Datasheet

[AK4646]
MS0557-E-06 2011/06
- 46 -
■ Analog Mixing: Mono Input
When the PMBP bit is set to “1”, the mono input is powered-up. When the BEEPS bit is set to “1”, the input signal from
the MIN pin is output to Speaker-Amp. When the BEEPH bit is set to “1”, the input signal from the MIN pin is output to
Headphone-Amp. When the BEEPL bit is set to “1”, the input signal from the MIN pin is output to the stereo line output
amplifier. The external resister Ri adjusts the signal level of MIN input.
Table 38, and Table 39 show the typical gain
example at R
i
= 20kΩ This gain is in inverse proportion to R
i
.
MIN
Ri
LOUT/ROUT pin
BEEPL
SPP/SPN pin
BEEPS
Figure 7. Block Diagram of MIN pin
LOVL1-0 bits MIN
Æ LOUT/ROUT
00 0dB (default)
01 +2dB
10 +4dB
11 +6dB
Table 38. MIN Input Æ LOUT/ROUT Output Gain (typ) at R
i
= 20kΩ
MIN
Æ SPP/SPN SPKG1-0 bits
ALC2 bit =
“0” ALC2 bit = “1”
00 +4.6dB +6.6dB (default)
01 +6.6dB +8.6dB
10 +8.6dB +10.6dB
11 +10.6dB +12.6dB
Table 39. MIN Input Æ Speaker-Amp Output Gain (typ) at R
i
= 20kΩ