CDB5376 Cirrus Logic Inc, CDB5376 Datasheet - Page 28

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

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

VREF+
VREF-
Digital Inputs
MCLK
MSYNC
OFST
PWDN1, PWDN2
Digital Outputs
MDATA1, MDATA2
MFLAG1, MFLAG2
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Input for an external +2.5 V voltage reference relative to VREF-.
This pin should be tied to VA- near the voltage reference output.
A CMOS compatible clock input for the modulator internal master clock, nominally 2.048 MHz
with an amplitude equal to the VD digital power supply.
A low to high transition resets the internal clock phasing of the modulator. This assures the
sampling instant and modulator data output are synchronous to the external system.
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When high, adds approximately -60 mV or -35 mV of internal differential offset to the analog
input signal to guarantee any ΔΣ idle tones are removed. When low, no offset is added.
When high, the modulator is in power down mode. Halting MCLK while in power down mode
reduces modulator power dissipation further.
Modulator data is output as a 1-bit serial data stream at 512 kHz with an MCLK input of
2.048 MHz.
A high level output indicates the modulator is unstable due to an over-range on the analog
inputs.
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Offset Mode Select, pin 14
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Modulator Clock Input, pin 19
Negative Voltage Reference Input, pin 6
Positive Voltage Reference Input, pin 5
Modulator Sync Input, pin 20
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Channel 1 & 2 Power-down Mode, pin 24, 13
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Modulator Data Output, pin 21, 16
Modulator Flag, pin 22, 15
CS5371A CS5372A
DS748F3