AK5702VN AKM [Asahi Kasei Microsystems], AK5702VN Datasheet - Page 68

• Manufacturer Part Number: AK5702VN
• Description: 4-Channel ADC with PLL & MIC-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

MS0623-E-00
Power Supply
PMVCM bit
(Addr:00H, D2)
(Addr:06H, D2)
(Addr:01H, D0)
PMPLL bit
MCKO pin
3. PLL Slave Mode (MCKI pin)
<Example>
MCKO bit
BCLK pin
LRCK pin
MCKI pin
PDN pin
(1) After Power Up: PDN pin “L” → “H”
(2) DIF1-0, PLL3-0, FS3-0, BCKO1-0 and M/S bits should be set during this period.
(3) Power Up VCOM: PMVCM bit = “0” → “1”
(6) The normal clock is output from MCKO after PLL is locked.
(7) The invalid frequency is output from MCKO during this period.
(8) BCLK and LRCK clocks should be synchronized with MCKO clock.
(4) Enable MCKO output: MCKO bit = “1”
(5) PLL starts after that the PMPLL bit changes from “0” to “1” and PLL reference clock (MCKI pin) is supplied.
“L” time of 150ns or more is needed to reset the AK5702.
VCOM should first be powered up before the other block operates.
PLL lock time is 40ms(max) at MCKI=12MHz (Table 4).
(1)
(2)
(3)
(4)
(5)
40msec(max)
Figure 61. Clock Set Up Sequence (3)
(7)
Input
(6)
(8)
- 68 -
Output
Input
Example:
(1) Power Supply & PDN pin = “L”
BCLK frequency at Master Mode: 64fs
Input Master Clock Select at PLL Mode: 11.2896MHz
Audio I/F Format: I2S
MCKO: Enable
Sampling Frequency: 44.1kHz
BCLK and LRCK input start
(2)Addr:01H, Data:10H
(3)Addr:00H, Data:04H
(4)Addr:06H, Data:04H
MCKO output start
Addr:04H, Data:23H
Addr:05H, Data:2FH
Addr:01H, Data:11H
[AK5702]
“H”
2007/06