AKM AKD4671-B Stereo codec with built-in microphone-amplifier Datasheet

[AKD4671-B]
AKD4671-B
Evaluation board Rev.0 for AK4671
GENERAL DESCRIPTION
AKD4671 is an evaluation board for the AK4671, stereo CODEC with built-in Microphone-Amplifier,
Receiver-Amplifier and Headphone-Amplifier.
The AKD4671 can evaluate A/D converter and D/A converter separately in addition to loopback mode
(A/D → D/A). The AKD4671-B also has the digital audio interface and can achieve the interface with
digital audio systems via opt-connector.
„ Ordering guide
AKD4671
---
Evaluation board for AK4671
(Cable for connecting with printer port of IBM-AT,compatible PC and control
software are packed with this. This control software does not support Windows NT.)
FUNCTION
• DIT/DIR with optical input/output
• 10pin Header for Digital Audio I/F, PCM I/F (Baseband, Bluetooth)
• BNC connector for an external clock input
• 10pin Header for serial control mode
REG
TVDD3
TVDD2
DVDD
PVDD SAVDD
AVDD
3.3 V
Opt Out TX
Opt In
RX
REG
AK4114
DIR
DIT
MIC
Jack
Digital Audio I/F
10Pin Header
Control I/F
10Pin Header
LIN1/RIN1
LIN2/3/4
RIN2/3/4
AK4671
SAIN1/2/3
SAIN3
LOUT1/2/3
Control I/F
SAR ADC
10Pin Header
Baseband I/F
10Pin Header
ROUT1/2/3
VSS2
VSS1
HP
Jack
VSS4
VSS3
4212
HP
Bluetooth I/F
10Pin Header
GND
AK4212
SPK_L
Jack
SPK_R
Jack
Figure 1. AKD4671-B Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual
<KM089000>
2007 / 05
-1-
[AKD4671-B]
Evaluation Board Manual
„ Operation sequence
1) Set up the power supply lines.
(1-1) In case of using the regulator.
Set up the jumper pins.
JP
JP18
SVDD
SEL
JP20
AVDD
SEL
JP22
SAVDD
SEL
JP24
PVDD
SEL
JP26
DVDD
SEL
JP27
TVDD2
SEL
JP29
TVDD3
SEL
JP31
VCC
SEL
JP7
VCC2
SEL
State
Short
Short
Short
Short
Short
Short
Short
Short
Short
Set up the power supply lines.
[REG] (red)
[D3V] (orange)
[AGND] (black)
[DGND] (black)
= 5.0V
= 2.7 ∼ 3.6V
= 0V
= 0V
: for regulator (3.3V output : AK4671 , Logic)
: for AK4114 and logic (typ. 3.3V)
: for analog ground
: for logic ground
(1-2) In case of using the power supply connectors.
Set up the jumper pins.
JP
JP18
SVDD
SEL
JP20
AVDD
SEL
JP22
SAVDD
SEL
JP24
PVDD
SEL
JP26
DVDD
SEL
JP27
TVDD2
SEL
JP29
TVDD3
SEL
JP31
VCC
SEL
JP7
VCC2
SEL
State
Open
Open
Open
Open
Open
Open
Open
Open
Open
Set up the power supply lines.
[SVDD] (orange)
[AVDD] (orange)
[SAVDD] (orange)
[PVDD] (orange)
[DVDD] (orange)
[TVDD2] (orange)
[TVDD3] (orange)
[VCC] (orange)
[VCC2] (orange)
[D3V] (orange)
[AGND] (black)
[DGND] (black)
= 3.0 ~ 5.5V
= 2.2 ~ 3.6V
= 2.2 ~ 3.6V
= 2.2 ∼ 3.6V
= 1.6 ∼ 3.6V
= 1.6 ∼ 3.6V
= 1.6 ∼ 3.6V
= 1.6 ∼ 3.6V
= 1.6 ∼ 3.6V
= 2.7 ∼ 3.6V
= 0V
= 0V
: for SVDD of AK4212 (typ. 3.6V)
: for AVDD of AK4671 (typ. 3.3V)
: for SAVDD of AK4671 (typ. 3.3V)
: for PVDD of AK4671 (typ. 3.3V)
: for DVDD of AK4671 (typ. 3.3V)
: for TVDD2 of AK4671 (typ. 3.3V)
: for TVDD3 of AK4671 (typ. 3.3V)
: for logic (typ. 3.3V : the voltage same as DVDD)
: for logic (typ. 3.3V : the voltage same as TVDD2 and TVDD3)
: for AK4114 and logic (typ. 3.3V)
: for analog ground
: for logic ground
* Each supply line should be distributed from the power supply unit.
2) Set up the evaluation mode, jumper pins and DIP switches. (See the followings.)
3) Power on.
The AK4671 and AK4114 should be reset once bringing SW1 (DIR) and SW2 (PDN) “L” upon power-up.
<KM089000>
2007 / 05
-2-
[AKD4671-B]
„ Evaluation mode
1. Audio I/F evaluation mode
In case of AK4671 evaluation using AK4114, it is necessary to correspond to audio interface format for
AK4671 and AK4114. About AK4671’s audio interface format, refer to datasheet of AK4671. About
AK4114’s audio interface format, refer to Table 2 on page 19.
The AK4114 operates at fs of 32kHz or more. If the fs is slower than 32kHz, please use other mode.
In addition, MCLK of AK4114 supports 256fs and 512fs. When evaluate it in a condition except this, please
use other modes
(1) External Slave Mode
(1-1) Evaluation of A/D using DIT of AK4114
(1-2) Evaluation of D/A using DIR of AK4114
(1-3) Evaluation of Loop-back using AK4114 <default>
(1-4) Evaluation of Loop-back that master clock is fed externally, BICK and LRCK are divided with a
board
(1-5) All interface signals including master clock are fed externally
(2) External Master Mode
(2-1) Evaluation of A/D using DIT of AK4114
(2-2) Evaluation of D/A using DIR of AK4114
(2-3) Evaluation of Loop-back using AK4114
(2-4) All interface signals including master clock are fed externally
(3) PLL Slave Mode
(3-1) PLL Reference Clock : MCKI pin
(3-1-1) Evaluation of A/D using DIT of AK4114
(3-1-2) Evaluation of Loop-back using AK4114
(3-1-3) All interface signals including master clock are fed externally
(3-2) PLL Reference Clock : BICK or LRCK pin
(3-2-1) Evaluation of A/D using DIT of AK4114
(3-2-2) Evaluation of D/A using DIR of AK4114
(3-2-3) Evaluation of Loop-back using AK4114
(3-2-4) All interface signals including master clock are fed externally
(4) PLL Master Mode
(4-1) Evaluation of A/D using DIT of AK4114
(4-2) Evaluation of Loop-back
(4-3) All interface signals including master clock are fed externally
<KM089000>
2007 / 05
-3-
[AKD4671-B]
(1) External Slave Mode
When PMPLL bit is “0”, the AK4671 becomes EXT mode. Master clock is input from MCKI pin, the internal PLL
circuit is not operated. This mode is compatible with I/F of the normal audio CODEC. The clocks required to
operate are MCKI (256fs, 384fs, 512fs, 768fs or 1024fs), LRCK (fs) and BICK (≥32fs). The master clock (MCKI)
should be synchronized with LRCK. The phase between these clocks does not matter. The input frequency of MCKI
is selected by FS1-0 bits.
AK4671
DSP or μP
MCKO
MCKI
256fs, 384fs, 512fs,
768fs or 1024fs
≥ 32fs
BICK
BCLK
1fs
LRCK
MCLK
LRCK
SDTO
SDTI
SDTI
SDTO
(1-1) Evaluation of A/D using DIT of AK4114
X2 (X’tal) and PORT2 (DIT) are used. Nothing should be connected to PORT1 (DIR) and PORT4 (DSP).
The jumper pins should be set as the following.
JP36
MCLK
JP33
BICK_SEL
JP38
LRCK_SEL
DIR
DIR
JP35
PHASE
JP46
4114_MCKI
JP48
M/S
DIR
EXT
4040
4040
THR
Master
INV
Slave
(1-2) Evaluation of D/A using DIR of AK4114
PORT1 (DIR) is used. Nothing should be connected to PORT2 (DIT) and PORT4 (DSP).
The jumper pins should be set as the following.
JP36
MCLK
JP33
BICK_SEL
JP38
LRCK_SEL
JP51
SDTI_SEL
JP35
PHASE
JP48
M/S
DIR
EXT
DIR
4040
DIR
4040
DIR
<KM089000>
ADC
THR
INV
Master
Slave
2007 / 05
-4-
[AKD4671-B]
(1-3) Evaluation of Loop-back using AK4114 <default>
X2 (X’tal) is used. Nothing should be connected to PORT1 (DIR), PORT2 (DIT) and PORT4 (DSP).
The jumper pins should be set as the following.
JP33
BICK_SEL
JP36
MCLK
JP38
LRCK_SEL
JP51
SDTI_SEL
JP48
M/S
JP46
4114_MCKI
JP35
PHASE
DIR
EXT
DIR
4040
DIR
4040
DIR
ADC
THR
Master
INV
Slave
(1-4) Evaluation of Loop-back where master clock is fed externally, BICK and LRCK are generated by
on-board divider.
J12 (EXT) is used . MCLK is supplied from J12 (EXT). BICK and LRCK are generated by 74HC4040 on
AKD4671-B.
Nothing should be connected to PORT1 (DIR), PORT2 (DIT) and PORT4 (DSP).
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP51
SDTI_SEL
JP48
M/S
DIR
EXT
DIR
4040
DIR
4040
DIR
ADC Master
Slave
When a termination (51Ω) is unnecessary, please set JP39 (EXT) open.
JP32 (MKFS), JP34 (BCFS), and JP37 (LRCK) should be set according to the frequency of MCLK, BICK and
LRCK.
Follows are setting examples in MCLK=256fs , BICK=64fs and LRCK=1fs.
When MCLK=384fs or 768fs, JP32, JP34, and JP37 should be set to “384” side.
.
JP34
BCFS
JP32
MKFS
64fs-384
32fs-384
64fs
32fs
256fs
512fs
1024fs
384/768fs
JP37
LRCK
fs-384
fs
MCKO
(1-5) All interface signals including master clock are fed externally
PORT4 (DSP) is used. Nothing should be connected to PORT1 (DIR) and PORT2 (DIT).
The jumper pins should be set as the following.
JP36
MCLK
JP33
BICK_SEL
JP38
LRCK_SEL
JP51
SDTI_SEL
JP48
M/S
DIR
EXT
DIR
4040
DIR
4040
DIR
<KM089000>
ADC Maste
Slave
2007 / 05
-5-
[AKD4671-B]
(2) External Master Mode
The AK4671 becomes EXT Master Mode by setting PMPLL bit = “0” and M/S bit = “1”. Master clock can be input
via MCKI pin, without using on-chip PLL circuit. The clock required to operate is MCKI (256fs, 384fs, 512fs,
768fs or 1024fs). The input frequency of MCKI is selected by FS1-0 bits.
AK4671
DSP or μP
MCKO
MCKI
256fs, 384fs, 512fs,
768fs or 1024fs
32fs or 64fs
BICK
BCLK
1fs
LRCK
MCLK
LRCK
SDTO
SDTI
SDTI
SDTO
(2-1) Evaluation of A/D using DIT of AK4114
X2 (X’tal) and PORT2 (DIT) are used. Nothing should be connected to PORT1 (DIR) and PORT4 (DSP).
In Master Mode, BICK and LRCK of AK4671 should be input to AK4114. Please refer to Table 2 on page 19.
The jumper pins should be set as the following.
JP36
MCLK
JP33
BICK_SEL
JP38
LRCK_SEL
DIR
DIR
JP35
PHASE
JP46
4114_MCKI
JP48
M/S
DIR
EXT
4040
4040
THR
Master
INV
Slave
(2-2) Evaluation of D/A using DIR of AK4114
PORT1 (DIR) is used. Nothing should be connected to PORT2 (DIT) and PORT4 (DSP).
In Master Mode, BICK and LRCK of AK4671 should be input to AK4114. Please refer to Table 2 on page 19.
The jumper pins should be set as the following.
JP36
MCLK
JP33
BICK_SEL
JP38
LRCK_SEL
JP51
SDTI_SEL
JP35
PHASE
JP48
M/S
DIR
EXT
DIR
4040
DIR
4040
DIR
ADC
<KM089000>
THR
INV Master
Slave
2007 / 05
-6-
[AKD4671-B]
(2-3) Evaluation of Loop-back using AK4114
X’tal (X2) is used. Nothing should be connected to PORT1 (DIR), PORT2 (DIT) and PORT4 (DSP).
The jumper pins should be set as the following.
JP36
MCLK
JP33
BICK_SEL
JP38
LRCK_SEL
JP51
SDTI_SEL
JP35
PHASE
DIR
EXT
DIR
4040
DIR
4040
DIR
ADC
THR
INV
(2-4) All interface signals including master clock are fed externally
PORT4 (DSP) is used. Nothing should be connected to PORT1 (DIR) and PORT2 (DIT).
The jumper pins should be set as the following.
JP36
MCLK
JP33
BICK_SEL
JP38
LRCK_SEL
JP51
SDTI_SEL
JP48
M/S
DIR
EXT
DIR
4040
DIR
4040
DIR
<KM089000>
ADC Master
Slave
2007 / 05
-7-
[AKD4671-B]
(3) PLL Slave Mode
A reference clock of PLL is selected among the input clocks to MCKI, BICK or LRCK pin. The required clock to
the AK4671 is generated by an internal PLL circuit. Input frequency is selected by PLL3-0 bits.
BICK and LRCK inputs should be synchronized with MCKO output. The phase between MCKO and LRCK dose
not matter. MCKO pin outputs the frequency selected by PS1-0 bits and the output is enabled by MCKO bit.
Sampling frequency can be selected by FS3-0 bits.
(3-1) PLL Reference Clock : MCKI pin
11.2896MHz, 12MHz, 12.288MHz, 13MHz,
13.5MHz, 19.2MHz, 24MHz, 26MHz,
27MHz
AK4671
DSP or μP
MCKI
MCKO
256fs/128fs/64fs/32fs
≥ 32fs
BICK
1fs
LRCK
MCLK
BCLK
LRCK
SDTO
SDTI
SDTI
SDTO
(3-1-1) Evaluation of A/D using DIT of AK4114
J12 (EXT) and PORT2 (DIT) are used. Nothing should be connected to PORT1 (DIR) and PORT4 (DSP).
X’tal oscillator should be removed from X2.
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP46
4114_MCKI
JP35
PHASE
JP7
MCKO
DIR
EXT
DIR
4040
DIR
4040
THR
INV
JP48
M/S
Master
Slave
When a termination (51Ω) is unnecessary, please set JP39 (EXT) to open.
<KM089000>
2007 / 05
-8-
[AKD4671-B]
(3-1-2) Evaluation of Loop-back using AK4114
J12 (EXT) is used. Nothing should be connected to PORT1 (DIR), PORT2 (DIT) and PORT4 (DSP).
X’tal oscillator should be removed from X2.
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP46
4114_MCKI
JP35
PHASE
JP51
SDTI_SEL
DIR
EXT
DIR
4040
DIR
THR
4040
INV
DIR
ADC
JP48
M/S
JP7
MCKO
Master
Slave
When a termination (51Ω) is unnecessary, please set JP39 (EXT) open.
(3-1-3) All interface signals including master clock are fed externally
PORT4 (DSP) is used. Nothing should be connected to PORT1 (DIR) and PORT2 (DIT).
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP46
4114_MCKI
JP35
PHASE
JP51
SDTI_SEL
DIR
EXT
DIR
4040
DIR
4040
THR
INV
DIR
ADC
JP48
M/S
Master
Slave
<KM089000>
2007 / 05
-9-
[AKD4671-B]
(3-2) PLL Reference Clock : BICK or LRCK pin
AK4671
DSP or μP
MCKO
MCKI
32fs or 64fs
BICK
1fs
LRCK
BCLK
LRCK
SDTO
SDTI
SDTI
SDTO
(PLL Reference Clock: BICK pin)
AK4671
DSP or μP
MCKO
MCKI
≥ 32fs
BICK
1fs
LRCK
BCLK
LRCK
SDTO
SDTI
SDTI
SDTO
(PLL Reference Clock: LRCK pin)
(3-2-1) Evaluation of A/D using DIT of AK4114
X2 (X’tal) and PORT2 (DIT) are used. Nothing should be connected to PORT1 (DIR) and PORT4 (DSP).
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP46
4114_MCKI
JP35
PHASE
JP48
M/S
DIR
EXT
DIR
4040
DIR
4040
<KM089000>
THR
INV
Master
Slave
2007 / 05
- 10 -
[AKD4671-B]
(3-2-2) Evaluation of D/A using DIR of AK4114
PORT1 (DIR) is used. Nothing should be connected to PORT2 (DIT) and PORT4 (DSP).
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP46
4114_MCKI
JP35
PHASE
JP51
SDTI_SEL
DIR
EXT
DIR
4040
DIR
THR
4040
INV
DIR
ADC
JP48
M/S
Master
Slave
(3-2-3) Evaluation of Loop-back using AK4114
X2 (X’tal) is used. Nothing should be connected to PORT1 (DIR), PORT2 (DIT) and PORT4 (DSP).
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP46
4114_MCKI
JP35
PHASE
JP51
SDTI_SEL
DIR
EXT
DIR
4040
DIR
THR
4040
INV
DIR
ADC
JP48
M/S
Master
Slave
(3-2-4) All interface signals including master clock are fed externally
PORT4 (DSP) is used. Nothing should be connected to PORT1 (DIR) and PORT2 (DIT).
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP46
4114_MCKI
JP35
PHASE
JP51
SDTI_SEL
DIR
EXT
DIR
4040
DIR
4040
THR
INV
DIR
ADC
JP48
M/S
Master
Slave
<KM089000>
2007 / 05
- 11 -
[AKD4671-B]
(4) PLL Master Mode
When an external clock (11.2896MHz, 12MHz, 12.288MHz, 13MHz, 13.5MHz, 19.2MHz, 24MHz, 26MHz or
27MHz) is input to MCKI pin, the MCKO, BICK and LRCK clocks are generated by an internal PLL circuit. The
MCKO output frequency is selected by PS1-0 bits and the output is enabled by MCKO bit. The BICK output
frequency is selected between 32fs or 64fs, by BCKO bit.
11.2896MHz, 12MHz, 12.288MHz, 13MHz,
13.5MHz, 19.2MHz, 24MHz, 26MHz,
27MHz
DSP or μP
AK4671
MCKI
MCKO
256fs/128fs/64fs/32fs
32fs, 64fs
BICK
1fs
LRCK
MCLK
BCLK
LRCK
SDTO
SDTI
SDTI
SDTO
(4-1) Evaluation of A/D using DIT of AK4114
J12 (EXT) and PORT2 (DIT) are used. Nothing should be connected to PORT1 (DIR) and PORT4 (DSP).
X’tal oscillator should be removed from X2.
In Master Mode, BICK and LRCK of AK4671 should be input to AK4114. Please refer to Table 2 on page 19.
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP46
4114_MCKI
JP35
PHASE
JP7
MCKO
DIR
EXT
DIR
4040
DIR
4040
THR
INV
JP48
M/S
Master
Slave
When a termination (51Ω) is unnecessary, please set JP39 (EXT) open.
<KM089000>
2007 / 05
- 12 -
[AKD4671-B]
(4-2) Evaluation of Loop-back
J12 (EXT) is used. Nothing should be connected to PORT1 (DIR), PORT2 (DIT) and PORT4 (DSP).
X’tal oscillator should be removed from X2.
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP46
4114_MCKI
JP35
PHASE
JP51
SDTI_SEL
DIR
EXT
DIR
4040
DIR
THR
4040
INV
DIR
ADC
JP48
M/S
Master
Slave
When a termination (51Ω) is unnecessary, please set JP39 (EXT) open.
(4-3) All interface signals including master clock are fed externally
PORT4 (DSP) is used. Nothing should be connected to PORT1 (DIR) and PORT2 (DIT).
The jumper pins should be set as the following.
JP36
MCLK
JP39
EXT
JP33
BICK_SEL
JP38
LRCK_SEL
JP46
4114_MCKI
JP35
PHASE
JP51
SDTI_SEL
DIR
EXT
DIR
4040
DIR
4040
THR
INV
DIR
ADC
JP48
M/S
Master
Slave
<KM089000>
2007 / 05
- 13 -
[AKD4671-B]
2. PCM I/F evaluation mode
A reference clock of PLLBT is selected among the input clocks to SYNCA, BICKA, SYNCB or BICKB pin.
The required clock to PCM I/F is generated by an internal PLLBT circuit. PLLBT circuit is powered up by
PMPCM bit. Input frequency is selected by PLLBT2-0 bits. BCKO2 bit select the output clock frequency of
BICKA or BICKB pin.
AK4671 does not support master mode for both PCM I/F A and B nor slave mode
for both PCM I/F A and B. When PMPCM bit is “0”, SYNCA, BICKA, SYNCB and BICKB pins are Hi-Z.
(1) PLLBT reference clock: SYNCA or BICKA pin
(1-1) SYNCA and BICKA are fed from on-board clock generator.
(1-2) SYNCA and BICKA are fed externally via PORT3 (Baseband Module).
(2) PLLBT reference clock: SYNCB or BICKB pin
(2-1) SYNCB and BICKB are fed from on-board clock generator.
(2-2) SYNCB and BICKB are fed externally via PORT6 (Bluetooth Module).
<KM089000>
2007 / 05
- 14 -
[AKD4671-B]
(1) PLLBT reference clock: SYNCA or BICKA pin
The PLLBT circuit generates the required clock for PCM I/F from SYNCA or BICKA. Generated clocks are output
via SYNCB and BICKB pins.
AK4671
Baseband Module
1fs2
SYNCA
SYNC
≥ 16fs2
BICKA
BICK
SDTOA
SDTI
SDTIA
SDTO
Bluetooth Module
1fs2
SYNCB
SYNC
16fs2 or 32fs2
BICKB
BICK
SDTOB
SDTI
SDTIB
SDTO
(PLLBT Reference Clock: SYNCA or BICKA pin)
(1-1) SYNCA and BICKA are fed from on-board clock generator.
X1 (X’tal), PORT3 (Baseband Module) and PORT6 (Bluetooth Module) are used.
The jumper pins should be set as the following.
Please set JP42 (BCFS2) to the required frequency. Follows are setting in BICKA=32fs.
When clocks are supplied from J13 (EXT1) without using X1, JP41 (MCLK2) should be set to “EXT1”.
JP42
BCFS2
JP41
MCLK2
JP40
XTE
XTL
EXT1
JP43
BICK2_SEL
JP45
LRCK2_SEL
JP49
PLLBT
BICKA BICKB
LRCKA LRCKB
BICKA BICKB
256fs2
128fs2
64fs2
32fs2
16fs2
JP62
BICKA
JP63
SYNCA
JP64
BICKB
JP65
SYNCB
JP61
SDTIB
<KM089000>
JP60
SDTIA
2007 / 05
- 15 -
[AKD4671-B]
JP47 (BICKA PHASE) is jumper which decides polarity of BICKA, “THR” or “INV” should be selected
according to the PCM I/F format.
JP54 (BICKB PHASE) should be set to “THR”.
JP47
BICKA PHASE
JP54
BICKB PHASE
THR
THR
INV
INV
In case of loop-back “SDTOA → SDTIA” and “SDTOB → SDTIB”, please set JP50 (SDTOA LOOP) and
JP55 (SDTOB LOOP) short.
JP50
SDTOA LOOP
JP55
SDTOB LOOP
(1-2) SYNCA and BICKA are fed externally via PORT3 (Baseband Module).
PORT3 (Baseband Module) and PORT6 (Bluetooth Module) are used.
SYNCA and BICKA should be supplied from PORT3.
The jumper pins should be set as the following.
JP41
MCLK2
JP40
XTE
XTL
EXT1
JP43
BICK2_SEL
JP45
LRCK2_SEL
JP49
PLLBT
BICKA BICKB
LRCKA LRCKB
BICKA BICKB
JP47 (BICKA PHASE) is jumper which decides polarity of BICKA, “THR” or “INV” should be selected
according to the PCM I/F format.
JP54 (BICKB PHASE) should be set to “THR”.
JP47
BICKA PHASE
JP54
BICKB PHASE
THR
THR
INV
INV
<KM089000>
2007 / 05
- 16 -
[AKD4671-B]
(2) PLLBT reference clock: SYNCB or BICKB pin
The PLLBT circuit generates the required clock for PCM I/F from SYNCB or BICKB. Generated clocks are output
via SYNCA and BICKA pins.
AK4671
Baseband Module
1fs2
SYNCA
BICKA
SYNC
16fs2 or 32fs2
BICK
SDTOA
SDTI
SDTIA
SDTO
Bluetooth Module
1fs2
SYNCB
SYNC
≥ 16fs2
BICKB
BICK
SDTOB
SDTI
SDTIB
SDTO
(PLLBT Reference Clock: SYNCB or BICKB pin)
(2-1) SYNCB and BICKB are fed from on-board clock generator.
X1 (X’tal), PORT3 (Baseband Module) and PORT6 (Bluetooth Module) are used.
The jumper pins should be set as the following.
Please set JP42 (BCFS2) to the required frequency. Follows are setting in BICKB=32fs.
When clocks are supplied from J13 (EXT1) without using X1, JP41 (MCLK2) should be set to “EXT1”.
JP42
BCFS2
JP41
MCLK2
JP40
XTE
XTL
EXT1
JP43
BICK2_SEL
JP45
LRCK2_SEL
JP49
PLLBT
BICKA BICKB
LRCKA LRCKB
BICKA BICKB
256fs2
128fs2
64fs2
32fs2
16fs2
JP62
BICKA
JP63
SYNCA
JP64
BICKB
JP65
SYNCB
<KM089000>
JP61
SDTIB
JP60
SDTIA
2007 / 05
- 17 -
[AKD4671-B]
JP54 (BICKB PHASE) is jumper which decides polarity of BICKB, “THR” or “INV” should be selected
according to the PCM I/F format.
JP47 (BICKA PHASE) should be set to “THR”.
JP47
BICKA PHASE
JP54
BICKB PHASE
THR
THR
INV
INV
In case of loop-back “SDTOA → SDTIA” and “SDTOB → SDTIB”, please set JP50 (SDTOA LOOP) and
JP55 (SDTOB LOOP) short.
JP50
SDTOA LOOP
JP55
SDTOB LOOP
(2-2) SYNCB and BICKB are fed externally via PORT6 (Bluetooth Module).
PORT3 (Baseband Module) and PORT6 (Bluetooth Module) are used.
Please supply SYNCB and BICKB from PORT6.
The jumper pins should be set as the following.
JP41
MCLK2
JP40
XTE
XTL
EXT1
JP43
BICK2_SEL
JP45
LRCK2_SEL
JP49
PLLBT
BICKA BICKB
LRCKA LRCKB
BICKA BICKB
JP54 (BICKB PHASE) is jumper which decides polarity of BICKB, “THR” or “INV” should be selected
according to the PCM I/F format.
JP47 (BICKA PHASE) should be set to “THR”.
JP47
BICKA PHASE
JP54
BICKB PHASE
THR
THR
INV
INV
<KM089000>
2007 / 05
- 18 -
[AKD4671-B]
„ DIP Switch set up
[S1] (SW DIP-6): Mode setting for AK4671 and AK4114.
No.
1
2
3
4
5
6
Name
DIF2
DIF1
DIF0
OCKS1
CAD0
I2C
ON (“H”)
OFF (“L”)
AK4114 Audio Format Setting
See Table 2
AK4114 Master Clock Setting : See Table 3
AK4671 Control Mode Setting
See Table 4
Default
ON
OFF
OFF
OFF
OFF
ON
Table 1. Mode Setting for AK4671 and AK4114
DIF2
0
0
0
0
1
1
1
1
DIF1
0
0
1
1
0
0
1
1
DIF0
0
1
0
1
0
1
0
1
DAUX
24bit, Left justified
24bit, Left justified
24bit, Left justified
24bit, Left justified
24bit, Left justified
24bit, I2S
24bit, Left justified
24bit, I2S
SDTO
16bit, Right justified
18bit, Right justified
20bit, Right justified
24bit, Right justified
24bit, Left justified
24bit, I2S
24bit, Left justified
24bit, I2S
LRCK
H/L
O
H/L
O
H/L
O
H/L
O
H/L
O
L/H
O
H/L
I
L/H
I
BICK
64fs
64fs
64fs
64fs
64fs
64fs
64-128fs
64-128fs
O
O
O
O
O
O
I
I
Default
Table 2. Setting for AK4114 Audio Interface Format
OCKS1
0
1
MCKO1
256fs
512fs
X’tal
256fs
512fs
Default
Table 3. Setting for AK4114 Master Clock
<KM089000>
2007 / 05
- 19 -
[AKD4671-B]
„ Other jumper pins set up
Sub Board
[JP1] (RIN2) : RIN2 input.
GND :
In case of full-differential input.
MPWR :
MIC-power is supplied to RIN2.
OPEN :
MIC-power is not supplied to RIN2. <Default>
[JP2] (LIN1) : LIN1 input.
SHORT :
MIC-power is supplied to LIN1.
OPEN :
MIC-power is not supplied to LIN1. <Default>
[JP3] (LIN2) : LIN2 input.
SHORT :
MIC-power is supplied to LIN2.
OPEN :
MIC-power is not supplied to LIN2. <Default>
[JP4] (RIN1) : RIN1 input.
GND :
In case of full-differential input.
MPWR :
MIC-power is supplied to RIN1.
OPEN :
MIC-power is not supplied to RIN1. <Default>
[JP5] (PVDD) : PVDD of AK4212 power supply.
SHORT :
PVDD is supplied from “PVDD” jack. <Default>
OPEN :
PVDD is not supplied from “PVDD” jack
[JP6] (PDN) : PDN of AK4212.
SHORT :
PDN is supplied from SW2 (PDN). <Default>
OPEN :
PDN is not supplied from SW2 (PDN).
[JP7] (MCKO) : MCKO output.
SHORT :
When AK4671 outputs MCKO. <Default>
OPEN :
When AK4671 does not output MCKO.
[JP8] (SDA) : SDA of AK4212.
SHORT :
SDA is supplied from PORT5 (CTRL). <Default>
OPEN :
SDA is not supplied from PORT5 (CTRL).
[JP9] (SCL) : SCL of AK4212.
SHORT :
SCL is supplied from PORT5 (CTRL). <Default>
OPEN :
SCL is not supplied from PORT5 (CTRL).
[JP10] (TVDD) : TVDD of AK4212 power supply.
SHORT :
TVDD is supplied from “DVDD” jack. <Default>
OPEN :
TVDD is not supplied from “DVDD” jack
[JP11] (AVDD) : AVDD of AK4212 power supply.
SHORT :
AVDD is supplied from “AVDD” jack. <Default>
OPEN :
AVDD is not supplied from “AVDD” jack
[JP12] (U2 RIN1) : RIN1 of AK4212 input
SHORT :
RIN1 is supplied from ROUT2. <Default>
OPEN :
RIN1 is not supplied from ROUT2.
[JP13] (U2 LIN1) : LIN1 of AK4212.
SHORT :
LIN1 is supplied from LOUT2. <Default>
OPEN :
LIN1 is not supplied from LOUT2.
<KM089000>
2007 / 05
- 20 -
[AKD4671-B]
[JP14] (U2 SPRIN) : SPRIN of AK4212.
SHORT :
SPRIN is supplied from ROUT3. <Default>
OPEN :
SPRIN is not supplied from ROUT3.
[JP15] (U2 SPLIN) : SPLIN of AK4212.
SHORT :
SPLIN is supplied from LOUT3. <Default>
OPEN :
SPLIN is not supplied from LOUT3.
Main Board
[JP30] (GND) : AGND and DGND.
SHORT :
Common. <Default>
OPEN :
Separated.
[JP46] (4114_MCKI) : MCKI of AK4114.
SHORT :
MCKO of AK4671.
OPEN :
X’tal (X2). <Default>
[JP56] (D3V) : Power supply of PORT7
SHORT :
It is supplied from “D3V” jack.
OPEN :
It is not supplied from “D3V” jack. <Default>
[JP57] (I2C PIN) : AK4671 I2C input.
I2C :
It is supplied from S1 (I2C). <Default>
MCLK2 :
It is supplied from MCLK2.
<KM089000>
2007 / 05
- 21 -
[AKD4671-B]
„ The function of the toggle SW
[SW2] (PDN) : Power down of AK4671. Keep “H” during normal operation.
[SW1] (DIR) : Power down of AK4114. Keep “H” during normal operation.
Keep “L” when AK4114 is not used.
„ Indication for LED
[LED1] (ERF) : Monitor INT0 pin of the AK4114. LED turns on when some error has occurred to AK4114.
„ Serial Control
The AK4671 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT5
(CTRL) with PC by 10 wire flat cable packed with the AKD4671.Table 4 shows switch and jumper settings for
serial control. I2C Mode should be selected in Table 4.
Note) When evaluate it in SAR-ADC of AK4671, 4-WIRE Mode should be selected in Table 4.
PORT5
CSN
Connect
CCLK/SCL
CDTI/SDA AKD4671
CDTO/SDA
PC
10 wire
flat cable
10pin
Connector
10pin
Header
Figure 2. Connect of 10 wire flat cable
Mode
4-WIRE
CAD0=0
I2C
CAD0=1
S1 (DIP SW)
JP52
I2C
CAD0
CTRL_SEL
4-WIRE
OFF
OFF
ON
OFF
I2C
ON
ON
Table 4. Serial Control Setting
<KM089000>
JP53
CTRL_SEL2
4-WIRE
I2C
Default
2007 / 05
- 22 -
[AKD4671-B]
„ Analog Input/Output Circuits
(1) Input Circuits
(1-1) LIN1/RIN1, LIN2/RIN2, LIN3/RIN3 and LIN4/RIN4 Input Circuit
J2
1
LIN1
2
3
RIN1
LIN1/RIN1
LIN2
JP23
C50
1u
1
R39
LIN2
LIN3
LIN4
(short)
+
2
3
4
5
J5
LIN
LIN3
LIN_SEL
LIN4
RIN2
JP25
C53
1u
1
R42
(short)
RIN2
RIN3
RIN4
+
2
3
4
5
J7
RIN
RIN3
RIN_SEL
RIN4
Figure 3. LIN1/RIN1, LIN2/RIN2, LIN3/RIN3 and LIN4/RIN4 Input Circuit
LIN2/RIN2, LIN3/RIN3 and LIN4/RIN4 share J5/J7.
JP23 (LIN_SEL) and JP25 (RIN_SEL) select each path.
(1-2) SAIN1, SAIN2 and SAIN3 Input Circuit
SAIN1
JP28
2
3
4
5
J9
SAIN
SAIN1
SAIN2
SAIN3
1
SAIN2
SAIN_SEL
SAIN3
2
3
4
5
J11
SAIN3
1
Figure 4. SAIN1, SAIN2 and SAIN3 Input Circuit
SAIN1, SAIN2 and SAIN3 share J9.
JP28 (SAIN_SEL) select each path.
<KM089000>
2007 / 05
- 23 -
[AKD4671-B]
(2) Output Circuits
(2-1) LOUT1/ROUT1, LOUT2/ROUT2 and LOUT3/ROUT3 Output Circuit
JP16
LOUT3
LOUT2
LOUT2
+
R32
LOUT3
LOUT1
C44
1u
LOUT_SEL
J1
LOUT
1
2
3
4
5
R33
20k
+
LOUT1
220
JP17
HPL JACK
R34
(short)
C45
100u
R35
16
J3
1
JP58
L_16ohm
+
2
3
HP
JP19
HPR JACK
R37
(short)
C47
100u
JP59
R_16ohm
JP21
ROUT3
ROUT2
ROUT2
+
R38
ROUT3
ROUT1
C49
1u
ROUT1
R36
16
ROUT_SEL
220
1
J4
ROUT
2
3
4
5
R40
20k
Figure 5. LOUT1/ROUT1, LOUT2/ROUT2 and LOUT3/ROUT3 Output Circuit
LOUT1/ROUT1, LOUT2/ROUT2 and LOUT3/ROUT3 share J1/J4.
JP16 (LOUT_SEL) and JP21 (ROUT_SEL) select each path.
(2-2) Headphone of AK4212 Output Circuit
JP13 (U2LIN1) and JP12 (U2RIN1) on sub board should be shorted, and LOUT2S and ROUT2S signal should
be input to Headphone-Amp block of AK4212.
JP13
U2LIN1
JP12
U2RIN1
R43
HPL
(short)
J10
1
R44
2
3
HPR
(short)
4212 HP
Figure 6. Headphone of AK4212 Output Circuit
<KM089000>
2007 / 05
- 24 -
[AKD4671-B]
(2-3) Speaker of AK4212 Output Circuit
JP15 (U2SPLIN) and JP14 (U2SPRIN) on sub board should be shorted, and LOUT3 and ROUT3 signal
should be input to Speaker-Amp block of AK4212.
JP15
U2SPLIN
JP14
U2SPRIN
LOUTP
J6
1
2
3
LOUTN
SPK_L
J8
1
ROUTP
2
3
SPK_R
ROUTN
Figure 7. Speaker of AK4212 Output Circuit
* AKM assumes no responsibility for the trouble when using the above circuit examples.
<KM089000>
2007 / 05
- 25 -
[AKD4671-B]
Control Software Manual
„ Set-up of evaluation board and control software
1. Set up the AKD4671-B according to previous term.
2. Connect IBM-AT compatible PC with AKD4671-B by 10-line type flat cable (packed with AKD4671-B). Take
care of the direction of 10pin header. (Please install the driver in the CD-ROM when this control software is used
on Windows 2000/XP. Please refer “Installation Manual of Control Software Driver by AKM device control
software”. In case of Windows95/98/ME, this installation is not needed. This control software does not operate
on Windows NT.)
3. Insert the CD-ROM labeled “AKD4671-B Evaluation Kit” into the CD-ROM drive.
4. Access the CD-ROM drive and double-click the icon of “AKD4671.exe” and “AKD4212 .exe” to set up the
control program. In case of evaluation using AK4212, “AKD4212 .exe” is necessary.
5. Then please evaluate according to the follows.
„ Operation flow
Keep the following flow.
1. Set up the control program according to explanation above.
2. Click “Port Reset” button.
3. Click “Write default” button
„ Explanation of each buttons
[Port Reset] :
[Write default] :
[All Write] :
[Function1] :
[Function2] :
[Function3] :
[Function4] :
[Function5]:
[SAVE] :
[OPEN] :
[Write] :
[Filter] :
[5 Band EQ] :
Set up the USB interface board (AKDUSBIF-A) .
Initialize the register of AK4671.
Write all registers that is currently displayed.
Dialog to write data by keyboard operation.
Dialog to write data by keyboard operation.
The sequence of register setting can be set and executed.
The sequence that is created on [Function3] can be assigned to buttons and executed.
The register setting that is created by [SAVE] function on main window can be assigned to
buttons and executed.
Save the current register setting.
Write the saved values to all register.
Dialog to write data by mouse operation.
Set Programmable Filter (FIL1, FIL3, EQ) of AK4671 easily.
Set 5Band Equalizer of AK4671 easily.
„ Indication of data
Input data is indicated on the register map. Red letter indicates “H” or “1” and blue one indicates “L” or “0”. Blank
is the part that is not defined in the datasheet.
<KM089000>
2007 / 05
- 26 -
[AKD4671-B]
„ Explanation of each dialog
1. [Write Dialog] : Dialog to write data by mouse operation
There are dialogs corresponding to each register.
Click the [Write] button corresponding to each register to set up the dialog. If you check the check box, data
becomes “H” or “1”. If not, “L” or “0”.
If you want to write the input data to AK4671, click [OK] button. If not, click [Cancel] button.
2. [Function1 Dialog] : Dialog to write data by keyboard operation
Address Box:
Data Box:
Input registers address in 2 figures of hexadecimal.
Input registers data in 2 figures of hexadecimal.
If you want to write the input data to AK4671, click [OK] button. If not, click [Cancel] button.
3. [Function2 Dialog] : Dialog to evaluate DATT
Address Box:
Input registers address in 2 figures of hexadecimal.
Start Data Box:
Input starts data in 2 figures of hexadecimal.
End Data Box:
Input end data in 2 figures of hexadecimal.
Interval Box:
Data is written to AK4671 by this interval.
Step Box:
Data changes by this step.
Mode Select Box:
If you check this check box, data reaches end data, and returns to start data.
[Example] Start Data = 00, End Data = 09
Data flow: 00 01 02 03 04 05 06 07 08 09 09 08 07 06 05 04 03 02 01 00
If you do not check this check box, data reaches end data, but does not return to start data.
[Example] Start Data = 00, End Data = 09
Data flow: 00 01 02 03 04 05 06 07 08 09
If you want to write the input data to AK4671, click [OK] button. If not, click [Cancel] button.
<KM089000>
2007 / 05
- 27 -
[AKD4671-B]
4. [Save] and [Open]
4-1. [Save]
Save the current register setting data. The extension of file name is “akr”.
<Operation flow>
(1) Click [Save] Button.
(2) Set the file name and push [Save] Button. The extension of file name is “akr”.
4-2. [Open]
The register setting data saved by [Save] is written to AK4671. The file type is the same as [Save].
<Operation flow>
(1) Click [Open] Button.
(2) Select the file (*.akr) and Click [Open] Button.
<KM089000>
2007 / 05
- 28 -
[AKD4671-B]
5. [Function3 Dialog]
The sequence of register setting can be set and executed.
(1) Click [F3] Button.
(2) Set the control sequence.
Set the address, Data and Interval time. Set “-1” to the address of the step where the sequence should be
paused.
(3) Click [Start] button. Then this sequence is executed.
The sequence is paused at the step of Interval="-1". Click [START] button, the sequence restarts from the paused
step.
This sequence can be saved and opened by [Save] and [Open] button on the Function3 window. The extension of file
name is “aks”.
Figure 8. Window of [F3]
<KM089000>
2007 / 05
- 29 -
[AKD4671-B]
6. [Function4 Dialog]
The sequence that is created on [Function3] can be assigned to buttons and executed. When [F4] button is clicked,
the window as shown in Figure 9. opens.
Figure 9. [F4] window
<KM089000>
2007 / 05
- 30 -
[AKD4671-B]
6-1. [OPEN] buttons on left side and [START] buttons
(1) Click [OPEN] button and select the sequence file (*.aks).
The sequence file name is displayed as shown in Figure 10.
Figure 10. [F4] window (2)
(2) Click [START] button, then the sequence is executed.
6-2. [SAVE] and [OPEN] buttons on right side
[SAVE] : The sequence file names can assign be saved. The file name is *.ak4.
[OPEN] : The sequence file names assign that are saved in *.ak4 are loaded.
6-3. Note
(1) This function doesn't support the pause function of sequence function.
(2) All files need to be in same folder used by [SAVE] and [OPEN] function on right side.
(3) When the sequence is changed in [Function3], the file should be loaded again in order to reflect the change.
<KM089000>
2007 / 05
- 31 -
[AKD4671-B]
7. [Function5 Dialog]
The register setting that is created by [SAVE] function on main window can be assigned to buttons and executed.
When [F5] button is clicked, the following window as shown in Figure 11.opens.
Figure 11. [F5] window
7-1. [OPEN] buttons on left side and [WRITE] button
(1) Click [OPEN] button and select the register setting file (*.akr).
The register setting file name is displayed as shown in Figure 12.
(2) Click [WRITE] button, then the register setting is executed.
<KM089000>
2007 / 05
- 32 -
[AKD4671-B]
Figure 12. [F5] windows(2)
7-2. [SAVE] and [OPEN] buttons on right side
[SAVE] : The register setting file names assign can be saved. The file name is *.ak5.
[OPEN] : The register setting file names assign that are saved in *.ak5 are loaded.
7-3. Note
(1) All files need to be in same folder used by [SAVE] and [OPEN] function on right side.
(2) When the register setting is changed by [Save] Button in main window, the file should be loaded again in order to
reflect the change.
<KM089000>
2007 / 05
- 33 -
[AKD4671-B]
8. [Filter Dialog]
This dialog can easily set the AK4671’s programmable filter.
A calculation of a coefficient of Digital Programmable Filter such as HPF,EQ filter ,a write to a register and check
frequency response.
Window to show to Figure 13 opens when push a [Filter] button .
Figure 13. [Filter] window
<KM089000>
2007 / 05
- 34 -
[AKD4671-B]
8-1. Setting of a parameter
(1) Please set a parameter of each Filter.
Item
Sampling Rate
FIL3
Cut Off Frequency
Filter type
Gain
HPF
Cut Off Frequency
Contents
Sampling frequency (fs)
Stereo separation emphasis filter cut off
frequency
Type of stereo separation emphasis filter
Gain of stereo separation emphasis filter
Setting range
7350Hz ≤ fs ≤ 48000Hz
fs/10000 ≤ Cut Off Frequency ≤
(0.497 * fs)
LPF or HPF
–10dB ≤ Gain ≤ 0dB
High pass filter cut off frequency
fs/10000 ≤ Cut Off Frequency
≤ (0.497 * fs)
LPF
Cut Off Frequency
Low pass filter cut off frequency
fs/20 ≤ Cut Off Frequency ≤
(0.497 * fs)
EQ for Gain Compensation (EQ0)
Pole Frequency
Pole Frequency
Zero-point Frequency
Zero-point Frequency
Gain
5 Band Equalizer
EQ1-5 Center Frequency
Gain
EQ1-5 Center Frequency
EQ1-5 Band Width
EQ1-5 Band Width
(
Note 1)
EQ1-5 Gain
EQ1-5 Gain
(
Note 2)
Note 1. Bandwidth where the gain gap is 3dB compared with center frequency.
Note 2. When a gain is smaller than "0", EQ becomes a notch filter.
fs/10000 ≤ Pole Frequency ≤
(0.497 * fs)
fs/10000 ≤ Zero-point Frequency
≤ (0.497 * fs)
0dB ≤ Gain ≤ +12dB
0Hz ≤ Center Frequency < (0.497
* fs)
1Hz ≤ Band Width < (0.497 * fs)
-1≤ Gain < 3
(2) Please set ON/OFF of Filter with check buttons of “FIL3”, “EQ0”, “LPF”, “HPF”, “HPFAD”, “EQ1”, “EQ2”,
“EQ3”, “EQ4”, “EQ5”. When the button is checked, Filter becomes ON. When “Notch Filter Auto Correction”
is checked, automatic compensation is executed for center frequency of notch filter.
(“Cf. 8-4. automatic compensation for center frequency of a notch filter”)
Figure14. Filter ON/OFF setting button
<KM089000>
2007 / 05
- 35 -
[AKD4671-B]
8-2. A calculation of a register
A register setting values are displayed when [Register Setting] button is clicked. When any value is set to out of
range, error message is displayed, and a calculation of register setting is not executed.
Figure15. A register setting calculation result
In the following cases, a register set values are updated.
(1) When [Register Setting] button was pushed.
(2) When [Frequency Response] button was pushed.
(3) When [UpDate] button was pushed on a frequency characteristic indication window.
(4) When set ON/OFF of a check button “Notch Filter Auto Correction”
<KM089000>
2007 / 05
- 36 -
[AKD4671-B]
8-3.Indication of a frequency characteristic
A frequency characteristic is displayed when [Frequency Response] button is clicked. The register values are
updated at the same time.
If "Frequency Range" is changed, and [UpDate] button is clicked, indication of a frequency characteristic is
updated.
Figure16. A frequency characteristic indication result
In the following cases, a register set values are updated.
(1) When [Register Setting] button was pushed.
(2) When [Frequency Response] button was pushed.
(3) When [UpDate] button was pushed on a frequency characteristic indication window.
(4) When set ON/OFF of a check button “Notch Filter Auto Correction”
8-4. Automatic compensation for center frequency of a notch filter
When a gain of 5 band Equalizer is set to "-1", Equalizer becomes a notch filter. When center frequency of several
notch filters are near frequency each other, center frequency error occurs (Figure 17).
When "Notch Filter Auto Correction" button is checked, automatic compensation is executed for center frequency
of a notch filter.
Register setting and frequency characteristics are displayed after automatic compensation (Figure18).
This automatic compensation is available for EqualizerBand where a gain is set to "-1".
(Note) When distance among center frequencies is smaller than band width, there is a possibility that automatic
compensation does not operate normally. Please confirm a compensation result by indication of a frequency
characteristic.
<KM089000>
2007 / 05
- 37 -
[AKD4671-B]
Setting of center frequency: 4400Hz, 5000Hz, 5400Hz / Band Width : 200Hz(3 band common)
Figure17. When there is no compensation of center frequency
Setting of center frequency: 4400Hz, 5000Hz, 5400Hz / Band Width : 200Hz(3 band common)
Figure18. When there is compensation of center frequency
<KM089000>
2007 / 05
- 38 -
[AKD4671-B]
9. [5 Band EQ Dialog]
This dialog can easily set the AK4671’s 5-Band Equalizer.
Figure 19. [5 Band EQ] window
When the check box of “5 Band EQ” is checked, 5-Band Equalizer is ON (EQ bit = ”1”).
When the slide button is changed, its value is written to the internal register immediately.
<KM089000>
2007 / 05
- 39 -
[AKD4671-B]
Revision History
Date
(YY/MM/DD)
Manual
Revision
Board
Revision
07/05/15
KM089000
0
Reason
Contents
First
Edition
IMPORTANT NOTICE
• These products and their specifications are subject to change without notice. Before considering any
use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or authorized
distributor concerning their current status.
• AKM assumes no liability for infringement of any patent, intellectual property, or other right in the
application or use of any information contained herein.
• Any export of these products, or devices or systems containing them, may require an export license
or other official approval under the law and regulations of the country of export pertaining to customs
and tariffs, currency exchange, or strategic materials.
• AKM products are neither intended nor authorized for use as critical components in any safety, life
support, or other hazard related device or system, and AKM assumes no responsibility relating to
any such use, except with the express written consent of the Representative Director of AKM. As
used here:
(a) A hazard related device or system is one designed or intended for life support or maintenance of
safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its
failure to function or perform may reasonably be expected to result in loss of life or in significant
injury or damage to person or property.
(b) A critical component is one whose failure to function or perform may reasonably be expected to
result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or
system containing it, and which must therefore meet very high standards of performance and
reliability.
• It is the responsibility of the buyer or distributor of an AKM product who distributes, disposes of, or
otherwise places the product with a third party to notify that party in advance of the above content
and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability
for and hold AKM harmless from any and all claims arising from the use of said product in the
absence of such notification.
<KM089000>
2007 / 05
- 40 -
A
B
SAIN1 SAIN2 SAIN3
LIN1
RIN1
LIN2
C
RIN2
LIN3
RIN3
LIN4
RIN4
D
4670_TVDD2
4670_PVDD
4670_AVDD
E
80pin_4
61
62
63
64
65
66
67
68
69
70
71
TP7
LIN4
TP8
RIN4
1
TP6
RIN3
1
72
TP5
LIN3
1
73
TP4
RIN2
1
74
75
TP3
LIN2
1
76
TP2
RIN1
1
77
1
1
TP1
LIN1
JP1
RIN2
AVDD
E
E
R1
MPWR
CN3
R2
2.2k
TP18
LOUT3
1
JP4
RIN1
SPLIN
JP3LIN2
R3
2.2k
TP19
ROUT3
60
LOUT3
59
ROUT3
58
LOUT2
57
ROUT2
56
LOUT1
55
ROUT1
1
MPWR
R4
2.2k
JP2LIN1
TP16
LOUT2
1
2.2k
TP46
AVDD
SPRIN
TP15
ROUT2
1
1
TP45
VSS1
1
GND
1
1
TP9
TP10 TP11
SAIN1 SAIN2 SAIN3
GND
1
78
79
80
CN4
1
TP40
MPWR
1
TP12
LOUT1
TP13
ROUT1
D
1
TP34
TEST
A1
MDT
TEST
A9
B1
MPWR
LOUT2
B9
SAIN3
ROUT2
C9
SAIN2
MUTET
C8
1
TP22
MUTET
PVDD
10
TP61
BICKB
+
SDTOB
VSS2
F9
SYNCB
TVDD2
F8
C20
0.1u
TP58 51
SYNCB
R12
F1
TP14
PVDD
R6
10k
R27
10k
C4
10u
TP17
VSS2
C1
4.7n
C40
4.7n
9
CP
11
12
10
CN
PVDD
RIN3/IN3+
CDTI/SDA
7
LIN3/IN3-
CCLK/SCL
6
TVDD
5
AVSS
4
51
R20
19
C21
10u
C14
C15
2.2u
0.1u
51
VREF
21
RIN2/IN2+
AK4212
TP28
TVDD2
51
12
BICKB
SDTOA
G9
TP60 51
SDTIB
R14
G1
SDTIB
SYNCA
H9
22
LIN2/IN2-
AVDD
3
23
RIN1/IN1+
SPRIN
2
24
LIN1/IN1-
MIXR
1
51
TP42
MCKI
51
41
AVDD
TP32
SPRIN
AVDD
80pin_3
SPLIN
B
TP38
SPLIN
1
32
MIXL
31
LOUTN
30
LOUTP
SVSS
29
28
ROUTP
SVDD
27
ROUTN
C27
0.22u
25
GPO2
CDTI/SDA
C31
1
H8
J9
DVDD
J7
H7
H6
VSS4
CCLK/SCL
CSN/CAD0
J6
BICK
J5
H5
I2C
MCKO
H4
J4
MCKI
LRCK
J8
LOUTP
42
JP11
C24
0.1u
TP33
GPO2
+
TP49
BICK
J3
J2
1
16
SDTIA
C26
0.22u
TP29
LOUTP
1
4670_LRCK
PDN
1
TP48 51
LRCK
R23
H3
1
GPO1
SDTO
15
U2 LIN1
J1
CDTO
4670_SDTO
B
JP13
G8
TP31
GPO1
R26
TP35 51
SDTO
R25
H2
TP39
SDTI
1
14
BICKA
26
U2 RIN1
SDTI
TVDD
43
+
4670_SDTI
C23
10u
LOUTN
44
DVDD
+
51
H1
13
45
TP25
LOUTN
SCL
C19
10u
+
C22
0.1u
JP12
R19
220k
JP9
1
11
4670_SDTIB
G2
SDA
SDA
SCL
C18
0.1u
1
4670_BICKB
R11
C
JP8
JP10
20
1
4670_SYNCB
46
8
1
1
1
9
F2
PDN
E8
1
4670_SDTOB
LIN4/IN4-
1
AK4671
TVDD3
18
C5
0.1u
TP59
SDTOB R13
47
R16
1
E2
8
VSS3
C16
0.1u
48
PDN
51
R18
1
1
C17
10u
17
TP20
VCOCBT
13
VCOCBT
E9
E1
1
TP27
TVDD3
C13
0.1u
1
1
C12 +
10u
+
TP26
VSS3
PVSS
D8
+
7
2.2u
PVEE
VCOC
TP43
VCOC
+
4670_TVDD3
2.2u 0.1u
PDN
JP6
U2
14
SAVDD
+
HPL
D2
5
2.2u
C38
HPR
D9 0.1u
16
VCOM
15
SAIN1
TP44
VCOM
RIN4/IN4+
D1
49
1
C6
1u
C35
6
10u
C9
C8
C2
4
HPL
50
JP5
PVDD
C10
+
1
1
C1
+
TP24
SAVDD
3
C
51
TP23
HPL
C7
+
4670_SAVDD
HPR
52
1
2
53
TP21
HPR
AVDD
ROUT1/RCN
54
A8
B8
C36
0.1u
VSS1
B7
A7
LOUT1/RCP
LOUT3/LOP
ROUT3/LON
A6
B6
A5
RIN4/IN4-
B5
LIN4/IN4+
RIN3/IN3-
B4
A4
LIN3/IN3+
LIN2/IN2+
RIN2/IN2-
B3
A3
B2
RIN1/IN1-
A2
1
LIN1/IN1+
NC
MDT
TP41
C3
U1
CN1
C39
10u
+
D
C3
1u
1
C2
1u
1
R5
open
R28
51
4670_MCKO
19
R17
51
R15
51
0.1u
R29
51
R30
51
C25
C11
(open)
1
TP36
MCKO
1
18
+
4670_MCKI
C33
10u
JP7
R31
51
JP15
TP37
DVDD
SPLIN
1
17
1
4670_BICK
R21
10u
C34
0.015u
1k
TP30
VSS4
MCKO
R24
U2 SPLIN
R7
51
R9
51
R10 R8
51
51
C37
0.033u
20
PDN
JP14
SCL
80pin_1
SPRIN
SDA
DVDD
TP47
SVDD
R22
C28
0.015u
1k
A
C29
0.033u
1
TP57
ROUTP
1
TP56
ROUTN
1
1
1
1
1
TP62 TP64 TP63 TP65
SDTIA BICKA SYNCA SDTOA
1
TP53 TP54
CCLK CDTI
1
1
TP55 TP52
CDTO CSN
1
1
A
TP50
I2C
1
TP51
PDN
U2 SPRIN
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
CN2
Title
4670_PDN
4670_I2C
A
CSN/CAD0
4670_CDTO
CDTI/SDA
4670_DVDD
CCLK/SCL
4670_SDTIA
4670_SYNCA
4670_BICKA
B
4670_SDTOA
ROUTN
ROUTP
Size
SVDD
A2
Date:
C
D
AKD4671-B
Document Number
Rev
AK4671
Wednesday, April 04, 2007
E
0
Sheet
1
of
5
A
B
C
D
E
AGND1
E
OUT
C42 +
0.1u
C41
0.1u
C43
47u
1
T45_BK
J2
1
1
LIN1
2
3
RIN1
LOUT2
LOUT1
LOUT1
C44
1u
LOUT_SEL
R32
220
J1
LOUT
1
JP17
R34
HPL JACK (short)
LIN1/RIN1
SVDD
C45
100u
R35
16
JP58
L_16ohm
2
1
2
+
C51
47u
2
1
2
C52
47u
LIN2
JP23
LIN2
LIN3
LIN4
JP19
HPR JACK
R37
(short)
LIN_SEL
LIN4
4670_SAVDD
JP59
R_16ohm
JP21
ROUT3
ROUT3
ROUT2
ROUT2
ROUT1
ROUT1
C49
1u
ROUT_SEL
4670_PVDD
J7
RIN
C53
1u
R42
(short)
RIN2
RIN3
RIN4
1
1
2
+
C54
47u
RIN3
2
J6
1
1
1
+
2
T45_OR
C55
47u
LOUTN
2
3
ROUTP
1
4670_DVDD
SPK_L
JP27
TVDD2_SEL
L6
1
2
3
4
5
LOUTP
(short)
C
TVDD2
D
J4
ROUT
1
RIN_SEL
RIN4
1
R38
220
R40
20k
RIN2
JP25
1
+
2
3
4
5
JP26
DVDD_SEL
L5
T45_OR
HP
R36
16
JP24
PVDD_SEL
2
(short)
R41
10
DVDD1
C47
100u
LIN3
(short)
1
+
R39
(short)
JP22
SAVDD_SEL
L4
1
T45_OR
C50
1u
1
+
1
J5
LIN
4670_AVDD
2
3
4
5
L3
1
T45_OR
PVDD1
C48
47u
2
(short)
+
1
+
D
SAVDD1
JP20
AVDD_SEL
L2
1
T45_OR
J3
2
3
+
C46
47u
1
AVDD1
2
3
4
5
R33
20k
1
+
2
T45_OR
2
JP18
SVDD_SEL
LOUT3
LOUT2
1
SVDD1
L1
(short)
1
JP16
LOUT3
+
T45_RED
+
IN
1
1
2
REG1
GND
T1
TA48033F
E
2
4670_TVDD2
(short)
J9
SAIN
2
3
4
5
SAIN1
SAIN2
SAIN3
1
J8
2
3
SAIN1
JP28
C
SPK_R
SAIN2
ROUTN
SAIN_SEL
SAIN3
1
+
2
T45_OR
C56
47u
+
2
T45_OR
J11
SAIN3
C57
47u
2
1
2
C96
47u
(short)
1
J10
R44
2
3
HPR
VCC
(short)
4212 HP
1
+
HPL
(short)
JP66
VCC2_SEL
L11
1
T45_OR
R43
1
JP31
VCC_SEL
L8
B
VCC2
4670_TVDD3
(short)
1
1
1
2
2
3
4
5
JP30
GND
VCC1
JP29
TVDD3_SEL
L7
1
1
TVDD3
B
2
VCC2
2
D3V
(short)
L9
D3V1
1
1
1
+
2
T45_OR
DGND1
C58
47u
(short)
1
T45_BK
A
A
Title
Size
A2
Date:
A
B
C
D
AKD4671-B
Document Number
Rev
Power Supply, I/O
Wednesday, April 04, 2007
E
Sheet
2
0
of
5
A
B
C
D
E
E
E
D3V
EXT_MCLK
EXT_BICK
4114_BICK
JP32
R45
51
EXT
14
C59
0.1u
JP39
EXT
D
7
10
CLK
11
RST
MKFS
16
C60
0.1u
Vcc
8
GND
JP35
INV PHASE
4040
JP37
LRCK
JP38
DIR LRCK_SEL
ERF
1
2
3
4
5
6
1A
1Y
2A
2Y
3A
3Y
14
Vcc
7
GND
4Y
4A
5Y
5A
6Y
6A
4114_INT0
4114_PDN
C62
0.1u
C61
0.1u
R47
10k
D1
U6 74HC14
8
C63
0.1u
74AC163
L
HSU119
H
SW1
DIR
2
U5
16
D
8
9
10
11
12
13
MCKO
ENT
ENP
Vcc
CLK
LOAD
CLR GND
LED1
R46
1k
4114_LRCK
14
13
12
11
15
QA
QB
QC
QD
Carry
THR
BCFS
fs-384
fs
4040
A
10
7
2
9
1
A
B
C
D
64fs-384
32fs-384
64fs
32fs
U4 74HC4040
U3 74AC74
3
4
5
6
9
7
6
5
3
2
4
13
12
14
15
1
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
VD
Q9
Q10
Q11
DGND Q12
A
1
JP34
256fs
512fs
1024fs
384/768fs
MCKO
13
12
11
10
9
8
1CLR 2CLR
1D
2D
1CK
2CK
1PR
2PR
1Q
2Q
1Q
2Q
K
DIR
1
2
3
4
5
6
1
2
3
4
5
JP36
MCLK
3
J12
EXT
EXT_LRCK
K
4114_MCKO
JP33
DIR BICK_SEL
7
14
14
Vcc
4Y
4A
5Y
5A
6Y
6A
8
9
10
11
12
13
4670_PDN
C
R48
10k
A
C64
0.1u
1A
1Y
2A
2Y
3A
3Y
K
GND
Vcc
4Y
4A
5Y
5A
6Y
6A
1A
1Y
2A
2Y
3A
3Y
1
2
3
4
5
6
C
1
2
3
4
5
6
HSU119
GND
U8 74HC14
H
SW2
PDN
2
C66
0.1u
L
3
7
C65
0.1u
D2
1
8
9
10
11
12
13
VCC
U7
74HCU04
4.096MHz
X1
1
2
R49
1M
JP40
XTE
C67
5p
C68
5p
B
B
EXT_MCLK2
D3V
J13
EXT1
XTL
JP41
MCLK2
JP42
512fs2
EXT1
10
CLK
11
RST
R50
51
JP44
EXT1
16
C69
0.1u
8
U9
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
VD
Q9
Q10
Q11
DGND Q12
9
7
6
5
3
2
4
13
12
14
15
1
256fs2
128fs2
64fs2
32fs2
16fs2
BICKA
EXT_BICKA
BICKB
EXT_BICKB
JP43
BICK2_SEL
BCFS2
1fs2
74HC4040
A
LRCKA
EXT_LRCKA
LRCKB
EXT_LRCKB
A
JP45
LRCK2_SEL
Title
Size
A2
Date:
A
B
C
D
AKD4671-B
Document Number
Rev
CLOCK
Wednesday, April 04, 2007
E
Sheet
0
3
of
5
A
B
C
D
E
D3V
E
PORT1
E
L10 (short)
VCC
3
GND
OUT
2
1
1
2
C70
0.1u
TORX141
C71
0.1u
R51
470
C72 10u
+
C73
------OFF------
1
IPS0
2
37
INT1
38
AVDD
R
VCOM
AVSS
40
41
42
RX0
43
NC
44
RX1
45
46
47
48
NC
TEST1
S1
SW DIP-6
D
INT0
36
NC
OCKS0
35
3
DIF0
OCKS1
34
4
TEST2
CM1
33
5
DIF1
CM0
32
6
NC
PDN
31
4114_INT0
DIF2
DIF1
DIF0
OCKS1
CAD0
I2C
1
2
3
4
5
6
L
1 2 3 4 5 6
RX2
H
RX3
12
11
10
9
8
7
U10
R52
18k
39
C74
0.47u
VCC
D
0.1u
CAD0
7
6
5
4
3
2
1
I2C
AK4114
RP1 47k
C
4114_PDN
C75 5p
MCKO
JP46 4114_MCKI
7
DIF2
XTI
30
8
IPS1
XTO
29
9
P/SN
DAUX
28
10
XTL0
MCKO2
27
11
XTL1
BICK
26
4114_BICK
12
VIN
SDTO
25
4114_SDTO
1
C
2
X2
11.2896MHz
C76 5p
DAUX
LRCK
24
MCKO1
23
C78
0.1u
22
DVSS
DVDD
21
VOUT
20
UOUT
19
COUT
18
BOUT
17
TX1
16
15
14
TVDD
13
C77
0.1u
TX0
B
DVSS
B
C80
10u
+
+
4114_LRCK
C79
10u
4114_MCKO
PORT2
IN
VCC
3
2
GND
1
C81
0.1u
A
A
TOTX141
Title
Size
A3
Date:
A
B
C
D
AKD4671-B
Document Number
Rev
DIR/DIT
Wednesday, April 04, 2007
Sheet
E
0
4
of
5
A
B
C
D
THR
EXT_BICKA
VCC
INV
D3V
E
VCC2
JP47
BICKA PHASE
U12
U11
4
EXT_BICK
5
E
6
R53
10k
7
6
5
4
3
2
1
PORT4
2 GND
4 GND
6
8
10 SDTO
1
3
5
7
9
8
9
10
B1
A2
A3
21
B2
20
B3
19
B4
18
A5
B5
17
A6
B6
16
A7
B7
15
A8
B8
14
A4
4670_LRCK
4670_BICK
EXT_MCLK2
RP3 47k
2
1
Slave
C83
0.1u
11
Master
12
JP48
M/S
DIR
OE
VCCA
22
VCCB
24
VCCB
23
GND
MCLK2
BICKA
LRCKA
SDTIA
VCC
1
3
5
7
9
2 GND
4 GND
6
8
10 SDTOA
R54
10k
Baseband
JP62
BICKA
3
A1
B1
21
4
A2
B2
20
5
A3
B3
19
6
A4
B4
18
7
A5
B5
17
8
A6
B6
16
9
A7
B7
15
10
A8
B8
14
2
DIR
1
VCCA
4670_BICKA
4670_SYNCA
JP63
SYNCA
RP5 47k
D3V
13
SDTOA1
JP50
SDTOA LOOP
SDTIA
74AVC8T245
E
7
6
5
4
3
2
1
RP4 47k
C84
0.1u
GND
GND
7
6
5
4
3
2
1
PORT3
7
6
5
4
3
2
1
RP2 47k
DSP
EXT_LRCKA
C82
0.1u
BICKA
MCLK
BICK
LRCK
SDTI
VCC
7
A1
BICKB
3
EXT_LRCK
JP49
PLLBT
OE
11
GND
12
GND
22
VCCB
24
VCCB
23
GND
13
C85
0.1u
74AVC8T245
VCC
U13
D
D
DAUX
D3V
I2C
I2C
4670_I2C
MCLK2
JP51
ADC SDTI_SEL
4114_SDTO
JP57
I2C PIN
EXT_MCLK
EXT_MCLK2
I2C (CAD0)
CAD0
C
4-WIRE
R55
10k
R56
10k
PORT5
10
8
6
4
2
9
7
5
3
1
CSN
CCLK/SCI
CDTI/SDA
CDTO/SDA(ACK)
R58
R59
R60
470
470
470
MCKO
3
A1
B1
21
4
A2
B2
20
5
A3
B3
19
6
A4
B4
18
7
A5
B5
17
8
A6
B6
16
CSN/CAD0
CCLK/SCL
9
A7
B7
15
10
A8
B8
14
A1
B1
21
4
A2
B2
20
5
A3
B3
19
6
A4
B4
18
7
A5
B5
17
8
A6
B6
16
9
A7
B7
15
10
A8
B8
14
2
DIR
1
VCCA
4670_SDTO
4670_MCKO
4670_SDTI
4670_MCKI
D3V
C86
0.1u
11
GND
12
GND
OE
22
VCCB
24
VCCB
23
GND
13
D3V
C88
0.1u
C87
0.1u
2
DIR
1
VCCA
11
GND
12
GND
OE
22
VCCB
24
VCCB
23
GND
13
14
7
B
4670_CDTO
1A
2A
3A
4A
5A
6A
R61
1k
1Y
2Y
3Y
4Y
5Y
6Y
INV
EXT_BICKB
2
4
6
8
10
12
JP54
THR BICKB PHASE
CDTI/SDA
EXT_LRCKB
Vcc
VCC2
GND
U18
PORT7
SDTIA
1A1
1B1
13
5
1A2
1B2
12
2
1DIR
1OE
15
6
2A1
2B1
11
EXT_MCLK2
4670_SDTIB
4670_SDTIA
JP60
SDTIA
CTRL SAR ADC
SDTOB1
SDTOA1
D3V
7
2A2
2B2
10
3
2DIR
2OE
14
1
VCCA
VCCB
16
GND
GND
9
C95
0.1u
A
8
7
6
5
4
3
2
1
PORT6
SDTIB
4
SDTIB
D3V
C
C90
0.1u
JP61
JP56
D3V
GND
U15 74HC14
JP53
CTRL_SEL2
74LVC07
DIN
CSN
SCLK
Vcc
7
8
9
10
11
12
13
VCC2
U16
C91
0.1u
9
7
5
3
1
14
4Y
4A
5Y
5A
6Y
6A
74AVC8T245
1
3
5
9
11
13
8
6
4
VCCIO 2
1A
1Y
2A
2Y
3A
3Y
I2C (ACK)
CTRL
DOUT 10
1
2
3
4
5
6
4-WIRE (CDTO)
74AVC8T245
JP52
CTRL_SEL
C89
0.1u
R57
10k
VCC
U14
DIR
3
MCLK2
BICKB
LRCKB
SDTIB
VCC
1
3
5
7
9
2 GND
4 GND
6
8
10 SDTOB
R62
10k
Bluetooth
U17
JP64
BICKB
3
A1
B1
21
4
A2
B2
20
5
A3
B3
19
6
A4
B4
18
7
A5
B5
17
8
A6
B6
16
4670_BICKB
4670_SYNCB
JP65
SYNCB
B
9
A7
B7
15
10
A8
B8
14
2
DIR
1
VCCA
7
6
5
4
3
2
1
RP6 47k
D3V
RP7 47k
C92
0.1u
4670_SDTOB
4670_SDTOA
11
GND
12
GND
OE
22
VCCB
24
VCCB
23
GND
13
C93
0.1u
74AVC8T245
SDTOB1
JP55
SDTOB LOOP
SDTIB
C94
0.1u
A
74AVC4T245
Title
Size
AKD4671-B
Document Number
Date:
A
B
C
D
Rev
LOGIC
A2
Wednesday, April 04, 2007
E
Sheet
0
5
of
5
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