SQUARE Modems 21

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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	Technology	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
A5191HRTNG-XTD	Onsemi	MODEM	INDUSTRIAL	NO LEAD	32	HVQCCN	SQUARE	UNSPECIFIED	YES	1	CMOS		3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		QUAD	.0012 Mbps	S-XQCC-N32		1 mm	5 mm				NOT SPECIFIED	NOT SPECIFIED	5 mm
NCN5192MNG	Onsemi	MODEM	INDUSTRIAL	NO LEAD	32	HVQCCN	SQUARE	UNSPECIFIED	YES	1	CMOS		3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		QUAD		S-XQCC-N32		1 mm	5 mm						5 mm
NCN5192MNRG	Onsemi	MODEM	INDUSTRIAL	NO LEAD	32	HVQCCN	SQUARE	UNSPECIFIED	YES	1	CMOS	.0006 mA	3.3 V	3.3/5	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC32,.2SQ,20	Modems	.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD		S-XQCC-N32	3	1 mm	5 mm	Not Qualified		e3	30	260	5 mm
NCN49599MNG	Onsemi	PROGRAMMABLE MODEM	INDUSTRIAL	NO LEAD	56	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	1		60 mA	3.3 V	3.3	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC56,.31SQ,20	Modems	.5 mm	85 Cel	-40 Cel		QUAD		S-PQCC-N56		1 mm	8 mm	Not Qualified					8 mm
NCN49599MNTWG	Onsemi	PROGRAMMABLE MODEM	INDUSTRIAL	NO LEAD	56	QCCN	SQUARE	PLASTIC/EPOXY	YES			.06 mA	3.3 V	3.3	CHIP CARRIER	LCC56,.31SQ,20	Modems	.5 mm	85 Cel	-40 Cel		QUAD		S-PQCC-N56				Not Qualified
STLC7550TQF7	STMicroelectronics	MODEM-SUPPORT CIRCUIT	COMMERCIAL	GULL WING	48	LFQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		3 V	3	FLATPACK, LOW PROFILE, FINE PITCH	QFP48,.35SQ,20	Modems	.5 mm	70 Cel	0 Cel	TIN LEAD	QUAD	.056 Mbps	S-PQFP-G48		1.6 mm	7 mm	Not Qualified		e0			7 mm
ADSP-21MOD870-000	Analog Devices	MODEM	COMMERCIAL	GULL WING	100	LFQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		3.3 V	3.3	FLATPACK, LOW PROFILE, FINE PITCH	QFP100,.63SQ,20	Modems	.5 mm	70 Cel	0 Cel	TIN LEAD	QUAD	.056 Mbps	S-PQFP-G100		1.6 mm	14 mm	Not Qualified		e0			14 mm
NCN49597MNRG	Onsemi	PROGRAMMABLE MODEM	INDUSTRIAL	NO LEAD	52	QCCN	SQUARE	PLASTIC/EPOXY	YES			.06 mA	3.3 V	3.3	CHIP CARRIER	LCC52,.31SQ,20	Modems	.5 mm	115 Cel	-40 Cel		QUAD		S-PQCC-N52				Not Qualified
E-STLC7550TQF7	STMicroelectronics	MODEM-SUPPORT CIRCUIT	COMMERCIAL	GULL WING	48	LFQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		3 V	3	FLATPACK, LOW PROFILE, FINE PITCH	QFP48,.35SQ,20	Modems	.5 mm	70 Cel	0 Cel		QUAD	.056 Mbps	S-PQFP-G48	1	1.6 mm	7 mm	Not Qualified		e3/e4			7 mm
TDA8263HN/C1,518	NXP Semiconductors	MODEM-DEMODULATOR	OTHER	NO LEAD	32	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	1			3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-20 Cel	NICKEL PALLADIUM GOLD	QUAD		S-PQCC-N32	1	1 mm	5 mm	Not Qualified		e4			5 mm
TDA8262HN/C1,118	NXP Semiconductors	MODEM-DEMODULATOR	OTHER	NO LEAD	32	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	1			3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-20 Cel	NICKEL PALLADIUM GOLD	QUAD		S-PQCC-N32	1	1 mm	5 mm	Not Qualified		e4			5 mm
NCN49597MNG	Onsemi	PROGRAMMABLE MODEM	INDUSTRIAL	NO LEAD	52	QCCN	SQUARE	PLASTIC/EPOXY	YES			.06 mA	3.3 V	3.3	CHIP CARRIER	LCC52,.31SQ,20	Modems	.5 mm	115 Cel	-40 Cel		QUAD		S-PQCC-N52				Not Qualified			NOT SPECIFIED	NOT SPECIFIED
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
STLC7550TQF7TR	STMicroelectronics	MODEM-SUPPORT CIRCUIT	COMMERCIAL	GULL WING	48	LFQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		3 V	3	FLATPACK, LOW PROFILE, FINE PITCH	QFP48,.35SQ,20	Modems	.5 mm	70 Cel	0 Cel	TIN LEAD	QUAD	.056 Mbps	S-PQFP-G48		1.6 mm	7 mm	Not Qualified		e0			7 mm
ST7538QTR	STMicroelectronics	MODEM	INDUSTRIAL	GULL WING	44	LQFP	SQUARE	PLASTIC/EPOXY	YES	1	BCDMOS		5 V	5,9	FLATPACK, LOW PROFILE	QFP44,.47SQ,32	Modems	.8 mm	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	QUAD	.0048 Mbps	S-PQFP-G44	3	1.6 mm	10 mm	Not Qualified		e4	30	260	10 mm
ST7538Q	STMicroelectronics	MODEM	INDUSTRIAL	GULL WING	44	LQFP	SQUARE	PLASTIC/EPOXY	YES	1	BCDMOS		5 V	5,9	FLATPACK, LOW PROFILE	QFP44,.47SQ,32	Modems	.8 mm	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	QUAD	.0048 Mbps	S-PQFP-G44	3	1.6 mm	10 mm	Not Qualified		e4	30	260	10 mm
DAC8741HRGER	Texas Instruments	PROGRAMMABLE MODEM	MILITARY	NO LEAD	24	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	1					CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	125 Cel	-55 Cel	Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)	QUAD	.03125 Mbps	S-PQCC-N24	2	1 mm	4 mm			e4	30	260	4 mm
MPL360B-I/Y8X	Microchip Technology	PROGRAMMABLE MODEM	INDUSTRIAL	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	1			3.3 V		FLATPACK, THIN PROFILE, FINE PITCH	TQFP48,.35SQ		.5 mm	85 Cel	-40 Cel		QUAD		S-PQFP-G48		1.2 mm	7 mm						7 mm
DAC8740HRGER	Texas Instruments	PROGRAMMABLE MODEM	MILITARY	NO LEAD	24	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	1					CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC24,.15SQ,20		.5 mm	125 Cel	-55 Cel	Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)	QUAD	.03125 Mbps	S-PQCC-N24	2	1 mm	4 mm		DIMENSION CAPTURED BASED ON LINK HTTP://WWW.TI.COM/LIT/DS/SBAS856C/SBAS856C.PDF	e4	NOT SPECIFIED	260	4 mm
DAC8740HRGET	Texas Instruments	PROGRAMMABLE MODEM	MILITARY	NO LEAD	24	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	1					CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC24,.15SQ,20		.5 mm	125 Cel	-55 Cel	Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)	QUAD	.03125 Mbps	S-PQCC-N24	2	1 mm	4 mm		DIMENSION CAPTURED BASED ON LINK HTTP://WWW.TI.COM/LIT/DS/SBAS856C/SBAS856C.PDF	e4	NOT SPECIFIED	260	4 mm
MPL360B-I/SCB	Microchip Technology	PROGRAMMABLE MODEM	INDUSTRIAL	NO LEAD	48	HVQCCN	SQUARE	UNSPECIFIED	YES	1			3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC48,.25SQ,16		.4 mm	85 Cel	-40 Cel		QUAD		S-XQCC-N48		.9 mm	6 mm						6 mm

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.