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PDF CRD5376 Data sheet ( Hoja de datos )
| Número de pieza | CRD5376 | |
| Descripción | Multichannel Seismic Reference Design | |
| Fabricantes | Cirrus Logic | |
| Logotipo |  |
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CRD5376
Multichannel Seismic Reference Design
Features
z Four Channel Seismic Acquisition Node
– CS3301 geophone amplifiers (2x)
– CS3302 hydrophone amplifiers (2x)
– CS5372 dual ∆Σ modulators (2x)
– CS5376A quad digital filter (1x)
– CS4373A ∆Σ test DAC (1x)
– Precision voltage reference
– Clock recovery PLL
z On-board Microcontroller
– SPI™ interface to digital filter
– USB communication with PC
z PC Evaluation Software
– Register setup & control
– FFT frequency analysis
– Time domain analysis
– Noise histogram analysis
General Description
The CRD5376 board is a reference design for the Cirrus
Logic multichannel seismic chip set. Data sheets for the
CS3301, CS3302, CS4373A, CS5371/72, and CS5376A
devices should be consulted when using the CRD5376
reference design.
Pin headers connect external differential geophone or
hydrophone sensors to the analog inputs of the mea-
surement channels. An on-board test DAC creates
precision differential analog signals for in-circuit perfor-
mance testing without an external signal source.
The reference design includes an 8051-type microcon-
troller with hardware SPI™ and USB serial interfaces.
The microcontroller communicates with the digital filter
via SPI and with the PC evaluation software via USB.
The PC evaluation software controls register and coeffi-
cient initialization and performs time domain, histogram,
and FFT frequency analysis on captured data.
ORDERING INFORMATION
CRD5376
Reference Design
www.cirrus.com
Copyright © Cirrus Logic, Inc. 2006
(All Rights Reserved)
FEB ‘06
DS612RD1
1 page  
CRD5376
1. INITIAL SETUP
1.1 Kit Contents
The CRD5376 reference design kit includes:
• CRD5376 reference design board
• USB cable (A to mini-B)
• Software download information card
The following are required to operate CRD5376, and are not included:
• Bipolar power supply with clip lead outputs (+/- 3.3 V @ 100 mA)
• PC running Windows 2000 or XP with an available USB port
• Internet access to download the evaluation software
1.2 Hardware Setup
To set up the CRD5376 reference design hardware:
• Verify all jumpers are in the default settings (see next section).
• With power off, connect the CRD5376 power inputs to the power supply outputs.
J8 pin 17 = -3.3 V
J8 pin 18 = 0 V
J8 pin 19 = +3.3 V
J8 pin 20 = 0 V
• Connect the USB cable between the CRD5376 USB connector and the PC USB port.
• Proceed to the Software Setup section to install the evaluation software and USB driver.
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5 Page 
2. HARDWARE DESCRIPTION
2.1 Block Diagram
CRD5376
Figure 1. CRD5376 Block Diagram
Major blocks of the CRD5376 reference design include:
• CS3301 Geophone Amplifier (2x)
• CS3302 Hydrophone Amplifier (2x)
• CS5372 Dual ∆Σ Modulators (2x)
• CS5376A Digital Filter
• CS4373A ∆Σ Test DAC
• Analog Switch Multiplexer
• Precision Voltage Reference
• Microcontroller with USB
• Phase Locked Loop
• RS-485 Transceivers
• Voltage Regulators
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11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CRD5376.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| CRD5376 | Multichannel Seismic Reference Design | Cirrus Logic |
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