . . . . . . . . . . . . . . . . . . . . .... ...
26
II.5.2.
Maximum Output Level . . . . . .... .. . . . . . . . . . . . ... .. . . . . . . . ... ... ... .... .. .
27
II.5.3.
Line Loss Compensation / A.G.C. Adjustment . . . . . . . . . . . . . . . . ... ... ... ... . . . .
30
II.5.4.
A.G.C. Inhibition . . . . . . . . . . . . . . . . . ... ... ... .... ... ... ... ... ... ... .... ...
30
II.5.5.
+6dB Mode . .... .... ... .. . . . . . . . ... ... ... .... ... ... ... ... ... ... .... ...
30
II.6.
HANDSFREE INTERFACE. . . . . . . . . . . . . . . . . . .... ... ... ... ... ... ... .... ...
30
III.
CALL PROGRESS MONITOR AND GROUP LISTENING MODES . .... ... .... ...
31
III.1.
GENERAL INFORMATION. . . . . . . . .... ... ... .... ... ... ... ... ... . . . . . . . ...
31
III.2.
LOUDSPEAKING PART SUPPLY . . .... ... ... .... ... ... ... ... .... . . . . . . ...
32
III.3.
SOFTCLIPPING STAGE. . . . . . . . . . . ... ... ... .... ... ... ... ... ... ... .... ...
33
III.4.
ANTIACOUSTIC FEEDBACK FEATURES . . . . . . .... ... ... ... ... ... ... .... ...
33
III.5.
MAXIMUM OUTPUT POWER. . . . . . . . . . . . . . . . . . . . . . .... ... ... ... . . . ... ... .
35
III.6.
EXTERNAL POWER SUPPLY FACILITY. . . . . . . .... ... ... ... ... ... ... .... ...
36
III.7.
RING MELODY CONTROL MODE. . . . . . . . . . . . .... ... ... ... ... ... ... .... ...
37
III.8.
BEEP ERROR GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... ... ... .... .. .
38
1/57


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