Information as of 2000-01-10
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SA621; 1GHz - Low voltage LNA, mixer and VCO

• Description • Features • Applications • Datasheet • Products, packages, availability and ordering • Find similar products •

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Description

The SA621 is a combined low-noise amplifier, mixer and VCO designed for high-performance low-power communication systems from 800-1000MHz. The low-noise preamplifier has a 1.7dB noise figure at 881MHz with 15dB gain and an IP3 intercept of -7dBm at the input. The gain is stabilized by on-chip compensation to vary less than ±0.2dB over -40 to +85°C temperature range. The wide-dynamic-range mixer has a 12dB noise figure and IP3 of +4.5dBm at the input at 881MHz. The integrated VCO circuit with external resonator produces a high quality LO signal that drives the mixer and is buffered to an external PLL synthesizer IC. The nominal current drawn from a single 3V supply is 13.3mA. Additionally, the entire circuit can be powered down to further reduce the supply current to less than 20µA.

Features

• Low current consumption
• Outstanding gain and noise figure
• Excellent gain stability versus temperature and supply voltage
• LNA, mixer and VCO power down capability
• Monotonic VCO frequency vs control voltage

Applications

• 900MHz cellular and cordless front-end
• Spread spectrum receivers
• RF data links
• UHF frequency conversion
• Portable radio

Datasheet

Type nr.	Title	Publication release date	Datasheet status	Page count	File size (kB)	Datasheet
SA621	1GHz - Low voltage LNA, mixer and VCO	07-Nov-97	Product Specification	16	118	Open

Products, packages, availability and ordering

Partnumber	Order code (12nc)	marking/packing	package	device status	buy online
SA621DH	9352 606 31112	Standard marking * tube	DLI	WIT	-
	9352 606 31118	Standard marking * reel pack, SMD, 13"	DLI	DEV	-
SA621DK	9352 221 30112	Standard marking * tube	DLF	RFS
	9352 221 30118	Standard marking * reel pack, SMD, 13"	DLF	RFS	-
	9352 221 30512	Standard marking * tube dry pack	DLF	RFS	-
	9352 221 30518	Standard marking * reel dry pack, SMD, 13"	DLF	RFS	-

Please note, devices listed in the "Products, packages, availability and ordering" table marked with "WIT" are discontinued. Devices marked with "DOD" will be in the near future.
Contact your nearest sales or distributor office for the latest information on product status and availability.

Find similar products:

 SA621 links to the similar products page containing an overview of products that are similar in function or related to the part number(s) as listed on this page. The similar products page includes products from the same catalog tree(s) , relevant selection guides and products from the same functional category.