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8V49N211のメーカーはIntegrated Device Technologyです、この部品の機能は「Clock Generator」です。 |
部品番号 | 8V49N211 |
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部品説明 | Clock Generator | ||
メーカ | Integrated Device Technology | ||
ロゴ | |||
このページの下部にプレビューと8V49N211ダウンロード(pdfファイル)リンクがあります。 Total 30 pages
Clock Generator for Broadcom Processor
8V49N211
DATA SHEET
General Description
The 8V49N211 is a high-performance PLL-based clock generator
designed to interface with Broadcom XLP2xxx processors. The
8V49N211 has one 25MHz crystal input to generate output
frequencies to support XLP Core/DDR3, USB, SGMII/XAUI and
PCIe reference clocks in a single chip. The 8V49N211 low jitter VCO
easily meets PCI Express Gen 1, 2 and 3 requirements.
IDT’s Fourth Generation FemtoClock® NG technology has best in
class phase noise performance.
Features
• Fourth Generation FemtoClock® NG PLL technology
• Two LVCMOS clock outputs for core/DDR3 at 133.33MHz or
66.66MHz
• One LVDS clock output for USB at 100MHz
• Three LVDS clock outputs for SGMII/XAUI at 125MHz
• Five HCSL clock outputs for PCIe at 100MHz
• Crystal oscillator interface designed for 25MHz (CL = 12pF)
frequency, IDT Part #603-25-173
• PCI Express Gen 1 (2.5Gb/s), Gen 2 (5Gb/s) and Gen 3 (8Gb/s)
jitter compliant
• Full 3.3V operating supply voltage
• Lead-free (RoHS 6) packaging
• -40°C to 85°C ambient operating temperature
Pin Assignment
G ND
VS S O_A
QA1
QA0
V DDO_A
FSEL
BYPAS S
V DD
G ND
OE _1
OE _2
OE _3
OE _4
G ND
42 41 40 39 38 37 36 35 34 33 32 31 30 29
43 28
44 27
45 26
46 25
47 24
48
49 8V49N211
50
23
22
21
51 20
52 19
53 18
54 17
55 16
56 15
1 2 3 4 5 6 7 8 9 10 11 12 13 14
V DDO_C
nQC 4
QC4
nQC 3
QC3
VS S O_C
nQC 2
QC2
V DDO_C
nQC 1
QC1
nQC 0
QC0
V DDO_C
56 Lead 8mm x 8mm VFQFN
REVISION B 05/29/15
1 ©2015 INTEGRATED DEVICE TECHNOLOGY, INC.
1 Page 8V49N211 DATA SHEET
Pin Descriptions and Characteristics
Table 1. Pin Descriptions
Number
Name
Type
Description
1
GNDA
Power
Analog ground pin.
2
3, 8, 43, 51, 56
VDDA
GND
Power
Power
Analog power supply pin.
Power supply ground pins.
4
GND_XTAL
Power
XTAL ground pin.
5
6
XTAL_IN,
XTAL_OUT
Input
Parallel resonant crystal interface. XTAL_IN is the input, XTAL_OUT is
the output.
7
VDD_XTAL
Power
9
VDDO_REFOUT
Power
10
REFOUT
Output
XTAL power supply pin.
REFOUT LVCMOS output supply pin.
Reference clock output from crystal. LVCMOS/LVTTL interface levels.
11 GND_REFOUT Power
REFOUT LVCMOS output ground pin.
12
VDDD
Power
13 GNDD
Digital power supply pin.
Digital ground pin.
14
IREF
Input
HCSL current reference resistor output. An external fixed precision resistor
(475) from this pin to ground provides a reference current used for HCSL
outputs.
15, 20, 28
16, 17
18, 19
21, 22
24, 25
26, 27
VDDO_C
QC0, nQC0
QC1, nQC1
QC2, nQC2
QC3, nQC3
QC4, nQC4
Power
Output
Bank C HCSL output supply pins.
Differential output pairs. HCSL interface levels.
23
29
30, 31
VSSO_C
VDDO_C5
nQC5, QC5
Power
Power
Output
Bank C HCSL output ground pin.
Bank C LVDS QC5, nQC5 output power supply pin.
Differential output pair. HCSL interface levels.
32
33, 39
34, 35
37, 38
40, 41
VSSO_C5
VSSO_B
nQB2, QB2
nQB1, QB1
nQB0, QB0
Power
Power
Output
Bank C LVDS QC5, nQC5 output ground pin.
Bank B LVDS output ground pin.
Differential output pairs. LVDS interface levels.
36, 42
44
45
46
VDDO_B
VSSO_A
QA1
QA0
Power
Power
Output
Bank B LVDS output supply pins.
Bank A LVCMOS output ground pin.
Single-ended LVCMOS/LVTTL outputs.
47
VDDO_A
Power
Bank A LVCMOS output supply pin.
48
FSEL
Input
Pulldown Selects QAx output frequency. See “Table 3A. Frequency Select Table”.
REVISION B 05/29/15
3 CLOCK GENERATOR FOR BROADCOM PROCESSOR
3Pages 8V49N211 DATA SHEET
Table 4C. LVDS Output DC Characteristics, VDDO_B = VDDO_C5 = 3.3V ± 5%, TA = -40°C to 85°C°
Symbol Parameter
Test Conditions
Minimum Typical
VOD
VOD
VOS
VOS
Differential Output Voltage
VOD Magnitude Change
Offset Voltage
VOS Magnitude Change
247
1.25
Maximum
454
50
1.375
50
Units
mV
mV
V
mV
Table 5. Crystal Characteristics
Parameter
Mode of Oscillation
Frequency
Capacitance Loading (CL)
Equivalent Series Resistance (ESR)
Shunt Capacitance
NOTE: IDT Part #603-25-173 recommended.
Test Conditions
Minimum Typical Maximum
Fundamental
25
12 18
80
7
Units
MHz
pF
pF
REVISION B 05/29/15
6 CLOCK GENERATOR FOR BROADCOM PROCESSOR
6 Page | |||
ページ | 合計 : 30 ページ | ||
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PDF ダウンロード | [ 8V49N211 データシート.PDF ] |
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部品番号 | 部品説明 | メーカ |
8V49N211 | Clock Generator | Integrated Device Technology |