GULL WING Modems 12

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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	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length
AD1801JST-REEL	Analog Devices	MODEM-DATA/FAX/VOICE	OTHER	GULL WING	128	LFQFP	RECTANGULAR	PLASTIC/EPOXY	YES	1			5 V		FLATPACK, LOW PROFILE, FINE PITCH			.5 mm	85 Cel	0 Cel	TIN LEAD	QUAD	1.4 Mbps	R-PQFP-G128		1.6 mm	14 mm	Not Qualified	e0			20 mm
FX614D4	Cml Microcircuits	MODEM	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	.0025 mA	5 V	3.3/5	SMALL OUTLINE	SOP16,.4	Modems	1.27 mm	85 Cel	-40 Cel		DUAL	.0012 Mbps	R-PDSO-G16		2.67 mm	7.49 mm	Not Qualified				10.26 mm
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
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
ST7540TR	STMicroelectronics	MODEM	INDUSTRIAL	GULL WING	28	HTSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	BCDMOS		5 V	5,9	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	TSSOP28,.25	Modems	.65 mm	85 Cel	-40 Cel	MATTE TIN	DUAL	.0048 Mbps	R-PDSO-G28	3	1.2 mm	4.4 mm	Not Qualified	e3	30	260	9.7 mm
SI2456-FT	Silicon Labs	MODEM	COMMERCIAL	GULL WING	24	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	1			3.3 V		SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.65 mm	70 Cel	0 Cel	MATTE TIN	DUAL	.056 Mbps	R-PDSO-G24		1.2 mm	4.4 mm	Not Qualified	e3			7.8 mm
TDA5051AT/C1,512	NXP Semiconductors	MODEM	COMMERCIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	.068 mA	5 V	5	SMALL OUTLINE	SOP16,.4	Modems	1.27 mm	70 Cel	0 Cel		DUAL		R-PDSO-G16	3			Not Qualified			260
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
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

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.