AK4647VN AKM [Asahi Kasei Microsystems], AK4647VN Datasheet - Page 41

• Manufacturer Part Number: AK4647VN
• Description: Stereo CODEC with MIC/HP-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
When the PMBP bit is set to “1”, the mono input is powered-up. 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 35 and Table 36
show the typical gain example at R
MS0566-E-00
Analog Mixing : Mono Input
MIN
Table 36. MIN Input
Table 35. MIN Input
LOVL bit
HPG bit
i
= 20kΩ. This gain is in inverse proportion to R
0
1
0
1
Ri
Figure 29. Block Diagram of MIN pin
Headphone-Amp Output Gain (typ) at R
LOUT/ROUT Output Gain (typ) at R
MIN
MIN
- 41 -
−16.4dB
−20dB
LOUT/ROUT
+2dB
0dB
HPL/HPR
BEEPH
BEEPL
Default
Default
i
.
LOUT/ROUT pin
HPL/HPR pin
i
= 20kΩ
i
= 20kΩ
[AK4647]
2006/11