Rainbow Electronics MAX9867 - Manual (Page 44)

MAX9867
Ultra-Low Power Stereo Audio Codec
44 ______________________________________________________________________________________
Table 16. Mode Configuration Register
REGISTER B7 B6 B5 B4 B3 B2 B1 B0
REGISTER
ADDRESS
Mode DSLEW VSEN ZDEN 0 JDETEN HPMODE 0x16
BITS FUNCTION
DSLEW
Digital Volume Slew Speed
0 = Digital volume changes are slewed over 10ms.
1 = Digital volume changes are slewed over 80ms.
VSEN
Volume Change Smoothing
0 = Volume changes slew through all intermediate values.
1 = Volume changes occur in one step.
ZDEN
Line Input Zero-Crossing Detection
0 = Line input volume changes occur at zero crossings in the audio waveform or after 62ms if no zero
crossing occurs.
1 = Line-input volume changes occur immediately.
JDETEN
Jack Detection Enable
SHDN = 0: Sleep Mode
Enables pullups on LOUTP and JACKSNS/AUX to detect jack insertion. LSNS and JKSNS are valid.
LOUTP detection is only valid in differential and capacitorless output modes.
SHDN = 1: Normal Mode
Enables the comparator circuitry on JACKSNS/AUX to detect voltage changes. JKMIC is valid if the
microphone circuitry is enabled.
Note: AUXEN must be set to 0 for jack detection to function.
Headphone Amplifier Mode
HPMODE Mode
000 Stereo differential (clickless)
001 Mono (left) differential (clickless)
010 Stereo capacitorless (clickless)
011 Mono (left) capacitorless (clickless)
100 Stereo single-ended (clickless)
101 Mono (left) single-ended (clickless)
110 Stereo single-ended (fast turn-on)
111 Mono (left) single-ended (fast turn-on)
HPMODE
Note: In mono operation, the right amplifier is disabled.