CS181022-CQZ Cirrus Logic Inc, CS181022-CQZ Datasheet - Page 18
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CS181022-CQZ
Manufacturer Part Number
CS181022-CQZ
Description
IC COBRANET CS181022 144LQFP
Manufacturer
Cirrus Logic Inc
Series
CobraNet®r
Type
Audio Processorr
Specifications of CS181022-CQZ
Package / Case
144-LQFP
Applications
Data Transport
Mounting Type
Surface Mount
Mounting Style
SMD/SMT
Number Of Converters
16
Core Size
32 Bit
Digital Ic Case Style
LQFP
No. Of Pins
144
Supply Voltage Range
1.71V To 1.89V
Operating Temperature Range
0°C To +70°C
Filter Terminals
SMD
Supply Voltage Min
3.13V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1021 - MODULE COBRANET 4961 CM2 FB598-1020 - MODULE COBRANET 1810 CM2 MT
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
598-1026
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CS181022-CQZ
Manufacturer:
MYSON
Quantity:
320
Company:
Part Number:
CS181022-CQZ
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
Company:
Part Number:
CS181022-CQZR
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
CobraNet Hardware User’s Manual
Synchronization
5.1.1 Internal Mode
5.1.2 External Word Clock Mode
5.1.3 External Master Clock Mode
18
The following synchronization modes are further described below:
All CobraNet clocks are derived from the onboard VCXO. The master clock generated by
the VCXO is available to external circuits via the master clock output.
Conductor—The VCXO is “parked” according to the syncClockTrim setting.
Performer—The VCXO is “steered” to match the clock transmitted by the Conductor.
All CobraNet clocks are derived from the onboard VCXO. The VCXO is steered from an
external clock supplied to the reference clock input. The clock supplied can be any
integral division of the sample clock in the range of 750Hz to 48kHz.
External synchronization lock range: ±5 µs. This specification indicates drift or wander
between the supplied clock and the generated network clock at the conductor. Absolute
phase difference between the supplied reference clock and generated sample clock is
dependant on network topology.
Conductor—This mode gives a means for synchronizing an entire CobraNet network to
an external clock.
Performer—The interface disregards the fine timing information delivered over the
network from the conductor. Coarse timing information from the conductor is still used;
fine timing information is instead supplied by the reference clock. The external clock
source must be synchronous with the network conductor. This mode is useful in
installations where a house sync source is readily available.
The VCXO is disabled and MCLK_IN is used as the master clock for the node. This is a
“hard” synchronization mode. The supplied clock is used directly by the CobraNet
interface for all timing. This mode is primarily useful for devices with multiple CobraNet
interfaces sharing a common master audio clock. The supplied clock must be
24.576 MHz. The supplied clock must have a ±37 ppm precision.
Conductor—The entire network is synchronized to the supplied master clock.
Performer—The node will initially lock to the network clock and will “jam sync” via the
supplied master clock. The external clock source must be synchronous with the network
conductor.
•
•
•
"Internal Mode" on page 18
"External Word Clock Mode" on page 18
"External Master Clock Mode" on page 18
©
Copyright 2005 Cirrus Logic, Inc.
DS651UM23
Version 2.3