参数资料
型号: ICS9DB803DGT
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟及定时
英文描述: 9DB SERIES, PLL BASED CLOCK DRIVER, 8 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO48
封装: 6.10 MM, 0.50 MM PITCH, MO-153, TSSOP-48
文件页数: 7/20页
文件大小: 251K
代理商: ICS9DB803DGT
IDTTM/ICSTM
Eight Output Differential Buffer for PCIe Gen 2
ICS9DB803D
REV B
08/23/07
ICS9DB803D
Eight Output Differential Buffer for PCIe for Gen 2
15
The PD# pin cleanly shuts off all clocks and places the device into a power saving mode. PD# must be asserted before shutting
off the input clock or power to insure an orderly shutdown. PD is asynchronous active-low input for both powering down the
device and powering up the device. When PD# is asserted, all clocks will be driven high, or tri-stated (depending on the PD#
drive mode and Output control bits) before the PLL is shut down.
PD#, Power Down
When PD# is sampled low by two consecutive rising edges of DIF#, all DIF outputs must be held High, or tri-stated (depending
on the PD# drive mode and Output control bits) on the next High-Low transition of the DIF# outputs. When the PD# drive mode
bit is set to ‘0’, all clock outputs will be held with DIF driven High with 2 x IREF and DIF# tri-stated. If the PD# drive mode bit is
set to ‘1’, both DIF and DIF# are tri-stated.
PD# Assertion
Power-up latency is less than 1 ms. This is the time from de-assertion of the PD# pin, or VDD reaching 3.3V, or the time from
valid SRC_IN clocks until the time that stable clocks are output from the device (PLL Locked). If the PD# drive mode bit is set
to ‘1’, all the DIF outputs must driven to a voltage of >200 mV within 300 us of PD# de-assertion.
PD# De-assertion
PWRDWN#
DIF
DIF#
PWRDWN#
DIF
DIF#
Tstable
<1mS
Tdrive_PwrDwn#
<300uS, >200mV
Note: Polarities in timing diagrams are shown OE_INV = 0. They are similar to OE_INV = 1.
相关PDF资料
PDF描述
ICS9FG104YGLFT 400 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28
ICS9FG104YGT 400 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28
ICS9FG107YGT 400 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
ICS9FG107YGLNT 400 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
ICS9FG107YFT 400 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
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