参数资料
型号: ICS932S200BGT
厂商: IDT, Integrated Device Technology Inc
文件页数: 1/13页
文件大小: 0K
描述: IC FREQ TIMING GENERATOR 56TSSOP
标准包装: 2,000
类型: 时钟/频率发生器
PLL:
主要目的: 服务器
输入: 晶体
输出: 时钟
电路数: 1
比率 - 输入:输出: 1:20
差分 - 输入:输出: 无/无
频率 - 最大: 133MHz
电源电压: 3.135 V ~ 3.465 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 56-TFSOP(0.240",6.10mm 宽)
供应商设备封装: 56-TSSOP
包装: 带卷 (TR)
其它名称: 932S200BGT
General Description
Features
ICS932S200
Integrated
Circuit
Systems, Inc.
0427D—12/15/08
Block Diagram
Frequency Timing Generator for Dual Server/Workstation Systems
Pin Configuration
56-pin 300 mil SSOP
56-pin 240 mil TSSOP
Generates the following system clocks:
- 6 CPU clocks ( 2.5V, 100/133MHz)
- 6 PCI clocks, including 1 free running(3.3V,
33MHz)
- 3 IOAPIC clocks (2.5V, 16.67MHz)
- 2 Fixed frequency 66MHz clocks(3.3V, 66MHz)
- 2 REF clocks(3.3V, 14.318MHz)
- 1 USB clock (3.3V, 48MHz)
Efficient power management through PD#,
CPU_STOP# and PCI_STOP#.
0.5% typical down spread modulation on CPU, PCI,
IOAPIC and 3V66 output clocks.
Uses external 14.318MHz crystal.
The ICS932S200 is a dual CPU clock generator for
serverworks HE-T, HE-SL-T, LE-T chipsets for P III type
processors in a Dual-CPU system. Single ended CPU
clocks provide faster than 1.5V/ns transition times by
parallel connection of 2 CPU pins to each processor.
Spread Spectrum may be enabled by driving the
SPREAD# pin active. Spread spectrum typically
reduces system EMI by 8dB to 10dB. This simplifies
EMI qualification without resorting to board design
iterations or costly shielding. The ICS932S200 employs
a proprietary closed loop design, which tightly controls
the percentage of spreading over process and
temperature variations.
Key Specification:
CPU Output Jitter: 150ps
IOAPIC Output Jitter: 250ps
3V66, PCI Output Jitter: 250ps
CPU Output Skew: <175ps
PCI Output Skew: <500ps
3V66 Output Skew <250ps
IOAPIC Output Skew <250ps
CPU to 3V66 Output Offset: 0 - 1.5ns (CPU leads)
CPU to PCI Output Offset: 1.5 - 4.0ns (CPU leads)
CPU to APIC Output Offset: 1.5 - 4.0ns (CPU
leads)
PCICLK_F
PLL2
PLL1
Spread
Spectrum
48MHz
CPUCLK (5:0)
IOAPIC (2:0)
3V66 (1:0)
PCICLK (4:0)
5
3
2
6
2
X1
X2
XTAL
OSC
CPU
DIVDER
IOAPIC
DIVDER
3V66
DIVDER
PCI
DIVDER
Stop
PD#
PCI_STOP#
CPU_STOP#
SPREAD#
SEL 133/100#
SEL0
SEL1
Control
Logic
Config.
Reg.
REF (1:0)
GND
REF0
REF1
VDD
X1
X2
GND
PCICLK_F
VDD
PCICLK0
PCICLK1
GND
PCICLK2
PCICLK3
VDD
PCICLK4
GND
VDD
GND
3V66_0
3V66_1
VDD
SEL 133/100#
VDDL
IOAPIC2
IOAPIC1
IOAPIC0
GND
VDDL
CPUCLK5
CPUCLK4
GND
VDDL
CPUCLK3
CPUCLK2
GND
VDDL
CPUCLK1
CPUCLK0
GND
VDD
GND
PCI_STOP#
CPU_STOP#
PD#
SPREAD#
SEL1
SEL0
VDD
48MHz
GND
ICS932S200
1
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5
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28
56
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