Part | RoHS | Manufacturer | Telecom IC Type | Temperature Grade | Terminal Form | No. of Terminals | Package Code | Package Shape | Package Body Material | Surface Mount | No. of Functions | Technology | Nominal Negative Supply Voltage | Maximum Supply Current | Nominal Supply Voltage | Power Supplies (V) | Package Style (Meter) | Package Equivalence Code | Sub-Category | Terminal Pitch | Maximum Operating Temperature | Repertory | Minimum Operating Temperature | Terminal Finish | Terminal Position | JESD-30 Code | Moisture Sensitivity Level (MSL) | Maximum Seated Height | Width | Qualification | Additional Features | Crystal Frequency (MHz) | JESD-609 Code | Maximum Time At Peak Reflow Temperature (s) | Peak Reflow Temperature (C) | Make-break Ratio | Length |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments |
TELEPHONE DIALER CIRCUIT |
OTHER |
THROUGH-HOLE |
14 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
CMOS |
2.5 mA |
5 V |
3/8 |
IN-LINE |
DIP14,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-30 Cel |
TIN LEAD |
DUAL |
R-PDIP-T14 |
5.08 mm |
7.62 mm |
Not Qualified |
e0 |
19.18 mm |
||||||||||
Texas Instruments |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BICMOS |
1.3 mA |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-PDIP-T8 |
Not Qualified |
|||||||||||||||||||
Texas Instruments |
TELEPHONE RINGER CIRCUIT |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
IN-LINE |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-PDIP-T8 |
5.08 mm |
7.62 mm |
Not Qualified |
|||||||||||||||||||
Texas Instruments |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
CERAMIC |
NO |
BICMOS |
.0013 mA |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-XDIP-T8 |
Not Qualified |
|||||||||||||||||||
Texas Instruments |
INDUSTRIAL |
THROUGH-HOLE |
16 |
DIP |
RECTANGULAR |
CERAMIC |
NO |
CMOS |
.002 mA |
3/10 |
IN-LINE |
DIP16,.3 |
Telephone Circuits |
2.54 mm |
85 Cel |
-40 Cel |
DUAL |
R-XDIP-T16 |
Not Qualified |
3.58 |
NOT SPECIFIED |
NOT SPECIFIED |
|||||||||||||||
Texas Instruments |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BICMOS |
1.3 mA |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-PDIP-T8 |
Not Qualified |
|||||||||||||||||||
Texas Instruments |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BICMOS |
1.3 mA |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-PDIP-T8 |
Not Qualified |
|||||||||||||||||||
Texas Instruments |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
CERAMIC |
NO |
BICMOS |
1.3 mA |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-XDIP-T8 |
Not Qualified |
|||||||||||||||||||
Texas Instruments |
TELEPHONE RINGER CIRCUIT |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
BICMOS |
.0013 mA |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-PDIP-T8 |
5.08 mm |
7.62 mm |
Not Qualified |
NOT SPECIFIED |
NOT SPECIFIED |
9.81 mm |
||||||||||||
Texas Instruments |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
CERAMIC |
NO |
BICMOS |
1.3 mA |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-XDIP-T8 |
Not Qualified |
|||||||||||||||||||
Texas Instruments |
TELEPHONE DIALER CIRCUIT |
OTHER |
THROUGH-HOLE |
16 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
CMOS |
3.8 V |
IN-LINE |
2.54 mm |
70 Cel |
-30 Cel |
DUAL |
R-PDIP-T16 |
5.08 mm |
7.62 mm |
Not Qualified |
19.304 mm |
||||||||||||||||
Texas Instruments |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BICMOS |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-PDIP-T8 |
Not Qualified |
||||||||||||||||||||
Analog Devices |
TELEPHONE RINGER CIRCUIT |
AUTOMOTIVE |
THROUGH-HOLE |
14 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
10 V |
IN-LINE |
2.54 mm |
125 Cel |
-40 Cel |
TIN LEAD |
DUAL |
R-PDIP-T14 |
1 |
3.937 mm |
7.62 mm |
Not Qualified |
e0 |
|||||||||||||||
Analog Devices |
TELEPHONE RINGER CIRCUIT |
OTHER |
THROUGH-HOLE |
14 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
10 V |
IN-LINE |
2.54 mm |
125 Cel |
0 Cel |
TIN LEAD |
DUAL |
R-PDIP-T14 |
1 |
3.937 mm |
7.62 mm |
Not Qualified |
e0 |
|||||||||||||||
STMicroelectronics |
TELEPHONE SPEECH CIRCUIT |
OTHER |
THROUGH-HOLE |
16 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
BIPOLAR |
.08 mA |
2.5 V |
3.9/12.2,2.5 |
IN-LINE |
DIP16,.3 |
Other Telecom ICs |
2.54 mm |
70 Cel |
-45 Cel |
TIN LEAD |
DUAL |
R-PDIP-T16 |
5.1 mm |
7.62 mm |
Not Qualified |
e0 |
|||||||||||
STMicroelectronics |
TELEPHONE MULTIFUNCTION CIRCUIT |
COMMERCIAL EXTENDED |
THROUGH-HOLE |
28 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
BIPOLAR |
3 V |
3 |
IN-LINE |
DIP28,.6 |
Other Telecom ICs |
2.54 mm |
75 Cel |
-25 Cel |
TIN LEAD |
DUAL |
R-PDIP-T28 |
15.24 mm |
Not Qualified |
e0 |
1:1.5 |
36.83 mm |
|||||||||||
STMicroelectronics |
OTHER |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BIPOLAR |
4.2 mA |
29 V |
29 |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
65 Cel |
-45 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T8 |
Not Qualified |
e0 |
|||||||||||||||
STMicroelectronics |
TELEPHONE DIALER CIRCUIT |
OTHER |
THROUGH-HOLE |
14 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
CMOS |
1 mA |
5 V |
4 |
IN-LINE |
DIP14,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-25 Cel |
TIN LEAD |
DUAL |
R-PDIP-T14 |
5.1 mm |
7.62 mm |
Not Qualified |
3.58 |
e0 |
||||||||||
STMicroelectronics |
TELEPHONE SPEECH CIRCUIT |
COMMERCIAL |
THROUGH-HOLE |
20 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
BIPOLAR |
-48 V |
3.3 V |
-48 |
IN-LINE |
DIP20,.3 |
Other Telecom ICs |
2.54 mm |
70 Cel |
-20 Cel |
TIN LEAD |
DUAL |
R-PDIP-T20 |
3.93 mm |
7.62 mm |
Not Qualified |
e0 |
|||||||||||
STMicroelectronics |
OTHER |
THROUGH-HOLE |
16 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
CMOS |
.75 mA |
6/17 |
IN-LINE |
DIP16,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-25 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T16 |
Not Qualified |
e0 |
||||||||||||||||
STMicroelectronics |
TELEPHONE DIALER CIRCUIT |
COMMERCIAL |
THROUGH-HOLE |
20 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
CMOS |
1 mA |
2.5 V |
2.5 |
IN-LINE |
DIP20,.3 |
Telephone Circuits |
2.54 mm |
55 Cel |
-10 Cel |
TIN LEAD |
DUAL |
R-PDIP-T20 |
3.93 mm |
7.62 mm |
Not Qualified |
SELECTABLE MAKE BREAK RATIO 1:2 |
e0 |
1:1.5 |
|||||||||
STMicroelectronics |
SPEAKER PHONE CIRCUIT |
COMMERCIAL |
THROUGH-HOLE |
16 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BIPOLAR |
30 mA |
3.15 V |
3.15 |
IN-LINE |
DIP16,.3 |
Telephone Circuits |
2.54 mm |
45 Cel |
-5 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T16 |
Not Qualified |
e0 |
||||||||||||||
STMicroelectronics |
TELEPHONE DIALER CIRCUIT |
COMMERCIAL |
THROUGH-HOLE |
20 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
CMOS |
.6 mA |
5 V |
3/5 |
IN-LINE |
DIP20,.3 |
Telephone Circuits |
2.54 mm |
60 Cel |
REPERTORY |
-20 Cel |
TIN LEAD |
DUAL |
R-PDIP-T20 |
3.93 mm |
7.62 mm |
Not Qualified |
3.58 |
e0 |
1:1.5 |
||||||||
STMicroelectronics |
TELEPHONE MULTIFUNCTION CIRCUIT |
COMMERCIAL EXTENDED |
THROUGH-HOLE |
28 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
BIPOLAR |
3 V |
3 |
IN-LINE |
DIP28,.6 |
Other Telecom ICs |
2.54 mm |
75 Cel |
-25 Cel |
TIN LEAD |
DUAL |
R-PDIP-T28 |
15.24 mm |
Not Qualified |
e0 |
1:1.5 |
36.83 mm |
|||||||||||
STMicroelectronics |
OTHER |
THROUGH-HOLE |
16 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
CMOS |
IN-LINE |
DIP16,.3 |
Telephone Circuits |
2.54 mm |
60 Cel |
-30 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T16 |
Not Qualified |
e0 |
||||||||||||||||||
STMicroelectronics |
OTHER |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BIPOLAR |
29 V |
29 |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
65 Cel |
-45 Cel |
DUAL |
R-PDIP-T8 |
Not Qualified |
||||||||||||||||||
STMicroelectronics |
TELEPHONE MULTIFUNCTION CIRCUIT |
COMMERCIAL EXTENDED |
THROUGH-HOLE |
28 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
BIPOLAR |
3 V |
3 |
IN-LINE |
DIP28,.6 |
Other Telecom ICs |
2.54 mm |
75 Cel |
-25 Cel |
TIN LEAD |
DUAL |
R-PDIP-T28 |
15.24 mm |
Not Qualified |
e0 |
1:1.5 |
36.83 mm |
|||||||||||
STMicroelectronics |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BIPOLAR |
26 V |
26 |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T8 |
Not Qualified |
e0 |
||||||||||||||||
STMicroelectronics |
OTHER |
THROUGH-HOLE |
18 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
CMOS |
.5 mA |
1.5/5.5 |
IN-LINE |
DIP18,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-25 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T18 |
Not Qualified |
e0 |
||||||||||||||||
STMicroelectronics |
TELEPHONE MULTIFUNCTION CIRCUIT |
OTHER |
THROUGH-HOLE |
28 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
CMOS |
.0009 mA |
3 V |
3 |
IN-LINE |
DIP28,.6 |
Telephone Circuits |
2.54 mm |
70 Cel |
-25 Cel |
TIN LEAD |
DUAL |
R-PDIP-T28 |
15.24 mm |
Not Qualified |
e0 |
1:2 |
36.83 mm |
||||||||||
STMicroelectronics |
OTHER |
THROUGH-HOLE |
18 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
CMOS |
.0006 mA |
3/5 |
IN-LINE |
DIP18,.3 |
Telephone Circuits |
2.54 mm |
60 Cel |
-30 Cel |
TIN LEAD |
DUAL |
R-PDIP-T18 |
Not Qualified |
3.58 |
e0 |
|||||||||||||||
STMicroelectronics |
COMMERCIAL |
THROUGH-HOLE |
20 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BIPOLAR |
TIP-RING VOLTAGE |
IN-LINE |
DIP20,.3 |
Telephone Circuits |
2.54 mm |
60 Cel |
0 Cel |
DUAL |
R-PDIP-T20 |
Not Qualified |
|||||||||||||||||||
STMicroelectronics |
TELEPHONE SPEECH CIRCUIT |
COMMERCIAL |
THROUGH-HOLE |
14 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
IN-LINE |
2.54 mm |
55 Cel |
-20 Cel |
DUAL |
R-PDIP-T14 |
5.1 mm |
7.62 mm |
Not Qualified |
|||||||||||||||||||
STMicroelectronics |
COMMERCIAL |
THROUGH-HOLE |
16 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BIPOLAR |
10 mA |
4.3/9 |
IN-LINE |
DIP16,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-PDIP-T16 |
Not Qualified |
3.58 |
|||||||||||||||||
STMicroelectronics |
COMMERCIAL |
THROUGH-HOLE |
14 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
.75 mA |
15 V |
15 |
IN-LINE |
DIP14,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
0 Cel |
DUAL |
R-PDIP-T14 |
Not Qualified |
||||||||||||||||||
STMicroelectronics |
TELEPHONE DIALER CIRCUIT |
OTHER |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
CMOS |
1 mA |
5 V |
4 |
IN-LINE |
DIP4,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-25 Cel |
TIN LEAD |
DUAL |
R-PDIP-T8 |
5.08 mm |
7.62 mm |
Not Qualified |
3.58 |
e0 |
||||||||||
STMicroelectronics |
OTHER |
THROUGH-HOLE |
18 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
CMOS |
1.8 mA |
3 V |
3 |
IN-LINE |
DIP18,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-25 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T18 |
Not Qualified |
4.43 |
e0 |
||||||||||||||
STMicroelectronics |
COMMERCIAL |
THROUGH-HOLE |
20 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
CMOS |
1 mA |
2.5 V |
2.5 |
IN-LINE |
DIP20,.3 |
Telephone Circuits |
2.54 mm |
55 Cel |
-10 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T20 |
Not Qualified |
e0 |
|||||||||||||||
STMicroelectronics |
COMMERCIAL |
THROUGH-HOLE |
20 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
CMOS |
.6 mA |
3/5 |
IN-LINE |
DIP20,.3 |
Telephone Circuits |
2.54 mm |
60 Cel |
REPERTORY |
0 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T20 |
Not Qualified |
3.58 |
e0 |
||||||||||||||
STMicroelectronics |
OTHER |
THROUGH-HOLE |
28 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BIPOLAR |
150 mA |
IN-LINE |
DIP28,.6 |
Telephone Circuits |
2.54 mm |
65 Cel |
-25 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T28 |
Not Qualified |
e0 |
|||||||||||||||||
STMicroelectronics |
SPEAKER PHONE CIRCUIT |
COMMERCIAL |
THROUGH-HOLE |
28 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BIPOLAR |
30 mA |
2.9 V |
2.9 |
IN-LINE |
DIP28,.6 |
Telephone Circuits |
2.54 mm |
45 Cel |
-5 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T28 |
Not Qualified |
e0 |
||||||||||||||
STMicroelectronics |
TELEPHONE MULTIFUNCTION CIRCUIT |
COMMERCIAL EXTENDED |
THROUGH-HOLE |
28 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
BIPOLAR |
3 V |
3 |
IN-LINE |
DIP28,.6 |
Other Telecom ICs |
2.54 mm |
75 Cel |
-25 Cel |
TIN LEAD |
DUAL |
R-PDIP-T28 |
15.24 mm |
Not Qualified |
e0 |
1:1.5 |
36.83 mm |
|||||||||||
STMicroelectronics |
SPEAKER PHONE CIRCUIT |
THROUGH-HOLE |
18 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
-6 V |
34 mA |
6 V |
+-6 |
IN-LINE |
DIP18,.3 |
Telephone Circuits |
2.54 mm |
DUAL |
R-PDIP-T18 |
Not Qualified |
|||||||||||||||||||
STMicroelectronics |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BIPOLAR |
.9 mA |
TIP-RING VOLTAGE |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
DUAL |
R-PDIP-T8 |
Not Qualified |
||||||||||||||||||
STMicroelectronics |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
BCDMOS |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
50 Cel |
0 Cel |
Tin/Lead (Sn/Pb) |
DUAL |
R-PDIP-T8 |
Not Qualified |
e0 |
||||||||||||||||||
STMicroelectronics |
OTHER |
THROUGH-HOLE |
18 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
CMOS |
.0006 mA |
3/5 |
IN-LINE |
DIP18,.3 |
Telephone Circuits |
2.54 mm |
60 Cel |
-30 Cel |
TIN LEAD |
DUAL |
R-PDIP-T18 |
Not Qualified |
3.58 |
e0 |
|||||||||||||||
STMicroelectronics |
COMMERCIAL |
THROUGH-HOLE |
14 |
DIP |
RECTANGULAR |
CERAMIC |
NO |
.75 mA |
15 V |
15 |
IN-LINE |
DIP14,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
0 Cel |
DUAL |
R-XDIP-T14 |
Not Qualified |
||||||||||||||||||
STMicroelectronics |
TELEPHONE RINGER CIRCUIT |
COMMERCIAL |
THROUGH-HOLE |
8 |
DIP |
RECTANGULAR |
PLASTIC/EPOXY |
NO |
1 |
26 V |
26 |
IN-LINE |
DIP8,.3 |
Telephone Circuits |
2.54 mm |
70 Cel |
-20 Cel |
TIN LEAD |
DUAL |
R-PDIP-T8 |
5.08 mm |
7.62 mm |
Not Qualified |
e0 |
Telephone Line ICs are electronic components used in telephone systems to interface with the telephone line and provide necessary functionality for telephone communication. These ICs are designed to provide reliable and efficient operation of the telephone line, allowing for clear and uninterrupted communication between two devices.
Telephone Line ICs use various techniques to interface with the telephone line, including pulse dialing, dual-tone multi-frequency (DTMF) signaling, and loop current sensing. Pulse dialing is used to send a series of electrical pulses over the telephone line to dial a phone number. DTMF signaling is used to send a sequence of tones to control various telephone functions, such as call forwarding and call waiting. Loop current sensing is used to detect the presence of a telephone off-hook condition, allowing the telephone system to provide appropriate signaling and call management.
Some common features of Telephone Line ICs include:
1. Telephone line interface: Telephone Line ICs provide the necessary interface with the telephone line to enable telephone communication.
2. Signal processing: Telephone Line ICs are designed to process signals quickly and efficiently, ensuring clear and uninterrupted communication.
3. Tone generation and detection: Telephone Line ICs can generate and detect various tones used for telephone communication, such as dial tones and busy signals.
4. Call management: Telephone Line ICs can provide call management functions, such as call waiting and call forwarding.
Telephone Line ICs are used in a variety of telephone systems, including traditional landline phones, cordless phones, and PBX (Private Branch Exchange) systems. They are also used in other communication systems that require telephone line interface, such as alarm systems and security systems.