AK4343EN AKM [Asahi Kasei Microsystems], AK4343EN Datasheet - Page 49

• Manufacturer Part Number: AK4343EN
• Description: Stereo DAC with HP/RCV/SPK-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
When PMAINL2=PMAINR2 bits = “1”, LIN2 and RIN2 pins can be used as stereo line input for analog mixing. When
the LINS2 and RINS2 bits are set to “1”, the input signal from the LIN2/RIN2 pins is output to Speaker-Amp. When the
LINH2 and RINH2 bits are set to “1”, the input signal from the LIN2/RIN2 pins is output to Headphone-Amp. When the
LINL2/RINR2 bits are set to “1”, the input signal from the LIN2/RIN2 pins is output to the stereo line output amplifier.
When AIN3 bit = “1”, MIN and VCOC pins becomes LIN3 and RIN3 pins, respectively. In this case, PLL is not
available. When PMAINL3=PMAINR3 bits = “1”, LIN2 and RIN2 pins can be used as stereo line input for analog
mixing. When PMMICL=PMMICR=MICL3=MICR3 bits = “1”, analog mixing source is changed from LIN3/RIN3
input to Gain-Amp output signal. When the LINS3 and RINS3 bits are set to “1”, the input signal from the LIN3/RIN3
pins is output to Speaker-Amp. When the LINH3 and RINH3 bits are set to “1”, the input signal from the LIN3/RIN3 pins
is output to Headphone-Amp. When the LINL3/RINR3 bits are set to “1”, the input signal from the LIN3/RIN3 pins is
output to the stereo line output amplifier.
When the analog mixing is used at MICL3=MICR3 bits = “0”, the input resistance of LIN3/RIN3 pins becomes 30kΩ
(typ) at MGAIN1-0 bits = “00” and 20kΩ (typ) at MGAIN1-0 bits = “01”, “10” or “11”, respectively. When the analog
mixing is used at MICL3=MICR3 bits = “1”, the input resistance of LIN3/RIN3 pins becomes 60kΩ (typ) at MGAIN1-0
bits = “00” and 30kΩ (typ) at MGAIN1-0 bits = “01”, “10” or “11”, respectively.
Table 37, Table 38, Table 39 and Table 40show the typical gain.
MS0478-E-01
Analog Mixing: Stereo Input (LIN2/RIN2, AIN3 bit = “1”: LIN3/RIN3 pins)
LIN1/IN1− pin
RIN1/IN1+ pin
RIN2/IN2− pin
LIN2/IN2+ pin
MIN/LIN3 pin
VCOC/RIN3 pin
AK4343
Figure 37. Analog Mixing Circuit
MDIF1 bit
MDIF2 bit
INR1-0 bits
INL1-0 bits
Lineout, Receiver-Amp, HP-Amp, SPK-Amp
- 49 -
Gain-Amp
Gain-Amp
available at PLL mode.
These blocks are not
[AK4343]
2006/10