|
|
PDF AD9276 Data sheet ( Hoja de datos )
| Número de pieza | AD9276 | |
| Descripción | Octal LNA/VGA/AAF/12-Bit ADC and CW I/Q Demodulator | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AD9276 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
Octal LNA/VGA/AAF/12-Bit ADC
and CW I/Q Demodulator
AD9276
FEATURES
8 channels of LNA, VGA, AAF, ADC, and I/Q demodulator
Low noise preamplifier (LNA)
Input-referred noise: 0.75 nV/√Hz typical at 5 MHz
(gain = 21.3 dB)
SPI-programmable gain: 15.6 dB/17.9 dB/21.3 dB
Single-ended input: VIN maximum = 733 mV p-p/
550 mV p-p/367 mV p-p
Dual-mode active input impedance matching
Bandwidth (BW) > 100 MHz
Full-scale (FS) output: 4.4 V p-p differential
Variable gain amplifier (VGA)
Attenuator range: −42 dB to 0 dB
Postamp gain: 21 dB/24 dB/27 dB/30 dB
Linear-in-dB gain control
Antialiasing filter (AAF)
Programmable second-order LPF from 8 MHz to 18 MHz
Programmable HPF
Analog-to-digital converter (ADC)
12 bits at 10 MSPS to 80 MSPS
SNR: 70 dB
SFDR: 75 dB
Serial LVDS (ANSI-644, IEEE 1596.3 reduced range link)
Data and frame clock outputs
CW mode I/Q demodulator
Individual programmable phase rotation
Output dynamic range per channel >160 dBFS/√Hz
Low power: 195 mW per channel at 12 bits/40 MSPS (TGC),
94 mW per channel for CW Doppler
Flexible power-down modes
Overload recovery in <10 ns
Fast recovery from low power standby mode: <2 μs
100-lead TQFP_EP
APPLICATIONS
Medical imaging/ultrasound
Automotive radar
PRODUCT HIGHLIGHTS
1. Small Footprint.
Eight channels are contained in a small, space-saving
package. Full TGC path, ADC, and I/Q demodulator
contained within a 100-lead, 16 mm × 16 mm TQFP.
2. Low Power.
In TGC mode, low power of 195 mW per channel
at 40 MSPS. In CW mode, ultralow power of 94 mW
per channel.
3. Integrated High Dynamic Range I/Q Demodulator with
Phase Rotation.
4. Ease of Use.
A data clock output (DCO±) operates up to 480 MHz
and supports double data rate (DDR) operation.
5. User Flexibility.
Serial port interface (SPI) control offers a wide range of
flexible features to meet specific system requirements.
6. Integrated Second-Order Antialiasing Filter.
This filter is placed before the ADC and is programmable
from 8 MHz to 18 MHz.
FUNCTIONAL BLOCK DIAGRAM
AVDD1 AVDD2 PDWN STBY
DRVDD
LO-A TO LO-H
LOSW-A TO LOSW-H
LI-A TO LI-H
LG-A TO LG-H
LNA
I/Q
DEMODULATOR
VGA
AAF
8 CHANNELS
12-BIT
ADC
SERIAL
LVDS
DOUTA+ TO DOUTH+
DOUTA– TO DOUTH–
LO
GENERATION
REFERENCE
SERIAL
PORT
INTERFACE
DATA
RATE
MULTIPLIER
FCO+
FCO–
DCO+
DCO–
Figure 1.
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 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
www.analog.com
Fax: 781.461.3113
©2009 Analog Devices, Inc. All rights reserved.
1 page  
AD9276
SPECIFICATIONS
AC SPECIFICATIONS
AVDD1 = 1.8 V, AVDD2 = 3.0 V, DRVDD = 1.8 V, 1.0 V internal ADC reference, fIN = 5 MHz, RS = 50 Ω, LNA gain = 21.3 dB, LNA bias = high,
PGA gain = 27 dB, GAIN− = 0.8 V, AAF LPF cutoff = fSAMPLE/3 (Mode I/Mode II), fSAMPLE/4.5 (Mode III), HPF cutoff = LPF cutoff/20.7 (default),
Mode I = fSAMPLE = 40 MSPS, Mode II = fSAMPLE = 65 MSPS, Mode III = fSAMPLE = 80 MSPS, full temperature, ANSI-644 LVDS mode, unless
otherwise noted.
Table 1.
Parameter1
LNA CHARACTERISTICS
Gain
Input Voltage Range
(Single-Ended)
Input Common Mode (LI-x, LG-x)
Output Common Mode (LO-x)
Output Common Mode (LOSW-x)
Input Resistance (LI-x)
Input Capacitance (LI-x)
−3 dB Bandwidth
Input Noise Voltage
Input Noise Current
1 dB Input Compression Point
Noise Figure
Active Termination Matched
Unterminated
FULL-CHANNEL (TGC)
CHARACTERISTICS
AAF Low-Pass Cutoff
In Range
In Range AAF Bandwidth
Tolerance
Group Delay Variation
Input-Referred Noise Voltage
Test Conditions/Comments
Single-ended input to differential output
Single-ended input to single-ended output
LNA output limited to 4.4 V p-p differential
output
LNA gain = 15.6 dB
LNA gain = 17.9 dB
LNA gain = 21.3 dB
Switch off
Switch on
RFB = 250 Ω
RFB = 500 Ω
RFB = ∞
RS = 0 Ω, RFB = ∞
LNA gain = 15.6 dB
LNA gain = 17.9 dB
LNA gain = 21.3 dB
RFB = ∞
GAIN+ = 0 V
LNA gain = 15.6 dB
LNA gain = 17.9 dB
LNA gain = 21.3 dB
RS = 50 Ω
LNA gain = 15.6 dB, RFB = 200 Ω
LNA gain = 17.9 dB, RFB = 250 Ω
LNA gain = 21.3 dB, RFB = 350 Ω
LNA gain = 15.6 dB, RFB = ∞
LNA gain = 17.9 dB, RFB = ∞
LNA gain = 21.3 dB, RFB = ∞
−3 dB, programmable
f = 1 MHz to 18 MHz, GAIN+ = 0 V to 1.6 V
GAIN+ = 1.6 V, RFB = ∞
LNA gain = 15.6 dB
LNA gain = 17.9 dB
LNA gain = 21.3 dB
Min
8
Typ Max
15.6/17.9/21.3
9.6/11.9/15.3
733
550
367
1.0
1.5
High-Z
1.5
50
100
15
22
100
0.98
0.86
0.75
1
1.0
0.8
0.5
4.8
4.1
3.2
3.4
2.8
2.3
18
±10
±0.5
1.26
1.04
0.85
Unit
dB
dB
mV p-p
mV p-p
mV p-p
V
V
Ω
V
Ω
Ω
kΩ
pF
MHz
nV/√Hz
nV/√Hz
nV/√Hz
pA/√Hz
V p-p
V p-p
V p-p
dB
dB
dB
dB
dB
dB
MHz
%
ns
nV/√Hz
nV/√Hz
nV/√Hz
Rev. 0 | Page 4 of 48
5 Page 
AD9276
ABSOLUTE MAXIMUM RATINGS
Table 4.
Parameter
AVDD1 to GND
AVDD2 to GND
DRVDD to GND
GND to GND
AVDD2 to AVDD1
AVDD1 to DRVDD
AVDD2 to DRVDD
Digital Outputs (DOUTx+, DOUTx−,
DCO+, DCO−, FCO+, FCO−) to GND
CLK+, CLK−, SDIO to GND
LI-x, LO-x, LOSW-x to GND
CWI−, CWI+, CWQ−, CWQ+ to GND
PDWN, STBY, SCLK, CSB to GND
GAIN+, GAIN−, RESET, 4LO+, 4LO−,
GPO0, GPO1, GPO2, GPO3 to GND
RBIAS, VREF to GND
Operating Temperature Range (Ambient)
Storage Temperature Range (Ambient)
Maximum Junction Temperature
Lead Temperature (Soldering, 10 sec)
Rating
−0.3 V to +2.0 V
−0.3 V to +3.9 V
−0.3 V to +2.0 V
−0.3 V to +0.3 V
−2.0 V to +3.9 V
−2.0 V to +2.0 V
−2.0 V to +3.9 V
−0.3 V to +2.0 V
−0.3 V to +2.0 V
−0.3 V to +3.9 V
−0.3 V to +3.9 V
−0.3 V to +2.0 V
−0.3 V to +3.9 V
−0.3 V to +2.0 V
−40°C to +85°C
−65°C to +150°C
150°C
300°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL IMPEDANCE
Table 5.
Airflow Velocity (m/s)
0.0
1.0
2.5
θJA1
θJB
θJC
Unit
20.3 °C/W
14.4 7.6 4.7 °C/W
12.9 °C/W
1 θJA for a 4-layer PCB with solid ground plane (simulated). Exposed pad
soldered to PCB.
ESD CAUTION
Rev. 0 | Page 10 of 48
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AD9276.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AD9271 | Octal LAN/VGA/AAF/ADC and Crosspoint Switch | Analog Devices |
| AD9272 | Octal LNA/VGA/AAF/ADC and Crosspoint Switch | Analog Devices |
| AD9273 | Octal LNA/VGA/AAF/ADC and Crosspoint Switch | Analog Devices |
| AD9276 | Octal LNA/VGA/AAF/12-Bit ADC and CW I/Q Demodulator | 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, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |