Texas Instruments Clock Jitter Cleaner With Dual Cascaded PLLs and Integrated 2.2 GHz VCO LMK04805BEVAL/NOPB LMK04805BEVAL/NOPB 데이터 시트
제품 코드
LMK04805BEVAL/NOPB
L M K 0 4 8 X X E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S
51
Reference Inputs (CLKin0 & CLKin1), External VCXO (OSCin) & VCO Circuits, and OSCout1 Output
1
1
2
2
3
3
4
4
5
5
6
6
D
D
C
C
B
B
A
A
5
9
Clock Inputs
1/3/2012
InClks.SchDoc
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National Semiconductor and/or its licensors do not warrant the accuracy or completeness of
this specification or any information contained therein. National and/or its licensors do not
warrant that this design will meet the specifications, will be suitable for your application or fit
for any particular purpose, or will operate in an implementation. National and/or its licensors
do not warrant that the design is production worthy. You should completely validate and test
your design implementation to confirm the system functionality for your application.
this specification or any information contained therein. National and/or its licensors do not
warrant that this design will meet the specifications, will be suitable for your application or fit
for any particular purpose, or will operate in an implementation. National and/or its licensors
do not warrant that the design is production worthy. You should completely validate and test
your design implementation to confirm the system functionality for your application.
© Copyright, National Semiconductor, 2009
http://www.national.com
Contact:
http://www.national.com/support
LMK048xx Evaluation Board
Project:
Designed for:
Evaluation Customer
870
600534
3.0
Assembly Variant:
LVPECL240 - 2011-07-26
0
C13
18
R24
270
R26
0.1µF
C18
DNP
51
R33
DNP
0.1µF
C19
0.1µF
C12
100pF
C17
DNP
0
R30
270
R31
DNP
0
C20
FBCLKin/CLKin1 Impedance Matching and Attenuation
CLKin1
0.1µF
C16
DNP
0
R3
270
R7
DNP
0.1µF
C2
0.1µF
C6
270
R6
DNP
0.1µF
C3
DNP
100
R9
0
R11
0
C5
CLKin0 Impedance Matching and Attenuation
270
R17
DNP
0.1µF
C7
DNP
0
C22
0
C25
270
R40
DNP
270
R50
DNP
OSCout1 (LVPECL only)
Vcc_VCO
100pF
C15
DNP
0.1µF
C14
0
R22
CLKin0_P
CLKin0_N
CLKin1_P
CLKin1_N
OSCout1_P
OSCout1_N
0.1µF
C24
0.1µF
C21
0
R37
0
R46
82
R35
DNP
VccCLKoutPlane
270
R39
DNP
82
R44
DNP
VccCLKoutPlane
270
R49
DNP
100
R42
DNP
VCC_VCO_TP
GND
3
Vtune
2
GND
1
G
N
D
7
M
o
d
6
G
N
D
5
G
N
D
8
GND
4
GND
9
Fout
10
GND
11
GND
12
G
N
D
13
V
c
c
14
G
N
D
15
G
N
D
16
U3
CRO2949A-LF
DNP
0.1µF
C301
DNP
0
R301
DNP
10k
R302
DNP
10k
R303
DNP
Vcc_VCO_OpAmp
0
R300
DNP
Vcc_VCO_OpAmp
4
3
2
1
5
V+
V-
U300
LMP7731MF
LMP7731MF
VCO_Vtune
PLL2 External VCO Loop Filter
Vcc_VCO_LDO
0.1µF
C303
DNP
0
R29
270
R27
270
R32
DNP
0.1µF
C302
CLKin0*
SMA
CLKin0
SMA
FBCLKin*/CLKin1*
SMA
FBCLKin/CLKin1
SMA
DNP
OSCout1*
SMA
OSCout1
SMA
51
R25
DNP
100
R28
DNP
62
R38
DNP
62
R45
DNP
68
R43
P
1
NC
2
PD
3
S
4
SCT
5
SD
6
B2
BALUN - ADT2-1T+
DNP
0
R36
0
R47
51
R41
DNP
OSCout1_2_N
OSCout1_2_P
P
1
NC
2
PD
3
S
4
SCT
5
SD
6
B1
BALUN - ADT2-1T+
DNP
0
R2
0
R13
51
R8
DNP
CLKin0_2_N
CLKin0_2_P
51
R34
DNP
51
R48
DNP
51
R14
DNP
270
R15
DNP
51
R5
DNP
Vtune
1
NC
2
GND
3
RF
4
RF*
5
Vs
6
U2
CVHD-950-122.88
OSCin VCXO
120
R10
DNP
120
R16
DNP
0
R21
100
R4
0
R23
DNP
0
R1
DNP
0
R12
0.1µF
C4
0.1µF
C8
DNP
FB 1000 ohm 600 mA
R18
OSCinN
OSCinP
0
R230
DNP
GND_VCXO
OSCin
SMA
DNP
OSCin*
SMA
DNP
100pF
C3_AB1
DNP
10µF
C11
2200pF
C10
82pF
C9
Switch resistor for signal
(shared pad)
(shared pad)
Switch resistor for signal
(shared pad)
(shared pad)
0
R375
0
R374
Vtune_VCXO
VCC_VCXO_TP
GND_VCXO
0.1µF
C367
100pF
C368
GND_VCXO
Vcc_VCXO
OSCout1_1_P
OSCout1_1_N
0
C1
0
R353
0
C300
240
C26
240
C23