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L6726L-S18-R Fiches technique(PDF) 2 Page - Unisonic Technologies

No de pièce L6726L-S18-R
Description  UNIVERSAL SPEECH CIRCUIT
Download  13 Pages
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Fabricant  UTC [Unisonic Technologies]
Site Internet  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

L6726L-S18-R Fiches technique(HTML) 2 Page - Unisonic Technologies

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L6726
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
2 of 13
www.unisonic.com.tw
QW-R108-015,B
PIN CONFIGURATION
1
16
15
14
12
13
11
2
3
4
5
6
7
8
10
9
17
18
DI
MO
MI 1
MI 2
-L
RI
DR
RE 1
RE 2
+L
TO
TI
+C
Mute
GR
DCS
DCO
DCC
PIN DESCRIPTIONS
Pin
No.
Pin
Name
Description
1
+L
Output of the DC-regulator and transmit amplifier. This pin is connected to the line through a polarity
guard and diode bridge.
2
TO
Output of the transmit amplifier. This pin is connected through a resistor of 47 to 100Ω to -L, which
sets the DC-resistance of the circuit. The output has a low AC output impedance and the signal is
used to drive a side tone balancing network.
3
TI
Input of transmit amplifier. Input impedance 17kΩ±20%
4
+C
The positive power supply terminal for most of the circuitry inside the UTC L6726 (about 1mA current
consumption).The +C-PIN shall be connected to a decoupling capacitor of 47µF to 150µF
5
Mute
When low, speech circuit is muted and the DTMF input is enabled. Maximum voltage (at mute) is
0.3V,current sink requirement of external driver is 50µA
6
GR
Control input for the gain regulation circuitry.
7
DCS
The sense input to the DC-supply.
8
DCO The output from the DC-supply.
9
DCC The control output from the DC-supply
10
DI
The input for the DTMF-signal. Input impedance is 25kΩ±20%
11
MO
Output of the microphone amplifier or DTMF-amplifier
12
MI 1
13
MI 2
Input to the microphone amplifier. Input impedance 1.7kΩ±20%
14
-L
The negative power terminal, connected to the line though a polarity guard diode bridge
15
RI
Input of receiver amplifier. Input impedance is approximately 38kΩ±20%
16
DR
The control input for the receiver amplifier driving capability.
17
RE 1
18
RE 2
Receiver amplifier outputs. Output impedance is approximately 3Ω.


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