CYW320OXC-3 Silicon Laboratories Inc, CYW320OXC-3 Datasheet

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CYW320OXC-3

Manufacturer Part Number
CYW320OXC-3
Description
Clock Synthesizer / Jitter Cleaner Legacy, W320-03 datasheet
Manufacturer
Silicon Laboratories Inc
Datasheet

Specifications of CYW320OXC-3

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Rev 1.0, November 25, 2006
2200 Laurelwood Road, Santa Clara, CA 95054
Features
• Compliant with Intel
• Multiple output clocks at different frequencies
• Three pairs of differential CPU outputs, up to 200 MHz
• Ten synchronous PCI clocks, three free-running
• Six 3V66 clocks
• Two 48 MHz clocks
• One reference clock at 14.318 MHz
• One VCH clock
• Spread Spectrum clocking (down spread)
• Power-down features (PCI_STOP#, CPU_STOP#
• Three Select inputs (Mode select & IC Frequency
• OE and Test Mode support
• 56-pin SSOP package and 56-pin TSSOP package
Logic Block Diagram
CPU_STOP#
PWR_DWN#
PCI_STOP#
sizer/Driver Specifications
PWR_DWN#)
Select)
PWR_GD#
SDATA
SCLK
S0:2
X1
X2
Gate
XTAL
PLL 1
PLL 2
OSC
SMBus
Logic
200 MHz Spread Spectrum Clock Synthesizer/Driver
Network
Divider
®
CK-Titan Clock Synthe-
PWR
PWR
PWR
PWR
PLL Ref Freq
PWR
/2
PWR
Control
Clock
Control
Stop
Clock
Stop
Tel:(408) 855-0555
VDD_48MHz
VDD_3V66
3V66_0
VDD_REF
REF
3V66_2:4/
66BUFF0:2
USB (48MHz)
DOT (48MHz)
VCH_CLK/ 3V66_1
VDD_CPU
CPU0:2
VDD_PCI
3V66_5/ 66IN
CPU#0:2
PCI_F0:2
PCI0:6
Benefits
• Supports next-generation Pentium
• Motherboard clock generator
• Support Multiple CPUs and a chipset
• Support for PCI slots and chipset
• Supports AGP, DRCG reference and Hub Link
• Supports USB host controller and graphic controller
• Supports ISA slots and I/O chip
• Enables reduction of electromagnetic interference
• Enables ACPI-compliant designs
• Supports up to four CPU clock frequencies
• Enables ATE and “bed of nails” testing
• Widely available, standard package enables lower cost
differential clock drivers
(EMI) and overall system cost
with Differential CPU Outputs
Fax:(408) 855-0550
66BUFF2/3V66_4
Pin Configurations
66BUFF0/3V66_2
66BUFF1/3V66_3
66IN/3V66_5
PWR_DWN#
GND_CORE
VDD_CORE
XTAL_OUT
GND_3V66
VDD_3V66
PWR_GD#
GND_REF
VDD_REF
GND_PCI
GND_PCI
VDD_PCI
VDD_PCI
XTAL_IN
PCI_F0
PCI_F1
PCI_F2
PCI6
PCI0
PCI1
PCI2
PCI3
PCI4
PCI5
SSOP & TSSOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Top View
www.SpectraLinear.com
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
®
VDD_ 48 MHz
GND_ 48 MHz
W320-03
DOT
processors using
REF
S1
S0
CPU_STOP#
CPU0
CPU#0
VDD_CPU
CPU1
CPU#1
GND_CPU
VDD_CPU
CPU2
CPU#2
MULT0
IREF
GND_IREF
S2
USB
3V66_1/VCH
PCI_STOP#
3V66_0
VDD_3V66
GND_3V66
SCLK
SDATA
Page 1 of 16

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CYW320OXC-3 Summary of contents

Page 1

MHz Spread Spectrum Clock Synthesizer/Driver Features ® • Compliant with Intel CK-Titan Clock Synthe- sizer/Driver Specifications • Multiple output clocks at different frequencies • Three pairs of differential CPU outputs 200 MHz • Ten synchronous PCI clocks, ...

Page 2

Pin Summary Name Pins REF 56 XTAL_IN 2 XTAL_OUT 3 CPU, CPU# [0:2] 44, 45, 48, 49, 51, 52 3V66_0 33 3V66_1/VCH 35 66IN/3V66_5 24 66BUFF [2:0] /3V66 21, 22, 23 [4:2] PCI_F [0: PCI [0:6] 10, ...

Page 3

Function Table CPU 3V66[0: (MHz) (MHz MHz 66 MHz 100 MHz 66 MHz 200 MHz 66 MHz 133 MHz 66 MHz 0 0 ...

Page 4

Serial Data Interface (SMBus) To enhance the flexibility and function of the clock synthesizer, a two signal SMBus interface is provided according to the SMBus specification. Through the Serial Data Interface (SDI), various device functions such as individual clock output ...

Page 5

Data Byte 1 Bit Pin# Name Bit 7 – N/A Bit 6 – N/A Bit 5 44, 45 CPU2 CPU2# Bit 4 48, 49 CPU1 CPU1# Bit 3 51, 52 CPU0 CPU0# Bit 2 44, 45 CPU2 CPU2# Bit 1 ...

Page 6

Data Byte 4 Bit Pin# Name Bit 7 -- TBD Bit 6 -- TBD Bit 5 33 3V66_0 Bit 4 35 3V66_1/VCH Bit 3 24 66IN/3V66_5 Bit 2 23 66BUFF2 Bit 1 22 66BUFF1 Bit 0 21 66BUFF0 Data Byte ...

Page 7

Maximum Ratings (Above which the useful life may be impaired. For user guide- lines, not tested.) Supply Voltage..................................................–0.5 to +7.0V Input Voltage.............................................. –0. Operating Conditions Over which Electrical Parameters are Guaranteed Parameter 3.3V ...

Page 8

Switching Characteristics Over the Operating Range Parameter Output t All Output Duty Cycle 1 t USB, REF, DOT Falling Edge Rate 3 t PCI,3V66 Falling Edge Rate 3 t 3V66[0:1] 3V66-3V66 Skew 5 t 66BUFF[0:2] 66BUFF-66BUFF Skew 5 t ...

Page 9

Definition and Application of PWRGD# Signal Vtt VRM8.5 PWRGD# CLOCK S0 GENERATOR S1 Rev 1.0, November 25, 2006 CPU PWRGD# BSEL0 3.3V 3.3V NPN 10K 10K W320-03 BSEL1 3.3V 10K GMCH 10K Page ...

Page 10

Switching Waveforms Duty Cycle Timing (Single Ended Output Duty Cycle Timing (CPU Differential Output All Outputs Rise/Fall Time OUTPUT t 2 CPU-CPU Clock Skew Host_b Host Host_b Host t 4 3V66-3V66 Clock ...

Page 11

Switching Waveforms (continued) 3V66-PCI Clock Skew 3V66 PCI t 7 CPU Clock Cycle-Cycle Jitter Host_b Host Cycle-Cycle Clock Jitter CLK [15] PWRDWN# Assertion 66BUFF PCI PCI_F (APIC) PWR_DWN# CPU CPU# 3V66 66IN USB REF Note: 15. PCI_STOP# asserted LOW. Rev ...

Page 12

PWRDWN# Deassertion 66BUFF1/GMCH 66BUFF0,2 PCI PCI_F (APIC) PWR_DWN# CPU CPU# 3V66 66IN USB REF PWRGD# Timing Diagrams GND VRM 5/12V PWRGD# VID [3:0] BSEL [1:0] PWRGD# FROM VRM PWRGD# FROM NPN VCC CPU CORE PWRGD# VCC W320 CLOCK GEN ...

Page 13

GND VRM 5/12V PWRGD# VID [3:0] BSEL [1:0] PWRGD# FROM VRM PWRGD# FROM VCC CPU CORE PWRGD# 0.2 – 0.3 ms Wait for VCC W320 CLOCK delay PWRGD# GEN State 1 State 0 CLOCK STATE OFF CLOCK VCO OFF CLOCK ...

Page 14

Layout Example +3.3V Supply FB 10 μF 0.005 μ Dale ILB1206 - 300 or 2TDKACB2012L-120 or 2 Murata BLM21B601S Ceramic Caps C1 = 10–22 µ VIA to GND plane layer ...

Page 15

... Ordering Code W320-03H W320-03HT W320-03X W320-03XT Lead-free CYW320OXC-3 CYW320OXC-3T Notes: 16. Each supply pin must have an individual decoupling capacitor. 17. All capacitors must be placed as close to the pins as is physically possible. 0.7V amplitude: R Rev 1.0, November 25, 2006 9, 15, 20, 27, 31, 36, 41 14, 26, 32, 37, 46, 50 W320-03 ...

Page 16

Package Diagrams 56-Lead Thin Shrunk Small Outline Package, Type mm) Z56 0.249[0.009 13.894[0.547] 14.097[0.555] 0.851[0.033] 0.500[0.020] 0.950[0.037] BSC While SLI has reviewed all information herein for accuracy and reliability, Spectra Linear Inc. assumes ...

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