OKI ML2612GD User Manual
ML2612 FAMILY DATASHEET
ML2612 FAMILY DATASHEET
(DIGEST)
Version 3
Revised on 31-Oct-07
Version: 3
1
ML2612 FAMILY DATASHEET
Contents
Contents...................................................................................................................................................................................................2
General Description.................................................................................................................................................................................3
Features ...................................................................................................................................................................................................3
Block Diagram ........................................................................................................................................................................................5
Application Example ...............................................................................................................................................................................6
Pin Layout ...............................................................................................................................................................................................8
Pin Description......................................................................................................................................................................................10
Absolute Maximum Ratings..................................................................................................................................................................12
Recommended Operating Condition .....................................................................................................................................................12
Electrical Characteristics.......................................................................................................................................................................13
DC Characteristics ............................................................................................................................................................................13
Power Consumption..........................................................................................................................................................................14
AC Characteristics ............................................................................................................................................................................15
Clock......................................................................................................................................................................... 15
Reset .........................................................................................................................................................................15
2 wire serial interface................................................................................................................................................ 16
3 wire serial interface................................................................................................................................................ 17
SAI (Slave) ............................................................................................................................................................... 18
SAI (Master)............................................................................................................................................................. 19
Digital Microphone Interface.................................................................................................................................... 20
Power Supply Sequence....................................................................................................................................................................21
Analog Characteristics ......................................................................................................................................................................23
Digital Filter Characteristics .............................................................................................................................................................25
Revision history....................................................................................................................................................................................26
Version: 3
2
ML2612 FAMILY DATASHEET
General Description
The ML2612 family is a low power small size monaural CODEC with in-built speaker amplifier, ideally suited for
portable playback and recording applications. The microphone interface (1bit digital) supports MEMS (silicon) digital
microphones for low noise recording systems. For digital signal processing, the ML2612 uses high-pass filters and a
5-band programmable equalizer including 5 channel notch filter to enable flexible sound processing.
Features
1) CPU Interface
2 modes support
1-1) 2 wire serial interface
1-2) 3 wire serial interface
2) Serial Audio Interface (SAI)
- Sampling frequency: 8k, 11.025k, 12k, 16k, 22.05k, 24k, 32k, 44.1k, 48k Hz
-Master/Slave selectable
- SAI_LRCLK transfer mode/Frame sync. Transfer mode selectable
- Channel data length: 16bit
- SAI_LRCLK positive/negative selectable
- 1bit delay/Left Justified selectable
- MSB first/LSB first selectable
- SAI_BCLK frequency
Master mode: 32fs/64fs selectable
Slave mode : ～128fs
3) Digital Signal Processing
- High pass filter for wind noise reduction
- 5 band programmable equalizer(5 channel programmable notch filter)
4) Microphone input
- Programmable gain amplifier: -12～+35.25dB( 0.75dB/step )
- Gain boost amplifier: 0dB、+9.75dB、+19.5dB、+29.25dB
- ALC Function
- MEMS (silicon) microphone digital interface
5) ADC、DAC
- 16bit Compact ADC、DAC
6) Speaker amplifier
- BTL Speaker amplifier
- Can be use as line output- Lin input 1 channel mixing capability
- Pop noise reduction function
7) Clock
- 11.2896～54MHz
- 256fs / 512fs / 1024fs
8) Power supply voltage
- LVDD : 1.65～2.75V
- HVDD: 2.7～3.6V
9) Package
Size: 4.0mm×4.0mm 0.5mm pitch 24pin QFN
2.0mm×2.5mm 0.5mm pitch 20pin WCSP
Version: 3
3
10) Product Line up
Part # Package CPU I/F MIC I/F
ML2612GD QFN 2 / 3-wire
ML2614HB WCSP 3-wire Analog MIC I/F
ML2616HB WCSP 3-wire Digital MIC I/F
selectable
ML2612 FAMILY DATASHEET
Analog/Digital
selectable
Version: 3
4
Block Diagram
LVDD
VMID
LGND
MDSCLKO(2612/6)
MDIN(2612/6)
MIN+(ML2612/4)
MIN-(ML2612/4)
MICBIAS
LIN
HVDD
SPOUT+
SPOUT-
HGND
BIAS
PGA
Digital
Mic I/F
+
ADC
DAC
SEL
ML2612 FAMILY DATASHEET
IFSEL(2612)
S3_SCLK/S2_SCLK
S3_SDATA/S2_SDATA
S3_CSB/MCLKO
SAI_SDOUT
SAI_SDIN
SAI_BCLK
SAI_LRCLK
RESETB(2612)
ALC
Prg
Filter
/
EQ
CPU
I/F
.
Audio
I/F
PLL
MCLKI
PLLC
Version: 3
5
Application Example
open
ML2612
MDSCLKO
MDIN
LVDD
LGND
ML2612 FAMILY DATASHEET
MICBIAS
SAI_LRCLK
SAI_BCLK
MINMIN+
VMID
SAI_SDOUT
SAI_SDIN
S2_SDATA
CPU
DSP
S2_SCLK
MCLKO
SPOUT+
IFSEL
LIN Line In
(2-wire Select）
SPOUT-
RESETB
Line Out
HVDD
MCLKI
PLLC
HGND
Version: 3
6
●Application example for MEMS microphone with SDM
LVDD
LGND
SAI_LRCLK
SAI_BCLK
SAI_SDOUT
SAI_SDIN
S3_SDATA
S3_SCLK
S3_CSB
IFSEL
LIN
RESETB
MCLKI
PLLC
MEMS-MIC
with SDM
open
open
Line Out
ML2612
MDSCLKO
MDIN
MICBIAS
MIN+
MIN-
VMID
SPOUT+
SPOUT-
HVDD
HGND
ML2612 FAMILY DATASHEET
CPU
DSP
）
Line In
Version: 3
7
Pin Layout
ML2612GD (24Pin QFN)
Top View
ML2612 FAMILY DATASHEET
SAI_SDIN
S3_SDATA/S2_SDATA
LVDD
LGND
MDSCLKO
MIN+
SAI_SDOUT
S3_SCLK/S2_SCLK
IFSEL
RESETB
SAI_LRCLK
18 17 16 15 14 13
19
20
21
22
23
24
1 2 3 4 5 6
SAI_BCLK
MCLKI
12
S3_CSB/MCLKO
11
PLLC
10
MICBIAS
9
SPOUT-
8
SPOUT+
7
MIN-
VMID
LIN
HVDD
MDIN
HGND
Version: 3
8
ML2614HB (20Pin WCSP)
Bottom View
ML2612 FAMILY DATASHEET
SAI_SDIN S3_SCLK SAI_LRCLK MCLKI
S3_SDATA SAI_SDOUT SAI_BCLK PLLC
LVDD LIN S3_CSB MICBIAS
LGND MIN- HGND SPOUT-
MIN+ VMID HVDD SPOUT+
D C B A
ML2616HB (20Pin WCSP)
Bottom View
SAI_SDIN S3_SCLK SAI_LRCLK MCLKI
S3_SDATA SAI_SDOUT SAI_BCLK PLLC
LVDD LIN S3_CSB MICBIAS
LGND MDIN HGND SPOUT-
MDSCLKO VMID HVDD SPOUT+
5
4
3
2
1
5
4
3
2
1
D C B A
Version: 3
9
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