LMK04616 Datasheet, PDF (23/128 Pages) Texas Instruments – Ultra-Low Noise and Low Power JESD204B Compliant Clock Jitter Cleaner With Dual Loop PLLs

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LMK04616
SNAS663 – MARCH 2017
Overview (continued)
• Holdover Status.
The status pins can be programmed to a variety of other outputs including PLL divider outputs, combined PLL
lock detect signals, readback, and so forth. See Programming for more information.
A full list of functions can be found in STATUS0/1 and SYNC Pin Functions.
9.2 Functional Block Diagram
Figure 14 illustrates the complete block diagram.
PLL2_CAP0/1
OSCin
VCXO
VDD_PLL1 VDD_PLL2CORE
(3.3 V)
(1.8 - 3.3 V)
PLL1_CAP
CTRL_VCXO ^VDD_PLL2OSC
(3.3 V)
VDD_OSC
(1.8 - 3.3 V)
VDD_IO
(1.8 - 3.3 V)
P
CLKin0
CMOS
&
Diff
Input Stage
M
U
LOS
X
CMOS & Diff
CLKin1
CMOS
&
Diff
CLKin2
CLKin3
CMOS
&
Diff
CMOS
&
Diff
2
DIGITAL FSM
VDD1v8 VDD3v3
PLL1
M
Ref Clk
/R
U
X
DIV
MUX
OSCin
/N
DIV
LDO
LDO
1v8/1V2 3v3/2V5
Analg
Prop-CP
I
ADC/
DAC
Digital
Strg-CP
0.5 V - 3.3 V
Ctrl_VCXO
CLKin_SEL
Clock
controls CLKin0/1 only Control
VDD3v3
VDD1v8
SD-PLL2
BIASING
INIT &
RESET
LC-VCO
LDO
3v3/2v5
LDO
1v8/1V2
DRV
REF
(Digital Control)
x2
M
U
X
/R
DIV
Prop
PRE
SCALER
DRV
DIVIDER
REF
(Digital
I
Control)
StSotroargaege
/N
Storage
DIV
Intgrl
VDD_CORE
(3.3 V)
Control Voltage
Supplies / BGAP / POR
DRV
REF
M
U ^{Int. Div}
X
8 bit
DRV
VDD_OSCout
OSCout
SYNC & RST
LDO
DRV
P
VDDO_0/1
(1.8 - 3.3 V)
CLKout0
DRV
CLKout1
SYNC & RST
LDO
DRV
P
VDDO_6/7
(1.8 - 3.3 V)
CLKout6
DRV
CLKout7
SYNC & RST
LDO
DRV
P
VDDO_8/9
(1.8 - 3.3 V)
CLKout8
SDIO
SCL
SS
RESET
SYNC
Input Stage
Clock
Control
Device
Configuration
Registers
Boot-Up
Holdover
Output
Channels
JESD204B
SYNC
Digital
Device Control
and Status
Async SYSREF_REQ
Async SYNC
SYNC & SYSREF_REQ
Generation
Syncd SYNC
(PLL1/PLL2 Status & Test)
(Digital Status & Debug)
DRV
CLKout9
SYNC & RST
LDO
DRV
P
VDDO_14/15
(1.8 - 3.3 V)
CLKout14
DRV
CLKout15
STATUS1
(LVCMOS)
STATUS0
(LVCMOS)
Figure 14. Detailed LMK04616 Block Diagram
Copyright © 2017, Texas Instruments Incorporated
Copyright © 2017, Texas Instruments Incorporated
Product Folder Links: LMK04616
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