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DATA SHEET

碌

PC2743GS/

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PC2744GS

FREQUENCY DOWN CONVERTER FOR

VHF-UHF BAND TV/VCR TUNER

BIPOLAR ANALOG INTEGRATED CIRCUIT

DESCRIPTION

The

碌

PC2743GS/

碌

PC2744GS are Silicon monolithic ICs designed for TV/VCR tuner applications. These ICs

consist of a double balanced mixer (DBM), local oscillator, preamplifier for prescaler operation, IF amplifier, regulator,

UHF/VHF switching circuit, and so on. These one-chip ICs cover a wide frequency band from VHF to UHF bands.

These ICs are packaged in 20-pin SOP (small outline package) suitable for surface mounting. So, these ICs enable

to produce economical and physically small or high-density VHF-UHF tuner and reduced the tuner development time.

FEATURES

鈥?VHF to UHF band operation.

鈥?Low distortion (

碌

PC2743GS), high conversion gain and low noise figure (

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PC2744GS).

鈥?Internal double balanced mixers (DBM) minimize carrier leak.

鈥?Low oscillation frequency drift against supply voltage and temperature fluctuation due to balanced type UHF

oscillator.

鈥?Low output-impedance-fluctuation due to single-end push-pull IF amplifier.

鈥?Supply voltage: 9 V

鈥?Packaged in 20-pin SOP suitable for surface mounting

ORDERING INFORMATION

PART NUMBER

PACKAGE

20-pin plastic SOP (300 mil)

PACKAGING STYLE

Plastic magazine case

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PC2743GS

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PC2744GS

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PC2743GS-E1

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PC2744GS-E1

20-pin plastic SOP (300 mil)

Embossed tape 24 mm wide, 2.5 k/REEL

Pin 1 indicates pull-out direction of tape

Caution electro-static sensitive device

The information in this document is subject to change without notice. Before using this document, please

confirm that this is the latest version.

Not all devices/types available in every country. Please check with local NEC representative for availability

and additional information.

Document No. P10192EJ3V0DS00 (3rd edition)

Date Published October 1999 N CP(K)

Printed in Japan

The mark

shows major revised points.

漏

1993,1999

next

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