參數(shù)資料
型號(hào)： ICS950818
英文描述： Frequency Generator with 200MHz Differential CPU Clocks
中文描述： 頻率發(fā)生器200MHz的CPU的時(shí)鐘差分
文件頁(yè)數(shù)： 3/20頁(yè)
文件大?。?/td> 165K
代理商： ICS950818
3
ICS950818
0825F—11/19/03
Pin Description (Continued)
PIN # PIN NAME
25
SDATA
26
SCLK
27
GND
28
VDD3V66
29
PCICLK10
Power Supply
PIN TYPE
I/O
DESCRIPTION
Data pin for I2C circuitry 5V tolerant
Clock pin of I2C circuitry 5V tolerant
Ground pin.
Power pin for the 3V66 clocks.
PCI clock output.
Stops all PCICLKs besides the PCICLK_F clocks at logic 0 level, when input
low
3.3V 66.66MHz clock output / 48MHz VCH clock output.
Ground pin.
Power pin for the 48MHz output.3.3V
48MHz clock output.
48MHz clock output.
Frequency select pin.
IN
PWR
PWR
OUT
30
PCI_STOP#
IN
31
32
33
34
35
36
3V66_1/VCH_CLK
GND
VDD48
48MHz_DOT
48MHz_USB
FS0
OUT
PWR
PWR
OUT
OUT
IN
37
IREF
OUT
This pin establishes the reference current for the differential current-mode
output pairs. This pin requires a fixed precision resistor tied to ground in
order to establish the appropriate current. 475 ohms is the standard value.
38
CPUCLKC1
OUT
Complimentary clock of differential pair CPU outputs. These are current
mode outputs. External resistors are required for voltage bias.
True clock of differential pair CPU outputs. These are current mode
outputs. External resistors are required for voltage bias.
Supply for CPU clocks, 3.3V nominal
Ground pin.
Complimentary clock of differential pair CPU outputs. These are current
mode outputs. External resistors are required for voltage bias.
True clock of differential pair CPU outputs. These are current mode
outputs. External resistors are required for voltage bias.
Supply for CPU clocks, 3.3V nominal
Stops all CPUCLK besides the free running clocks
Frequency select pin.
14.318 MHz reference clock.
Ref, XTAL power supply, nominal 3.3V
39
CPUCLKT1
OUT
40
41
VDDCPU
GND
PWR
PWR
42
CPUCLKC0
OUT
43
CPUCLKT0
OUT
44
45
46
47
48
VDDCPU
CPU_STOP#
FS1
REF
VDDREF
PWR
IN
IN
OUT
PWR
VDD
48
11
15, 28
22
33
GND
3
7
16, 27
23
32
41
41
Xtal, Ref
PCICLK outputs
3V66
Master clock, CPU Analog
48MHz, Fix Digital, Fix Analog
Inputs
CPUCLK clocks
40, 44
Pin Number
Description
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ICS950818YG-T 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator with 200MHz Differential CPU Clocks
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