CS43L42-KZ Cirrus Logic Inc, CS43L42-KZ Datasheet - Page 23

• Manufacturer Part Number: CS43L42-KZ
• Description: D/A Converter (D-A) IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS43L42-KZ

• No. Of Pins: 24
• Peak Reflow Compatible (260 C): No
• No. Of Bits: 24 Bit
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Interface Type: Serial
• Package / Case: 24-TSSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

4.10.3 PEAK SIGNAL LIMITER ENABLE (LIM_EN)
4.10.4 ATAPI CHANNEL MIXING AND MUTING (ATAPI)
DS481PP2
Function:
Function:
Note: The A=B bit should be set to ‘1’ for optimal limiter performance.
Default = 0
0 - Disabled
1 - Enabled
The CS43L42 will limit the maximum signal amplitude to prevent clipping when this function is enabled.
Peak Signal Limiting is performed by first decreasing the Bass and Treble Boost Levels. If the signal is
still clipping, the digital attenuation is increased. The attack rate is determined by the Limiter Attack Rate
register.
Once the signal has dropped below the clipping level, the attenuation is decreased back to the user se-
lected level followed by the Bass Boost being increased back to the user selected level. The release rate
is determined by the Limiter Release Rate register.
Default = 1001 - AOUTA/HP_A = L, AOUTB/HP_B = R (Stereo)
The CS43L42 implements the channel mixing functions of the ATAPI CD-ROM specification. Refer to Ta-
ble 7 and Figure 31 for additional information.
Note:
ATAPI3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
All mixing functions occur prior to the digital volume control.
ATAPI2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
ATAPI1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Table 7. ATAPI Decode
ATAPI0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
AOUTA/HP_A
[(L+R)/2]
[(L+R)/2]
[(L+R)/2]
[(L+R)/2]
MUTE
MUTE
MUTE
MUTE
R
R
R
R
L
L
L
L
AOUTB/HP_B
[(L+R)/2]
[(L+R)/2]
[(L+R)/2]
[(L+R)/2]
MUTE
MUTE
MUTE
MUTE
R
R
R
R
L
L
L
L
CS43L42
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