Instruction Manual

DS882F1 85
CS42L73
6.6.6 Power Down Line Output
Configures the Output Driver power state. If the Line Output Driver or Headphone Driver is powered up,
the DAC that drives them will be powered up; otherwise, it is powered down.
6.6.7 Power Down Headphone
Configures the Headphone Driver power state. If the Line Output Driver or Headphone Driver is powered
up, the DAC that drives them will be powered up; otherwise, it is powered down.
6.7 Charge Pump Frequency and Class H Configuration (Address 09h)
6.7.1 Charge Pump Frequency
Sets the charge pump frequency on FLYN and FLYP.
Note: The output THD+N performance improves at higher frequencies; power consumption increases
at higher frequencies.
6.7.2 Adaptive Power Adjustment
Configures how the power to the Headphone and Line Output amplifiers adapts to the output signal level.
PDN_LO Line Output Driver Status
0 Powered Up
1 Powered Down
PDN_HP Headphone Driver Status
0 Powered Up
1 Powered Down
76543210
CHGFREQ3 CHGFREQ2 CHGFREQ1 CHGFREQ0 Reserved ADPTPWR2 ADPTPWR1 ADPTPWR0
CHGFREQ[3:0] N
0000 0
...
0101 5
...
1111 15
Formula:
Frequency = f
MCLK
/ [4x(N+2)]
ADPTPWR[2:0] Power Supply
000 Adapted to volume setting; Voltage level is determined by the sum of the relevant volume settings
001 Fixed. Headphone and Line1&2 Amp supply = ±VCP
010 Fixed. Headphone and Line1&2 Amp supply = ±VCP/2
011 Fixed. Headphone and Line1&2 Amp supply = ±VCP/3
100 Reserved
101 Reserved
110 Reserved
111 Adapted to Signal; Voltage level is dynamically determined by the output signal