CS4299-BQZ Cirrus Logic Inc, CS4299-BQZ Datasheet - Page 18

• Manufacturer Part Number: CS4299-BQZ
• Description: IC CODEC AC'97 W/SRC 48-LQFP
• Manufacturer: Cirrus Logic Inc
• Series: SoundFusion™r
• Type: Audio Codec '97r

Specifications of CS4299-BQZ

• Data Interface: Serial
• Resolution (bits): 18 b, 20 b
• Number Of Adcs / Dacs: 1 / 1
• Sigma Delta: Yes
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.3 V ~ 5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Audio Codec Type: Stereo
• No. Of Adcs: 1
• No. Of Dacs: 1
• No. Of Input Channels: 8
• No. Of Output Channels: 3
• Adc / Dac Resolution: 20bit
• Sampling Rate: 48kSPS
• Ic Interface Type: Serial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.3
The CS4299 is designed to handle SYNC protocol
violations. The following are situations where the
SYNC protocol has been violated:
•
•
•
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18
The SYNC signal is not sampled high for exact-
ly 16 BIT_CLK clock cycles at the start of an
audio frame.
The SYNC signal is not sampled high on the
256th BIT_CLK clock period after the previous
SYNC assertion.
The SYNC signal goes active high before the
256th BIT_CLK clock period after the previous
AC-Link Protocol Violation - Loss of
SYNC
Upon loss of synchronization with the controller,
the CS4299 will ‘clear’ the Codec Ready bit in the
serial data input frame until two valid frames are
detected. During this detection period, the CS4299
will ignore all register reads and writes and will
discontinue the transmission of PCM capture data.
In addition, if the LOSM bit in the Misc. Crystal
Control Register (Index 60h) is ‘set’ (default), the
CS4299 will mute all analog outputs. If the LOSM
bit is ‘clear’, the analog outputs will not be muted.
SYNC assertion.
CS4299
CS4299
DS319PP6