ak4645 ETC-unknow, ak4645 Datasheet - Page 54

• Manufacturer Part Number: ak4645
• Description: Stereo Codec With Mic/hp-amp
• Manufacturer: ETC-unknow

ASAHI KASEI
When L4DIF bit = “1”, LIN4 and RIN4 pins becomes IN4+ and IN4− pins, respectively.
When PMAINL4 bit = “1”, IN4+ and IN4− pins can be used as full-differentinal mono line input for analog mixing.
When the LINH4 and RINH4 bits are set to “1”, the input signal from the IN4+/IN4− pins is output to Headphone-Amp.
When the LINL4/RINR4 bits are set to “1”, the input signal from the IN4+/IN4− pins is output to the stereo line output
amplifier.
Table 44, Table 45 and Table 46 show the typical gain. Input signal amplitude is defined as (IN4+) − (IN4−).
MS0543-E-00
Analog Mixing: Full-differentical Mono Input (L4DIF bit = “1”: IN4+/IN4− pins)
LIN4/IN4+ pin
RIN4/IN4− pin
LOVL bit
LOVL bit
Table 46. IN4+/IN4− Input
Table 44. IN4+/IN4− Input
HPG bit
Table 45. IN4+/IN4− Input
0
1
0
1
Figure 44. Full-differential Mono Analog Mixing Circuit
0
1
AK4645
L4DIF bit
IN4+/IN4−
IN4+/IN4−
IN4+/IN4−
PMAINL4 bit
PMAINR4 bit
- 54 -
Headphone-Amp Output Gain (typ)
−2.4dB
−6dB
LOUT/ROUT Output Gain (typ)
−6dB
−4dB
+2dB
0dB
LOP/LON Output Gain (typ)
LOUT/ROUT
HPL/HPR
LOP/LON
Lineout, HP-Amp
MIC-Amp Lch
MIC-Amp Rch
Default
Default
Default
[AK4645]
2006/09