ak5701 AKM Semiconductor, Inc., ak5701 Datasheet - Page 47

• Manufacturer Part Number: ak5701
• Description: 16-bit ?? Stereo Adc With Pll & Mic-amp
• Manufacturer: AKM Semiconductor, Inc.

Figure 43
demonstrates the optimum layout, power supply arrangements and measurement results.
MS0404-E-02
External MIC
Notes:
Internal MIC
- AVSS and DVSS of the AK5701 should be distributed separately from the ground of external controllers.
- All digital input pins should not be left floating.
- When the AK5701 is EXT mode (PMPLL bit = “0”), a resistor and capacitor of the VCOC pin is not needed.
- When the AK5701 is PLL mode (PMPLL bit = “1”), a resistor and capacitor of the VCOC pin is shown in
- Mic input AC coupling capacitor should be 1μF or less to start the recording within 100ms.
4. 0.1 x Cp in parallel with Cp+Rp improves PLL jitter characteristics.
and
Figure 44
0.1 x Cp
shows the system connection diagram for the AK5701. The evaluation board [AKD5701]
(Note)
Figure 43. Typical Connection Diagram (MIC Input)
≤ 1u
≤ 1u
≤ 1u
≤ 1u
Rp
Cp
19
20
21
22
23
24
MPWR
RIN2
LIN2
RIN1
LIN1
VCOC
SYSTEM DESIGN
Power Supply
2.4 ∼ 3.6V
- 47 -
AK5701
Top View
Power Supply
1.6 ∼ 3.6V
EXLRCK
EXSDTI
MCKO
CSP
SDTO
LRCK
12
11
10
9
8
7
Analog Ground
Digital Ground
DSP
DSP
μP
[AK5701]
2007/08
Table