CDB5376 Cirrus Logic Inc, CDB5376 Datasheet

EVALUATION BOARD FOR CS5376

CDB5376

Manufacturer Part Number
CDB5376
Description
EVALUATION BOARD FOR CS5376
Manufacturer
Cirrus Logic Inc
Datasheets

Specifications of CDB5376

Main Purpose
Seismic Evaluation System
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
CS3301A, CS3302A, CS4373A, CS5372A, CS5376A
Primary Attributes
Quad Digital Filter
Secondary Attributes
Graphical User Interface, SPI™ & USB Interfaces
Processor To Be Evaluated
CS330x, CS4373A, CS537x
Interface Type
USB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Other names
598-1778
Features
http://www.cirrus.com
Low-noise, Programmable Gain, Differential Amplifier
• Multiplexed inputs: INA, INB, 800Ω termination
• Rough / fine outputs for CS5371A / 72A / 73A
• Max signal amplitude: 5 V
• Low input bias: 1 nA typical
• 8.5
• 0.180 µV
• -121 dB THD typical (0.0000891%)
• -112 dB THD maximum (0.0002512%)
• Normal operation: 5.5 mA typical
• Power down: 10 µA typical
• VA+ = +2.5 V; VA- = -2.5 V; VD = +3.3 V
Signal Bandwidth:
Selectable Gain:
Differential Inputs, Differential Outputs
Outstanding Noise Performance
Low Total Harmonic Distortion
Low Power Consumption
Small 24-pin SSOP Package
Bipolar Power Supply Configuration
nV/ Hz
& Desription
p-p
between 0.1 Hz and 10 Hz
from 0.1 Hz to 2 kHz
MUX0
MUX1
INA+
INB+
INA-
INB-
x1, x2, x4, x8, x16, x32, x64
DC to 2 kHz
pp
differential
VA+
VA-
Copyright © Cirrus Logic, Inc. 2007
(All Rights Reserved)
CLK
Description
The CS3301A is a low-noise differential input, dif-
ferential output amplifier with programmable gain,
optimized for amplifying signals from low-imped-
ance sensors such as geophones. The gain
settings are binary weighted (x1, x2, x4, x8, x16,
x32, x64) and are selected using simple pin set-
tings. Two sets of external inputs, INA and INB,
simplify system design as inputs from a sensor and
test DAC. An internal 800 Ω termination can also be
selected for noise tests.
Amplifier noise performance is outstanding with a
noise density of 8.5
2 kHz bandwidth. Distortion performance is also ex-
tremely good, typically -121 dB THD at x1 gain. Flat
noise down to 0.1 Hz and low total harmonic distor-
tion make this amplifier ideal for low-frequency,
low-amplitude, differential signals requiring maxi-
mum dynamic range.
ORDERING INFORMATION
See
+
-
-
+
PWDN
page
15.
GND
VD
nV/ Hz
OUTR+
OUTF+
GAIN0
GAIN1
GAIN2
OUTF-
OUTR-
CS3301A
over the 0.1 Hz to
DS757F1
MAR ‘07

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CDB5376 Summary of contents

Page 1

Low-noise, Programmable Gain, Differential Amplifier Features & Desription Signal Bandwidth kHz Selectable Gain: x1, x2, x4, x8, x16, x32, x64 Differential Inputs, Differential Outputs • Multiplexed inputs: INA, INB, 800Ω termination • Rough / fine outputs for ...

Page 2

TABLE OF CONTENTS 1. CHARACTERISTICS AND SPECIFICATIONS .............................................................................. 3 SPECIFIED OPERATING CONDITIONS ....................................................................................... 3 ABSOLUTE MAXIMUM RATINGS ................................................................................................. 3 TEMPERATURE CONDITIONS .................................................................................................... 3 ANALOG CHARACTERISTICS ..................................................................................................... 4 DIGITAL CHARACTERISTICS ...................................................................................................... 7 POWER SUPPLY CHARACTERISTICS ........................................................................................ 8 2. GENERAL DESCRIPTION ............................................................................................................. ...

Page 3

CHARACTERISTICS AND SPECIFICATIONS • Min / Max characteristics and specifications are guaranteed over the • Typical performance characteristics and specifications are measured at nominal supply voltages and T • GND = 0 V. Single-ended voltages with respect to GND, ...

Page 4

ANALOG CHARACTERISTICS Parameter Noise Performance Input Voltage Noise f Input Voltage Noise Density f Input Current Noise Density Distortion Performance Total Harmonic Distortion (Note 5) Linearity (Note 5) Notes: 4. Guaranteed by design and/or characterization. 5. Tested with a full ...

Page 5

ANALOG CHARACTERISTICS (CONT.) Parameter Gain Gain, Differential Gain, Common Mode Gain Accuracy, Absolute Gain Accuracy, Relative Gain Drift Offset Offset Voltage, Input Referred Offset After Calibration, Absolute Offset Calibration Range Offset Voltage Drift 6. Common mode signals pass unchanged through ...

Page 6

ANALOG CHARACTERISTICS (CONT.) Parameter Analog Input Characteristics Input Signal Frequencies Input Voltage Range (Vcm ± Signal) Full Scale Input, Differential Input Impedance, Differential Input Impedance, Common Mode Input Bias Current Crosstalk, Multiplexed Inputs Common to Differential Mode Rejection Analog Output ...

Page 7

DIGITAL CHARACTERISTICS Parameter Digital Characteristics High Level Input Drive Voltage Low Level Input Drive Voltage Input Leakage Current Digital Input Capacitance Rise Times, Digital Inputs Except CLK Fall Times, Digital Inputs Except CLK Master Clock Specifications Master Clock Frequency Master ...

Page 8

POWER SUPPLY CHARACTERISTICS Parameter Power Supply Current, Normal Analog Power Supply Current Digital Power Supply Current Power Supply Current, Power Down (PWDN=1) Analog Power Supply Current Digital Power Supply Current Power Supply Rejection Power Supply Rejection Ratio Notes: 17. All ...

Page 9

GENERAL DESCRIPTION The CS3301A is a low-noise chopper-stabilized CMOS differential input, differential output ampli- fier for precision analog signals between DC and 2 kHz. It has multiplexed inputs, rough / fine out- puts and programmable gains of x1, x2, ...

Page 10

Differential M Sensor U X 2.1.3 Differential Signals Analog signals into and out of the CS3301A are differential, consisting of two halves with equal but opposite magnitude varying about a common mode voltage. A full scale 5 Vpp differential signal ...

Page 11

MUX0 and MUX1 pins as shown in Table 1 on page 7. Although a mux selection is provided to enable the INA and INB switches simultaneously, signal cur- rent should not be driven through them in this ...

Page 12

Connection Diagram Figure 5 on page 12 shows a connection diagram for the CS3301A amplifier when used with the CS5372A dual ∆Σ modulator, the CS4373A Test DAC, and the CS5376A digital filter. The diagram 3 GAIN VA+ VA+ 0.1µF ...

Page 13

PIN DESCRIPTION Positive Analog Power Supply Negative Analog Rough Output Negative Analog Fine Output Negative Analog Power Supply Non-Inverting Input A Inverting Input A Inverting Input B Non-Inverting Input B Test Mode Output Positive Analog Fine Output Positive Analog ...

Page 14

PACKAGE DIMENSIONS 24 PIN SSOP PACKAGE DRAWING TOP VIEW DIM ∝ Notes: 1. “D” and “E1” are reference datums and do not included mold flash ...

Page 15

ORDERING INFORMATION Model CS3301A-IS CS3301A-ISZ (lead free) 6. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION Model Number CS3301A-IS CS3301A-ISZ (lead free) * MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020. DS757F1 Temperature -40 to +85 °C Peak Reflow Temp MSL ...

Page 16

REVISION HISTORY Revision Date PP1 FEB 2007 F1 MAR 2007 Contacting Cirrus Logic Support For all product questions and inquiries contact a Cirrus Logic Sales Representative. To find one nearest you go to www.cirrus.com IMPORTANT NOTICE Cirrus Logic, Inc. ...

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