AK4635 AKM [Asahi Kasei Microsystems], AK4635 Datasheet - Page 78

• Manufacturer Part Number: AK4635
• Description: 16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

Others
Mode
12
13
< MIC differential Input >
Rev. 0.6
0
1
2
3
6
7
Notes:
PLL3
- VSS1, VSS2 and VSS3 of the AK4635 should be distributed separately from the ground of external controllers.
- All digital input pins except pull-down pin should not be left floating.
- In EXT mode (PMPLL bit = “0”), Rp and Cp of the VCOC pin can be open.
- In PLL mode (PMPLL bit = “1”), Rp and Cp of the VCOC pin should be connected as shown in
- When the AK4635 is used at master mode, FCK and BICK pins are floating before M/S bit is changed to “1”.
-When AVDD, DVDD and SVDD were distributed, DVDD = 1.6 ~ 3.6 V, SVDD = 2.2 ~ 4.0 V.
bit
0
0
0
0
0
0
1
1
Therefore, a pull-up resistor with around 100Ω should be connected to LRCK and BICK pins of the AK4635.
Analog Supply
DSP
µP
&
2.8∼3.6V
PLL2
bit
0
0
0
0
1
1
1
1
Others
75
Table 48. Setting of PLL Mode (*fs: Sampling Frequency, N/A: Not available)
PLL1
bit
0
0
1
1
1
1
0
0
10µ
Cs
Cv
+
+
PLL0
bit
0
1
0
1
0
1
0
1
Figure 64. Typical Connection Diagram
Clock Input Pin
PLL Reference
MCKI pin
MCKI pin
MCKI pin
MCKI pin
BICK pin
BICK pin
BICK pin
FCK pin
10
SDTO
N/A
VSAG
BICK
FCK
PDN
I2C
MCKO
DVDD
SDTI
CCLK
CSN
- 78 -
0.1µ
Top View
Input Frequency
VSS2
VOUT
MCKI
CDTI
SPN
VSS1
13.5MHz
12MHz
24MHz
27MHz
0.1µ
16fs
32fs
64fs
1fs
VCOM
VSS3
AOUT
SVDD
AVDD
MPI
0.1µ
VCOC
SPP
MICP
VIN
NC
MICN
Rp[Ω]
Rp and Cp of
6.8k
10k
10k
10k
10k
10k
10k
10k
VCOC pin
Rp
1k
1µ
1µ
1µ
0.1µ
Cp
Cp[F
220n
4.7n
4.7n
4.7n
4.7n
4.7n
10n
10n
220
]
R1
R2
Dynamic SPK
Piezo SPK
R1, R2: Short
ZD1, ZD2: Open
R1, R2: ≥10Ω
ZD1, ZD2: Required
ZD2
1k
Time (max)
PLL Lock
0.1µ
160ms
30ms
30ms
30ms
30ms
2ms
2ms
2ms
Speaker
Table
ZD1
20 k
[AK4635]
+
2007/10
48.
2.2µ
(default)