AK5700VN AKM [Asahi Kasei Microsystems], AK5700VN Datasheet - Page 46

• Manufacturer Part Number: AK5700VN
• Description: 16-Bit ?? Mono ADC with PLL & MIC-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
Figure 39 and Figure 40 shows the system connection diagram for the AK5700. An evaluation board [AKD5700] is
available which demonstrates the optimum layout, power supply arrangements and measurement results.
MS0569-E-01
External MIC
Notes:
Internal MIC
- AVSS and DVSS of the AK5700 should be distributed separately from the ground of external controllers.
- All digital input pins should not be left floating.
- When the AK5700 is EXT mode (PMPLL bit = “0”), a resistor and capacitor of VCOC pin is not needed.
- When the AK5700 is PLL mode (PMPLL bit = “1”), a resistor and capacitor of VCOC pin is shown in Table 4.
- Mic input AC coupling capacitor should be 1μF or less to start the recording within 100ms.
0.1 x Cp in parallel with Cp+Rp improves PLL jitter characteristics.
0.1 x Cp
(Note)
Figure 39. Typical Connection Diagram (MIC Input)
≤ 1u
≤ 1u
Rp
Cp
19
20
21
22
23
24
MPWR
TEST
AIN2
AIN‐
AIN1
VCOC
SYSTEM DESIGN
Power Supply
2.4 ∼ 3.6V
- 46 -
AK5700VN
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
[AK5700]
2006/12