CDB5374 Cirrus Logic Inc, CDB5374 Datasheet - Page 29

• Manufacturer Part Number: CDB5374
• Description: Audio Modules & Development Tools 2-Ch DS Modulator & Hydrophone Demo Brd
• Manufacturer: Cirrus Logic Inc

Specifications of CDB5374

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

A microcontroller software connection is made when the SYNC_MC signal output is created by the micro-
controller on command from the system telemetry. The microcontroller can use an internal counter to re-
time the SYNC_MC signal output to the digital filter SYNC input as required.
2.3.6.2
The I
signals passing through the transceivers are actively buffered, full I
cannot be used (i.e. high-impedance NACK).
The I
depending how the telemetry system is to be implemented. Analog switches included on CDB5374 can
bypass the I
When CDB5374 is used in a distributed measurement network, each node must have a unique address.
This address is used to transmit individual configuration commands and tag the source of returned con-
version data. Address assignment can be either dynamic or static, depending how the telemetry system
is to be implemented.
Dynamic address assignment uses daisy-chained I
surement node. Once a node receives an address, it enables the I
so it can be assigned an address.
Static address assignment has a serial number assigned to each node during manufacturing. When
placed in the network, the location is recorded and a master list of serial numbers vs. location is main-
tained. Alternately, a location-dependent serial number can be assigned during installation.
2.3.7
A UART connection on CDB5374 provides a low-speed standardized connection for telemetry solutions
not using I
rectly supported by the CDB5374 PC evaluation software or microcontroller firmware.
DS862DB1
2
2
C
C inputs and outputs can be externally wired to create either a daisy chain or a bus-type network,
Specification
I2C Inputs, 2 wires each
I2C Outputs, 2 wires each
I2C Bypass Switch Control
Specification
UART Connections, 2 wires each
®
UART Connection
telemetry connections to CDB5374 transmit and receive through RS-485 twisted pairs. Because
2
I
C. UART connections are provided for custom programming convenience only and are not di-
2
2
C - SCL, SDA, Bypass
C signals to create a bus network from a daisy chain network following address assignment.
2
C connections to assign an address to each mea-
Value
SCL±, SDA±
BYP_SCL±, BYP_SDA±
BYP_EN
Value
TX/GND, RX/GND
2
2
C bus arbitration and error detection
C bypass switches to the next node
CDB5374
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