AK8136A

AKD8136A
Evaluation Board for AK8136A
AKD8136A
Description
The AKD8136A is an evaluation board for AK8136A clock generator. Therefore, it is easy to evaluate
the jitters and VCXO performance.
.
Ordering guide

AKD8136A
Block Diagram
VDD
VSS
CLK1p
CLK1n
CLK2
SDA
AK8136A
CLK3
SCL
CLK4
XI
XO
REFOUT
VREF
VIN
Figure 1. AK8136A Evaluation Board
AKD1108-E-01
Mar-2010
-1-
AKD8136A
Functions
1. Power
3. Crystal Unit
2. Selector
Output line length = 5 [inch]
4. Dummy capacitor
Figure 2. AKD8136A_A top view
1. Power Supply
Please connect the lead line to P1 (3.3V : TYP) and P2 (GND).
2. Selector Setting
Selector 1-2 are connected to the serial interface pins of AK8136A.
If these pins are controlled with USB interface, please keep these selectors “SDA_USB” and “SCL_USB”
respectively.
Table 1. Selector Connection
Selector
SEL1
SEL2
Connect to:
AK8136A Pin15 (SDA)
AK8136A Pin16 (SCL)
3. Quartz oscillator foot pattern
C19 and C20 are the load capacitance for crystal unit. In case of external clock input, please remove these
capacitors.
Mar-2010
AKD1108-E-01
-2-
AKD8136A
4. Dummy capacitor loads
There are several dummy capacitor loads, C28 through C31. It is useful to measure clock performance or
current consumption by loading capacitor which is virtually assumed in the system. It is important to take line
capacitance into account and it is approximately 5pF. Consequently if there is 15pF capacitance assumed in
the system, another 10pF capacitor needs to be mounted. Each clock outputs from AK8136A lead to TP2,
TP3, TP4 and TP7. Chassis mount test jacks for miniature probe (Tektronix 131-0258-00) are available by
mounting there.
Table 2. Dummy capacitor Connection
TPn/Cn
TP2/C28
TP3/C29
TP4/C30
TP7/C31
Connect to:
AK8136A Pin5 (CLK2)
AK8136A Pin8 (CLK3)
AK8136A Pin9 (CLK4)
AK8136A Pin18 (REFOUT)
Mar-2010
AKD1108-E-01
-3-
AKD8136A
Jitter measurement
Device:AK8136A
Mar-2010
AKD1108-E-01
-4-
5
4
3
2
1
AKD8136A_Evaluation Board2.
VDD_IF1
GND
1
C31_2
GND2
2
1
C6_2
22uF
GND4 5
GND2
R11_2
SEL2_2
2.2k
2 GND1
2
VSS1
1
1
SDA_PIC2
2
TP
0
GND1
0
1
VDD2
1
GND1
C14_2 C7_2
0.01u
0.1u
GND1
0
R4_2
1
C29_2
10pf
XO
VDD3
REFOUT
VDDi
SCL
SDA
CLK1n
CLK1p
VDD1
GND1
R7_2 30
1uF
0.1u
0.01u
TP
1
1
1
1
1
1
1
1
1
1
D0
OSCO
D4
OSCI
D2
TEST
VCCIO
AGND
D1
NC2
D7
RXF#
GND1
TXE#
NC1
GND3
D5
VCC
D6
RESET#
D3
GND2
PWREN# 3V3OUT
RD#
USBDM
WR
USBDP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
1
TP OSCO_2
TP OSCI_2
1
1
1
TP NC2-7
TP RXF_2
TP TXE_2
1
TP RES_2
GND2
B
0.1u
GND2
C12_2
C13_2
0.1u
4.7u
2
C23_2
FB1_2
GND2
GND2
GND2
TP121gnd
5
4
3
2
1
TP111gnd
1
C30_2
C25_2
C26_2
GND
gnd
2p
TP113
CLK1p
GND1
47p
C21_2
TP
TP
R5_2
1
47p
C22_2
2p
GND2GND2
GND2
GND2
GND2
USB2.0
A
TP112
CLK1n
Size
A3
Date:
4
0.01u
GND
GND2
D+
DVbus
C18_2
GND
Title
5
Con1_2
USB-miniB
1
GND1
1
0
TP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
1
1
FT245R
TP
TP106
R8_2 30
C15_2
10pf
A
D1_2TP
D7_2TP
GND1_2TP
NC1_2 TP
D5_2 TP
D6_2 TP
D3_2 TP
PW_2TP
RD_2 TP
WR_2TP
1
CLK4 TP
0.01u
VDD1
C8_2
GND1
0.1u
GND1
C24_2
GND1
TP120
20
19
18
17
16
15
14
13
12
11
IC4_2
D0_2TP
D4_2TP
D2_2TP
1
gnd
TP
XI
GND3
VIN
GND4
CLK2
VDD2
GND2
CLK3
CLK4
VREF
C16_2
1
TP122
1
2
3
4
5
6
7
8
9
10
C9_2
1
TP115
TP
CLK3
VDDi
IC1_2 8136a
10pf
TP116
gnd TP
SDA_USB2
TP
R3_2
C28_2
B
VSS1
GND1
R6_2
TP
TP119
CLK2 TP
0.01u
TP110gnd
7
GND1
SDA_
1
0.1u
0
3
C17_2
1
C10_2
3
SLD
GND
1
GND
1
2
VDD3
TP
10pf
C
GND2
SEL1_2
R10_2
2.2k
1
GND1
2
PIC_SW0
SCL_USB2
TP
VDD_IF1
GND1
R2_2
S0_2
1
3
1
C27_2
PIC12F683 & [8pin DIPsoket]
VDD_IF1
VSS1
GND
GND1
TP108gnd
P4_2GND
C20_2xx pf
C19_2 xx pf
TP
3
PinHead
R1_2
Y1_2crystal
0
1 1 2 2
GND
TP109
VIN
SCL_PIC2
TP
2
3
GND
P3_2
TP107gnd
2.2k
GND2
8
7
6
5
VSS
SCL
SDA
S0
SLD3
50 R9_2
VSS1
C
1
1
VDD
S2
S1
Mclr_N
SLD4 SLD2
GND1
IC3_2
1
2
3
4
R12_2
TP
C5_2
22uF
GND2
+
3
4 GND3
GND2
1
GND1
C11_20.1u
8
1
C4_2
22uF
GND1
VDD_IF2
VDD_IF1
VDD_IF1
SMA1_2
ssma
1
C3_2
22uF
GND1
+
TP118gnd
2
3
PIC_SW1
1
C2_2
22uF
+
1
1
+
S1_2
JP6_2
JUMPER_0
CKIN
+
D
VDD_IF1
TP117
gnd
VDD_IF1
VDDi
VDD3
TP
GND
JP5_2
JUMPER_0
JP4_2
JUMPER_0
1
1
1
JP3_2
JUMPER_0
VDD2
VDD1
2
2
2
2
1
JP2_2
JUMPER_0
TP REFOUT
10pf
TP
GND1
PIC_SW2
GND2
6
JUMPER_0
TP114
9
1
2
100uF
1
JP1_2
1
D
2
3
+
1
C1_2
S2_2
1
P2_2 GND
GND
P1_2 GND
1
AMD.
3
2
AKD8136A_Evaluation Board2.
Document Number
<Doc>
Tuesday, January 13, 2009
Rev
<RevCo
Sheet
1
1
of
1
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