AK4373 Datasheet, PDF (85/98 Pages) Asahi Kasei Microsystems – Low Power Stereo DAC with HP/SPK-Amp

Power Supply ^10u
2 .2 ∼ 3.6V
[Headphone: Differential mode]
Headphone Lch Headphone Rch
[AK4373]
Mono In
1u
25 MUTET
0.1u
VSS3 16
26 ROUT
DVDD 15
27 LOUT
BICK 14
Ri _{28 MIN+}
AK4373EN
LRCK 13
DS P
Ri _{29 MIN-}
Top View
NC 12
30 NC
SDTI 11
31 NC
CDTI 10
32 NC
CCLK 9
μP
Cp
Analog Ground Digital Ground
Notes:
- VSS1, VSS2 and VSS3 of the AK4373 must be distributed separately from the ground of external controllers.
- All digital input pins must not be left floating.
- When the AK4373 is EXT mode (PMPLL bit = “0”), a resistor and a capacitor of the VCOC pin are not needed.
- When the AK4373 is PLL mode (PMPLL bit = “1”), a resistor and a capacitor of the VCOC pin are shown in
Table 5.
- When the AK4373 is used at master mode, LRCK and BICK pins are floating before M/S bit is changed to “1”.
Therefore, 100kΩ around pull-up resistor must be connected to LRCK and BICK pins of the AK4373.
- If the Analog Mixing block will is used as a single-ended, the MIN- pin must be connected to VSS1 in series
with a capacitor to avoid induced external noise.
Figure 69. Typical Connection Diagram (Differential mode, HPBTL bit = “1”, PSEUDO bit = “0”)
MS0991-E-00
- 85 -
2008/09