参数资料
型号: CDB5378
厂商: Cirrus Logic Inc
文件页数: 9/16页
文件大小: 0K
描述: EVALUATION BOARD FOR CS5378
标准包装: 1
主要目的: 地震评估系统
嵌入式: 是,MCU,8 位
已用 IC / 零件: CS3301A,CS5373A,CS5378
主要属性: 单路数字滤波器
次要属性: 图形用户接口,SPI? 和 USB 接口
已供物品: 板,线缆
相关产品: CS5373A-ISZR-ND - IC DAC/MODULATOR LP/HP 28-SSOP
CS3301-ISZR-ND - IC DIFF AMP PROG LN 24-SSOP
CS3301-ISZ-ND - IC DIFF AMP PROG LN 24-SSOP
CS3301A
2.
GENERAL DESCRIPTION
The CS3301A is a low-noise chopper-stabilized
CMOS differential input, differential output ampli-
architecture of a single channel acquisition system
using a CS3301A, CS5373A, and CS5378.
fier for precision analog signals between DC and
2 kHz. It has multiplexed inputs, rough / fine out-
puts and programmable gains of x1, x2, x4, x8,
2.1
2.1.1
Analog Signals
Analog Inputs
x16, x32, and x64.
The amplifier’s performance makes it ideal for
low-frequency, high dynamic range applications
requiring low distortion and minimal power con-
sumption. It’s optimized for use in acquisition sys-
tems designed around the CS5371A/72A
single/dual ?Σ modulators and the CS5376A quad
digital filter or the CS5373A ?Σ modulator and
CS5378 digital filter.
Figure 3 on page 9 shows the system architecture of
a 4-channel acquisition system using four
CS3301A, two CS5372A, one CS4373A, and one
CS5376A. Figure 4 on page 10 shows the system
The amplifier analog inputs are designed for differ-
ential sensors. Input multiplexing simplifies sys-
tem connections by providing separate inputs for a
sensor and test DAC (INA, INB) as well as an in-
ternal termination for noise tests. The MUX0,
MUX1 digital pins determine which multiplexed
input is connected to the amplifier.
2.1.2 Analog Outputs
The amplifier analog outputs are separated into
rough charge / fine charge signals to easily connect
to the CS5371A/72A/73A modulator inputs. Each
differential output requires two series resistors and
a differential capacitor to create the modulator anti-
alias RC filter.
Geophone
or
Hydrophone
Sensor
M
U
X
AMP
CS3301A
CS3302A
CS5371A
CS5372A
System Telemetry
Geophone
or
Hydrophone
Sensor
M
U
X
AMP
CS3301A
CS3302A
Modulator
CS5376A
μ Controller
or
Configuration
EEPROM
Digital Filter
Geophone
or
Hydrophone
Sensor
Geophone
or
Hydrophone
M
U
X
M
AMP
CS3301A
CS3302A
CS3301A
CS3302A
CS5371A
CS5372A
Modulator
Communication
Interface
Sensor
U
AMP
X
CS4373A
Test
MUX
Switch
Switch
MUX
DAC
Figure 3. Multi-Channel System Architecture
DS757F1
9
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