CS181012-CQZ Cirrus Logic Inc, CS181012-CQZ Datasheet - Page 20

• Manufacturer Part Number: CS181012-CQZ
• Description: IC COBRANET CS181012 144LQFP
• Manufacturer: Cirrus Logic Inc
• Series: CobraNet®r
• Type: Audio Processorr

Specifications of CS181012-CQZ

• Package / Case: 144-LQFP
• Applications: Data Transport
• Mounting Type: Surface Mount
• Mounting Style: SMD/SMT
• Number Of Converters: 8
• 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: 598-1025

CobraNet Hardware User’s Manual
Digital Audio Interface
6.1
20
Digital Audio Interface Timing
Although data is always transmitted and received with a 32-bit resolution by the
synchronous serial ports, the resolution of the data transferred to/from the Ethernet may
be less. Incoming audio data is truncated to the selected resolution. Unused least
significant bits on outgoing data is zero filled.
An DAO1_SCLK edge follows an MCLK_OUT edge by 0.0 to 5.0ns. An FS1 edge follows
a MCLK_OUT edge by 0.0 to 10.0ns.
Setup times for DAI1_DATAx and FS1 are 5.0 ns with a hold time of 0.0 ns with respect to
the DAI1_SCLK edge. Clock to output times for DAO1_DATAx is 0.0 to 12.0 ns from the
edge of DAO1_SCLK.
DAO1_DATAx
DAI1_DATAx
DAO1_SCLK
DAO1_SCLK
MCLK_OUT
Figure 6. Timing Relationship between FS512_OUT, DAO1_SCLK and FS1
Note: The DAO1_SCLK and FS1 might be synchronized with the either the falling edge or
FS1
the rising edge of MCLK_OUT. Which edge is impossible to predict since it depends
on power up timing.
Figure 7. Serial Port Data Timing Overview
©
Copyright 2005 Cirrus Logic, Inc.
0 – 12ns
≥5ns
0 – 10ns
0 – 5ns
≥0ns
DS651UM23
Version 2.3