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6V49205B 반도체 회로 부품 판매점

Freescale P10XX and P20XX System Clock w/Selectable DDR Frequency



IDT 로고
IDT
6V49205B 데이터시트, 핀배열, 회로
Freescale P10XX and P20XX System Clock
w/Selectable DDR Frequency
6V49205B
DATASHEET
General Description
The 6V49205B is a main clock for Freescale P10xx and
P20xx-based systems. It has a selectable System CCB clock
and 2 DDRCLK speeds – 100M or 66.66M. The 6V49205B
also provides LP-HCSL PCIe outputs for low power and
reduced board space.
Output Features
1 - Sys_CCB 3.3V LVCMOS output @ 100M/83.33M/
80M/66.66M
1 - DDRCLK 3.3V LVCMOS output @ 100M or 66.66M 1
1 - 125M 3.3V LVCMOS output
6 - LP-HCSL PCIe pairs selectable @ 100M or 125M
6 - 25MHz 3.3V LVCMOS outputs
2 - 2.048M 3.3V LVCMOS outputs
2 - USB 3.3V LVCMOS outputs @12M or 24M
Key Specifications
PCIe Gen1-2-3 compliant
<3p rms phase noise on REF outputs
Recommended Application
System Clock for Freescale P10xx and P20xx-based designs
Features
Replaces 11 crystals, 2 oscillators and 3 clock generators;
lowers cost, power and area
Integrated terminations on LP-HCSL PCIe outputs;
eliminate 24 resistors, saving 41mm2 of board area
Industrial temperature range operation; supports
demanding environmental conditions
Advanced 3.3V CMOS process; high-performance,
low-power
Supports independent spread spectrum on
Sys_CCB/DDRCLK and PCIe outputs
Available in space-saving 7x7mm 48-pin VFQFPN with
0.5mm pad pitch; reduced board space without the need for
fine-pitch assembly techniques
Block Diagram
SCLK
SDATA
^FS0
^FS1
^SEL100#_66
^SELPCIE125#_100
X1
25MHz
Crystal
X2
Control
Logic
Crystal
Oscillator
PLL1
(SS)
PLL4
(SS)
PLL3
(non-
SS)
PLL2
(non-
SS)
100MHz
GND
Sys_CCB
DDRCLK
PCIe_L(5:0)
USB_CLK(2:1)
2.048M(1:0)
125M
REF(5:0)
Note 1: For DDR Clock: Processor core and I/O supply rails must be ramped with VDD3P3 or earlier. Clock signal will be
clamped LOW and output clock will be 100MHz if this is not followed (see diagram below).
VDD3P3
DDRCLK
R40 10K
R39 10K
6V49205B REVISION R 11/23/16 1 ©2016 Integrated Device Technology, Inc.


6V49205B 데이터시트, 핀배열, 회로
6V49205B DATASHEET
Pin Assignments
X2_25 1
48 VDDREF
X1_25 2
47 SDATA
GNDREF 3
46 SCLK
REF5 4
45 GndDDR
REF4 5
44 ^SEL100#_66/DDRCLK
REF3 6
43 VddDDR
VDDREF 7
42 AVDDSYS
GNDREF 8
41 Sys_CCB
REF2 9
40 GNDSYS
REF1 10
39 GNDPCIe
^SELPCIE125#_100/REF0 11
38 PCIeT_LR5
AVDD12_24 12
37 PCIeC_LR5
^FS0/USB_CLK1 13
36 PCIeT_LR4
^FS1/USB_CLK2 14
35 PCIeC_LR4
GND12_24 15
34 GNDPCIe
GND2.048 16
33 AVDDPCIe
CK2.048_0 17
32 PCIeT_LR3
CK2.048_1 18
31 PCIeC_LR3
VDD2.048 19
30 PCIeT_LR2
AVDD125 20
29 PCIeC_LR2
125M 21
28 GNDPCIe
GND125M 22
27 VDDPCIe
PCIeT_LR0 23
26 PCIeT_LR1
PCIeC_LR0 24
25 PCIeC_LR1
48-Pin TSSOP
^ Indicates Internal 100kohm pull up resistor
48 47 46 45 44 43 42 41 40 39 38 37
X2_25 1
36 PCIeT_LR4
X1_25 2
35 PCIeC_LR4
GNDREF 3
34 GNDPCIe
REF5 4
33 AVDDPCIe
REF4 5
32 PCIeT_LR3
REF3 6
VDDREF 7
6V49205B
31 PCIeC_LR3
30 PCIeT_LR2
GNDREF 8
29 PCIeC_LR2
REF2 9
28 GNDPCIe
REF1 10
27 VDDPCIe
^SELPCIE125#_100/REF0 11
26 PCIeT_LR1
AVDD12_24 12
25 PCIeC_LR1
13 14 15 16 17 18 19 20 21 22 23 24
48-Pin VFQFPN
^ Indicates Internal 100kohm pull up resistor
FREESCALE P10XX AND P20XX SYSTEM CLOCK W/SELECTABLE DDR FREQUENCY
2
REVISION R 11/23/16




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6V49205B

Freescale P10XX and P20XX System Clock w/Selectable DDR Frequency - IDT