參數(shù)資料
型號(hào)： TEA7092
廠(chǎng)商： 意法半導(dǎo)體
英文描述： TELEPHONE ANALOG FRONT END
中文描述： 電話(huà)模擬前端
文件頁(yè)數(shù)： 42/57頁(yè)
文件大?。?/td> 574K
代理商： TEA7092
IV - MICROCONTROLLER INTERFACE
(continued)
IV.3.1 - DifferentCodes
(continued)
- The
FLIP-FLOP
codes,each time they are sent,
TEA7092 returns to the previous configura-
tion.
Each Flip-Flop code is an independent one, its
configuration is not modified by any other code,
exceptedthe ”Initialization”code andthe ”Reset”
code.
These codes are accessible through the tele-
phoneset user,for example : The +6dB mode on
the earphonewhich increasesthe earphonelevel
is accessible through a dedicated key of the
telephoneset keyboard.
Codes
Remarks
a6 a5 a4 a3 a2 a1 a0
0
0
1
0
1
0
1
V
L
(3) DC Speech
/
V
L
(3) DC Pulse Dialing
0
0
1
0
1
1
0
Normal Receive Gain
/
+6dB Receive Gain
0
0
1
1
0
1
0
No Transfer
/
Transfer Request
0
1
1
0
1
1
0
Normal TransmitGain
/
-6dB Transmit Gain
0
1
1
1
0
1
0
Oscillator ON
/
Oscillator in Stand by
Mode
- The
CONFIGURATION
codes,which are gener-
allysent onceto programatelephonesetat each
OFF-HOOK action, such as PABXconnection or
PON thresholdlevel for example.are notacces-
sible through the telephone set user. Excepted
the Antiacousticfeedbackstage attenuatorvalue
andtheDecayPON currentthreshold,eachcode
is an independant one, its configuration is not
modifiedbyanyothercode,exceptforthe”Initiali-
zation” code and the ”Reset” code.
Except for the Antiacoustic feedback stage at-
tenuator programmation codes and the Decay
PONcurrentthreshold,alltheotherConfiguration
codesare Flip-Flopcodes.
Codes
Remarks
a6 a5 a4 a3 a2 a1 a0
0
0
1
0
1
0
0
AGC on Tx & Rx Paths
/
No AGCon Tx&Rx Paths
Line Tracking Sidetone
Network
/
Single Sidetone Network
= 3/4 xZALL + 1/4 xZASL
Line Tracking Sidetone
Network
/SingleSidetone
Network = ZASL
Squelch Feature ON
/
Squelch Feature Inhibited
Decay PON Current
Threshold = 12mA
Decay PON Current
Threshold = 4mA
Antiacoustic Feedback
Stage Attenuator = 10dB
Antiacoustic Feedback
Stage Attenuator = 15dB
Antiacoustic Feedback
Stage Attenuator = 20dB
Antiacoustic Feedback
Stage Attenuator = 25dB
0
0
1
1
0
0
0
0
0
1
1
0
1
1
0
0
1
1
0
0
1
0
0
1
1
1
1
1
1
0
0
0
0
0
1
0
1
1
1
1
0
0
0
1
1
1
1
0
1
0
1
1
1
1
1
0
0
1
1
1
1
1
1
- TheLOUDSPEAKERVOLUMECONTROLcodes.
These codes are memorized, independtly from
the mode or operatingcode. For exampleone of
these codes can be sent in Handset mode and
when the Grouplistening mode codeis sent, the
loudspeaker output volume will be the one pro-
grammedin the Handsetmode.
Codes
Remarks
a6 a5 a4 a3 a2 a1 a0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Gmax
Gmax - 4dB
Gmax - 8dB
Gmax - 12dB
Gmax - 16dB
Gmax - 20dB
Gmax - 24dB
Gmax - 28dB
-21dB Attenuation
Adder In Ring Mode*
* Flip-Flopcode.
TEA7092 - TELEPHONE SET INTEGRATED CIRCUIT
42/57
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