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PDF LC89080 Data sheet ( Hoja de datos )
| Número de pieza | LC89080 | |
| Descripción | Video Signal 3-Channel 8-Bit D/A Converter | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LC89080 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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Ordering number : EN*4030A
CMOS LSI
LC89080, 89080Q
Video Signal 3-Channel 8-Bit D/A Converter
Preliminary
Overview
The LC89080 and LC89080Q are high-speed current-
output D/A converters. They feature 8-bit resolution,
provide 3 channels on a single chip, and can be used in
demodulators for high-speed signals such as video signals.
Features
• Resolution: 8 bits
• D/A converters: Three current-output D/A converter
channels on a single chip
• Maximum conversion speed: 30 MSPS
• Error: ±1.0 LSB (maximum)
• Power supply: +5 V single-voltage power supply
• Power dissipation: 330 mW
• Inputs: TTL compatible
Package Dimensions
unit: mm
3025B-DIP42S
[LC89080]
unit: mm
3052A-QFP48A
[LC89080Q]
SANYO: DIP42S
SANYO: QFP48A
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
D3095HA (OT)/5272TS No. 4030-1/8
1 page  
LC89080, 89080Q
LC89080 Operation
The LC89080 and LC89080Q include three current-matrix D/A converters on chip. These D/A converters each have 63
basic current cells (with current weight I) and two weighted current cells (I/2 and I/4). These current cells are turned on
or off according to the input digital code (a binary code). The sum of these currents is output to the output pins (IO and
IOB) and the output current is converted to a voltage by the output resistor (RO) to acquire the analog output. The table
shows the ideal relationship between the digital input and the analog output when VREFIN is 1 V.
Digital input code
D1 D8
MSB
D2
D3
D4
D5
D6
D7 LSB
000
00
00
0
000
00
00
1
0000001 0
Analog output voltage
IO
(positive output)
IOB
(negative output)
0 0.996
0.004
0.992
0.008
0.988
0111111 1
1000000 0
0.496
0.500
0.500
0.496
1111110 1
1111111 0
1111111 1
Sample Application Circuit: LC89080
0.988
0.992
0.996
0.008
0.004
0
No. 4030-5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LC89080.PDF ] | |
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