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AD9234 データシート PDF ( 特性, スペック, ピン接続図 )

部品番号 AD9234
部品説明 Dual Analog-to-Digital Converter
メーカ Analog Devices
ロゴ Analog Devices ロゴ 

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AD9234 Datasheet, AD9234 PDF,ピン配置, 機能
Data Sheet
12-Bit, 1 GSPS/500 MSPS JESD204B,
Dual Analog-to-Digital Converter
AD9234
FEATURES
JESD204B (Subclass 1) coded serial digital outputs
1.5 W total power per channel at 1 GSPS (default settings)
SFDR
79 dBFS at 340 MHz (1 GSPS)
86 dBFS at 340 MHz (500 MSPS)
SNR
63.4 dBFS at 340 MHz (AIN = −1.0 dBFS, 1 GSPS)
65.6 dBFS at 340 MHz (AIN = −1.0 dBFS, 500 MSPS)
ENOB = 10.4 bits at 10 MHz
DNL = ±0.16 LSB; INL = ±0.35 LSB
Noise density
−151 dBFS/Hz (1 GSPS)
−150 dBFS/Hz (500 MSPS)
1.25 V, 2.5 V, and 3.3 V dc supply operation
Low swing full scale input
1.34 V p-p nominal (1 GSPS)
1.63 V p-p nominal (500 MSPS)
No missing codes
Internal ADC voltage reference
Flexible termination impedance
400 Ω, 200 Ω, 100 Ω, and 50 Ω differential
2 GHz usable analog input full power bandwidth
95 dB channel isolation/crosstalk
Amplitude detect bits for efficient AGC implementation
Differential clock input
Optional decimate-by-2 DDC per channel
Differential clock input
Integer clock divide by 1, 2, 4, or 8
Flexible JESD204B lane configurations
Small signal dither
APPLICATIONS
Communications
Diversity multiband, multimode digital receivers
3G/4G, TD-SCDMA, W-CDMA, GSM, LTE
Point-to-point radio systems
Digital predistortion observation path
General-purpose software radios
Ultrawideband satellite receiver
Instrumentation (spectrum analyzers, network analyzers,
integrated RF test solutions)
Digital oscilloscopes
High speed data acquisition systems
DOCSIS 3.0 CMTS upstream receive paths
HFC digital reverse path receivers
FUNCTIONAL BLOCK DIAGRAM
AVDD1 AVDD2 AVDD3 AVDD1_SR DVDD DRVDD SPIVDD
(1.25V) (2.5V) (3.3V) (1.25V) (1.25V) (1.25V) (1.8V TO 3.3V)
VIN+A
VIN–A
FD_A
FD_B
VIN+B
VIN–B
V_1P0
CLK+
CLK–
BUFFER
ADC
CORE 12
DECIMATE
BY 2
SIGNAL
MONITOR
12
ADC
CORE
DECIMATE
BY 2
BUFFER
CLOCK
GENERATION
AND ADJUST
JESD204B
SUBCLASS 1
CONTROL
4 SERDOUT0±
SERDOUT1±
SERDOUT2±
SERDOUT3±
FAST
DETECT
SYNCINB±
SYSREF±
÷2
÷4
SPI CONTROL
SIGNAL
MONITOR
PDWN/
÷8
AD9234
STBY
AGND DRGND DGND SDIO SCLK CSB
Figure 1.
PRODUCT HIGHLIGHTS
1. Low power consumption analog core, 12-bit, 1.0 GSPS dual
analog-to-digital converter (ADC) with 1.5 W per channel.
2. Wide full power bandwidth supports IF sampling of signals
up to 2 GHz.
3. Buffered inputs with programmable input termination
eases filter design and implementation.
4. Flexible serial port interface (SPI) controls various product
features and functions to meet specific system requirements.
5. Programmable fast overrange detection.
6. 9 mm × 9 mm 64-lead LFCSP.
7. Pin compatible with the AD9680 14-bit, 1 GSPS/500 MSPS
dual ADC.
Rev. A
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 ©2014–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com

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