AKM AK4633 User manual

ASAHI KASEI [AK4633]
MS0447-E-03 2006/04
- 1 -
GENERAL DESCRIPTION
The AK4633 is a 16-bit mono CODEC with Microphone-Amplifier and Speaker-Amplifier. Input circuits
include a Microphone-Amplifier and an ALC (Automatic Level Control) circuit. Output circuits include a
Speaker-Amplifier and Mono Line Output. The AK4633 suits a moving picture of Digital Still Camera and
etc. This speaker-Amplifier supports a Piezo Speaker. The AK4633 is housed in a space-saving 24-pin
QFN package.
FEATURE
1. 16-Bit Delta-Sigma Mono CODEC
2. Recording Function
•1ch Mono Input
•1st MIC Amplifier: 0dB, 6dB, 10dB, 14dB, 17dB, 20dB, 26dB or 32dB
•2nd Amplifier with ALC: +36dB ∼-54dB, 0.375dB Step, Mute
•ADC Performance (MIC-Amp= +20dB): S/(N+D): 84dB, DR, S/N: 85dB
•Wind Noise Reduction
•Notch Filter
3. Playback Function
•Digital ALC (Automatic Level Control): +36dB ∼-54dB, 0.375dB Step, Mute
•Mono Line Output Performance: S/(N+D): 85dB, S/N: 93dB
•Mono Speaker-Amp
- Speaker-Amp Performance: S/(N+D): 60dB (150mW@ 8Ω)
Output Noise Level: -87dBV
-BTLOutput
-OutputPower:400mW@8
Ω
•Beep Input
4. Power Management
5. Flexible PLL Mode:
•Frequencies:
11.2896MHz, 12MHz, 12.288MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)
1fs (FCK pin)
16fs, 32fs or 64fs (BICK pin)
6. EXT Mode:
•Frequencies: 256fs, 512fs or 1024fs (MCKI pin)
7. Sampling Rate:
•PLL Slave Mode (FCK pin) : 7.35kHz ~ 48kHz
•PLL Slave Mode (BICK pin) : 7.35kHz ~ 48kHz
•PLL Slave Mode (MCKI pin):
8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
•PLL Master Mode:
8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
•EXT Slave Mode/EXT Master Mode:
7.35kHz~ 48kHz (256fs), 7.35kHz ~ 26kHz (512fs), 7.35kHz ~ 13kHz (1024fs)
8. Output Master Clock Frequency: 256fs
9. Serial µP Interface: 3-wire
10.Master / Slave Mode
AK4633
16-Bit ∆Σ Mono CODEC with ALC & MIC/SPK-AMP
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ASAHI KASEI [AK4633]
MS0447-E-03 2006/04
- 2 -
11.Audio Interface Format: MSB First, 2’s compliment
•ADC: DSP Mode, 16bit MSB justified, I2S
•DAC: DSP Mode, 16bit MSB justified, 16bit LSB justified, I2S
12.Ta = -40 ∼85°C
13.Power Supply
•AVDD: 2.2 ∼3.6V (typ. 3.3V)
•DVDD: 1.6 ∼3.6V (typ. 3.3V)
•SVDD: 2.2 ∼4.0V (typ. 3.3V)
14.Power Supply Current: 12mA (All Power ON)
15.Package: 24pin QFN(4mmx4mm)
Block Diagram
MIC Power
Supply
A/D HPF
PMMP
PMADC
Audio
I/F
D/A
PMDAC
Line Out
PMSPK
Speaker
PLL
PMBP
PMPLL
Control
Register
MPI
MIC/MICP
SPP
SPN
SVDD SVSS BEEP/MICN
AVDD
A
VSS VCOM DVDD
CSN
PDN
CCLK
CDTI
BICK
FCK
SDTO
SDTI
MCKO
MCKI
VCOC
PMAO
AOUT
DVSS
MIC-Amp
0dB /+6dB/+10dB/+14dB/+17dB
+20dB / +26dB / +32dB
Mic
HPF
2 Band
EQ
VOL
(ALC)
PMPFIL
Figure 1. AK4633 Block Diagram
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ASAHI KASEI [AK4633]
MS0447-E-03 2006/04
- 3 -
Ordering Guide
AK4633VN −40 ∼+85°C 24pin QFN (0.5mm pitch)
AKD4633 Evaluation board for AK4633
Pin Layout
SVSS
SVDD
A
OUT
BEEP/MICN
MPI
MIC/MICP
SPN SPP
MCKO
MCKI DVSS
DVDD
VCOM
A
VSS
AVDD VCOC PDN CSN
BICK
FCK
SDTO
SDTI
CDTI
CCLK
AK4633VN
Top View
19
20
21
22
23
24
18 17 16
1
12
11
10
9
8
7
15 14 13
2 3 4 5 6
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ASAHI KASEI [AK4633]
MS0447-E-03 2006/04
- 4 -
Interchange with AK4631
1. Function
Function AK4631 AK4633
AVDD 2.6V ∼3.6V 2.2V ∼3.6V
DVDD 2.6V ∼3.6V 1.6V ∼3.6V
SVDD 2.6V ∼5.25V 2.2V ∼4.0V
MIC Input Single-end Single-end / differential
MIC Power Output Voltage 0.75 x AVDD 0.8 x AVDD
MIC-Amp 0dB/+20dB/+26dB/+32dB 0dB/+6dB/+10dB/+14dB
+17dB/+20dB/+26dB/+32dB
HPF for Wind Noise Reduction No Yes
Notch Filter No Yes
ALC for Input Signal Analog ALC Digital ALC (Note 1)
Input Volume +27.5dB ∼-8dB, 0.5dB Step +36dB ∼-54dB, 0.375dB Step
(Note 1)
ALC for Output Signal Speaker-Amp block Digital Block (Note 1)
Output Volume +12dB ∼-115dB, 0.5dB Step +36dB ∼-54dB, 0.375dB Step
(Note 1)
Maximum Output for SPK-Amp
(using Piezo Speaker)
8.5Vpp@SVDD=5V 6.33Vpp@SVDD=3.8V
MCKI Pull-down Resistance Yes No (Delete MCKPD bit )
Package 28pin QFN 5.2mm x 5.2mm
41pin BGA 4.0mm x 4.0mm
24pin QFN 4.0mm x 4.0mm
Note 1. ALC and Volume circuits are shared by input and output. Therefore, it is impossible to use ALC and Volume
function at same time for both recording and playback mode.
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ASAHI KASEI [AK4633]
MS0447-E-03 2006/04
- 5 -
2. Register Map
(1) AK4631
Addr Register Name D7 D6 D5 D4 D3 D2 D1 D0
00H Power Management 1 0 PMVCM PMBP PMSPK PMAO PMDAC PMMIC PMADC
01H Power Management 2 0 0 0 0 M/S MCKPD MCKO PMPLL
02H Signal Select 1 SPPS BEEPS ALC2S DACA DACM MPWR MICAD MGAIN0
03H Signal Select 2 0 AOPSN MGAIN1 SPKG1 SPKG0 BEEPA ALC1M ALC1A
04H Mode Control 1 PLL3 PLL2 PLL1 PLL0 BCKO1 BCKO0 DIF1 DIF0
05H Mode Control 2 0 0 FS3 MSBS BCKP FS2 FS1 FS0
06H Timer Select DVTM ROTM ZTM1 ZTM0 WTM1 WTM0 LTM1 LTM0
07H ALC Mode Control 1 0 ALC2 ALC1 ZELM LMAT1 LMAT0 RATT LMTH
08H ALC Mode Control 2 0 REF6 REF5 REF4 REF3 REF2 REF1 REF0
09H Input PGA Control 0 IPGA6 IPGA5 IPGA4 IPGA3 IPGA2 IPGA1 IPGA0
0AH Digital Volume Control OVOL7 OVOL6 OVOL5 OVOL4 OVOL3 OVOL2 OVOL1 OVOL0
0BH ALC2 Mode Control 0 0 RFS5 RFS4 RFS3 RFS2 RFS1 RFS0
(2) AK4633
Addr Register Name D7 D6 D5 D4 D3 D2 D1 D0
00H Power Management 1 PMPFIL PMVCM PMBP PMSPK PMAO PMDAC 0 PMADC
01H Power Management 2 0 0 0 0 M/S 0 MCKO PMPLL
02H Signal Select 1 SPPSN BEEPS DACS DACA 0 PMMP MGAIN2 MGAIN0
03H Signal Select 2 PFSDO AOPS MGAIN1 SPKG1 SPKG0 BEEPA PFDAC ADCPF
04H Mode Control 1 PLL3 PLL2 PLL1 PLL0 BCKO1 BCKO0 DIF1 DIF0
05H Mode Control 2 ADRST FCKO FS3 MSBS BCKP FS2 FS1 FS0
06H Timer Select 0 0 ZTM1 ZTM0 WTM1 WTM0 RFST1 RFST0
07H ALC Mode Control 1 0 ALC2 ALC1 ZELMN LMAT1 LMAT0 RGAIN0 LMTH0
08H ALC Mode Control 2 IREF7 IREF6 IREF5 IREF4 IREF3 IREF2 IREF1 IREF0
09H Digital Volume Control IVOL7 IVOL6 IVOL5 IVOL4 IVOL3 IVOL2 IVOL1 IVOL0
0AH Digital Volume Control OVOL7 OVOL6 OVOL5 OVOL4 OVOL3 OVOL2 OVOL1 OVOL0
0BH ALC Mode Control 3 RGAIN1 LMTH1 OREF5 OREF4 OREF3 OREF2 OREF1 OREF0
0DH ALC LEVEL VOL7 VOL6 VOL5 VOL4 VOL3 VOL2 VOL1 VOL0
0EH Signal Select 3 DATT1 DATT0 SMUTE MDIF EQ2 EQ1 HPF HPFAD
10H - 1FH Digital Filter Setting
hatching Register bits changed from the AK4631.
Bold Register bits added from the AK4631.
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ASAHI KASEI [AK4633]
MS0447-E-03 2006/04
- 6 -
3. Register Setting
(1) When PLL reference clock is input from FCK or BICK pin, the setting of FS3-0 bits is changed as shown in the
following table.
Mode FS3 bit FS2 bit FS1 bit FS0 bit Sampling Frequency
Range
0 0 0 Don’t care Don’t care 7.35kHz ≤fs ≤12kHz
1 0 1 Don’t care Don’t care 12kHz < fs ≤24kHz
2 1 0 Don’t care Don’t care 24kHz < fs ≤48kHz
Others Others N/A
ALL of modes are changed from AK4631.
(2) In EXT Slave Mode, the setting of FS3-0 bits is changed as shown in the following table.
.
Mode FS3-2 bits FS1 bit FS0 bit MCKI Input
Frequency
Sampling Frequency
Range
0 Don’t care 0 0 256fs
7.35kHz ≤fs ≤48kHz
1 Don’t care 0 1 1024fs
7.35kHz < fs ≤13kHz
2 Don’t care 1 0 512s 7.35kHz < fs ≤26kHz
3 Don’t care 1 1 256fs 7.35kHz ≤fs ≤48kHz
Hatching parts are the setting changed from AK4631.
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ASAHI KASEI [AK4633]
MS0447-E-03 2006/04
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PIN / FUNCTION
No. Pin Name I/O Function
1 VCOM O Common Voltage Output Pin, 0.45 x AVDD
Bias voltage of ADC inputs and DAC outputs.
2 AVSS - Analog Ground Pin
3 AVDD - Analog Power Supply Pin
4 VCOC O
Output Pin for Loop Filter of PLL Circuit
This pin should be connected to AVSS with one resistor and capacitor in series.
5 PDN I
Power-Down Mode Pin
“H”: Power up, “L”: Power down reset and initialize the control register.
AK4633 should always be reset upon power-up.
6 CSN I Chip Select Pin
7 CCLK I Control Data Clock Pin
8 CDTI I/O Control Data Input Pin / Output pin
9 SDTI I Audio Serial Data Input Pin
10 SDTO O Audio Serial Data Output Pin
11 FCK I/O Frame Clock Pin
12 BICK I/O Audio Serial Data Clock Pin
13 DVDD - Digital Power Supply Pin
14 DVSS - Digital Ground Pin
15 MCKI I External Master Clock Input Pin
16 MCKO O Master Clock Output Pin
17 SPP O Speaker Amp Positive Output Pin
18 SPN O Speaker Amp Negative Output Pin
19 SVSS - Speaker Amp Ground Pin
20 SVDD - Speaker Amp Power Supply Pin
21 AOUT O Mono Line Output Pin
22 BEEP I Beep Signal Input Pin (MDIF bit = “0”)
MICN I Microphone Negative Input Pin for Differential Input (MDIF bit = “1”)
23 MPI O MIC Power Supply Pin for Microphone
24 MIC I Microphone Input Pin for Single Ended input (MDIF bit = “0”)
MICP I Microphone Positive Input Pin for Differential Input (MDIF bit = “1”)
Note: All input pins except analog input pins (MIC/MICP and BEEP/MICN pins) should not be left floating.
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ASAHI KASEI [AK4633]
MS0447-E-03 2006/04
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Handling of Unused Pin
The unused I/O pins should be processed appropriately as below.
Classification Pin Name Setting
Analog MIC/MICP, BEEP/MICN, MPI, AOUT,
SPP, SPN, VCOC
These pins should be open.
MCKI, SDTI These pins should be connected to DVSS.
FCK, BICK (Note) These pins should be connected to DVSS, or should
be pulled-down/pulled-up by about 100kΩresister .
Digital
MCKO, SDTO These pins should be open.
(Note) When the AK4633 is used by the slave mode (M/Sbit=“0”), these pins should be connected to DVSS. When the
AK4633 is used by the master mode (M/Sbit=“1”), these pins should be pulled-down or pulled-up by about 100kΩ
resistor.
ABSOLUATE MAXIMUM RATING
(AVSS, DVSS, SVSS=0V; Note 2)
Parameter Symbol min max Units
Power Supplies:
Analog
Digital
Speaker-Amp
|AVSS – DVSS| (Note 3)
|AVSS – SVSS| (Note 3)
AVDD
DVDD
SVDD
∆GND1
∆GND2
−0.3
−0.3
−0.3
-
-
4.6
4.6
4.6
0.3
0.3
V
V
V
V
V
Input Current, Any Pin Except Supplies IIN - ±10 mA
Analog Input Voltage (Note 5) VINA −0.3 AVDD+0.3 V
Digital Input Voltage (Note 6) VIND −0.3 DVDD+0.3 V
Ambient Temperature (powered applied) Ta −40 85
°C
Storage Temperature Tstg −65 150
°C
Maximum Power Dissipation (Note 4) Pd - 650 mW
Note 2. All voltages with respect to ground.
Note 3. AVSS, DVSS and SVSS must be connected to the same analog ground plane.
Note 4. In case that PCB wiring density is 100%. This power is the AK4633 internal dissipation that does not include
power of externally connected speaker.
Note 5. BEEP/MICN, MIC/MICP pins
Note 6. PDN, CSN, CCLK, CDTI, SDTI, FCK, BICK, MCKI pins
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
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ASAHI KASEI [AK4633]
MS0447-E-03 2006/04
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RECOMMENDED OPERATING CONDITIONS
(AVSS, DVSS, SVSS=0V; Note 2)
Parameter Symbol min typ max Units
Power Supplies
(Note 7)
Analog
Digital
Speaker-Amp
Difference
AVDD
DVDD
SVDD
DVDD - AVDD
DVDD - SVDD
2.2
1.6
2.2
-
-
3.3
3.3
3.3
-
-
3.6
3.6
4.0
0.3
0.3
V
V
V
V
V
Note 2. All voltages with respect to ground.
Note 7. The power up sequence between AVDD, DVDD and SVDD is not critical. It is not permit to power DVDD off
only when AVDD or SVDD is powered up. When the power supplies except DVDD are partially powered OFF,
the AK4633 must be reset by bringing PDN pin “L”after these power supplies are powered ON again. If AVDD is
powered off when DVDD is powered up, the PMADC bit should be set to “0”before AVDD is powered off.
* AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
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ASAHI KASEI [AK4633]
MS0447-E-03 2006/04
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ANALOG CHRACTERISTICS
(Ta=25°C; AVDD, DVDD, SVDD=3.3V; AVSS=DVSS=SVSS=0V; fs=8kHz, BICK=64fs; Signal Frequency=1kHz;
16bit Data; Measurement frequency=20Hz ∼3.4kHz; EXT Slave Mode; unless otherwise specified)
Parameter min typ max Units
MIC Amplifier : MDIF bit = “0”; (Single-ended input)
Input Resistance 20 30 40 kΩ
Gain (MGAIN2-0 bits = “000”) - 0 - dB
(MGAIN2-0 bits = “001”) - 20 - dB
(MGAIN2-0 bits = “010”) - 26 - dB
(MGAIN2-0 bits = “011”) - 32 - dB
(MGAIN2-0 bits = “100”) - 6 - dB
(MGAIN2-0 bits = “101”) - 10 - dB
(MGAIN2-0 bits = “110”) - 14 - dB
(MGAIN2-0 bits = “111”) - 17 - dB
MIC Amplifier : MDIF bit = “1”; (Full-differential input)
Input Voltage (MGAIN2-0 bits = “001”) - - 0.228 Vpp
(Note 8) (MGAIN2-0 bits = “010”) - - 0.114 Vpp
(MGAIN2-0 bits = “011”) - - 0.057 Vpp
(MGAIN2-0 bits = “100”) - - 1.14 Vpp
(MGAIN2-0 bits = “101”) - - 0.721 Vpp
(MGAIN2-0 bits = “110”) - - 0.455 Vpp
(MGAIN2-0 bits = “111”) - - 0.322 Vpp
MIC Power Supply: MPI pin
Output Voltage (Note 9) 2.38 2.64 2.90 V
Load Resistance 2 - - kΩ
Load Capacitance - - 30 pF
ADC Analog Input Characteristics: MIC ÆADC, MIC Gain=20dB, IVOL=0dB, ALC1bit = “0”
Resolution - - 16 Bits
Input Voltage (MIC Gain=20dB,Note 10) 0.168 0.198 0.228 Vpp
S/(N+D) (−1dBFS) (Note 11) 72 84 - dB
D-Range (−60dBFS) 75 85 - dB
S/N 75 85 - dB
DAC Characteristics:
Resolution 16 Bits
Mono Line Output Characteristics: AOUT pin, DAC →AOUT, RL=10kΩ
Output Voltage (Note 12) 1.78 1.98 2.18 Vpp
S/(N+D) (0dBFS) (Note 11) 73 85 - dB
D-Range (-60dBFS) 83 93 - dB
S/N 83 93 - dB
Load Resistance 10 - -
kΩ
Load Capacitance - - 30 pF
Speaker-Amp Characteristics: DAC ÆSPP/SPN pins, ALC2 bit = “0”, RL=8Ω, BTL, SVDD=3.3V
SPKG1-0 bits = “00”(-4.1dBFS) 2.54 3.17 3.80 Vpp
Output Voltage SPKG1-0 bits = “01”(-4.1dBFS) 3.20 4.00 4.80 Vpp
S/(N+D) As 150mW output power 40 60 - dB
As 400mW output power - 20 - dB
Output Noise SPKG1-0 bits = “00”- -87 - dBV
Level SPKG1-0 bits = “01”-75 -85 - dBV
SPKG1-0 bits = “10”- -83 - dBV
Load Resistance 8 - - Ω
Load Capacitance - - 30 pF
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