AK8119A

AKD8141 & AK811x ver.2
Evaluation Board for AK8141 & 811x
AKD8141_811x ver.2
For AK811x evaluation
Description
AKD8141_8111x _Evaluation Board is a common evaluation board for the ICs; AK8141 and AK8111x
series.
Ordering Information

AKD8141_811x
◆ Device type
1) AK8141
2) AK811x
※PKG type :
6SON (2.0x1.6mm)
6USON (2.0x1.8mm)
6USON (1.4x1.4mm)
Configuration
Block Diagram
AK8141_811x Evaluation Board
AKD8141_811x-E-00
Nov-10
-1-
AKD8141_811x
Functions
1. Power supply
OSC
2. Clock input
AK8141
AK811x
AK811x
(6USIN 1.4x1.4mm)
AK8141_811x
(6USIN 2.0x1.8mm
or6SON )
3. Clock output
Figure 1. AKD8141_811x top view
Circuit Diagram is attached in last page.
※ AK8141 Settings
This manual only refer to AK811x evaluation.
Please refer to AK8141 Datasheet and another manual for AK8141 evaluation.
Nov-10
AKD8141_811x-E-00
-2-
The brand name
of AKM’s IC’s
AKD8141_811x
1. Power Supply
Please connect the lead line to VDD (3.3V; Red) and VSS (GND; Black).
When using a crystal oscillator as an input, please supply 3.3V to VDD_OSC PAD (Orange) too.
2. Clock Input
It is possible to input the clock from Crystal oscillator (DIP 8 pin compatible type or SMD type) and external
clock from SMA-A connector.

SMA-A
Crystal Unit
Y1-4: 2520 type crystal oscillator
mountable.
Clock output from crystal oscillator
selected by setting “OE1-4 STANBY”.
connector
is
is
8pin
DIP socket
“OE1-4 STANBY”=H: Clock output from
Crystal oscillator is enabled
“OE1-4 STANBY”=L: Oscillation stop
Crystal
oscillator
U1-4: 8pin DIP compatible type crystal
oscillator is available here.

Figure.2 Clock Input
External Clock
U5-8: It is possible to input clock from
SMA-A connector.
R6.8.10.12 need to be connected, when
using clock from SMA-A connector.
3. Clock output
Clock output from AK8141_811x leads to each
connector. Spectrum Analyzer or Oscilloscope
is available to measure clock performances by
connecting here.
There are dummy capacitor loads, C5, C10,
C15, and C20 beside each IC clock output.
It is useful to measure clock performance or
current consumption by loading capacitor which
is virtually assumed in the system. A clock
outputs from AK8141 and 811x lead to J1-4.
Chassis mount test jacks for miniature probe
(Tektronix 131-0258-00) are available by
mounting there.
IC
GND
OUTPUT
Figure.3 Clock Output
4. AK811x Settings
・Clock output enable
”SW0x OE” enables each IC clock output.
“SW0x OE”=H: Clock output from Crystal oscillator is enabled
“SW0x OE”=L: Oscillation stop
(x= 2, 4, 6)
H : VDD
M : OPEN
L : GND
Figure.4 Switch
(SW0x_OE, SW0x_FSEL)
・Clock output Frequency settings
”SW0x FSEL” select output frequency of each IC (AK811x).
Please refer to AK811x datasheet to see each IC output frequency.
(x= 3, 5, 7)
AKD8141_811x-E-00
Nov-10
-3-
1
3
4
5
6
7
8
9
10
AK8141 Evaluation_Board_Ver.2
VDD_OSC_Pad
J
VDD_Pad
Pad1
TP_VSS
TP_VDD
1
TP_OSC
J
VSS_Pad
Pad2
1
1
Pad3
1
AKEMD.
2
TP01
I
VDD_OSC
1
SW_ OE3
VDD_OSC
1
SW_ OE2
VDD_OSC
SW_ OE1
VDD_OSC
1
1
4
3
1
4
1
4
+ C1
22uF
2
3
3
TP01
+ C2
22uF
VDD_OSC
1
2
2
2
3
TP01
I
VDD_OSC
VDD_OSC
SW_ OE4
1
4
VDD_OSC
VDD
1
1
VDD_OSC
STANBY
VDD
R8
MXO-50B
2
5
OUT
R7
50
VDD_OSC
2
3
4
3
1
DIP-8pinSocket
VDD_OSC
DIP-8pinSocket
SW_
1
2
TP01
VDD_OSC
2
3
F
VDD
1
2
3
SW03
4
3
2
1
VDD
1
TP01
SW05
PIC_S1
1
1
SW_
1
811x_CKIN1
1
SW07
1
1
TP01
SW_
8141_CKIN
1
1
SW_
F
811x_CKIN2
811x_FSEL1
2
3
3
IC5
S1
S2
S3
VDD
811x_FSEL2
VDD
G
SW_ PIC_S2
1
811x_FSEL3
811x_CKIN3
PIC_S3
3
CKIN
GND
7
8
6
6
3
2
NC
GND
0.1uf
7
GND3 4
OUT
R9
VDD
5
C6
SW_
1
R6
1
CKIN
50
VDD_OSC
4
7
6
6
3
3
8
1
7
VDD
NC
GND
0.1uf
2
GND3 4
OUT
R11
50
2
5
C11
3 GND2
SMA
0
1
CKIN
U5
FCXO-05
U1
2 GND1
GND
OUTPUT
VDD_OSC
GND4 5
0
DIP-8pinSocket
DIP-8pinSocket
H
Y1
2
3
R10
4
7
8
6
6
3
3
7
2
VDD
1
NC
GND
0.1uf
2
GND3 4
R13
50
GND4 5
5
C16
C7
0.1uf
GND3 4
2
3
2 GND1
U6
SMA
1
CKIN
OUT
MXO-50B
2
0
4
7
8
6
6
3
3
7
VDD
NC
1
2
0.1uf
2
G
VDD_OSC
GND4 5
R12
1
C21
3 GND2
GND
OUTPUT
SMA
0.1uf
MXO-50B
GND4 5
0
U7
U3
VDD_OSC
2
3
SMA
2
3
MXO-50B
2 GND1
U8
U4
VDD_OSC
3 GND2
GND
OUTPUT
H
C12
2 GND1
U2
Y2
3 GND2
FCXO-05
STANBY
VDD
Y3
FCXO-05
GND
OUTPUT
C17
0.1uf
STANBY
VDD
C22
0.1uf
STANBY
VDD
Y4
FCXO-05
C23
811x_OE2
PIC12F683
VDD
SW_
TP01
1
VDD
3
TP01
C13
0.1uf
0.01uf
WR Start
OE
VDD
VSS
C LKO U T
R1
1
1
2
3
3.3k
VDD
C24
1
2
2
D
3
3
TP01
IC2_VSS
TP01
1
0.1uf
C8
IC1_VSS
0.01uf
1
TP01
0.1uf
1
C4
C3
0.1uf
0.01uf
P_SW
1
C
0
R2
0
0
0
C15
0
C10
TP01
IC3_CLKOUT
TP01
VSS_TP3
con1
TP01
VSS_TP2
con1
J4
C5
TP_01
1
1
IC4_CLKOUT1
VSS_TP4
R3
0
1
TP_01
R4
TP_01
1
C20
1
1
1
C9
R5
B
VDD
1
2
3
4
C14
0
0
TP_01
TP_01
AK8141
IC2_CLKOUT
TP01
con1
VSS_TP1
J1
J2
1
1
B
con1
J3
1
TP01
AK8141_CLKOUT
1
C
C L K IN
FSEL
OE
TP01
IC3_VSS
0.01uf
XLAT
1
1 SCLK
TP_01
SDA
1
IC1
3
1
0.1uf
1
C18
1
2
IC2
AK811x
IC1_VDD
1
IC4_VSS
IC2_VDD
E
TP01
SW01
VDD
VSS
C LKO U T
C L K IN
FSEL
OE
TP01
1
C19
VDD
VSS
C LKO U T
IC3_VDD
VDD
1
2
3
IC4_VDD
TP01
VDD
1
2
3
D
IC3
AK811x
SW
1
6
5
4
6
5
4
6
5
4
C L K IN
FSEL
OE
VDD
VSS
C LKO U T
VDD
TP01
AK811x
8141_OE
2
3
IC4
VDD
1
2
3
SW02
5
6
7
8
SW04
C L K IN
XLAT
SC LK
SDATA
SW_
TP01
8
7
6
5
VDD
1
2
1
SW06
1
SW_
TP01
E
1
1
S
S
X
V
811x_OE1
DA
CL
LAT
SS
0.1uf
811x_OE3
Title
AK8141_Evaluation_Board_Ver.2
A
Size
A3
Date:
1
2
3
4
5
6
7
8
A
Document Number
<Doc>
Monday, July 14, 2008
9
Rev
<RevCode>
Sheet
1
of
10
1
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