Datenblatt-pdf.com


AD9634 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer AD9634
Beschreibung 1.8V Analog-to-Digital Converter
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 30 Seiten
AD9634 Datasheet, Funktion
Data Sheet
12-Bit, 170 MSPS/210 MSPS/250 MSPS,
1.8 V Analog-to-Digital Converter
AD9634
FEATURES
SNR = 69.7 dBFS at 185 MHz AIN and 250 MSPS
SFDR = 87 dBc at 185 MHz AIN and 250 MSPS
−150.6 dBFS/Hz input noise at 185 MHz, −1 dBFS AIN and
250 MSPS
Total power consumption: 360 mW at 250 MSPS
1.8 V supply voltages
LVDS (ANSI-644 levels) outputs
Integer 1-to-8 input clock divider (625 MHz maximum input)
Sample rates of up to 250 MSPS
Internal ADC voltage reference
Flexible analog input range
1.4 V p-p to 2.0 V p-p (1.75 V p-p nominal)
ADC clock duty cycle stabilizer
Serial port control
Energy-saving power-down modes
APPLICATIONS
Communications
Diversity radio systems
Multimode digital receivers (3G)
TD-SCDMA, WiMAX, W-CDMA, CDMA2000, GSM, EDGE, LTE
I/Q demodulation systems
Smart antenna systems
General-purpose software radios
Ultrasound equipment
Broadband data applications
GENERAL DESCRIPTION
The AD9634 is a 12-bit, analog-to-digital converter (ADC) with
sampling speeds of up to 250 MSPS. The AD9634 is designed to
support communications applications where low cost, small size,
wide bandwidth, and versatility are desired.
The ADC core features a multistage, differential pipelined
architecture with integrated output error correction logic. The
ADC features wide bandwidth inputs that can support a variety
of user-selectable input ranges. An integrated voltage reference
eases design considerations. A duty cycle stabilizer (DCS) is
provided to compensate for variations in the ADC clock duty cycle,
allowing the converter to maintain excellent performance.
The ADC output data are routed directly to the external 12-bit
LVDS output port.
Flexible power-down options allow significant power savings,
when desired.
FUNCTIONAL BLOCK DIAGRAM
AVDD
AGND
DRVDD
VIN+
VIN–
VCM
PIPELINE 12
12-BIT
ADC
PARALLEL
AD9634
DDR LVDS
AND
DRIVERS
REFERENCE
SERIAL PORT
1-TO-8
CLOCK DIVIDER
D0±./D1±
.
.
D10±/D11±
DCO±
OR±
SCLK SDIO
CSB
CLK+ CLK–
Figure 1.
Programming for setup and control is accomplished using a
3-wire, SPI-compatible serial interface.
The AD9634 is available in a 32-lead LFCSP and is specified over
the industrial temperature range of −40°C to +85°C. This product
is protected by a U.S. patent.
PRODUCT HIGHLIGHTS
1. Integrated 12-bit, 170 MSPS/210 MSPS/250 MSPS ADC.
2. Fast overrange and threshold detect.
3. Proprietary differential input maintains excellent SNR
performance for input frequencies of up to 350 MHz.
4. 3-pin, 1.8 V SPI port for register programming and readback.
5. Pin compatibility with the AD9642, allowing a simple
migration up to 14 bits, and with the AD6672.
Rev. B
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2011–2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com






AD9634 Datasheet, Funktion
Data Sheet
AD9634
Parameter1
TWO-TONE SFDR
fIN = 184.1 MHz, 187.1 MHz (−7 dBFS)
FULL POWER BANDWIDTH
AD9634-170
AD9634-210
AD9634-250
Temperature Min Typ Max Min Typ Max Min Typ Max Unit
25°C 87
89 88 dBc
25°C
1000
1000
1000
MHz
1 See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for a complete set of definitions.
Rev. B | Page 5 of 30

6 Page









AD9634 pdf, datenblatt
Data Sheet
Pin No.
SPI Control
23
22
24
Mnemonic
SCLK
SDIO
CSB
Type
Description
Input
Input/Output
Input
SPI Serial Clock.
SPI Serial Data I/O.
SPI Chip Select (Active Low).
AD9634
Rev. B | Page 11 of 30

12 Page





SeitenGesamt 30 Seiten
PDF Download[ AD9634 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
AD9630Low Distortion 750 MHz Closed-Loop Buffer AmpAnalog Devices
Analog Devices
AD9631Wide Bandwidth Voltage Feedback Op AmpsAnalog Devices
Analog Devices
AD9632Wide Bandwidth Voltage Feedback Op AmpsAnalog Devices
Analog Devices
AD9633Serial LVDS 1.8 V ADCAnalog Devices
Analog Devices
AD96341.8V Analog-to-Digital ConverterAnalog Devices
Analog Devices

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche