SPEAKER PHONE CIRCUIT Telephone Line ICs 52

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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

TA31053F-TP2

Toshiba

SPEAKER PHONE CIRCUIT

COMMERCIAL

GULL WING

44

QFP

SQUARE

PLASTIC/EPOXY

YES

1

15 mA

5 V

FLATPACK

.8 mm

60 Cel

-20 Cel

QUAD

S-PQFP-G44

2.7 mm

10 mm

Not Qualified

NOT SPECIFIED

240

10 mm

TA31050N

Toshiba

SPEAKER PHONE CIRCUIT

COMMERCIAL EXTENDED

THROUGH-HOLE

42

SDIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

25 mA

5 V

IN-LINE, SHRINK PITCH

1.778 mm

75 Cel

-30 Cel

TIN LEAD

DUAL

R-PDIP-T42

4.5 mm

15.24 mm

Not Qualified

e0

38 mm

KA2420N

Samsung

SPEAKER PHONE CIRCUIT

COMMERCIAL

THROUGH-HOLE

28

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

9 mA

6/11

IN-LINE

DIP28,.6

Telephone Circuits

2.54 mm

60 Cel

-20 Cel

DUAL

R-PDIP-T28

Not Qualified

KA2420D

Samsung

SPEAKER PHONE CIRCUIT

COMMERCIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

9 mA

6/11

SMALL OUTLINE

SOP28,.4

Telephone Circuits

1.27 mm

60 Cel

-20 Cel

DUAL

R-PDSO-G28

Not Qualified

Telephone Line ICs

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.