J BEND Telephone Line ICs 3

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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

L3913

STMicroelectronics

TELEPHONE MULTIFUNCTION CIRCUIT

J BEND

44

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

3.4 V

CHIP CARRIER

1.27 mm

QUAD

S-PQCC-J44

4.57 mm

16.5862 mm

Not Qualified

SELECTABLE MAKE/BREAK RATIO 1:2

1:1.5

16.5862 mm

TEA7091QN

STMicroelectronics

TELEPHONE MULTIFUNCTION CIRCUIT

OTHER

J BEND

44

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CHIP CARRIER

1.27 mm

70 Cel

-25 Cel

QUAD

S-PQCC-J44

4.57 mm

16.5862 mm

Not Qualified

16.5862 mm

PSB85200-N

Infineon Technologies

J BEND

68

QCCJ

SQUARE

PLASTIC/EPOXY

YES

CMOS

CHIP CARRIER

LDCC68,1.0SQ

Telephone Circuits

1.27 mm

Tin/Lead (Sn/Pb)

QUAD

S-PQCC-J68

Not Qualified

e0

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.