Texas Instruments LMK04828 User Guide

VccPLLPlane
0.1µF
C335
DNP
120 FB
R326
DNP
120 FB
R330
DNP
VccCLKoutPlane
120 FB
R328
DNP
0.1µF
C329
DNP
Power Plane for LMK Except Outputs
Power Planes for LMK Outputs
Vcc
VccAuxPlane
VccCLKoutPlane
VccPLLPlane
Direct Power - NO Regulators
120 FB
R343
VccAuxPlane
IN
4
ADJ
6
GND
3
NC
7
SD
8
DAP
9
OUT
5
BYP
1
NC
2
U302
LP3878SD-ADJ/NOPB
LP3878-ADJ 3.3 V component values:
C340 = 4.7 uF
R350= 51 k
C346 = 0.01 uF R356= 866
C352 = 10 uF
R351= 2.00 k
C341 = 2.2 nF
0.01µF
C323
0.1µF
C322
1µF
C321
1µF
C347
0
R332
1
1
2
2
J1
TERMBLOCK_2
IN
6
OUT
1
GND
3
EN
4
NC
5
DAP
7
NC
2
U305
LP5900SD-3.3/NOPB
GND
V_LM3878-ADJ
C359 = 0.47 uF
C360 = 0.47 uF
R369 = 51 k
LP3878SD-ADJ
LP5900SD-3.3
LP5900 Component values
0
R100
0
R327
0
R329
0
R331
0
R346
120 FB
R345
0
R106
120 FB
R347
0.1µF
C312
1µF
C311
10µF
C310
0.1µF
C319
1µF
C318
10µF
C317
0.1µF
C326
1µF
C325
10µF
C324
Aux Power for XO/VCXO, Status LEDs
0.01µF
C315
1µF
C314
10µF
C313
1µF
C337
Vcc2_CG1
Vcc1_VCO
Vcc5_DIG
Vcc9_CP2
Vcc6_PLL1
Vcc7_OSCout
Vcc8_OSCin
Vcc10_PLL2
CG3
CG0
CG2
CG1
Vcc12_CG0
VCO
Digital
CP2
PLL1
OSCout
OSCin
PLL2
0
R349
120 FB
R358
1
2 3 4 5
Vcc
142-0701-201
Vcc_VCO
1
2
VccVCO/Aux
142-0711-201
DNP
VccAuxPlane
0
R229
DNP
0
R337
120 FB
R342
LDO_Out_LP3878
TESTPOINT
VccTP
TESTPOINT
0.1µF
C316
DNP
0.1µF
C320
DNP
100pF
C327
DNP
0.1µF
C328
DNP
100pF
C332
DNP
0.1µF
C334
DNP
0.1µF
C336
DNP
51k
R350
0.1µF
C346
2.00k
R351
866
R356
51k
R369
0.47µF
C359
0.47µF
C360
0
R54
DNP
4.7µF
C340
1µF
C342
2200pF
C341
0
R105
1
2
VccVCXO/Aux
142-0711-201
DNP
0
R352
DNP
VccAuxPlane
Vcc11_CG3
0
R101
Vcc4_CG2
1µF
C364
1µF
C343
120 FB
R354
120 FB
R371
0
R364
IN
6
OUT
1
GND
3
EN
4
NC
5
DAP
7
NC
2
U303
LP5900SD-3.3/NOPB
GND
C359 = 0.47 uF
C360 = 0.47 uF
R369 = 51 k
LP5900SD-3.3
LP5900 Component values
51k
R360
0.47µF
C350
0.47µF
C351
VccLDOin
0
R363
DNP
0
R367
DNP
Vcc_VCO_LDO
0
R373
0
R368
DNP
0
R370
DNP
Vcc_VCXO_LDO
Vcc_VCXO
0
R19
Switch resistor
for power.
10µF
C352
VccPLLPlane
VccCLKoutPlane
0.1µF
C361
DNP
Regulator to power VCO Separately
Regulator to power VCXO Separately
LDO for powering LMK04828
0
R310
0
R323
0
R334
0
R340
0
R339
0
R338
0
R335
0
R107
SYSREF
Vcc3_SYSREF
1µF
C300
120 FB
R344
OUT
1
OUT
2
FB
3
GND
4
NC
5
RT/CLK
6
PGND
7
PGND
8
PVIN
9
PVIN
10
VSENSE
12
COMP
13
SS
14
EN
15
PH
16
PH
17
BOOT
18
PWRGD
19
NC
20
LDOEN
21
NR
22
LDOIN
24
VIN
11
LDOIN
23
DAP
0
U301
TPS54120RGYR
DNP
0
R377
DNP
10µF
C370
DNP
40.2k
R365
DNP
0
R378
DNP
0.01µF
C371
DNP
2.2k
R380
DNP
0.047µF
C373
DNP
330pF
C372
DNP
0.1µF
C358
DNP
47µF
C363
DNP
100pF
C362
DNP
0.1µF
C369
DNP
41.2k
R366
DNP
10k
R379
DNP
10µF
C356
DNP
0.1µF
C355
DNP
0.1µF
C357
DNP
0
R362
DNP
30.9k
R311
DNP
0.1µF
C354
DNP
10k
R361
DNP
0.01µF
C353
DNP
4.7µF
C333
DNP
100µF
C331
DNP
GND
DC-DC to LDO to Power LMK04828
22µH
L300
744031220
DNP
GND GND
GND
GND
GND
GND
0
R74
DNP
120 FB
R305
120 FB
R307
GND
0
R95
120
R333
120
R341
Vcc2_CG1_1
Vcc4_CG2_1
Vcc11_CG3_1
Vcc12_CG0_1
Vcc3_SYSREF_1
Vcc9_CP2_1
Vcc10_PLL2_1
Vcc8_OSCin_1
Vcc7_OSCout_1
Vcc6_PLL_1
Vcc5_DIG_1
Vcc1_VCO_1
GND_TP
TESTPOINT
0
R336
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SNAU145B–MAY 2013–Revised March 2018
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Schematics
C.1 Power Supply

Texas Instruments LMK04828 Specifications

General

Brand	Texas Instruments
Model	LMK04828
Category	Motherboard
Language	English