AK4691EG AKM [Asahi Kasei Microsystems], AK4691EG Datasheet - Page 78

• Manufacturer Part Number: AK4691EG
• Description: 4ch ADC + 2ch DAC with MIC/HP/SPK-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

Figure 51
optimum layout, power supply arrangements and measurement results.
MS0672-E-00
External MIC
Internal MIC
Notes:
Analog Supply
2.6 ~ 5.5V
Analog Supply
2.6 ~ 5.5V
Analog Supply
2.6 ~ 3.6V
- VSS1, VSS2, VSS3 and VSS4 of the AK4691 should be distributed separately from the ground of external
- All digital input pins should not be left floating.
- When the AK4691 is EXT mode (PMPLL bit = “0”), a resistor and capacitor of the VCOC pin is not needed.
- When the AK4691 is PLL mode (PMPLL bit = “1”), a resistor and capacitor of the VCOC pin is shown in
- When the AK4691 is used in master mode, LRCK and BICK pins are floating before M/S bit is changed to “1”.
controllers.
4.
shows the system connection diagram for the AK4691. The evaluation board [AKD4691] demonstrates the
Therefore, 100k Ω around pull-up resistor should be connected to LRCK and BICK pins of the AK4691.
10μ 0.1μ
Figure 51. Typical Connection Diagram (I2CN pin = “H”, 3-wire Mode)
1μ
PRERN2
Analog
Ground
PRERN1 MVDD
Cp
INTR2
MPWR
INTR1
INTL2
MRF
NC
NC
Rp
EXTR2
EXTR1
VCOC
PRELN1
PRELN2
EXTL1
EXTL2
INTL1
2.2μ 0.1μ 10μ 0.1μ
Digital
Ground
SYSTEM DESIGN
VCOM
TVDD1
VSS1
I2CN
NC
0.1μ
MCKI
AVDD
- 78 -
SDTI
LIN
(see Figure 23)
Top View
LINEIN
SDTO2
SDTO1
BEEP
RIN
DSP
R
LOUT
ROUT
BICK
LRCK
LNEOUT
(see Figure 34, Figgure 36)
LVCM
LVDD
DVDD
MCKO
CSN/CAD0 CCLK/SCL
CDTI/SDA
10
MUTET
SVDD
10μ 0.1μ
VSS3
TVDD2
PDN
VSS2
0.1μ
HPL
1μ
MUTE
VSS4
NC
HPR
SPN
SPP
NC
NC
0.1μ
0.1μ
10μ
Digital Supply
1.6 ~ 3.6V
Headphone
(see Figure 38)
Speaker
Analog Supply
2.6 ~ 3.6V
uP
Digital Supply
1.6 ~ 3.6V
[AK4691]
2007/11
Table