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參數資料
| 型號： | μPC2743GS |
| 廠商： | NEC Corp. |
| 英文描述： | Frequecy Down Converter For VHF-UHF Band TV/VCR Tuner(應用于VHF-UHF調諧器的下變頻轉換器) |
| 中文描述： | Frequecy下變頻器甚高頻，超高頻波段電視/錄像機調諧器（應用于甚高頻，超高頻調諧器的下變頻轉換器） |
| 文件頁數： | 1/16頁 |
| 文件大?。?/td> | 91K |
| 代理商： | ΜPC2743GS |
1993,1999
DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
μ
PC2743GS/
μ
PC2744GS
Document No. P10192EJ3V0DS00 (3rd edition)
Date Published October 1999 N CP(K)
Printed in Japan
DESCRIPTION
The
μ
PC2743GS/
μ
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
VHF to UHF band operation.
Low distortion (
μ
PC2743GS), high conversion gain and low noise figure (
μ
PC2744GS).
Internal double balanced mixers (DBM) minimize carrier leak.
Low oscillation frequency drift against supply voltage and temperature fluctuation due to balanced type UHF
oscillator.
Low output-impedance-fluctuation due to single-end push-pull IF amplifier.
Supply voltage: 9 V
Packaged in 20-pin SOP suitable for surface mounting
ORDERING INFORMATION
PART NUMBER
PACKAGE
PACKAGING STYLE
μ
PC2743GS
μ
PC2744GS
20-pin plastic SOP (300 mil)
Plastic magazine case
μ
PC2743GS-E1
μ
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
FREQUENCY DOWN CONVERTER FOR
VHF-UHF BAND TV/VCR TUNER
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.
The mark shows major revised points.
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