PDF AD9801 Data sheet ( Hoja de datos )

Número de pieza	AD9801
Descripción	CCD Signal Processor For Electronic Cameras
Fabricantes	Analog Devices
Logotipo
Hay una vista previa y un enlace de descarga de AD9801 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas
No Preview Available ! a FEATURES 10-Bit, 18 MSPS A/D Converter 18 MSPS Full-Speed CDS Low Noise, Wideband PGA Internal Voltage Reference No Missing Codes Guaranteed +3 V Single Supply Operation Low Power CMOS: 185 mW 48-Pin TQFP Package CCD Signal Processor For Electronic Cameras AD9801 FUNCTIONAL BLOCK DIAGRAM PBLK 19 PIN 27 DIN 26 CLPDM PGACONT1 PGACONT2 SHP SHD ADCCLK 23 29 30 21 22 16 CLAMP TIMING GENERATOR CDS PGA S/H A/D 10 2 DOUT 11 REFERENCE CLAMP AD9801 12 DRVDD 37 48 47 18 CMLEVEL VRT VRB STBY 20 33 43 CLPOB ACVDD ADVDD 17 DVDD PRODUCT DESCRIPTION The AD9801 is a complete CCD signal processor developed for electronic cameras. It is well suited for both video conferencing and consumer level still camera applications. The signal processing chain is comprised of a high speed CDS, variable gain PGA and 10-bit ADC. Required clamping circuitry and an onboard voltage reference are also provided. The AD9801 operates from a single +3 V supply with a typical power consumption of 185 mW. The AD9801 is packaged in a space saving 48-pin thin-quad flatpack (TQFP) and is specified over an operating temperature range of 0°C to +70°C. PRODUCT HIGHLIGHTS 1. On-Chip Input Clamp and CDS Clamp circuitry and high speed correlated double sampler allow for simple ac coupling to interface a CCD sensor at full 18 MSPS conversion rate. 2. On-Chip PGA The AD9801 includes a low noise, wideband amplifier with analog variable gain from 0 dB to 31.5 dB (linear in dB). 3. 10-Bit, High Speed A/D Converter A linear 10-bit ADC is capable of digitizing CCD signals at the full 18 MSPS conversion rate. (Typical DNL is ± 0.5 LSB and no missing code performance is guaranteed.) 4. Low Power At 185 mW, the AD9801 consumes a fraction of the power of presently available multichip solutions. The part’s power- down mode (15 mW) further enhances its desirability in low power, battery operated applications. 5. Digital I/O Functionality The AD9801 offers three-state digital output control. 6. Small Package Packaged in a 48-pin, surface-mount thin-quad flatpack, the AD9801 is well suited to very tight, low headroom designs. REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 1997 1 page EQUIVALENT INPUT CIRCUITS DVDD DRVDD DVSS DRVSS Figure 1. Pins 2–11 (DB0–DB9) DVDD 200Ω DSUBST DVSS Figure 2. Pin 21 (SHP) and Pin 22 (SHD) DVDD ADVDD 200Ω 9.3kΩ DSUBST DVSS Figure 3. Pin 16 (ADCCLK) ADVSS Figure 4. Pin 37 (CMLEVEL) AD9801 ACVDD 50Ω 10pF SUBST ACVSS Figure 6. Pin 26 (DIN) and Pin 27 (PIN) ACVDD PGACONT1 10kΩ SUBST 1kΩ PGACONT2 8kΩ 8kΩ ACVDD Figure 7. Pin 29 (PGACONT1) and Pin 30 (PGACONT2) ACVSS 10kΩ 50Ω 5.25kΩ 30kΩ SUBST ACVSS Figure 8. Pin 32 (CLAMP BIAS) ACVDD ACVDD 200Ω SUBST DVSS Figure 5. Pin 25 (CCDBYP2) and Pin 28 (CCDBYP1) SUBST ADVSS Figure 9. Pin 48 (VRT) and Pin 47 (VRB) REV. 0 –5– 5 Page EVALUATION BOARD Figure 22 shows the schematic for the AD9801 evaluation board. Notice the use of a common ground and supply for the AD9801, and the extensive supply and reference decoupling. AD9801 AVCC AVCC R6 10kΩ CW 37 C37 U6 0.1µF AD707 24 C56 0.1µF 6 C50 R14 0.1µF 68Ω AVSS C49 0.01µF TP25 C55 0.01µF PGACONT1 C70 10µF 16V AVCC AVCC R7 10kΩ CW 37 C36 U7 0.1µF AD707 24 C52 0.1µF 6 C51 R15 0.1µF 68Ω AVSS C54 0.01µF TP24 C57 0.01µF PGACONT2 C71 10µF 16V C61 0.1µF C7 0.1µF C12 0.1µF C9 C10 C11 2µF 2µF 0.1µF PGACONT1 PGACONT2 PIN JP3 JP2 VDD 1kΩ CW 0.1µF VDD JP1 DIN 36 35 34 33 32 31 30 29 28 27 26 25 C8 0.1µF C6 0.1µF VDD C5 0.1µF C4 0.1µF C2 0.1µF C1 1µF 37 CMLEVEL 38 INT_BIAS2 39 MODE2 40 MODE1 41 ADVSS 42 ADVDD 43 ADVDD 44 ADVSS 45 ADVSS 46 SUBST 47 VRB 48 VRT U1 AD9801 DVSS 24 CLPDM 23 SHD 22 SHP 21 CLPOB 20 PBLK 19 STBY 18 DVDD 17 ADCCLK 16 DVSS 15 DSUBST 14 DRVSS 13 TP5 STBY PBLK CLPOB VDD C13 0.1µF C29 0.01µF C3 0.1µF 1 2 3 4 5 6 7 8 9 10 11 12 C14 0.1µF +3V JP1 +5V JP2 TP28 FB1 C46 0.1µF C47 22µF TP27 FB2 C45 0.1µF C44 22µF C28 FB4 0.01µF VDD C66 0.1µF VDD –5V JP3 FB3 C40 0.1µF TP26 C41 22µF AVSS C68 0.1µF AVCC C67 0.1µF GND JP5 TP29 C23 0.1µF JP4 SHP SHD CLPDM ADCCLK 40 PIN HEADER 21 43 65 87 10 9 12 11 14 13 16 15 18 17 20 19 22 21 24 23 26 25 28 27 30 29 32 31 34 33 36 35 38 37 40 39 D9 (MSB) D8 D7 D6 D5 D4 D3 D2 D1 D0 (LSB) ADCCLK Figure 22. AD9801EB Schematic REV. 0 –11– 11 Page

Páginas	Total 12 Páginas
PDF Descargar	[ Datasheet AD9801.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
AD9801	CCD Signal Processor For Electronic Cameras	Analog Devices
AD9802	CCD Signal Processor For Electronic Cameras	Analog Devices
AD9803	CCD Signal Processor	Analog Devices
AD9804	Complete 10-Bit 18 MSPS CCD Signal Processor	Analog Devices

Número de pieza	Descripción	Fabricantes
SLA6805M	High Voltage 3 phase Motor Driver IC.	Sanken
SDC1742	12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.	Analog Devices

DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.

DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar