Function & level details – Cirrus Logic CRD42L51 User Manual
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DS679RD1
CRD42L51
2. FUNCTION & LEVEL DETAILS
Function
State/LED
Illumination
Description
Reset
ON
CS42L51, CS8416, optical receiver, oscillator held in reset and disabled.
OFF
CS42L51, oscillator out of reset. CS8416 and optical receiver controlled by S/PDIF function. The Line function
is enabled automatically.
Standby
ON
CS8416, optical receiver, oscillator held in reset and disabled; CS42L51 soft powered down.
OFF
All devices out of reset; CS42L51 powered up, register settings restored.
Line
ON
Stereo Line Input selected, unmuted; MIC powered down.
OFF
Stereo Line Input muted.
MIC
ON
Mono MIC selected, powered up, unmuted; Line disabled.
OFF
MIC muted.
S/PDIF
ON
S/PDIF Input selected, unmuted; CS8416 and optical receiver powered up. (Line or MIC mixed with S/PDIF if
enabled.)
OFF
S/PDIF Input muted; CS8416 and optical receiver powered down.
Bass
ON
Tone Control enabled, Bass corner frequency set to 200 Hz, Treble corner frequency set to 7 kHz.
OFF
Tone Control (Bass and Treble) disabled.
Treble
ON
Tone Control enabled, Bass corner frequency set to 200 Hz, Treble corner frequency set to 7 kHz.
OFF
Tone Control (Bass and Treble) disabled.
Limiter
ON
Limiter enabled, attack rate set to 0x02, release rate set to 0x3D.
OFF
Limiter disabled.
ALC
ON
ALC enabled, attack rate set to 0x02, release rate set to 0x3D.
OFF
ALC disabled.
Level Meter
(LED Luminosity)
Level (dB)
ALC/Limiter Threshold (dB)
Line/SPDIF
MIC
Bass/Treble
MAX
MIN/Cushion
LED12_ON
+6.0
+44.0
+12.0
-18.0
-24.0
LED12_75%
+4.0
+42.5
+10.5
-
-
LED12_50%
+2.0
+41.0
-
-
-
LED12_25%
+0.0
+39.5
+9.0
-
-
LED13_ON
-1.5
+38.0
+7.5
-12.0
-18.0
LED13_75%
-3.0
+36.5
+6.0
-
-
LED13_50%
-4.5
+35.0
-
-
-
LED13_25%
-6.0 (default)
+33.5
+4.5
-
-
LED14_ON
-7.5
+32.0 (default)
+3.0
-9.0
-12.0
LED14_75%
-9.0
+30.5
+1.5
-
-
LED14_50%
-11.0
+29.0
-
-
-
LED14_25%
-13.0
+27.5
+0.0 (default)
-
-
LED15_ON
-16.0
+26.0
-1.5
-6.0 (default)
-9.0 (default)
LED15_75%
-19.0
+24.5
-3.0
-
-
LED15_50%
-22.0
+23.0
-
-
-
LED15_25%
-26.0
+21.5
-4.5
-
-
LED16_ON
-30.0
+20.0
-6.0
-3.0
-6.0
LED16_75%
-35.0
+18.5
-7.5
-
-
LED16_50%
-40.0
+17.0
-
-
-
LED16_25%
-45.0
+15.5
-9.0
-
-
LED16_OFF
-51.5
+14.0
-10.5
+0.0
-3.0