MODEM-MODULATOR Modems 13

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Part	Manufacturer	Telecom IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	No. of Functions	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	Minimum Operating Temperature	Terminal Finish	Terminal Position	Data Rate	JESD-30 Code	Moisture Sensitivity Level (MSL)	Maximum Seated Height	Width	Qualification	Additional Features	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length
CMX993WQ3	Cml Microcircuits	MODEM-MODULATOR												1.8/3.3,3.3			Other Telecom ICs											Not Qualified
CMX993Q3	Cml Microcircuits	MODEM-MODULATOR												1.8/3.3,3.3			Other Telecom ICs											Not Qualified
TRF3520	Texas Instruments	MODEM-MODULATOR		GULL WING	48		SQUARE	PLASTIC/EPOXY	YES						FLATPACK							QUAD		S-PQFP-G48				Not Qualified
TRF3520PT	Texas Instruments	MODEM-MODULATOR	INDUSTRIAL	GULL WING	48	LFQFP	SQUARE	PLASTIC/EPOXY	YES	1			3.75 V	3.75	FLATPACK, LOW PROFILE, FINE PITCH	QFP48,.35SQ,20	Other Telecom ICs	.5 mm	85 Cel	-40 Cel		QUAD		S-PQFP-G48		1.6 mm	7 mm	Not Qualified			NOT SPECIFIED	NOT SPECIFIED	7 mm
TRF3520PFB	Texas Instruments	MODEM-MODULATOR	INDUSTRIAL	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	1			3.75 V		FLATPACK, THIN PROFILE, FINE PITCH			.5 mm	85 Cel	-40 Cel		QUAD		S-PQFP-G48		1.2 mm	7 mm	Not Qualified					7 mm
TS75321CP	STMicroelectronics	MODEM-MODULATOR	COMMERCIAL	THROUGH-HOLE	48	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	-5 V	35 mA	5 V		IN-LINE			2.54 mm	70 Cel	0 Cel		DUAL	.0096 Mbps	R-PDIP-T48		5.08 mm	15.24 mm	Not Qualified	FULL DUPLEX
NE5080N	NXP Semiconductors	MODEM-MODULATOR	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		100 mA	5 V		IN-LINE			2.54 mm	70 Cel	0 Cel	TIN/NICKEL PALLADIUM GOLD	DUAL		R-PDIP-T16		4.2 mm	7.62 mm	Not Qualified	HALF DUPLEX; FULL DUPLEX	e3/e4			19.025 mm
MAX2395ETI	Maxim Integrated	MODEM-MODULATOR	INDUSTRIAL	NO LEAD	28	HVQCCN	SQUARE	UNSPECIFIED	YES	1			2.85 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	TIN LEAD	QUAD		S-XQCC-N28	1	.8 mm	5 mm	Not Qualified		e0			5 mm
MAX2395EGI	Maxim Integrated	MODEM-MODULATOR	INDUSTRIAL	NO LEAD	28	HVQCCN	SQUARE	UNSPECIFIED	YES	1			2.85 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	TIN LEAD	QUAD		S-XQCC-N28	1	.9 mm	5 mm	Not Qualified		e0			5 mm
MAX2395ETI+	Maxim Integrated	MODEM-MODULATOR	INDUSTRIAL	NO LEAD	28	HVQCCN	SQUARE	UNSPECIFIED	YES	1			2.85 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD		S-XQCC-N28	1	.8 mm	5 mm	Not Qualified		e3	30	260	5 mm
MAX2395ETI-T	Maxim Integrated	MODEM-MODULATOR																			TIN LEAD				1					e0
MAX2395ETI+T	Maxim Integrated	MODEM-MODULATOR																			MATTE TIN									e3
MAX2395EGI-T	Maxim Integrated	MODEM-MODULATOR																			TIN LEAD				1					e0

Modems

A modem, short for modulator-demodulator, is a device used to convert digital signals into analog signals for transmission over telephone lines or other analog communication channels. Modems can also receive and decode analog signals and convert them back into digital signals. They are used to provide internet connectivity, transmit data over long distances, and connect to remote devices.

Modems use a technique called modulation to convert digital signals into analog signals that can be transmitted over an analog communication channel. This involves changing the amplitude, frequency, or phase of the signal in response to the digital data being transmitted. At the receiving end, the modem uses a technique called demodulation to convert the analog signal back into a digital signal that can be processed by the receiving device.

Modems also use various modulation and demodulation techniques to ensure reliable and efficient transmission of data. These techniques include phase-shift keying (PSK), quadrature amplitude modulation (QAM), and frequency-shift keying (FSK), among others. The choice of modulation technique depends on the specific application and the characteristics of the communication channel being used.

There are several types of modems, including dial-up modems, cable modems, DSL modems, and wireless modems. Dial-up modems are the oldest type of modem and use the telephone network to transmit data at relatively slow speeds. Cable modems and DSL modems are used to provide high-speed internet connectivity over cable and phone lines, respectively. Wireless modems, also known as cellular modems, use wireless communication protocols to provide internet connectivity over cellular networks.

Modems are an essential technology for modern communication systems, enabling the transmission of data over a variety of communication channels and protocols. As the technology continues to evolve, we can expect to see even more advanced and innovative modems in the future.