參數(shù)資料
型號(hào): PDIUSBH11NB
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Plug In Relay Switch Function:4PDT; Contact Carry Current:15A; Coil Voltage AC Max:120V; Mounting Type:Socket; Contact Carrying Power:0.9W; Contact Rating:3A; Relay Type:General Purpose RoHS Compliant: Yes
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PDIP32
封裝: 0.400 INCH, SHRINK, PLASTIC, SOT-232-1, DIP-32
文件頁數(shù): 21/26頁
文件大小: 146K
代理商: PDIUSBH11NB
Philips Semiconductors
Product specification
PDIUSBH11
Universal Serial Bus Hub
1997 Aug 01
21
CROSSOVER
POINT
CROSSOVER
POINT
CROSSOVER
POINT
SV00514
CROSSOVER
POINT
Hub Delay
Downstream
T
HDD
Hub Delay
Upstream
T
HDD
DOWNSTREAM
DIFFERENTIAL
DATA
UPSTREAM-
DIFFERENTIAL
DATA
UPSTREAM
DIFFERENTIAL
DATA
DOWNSTREAM-
DIFFERENTIAL
DATA
V
DD
V
SS
V
SS
A. DOWNSTREAM HUB DELAY
B. UPSTREAM HUB DELAY
SOP DISTORTION
T
SOP
= T
HDD
(SOP) – T
HDD
(NEXT J)
LOW SPEED TIMINGS ARE DETERMINED IN THE SAME WAY FOR:
T
LHDD
AND T
LSOP
Figure 2. Hub Differential Data Delay and SOP Distortion
UPSTREAM-
DIFFERENTIAL
DATA
DOWNSTREAM-
DIFFERENTIAL
DATA
V
DD
V
SS
V
SS
A. DOWNSTREAM EOP DELAY
B. UPSTREAM EOP DELAY
EOP DELAY
T
EOPD
= T
EOP–
EOP DELAY RELATIVE TO T
HDD
T
EOPDR
= T
EOPD
T
HDD
EOP SKEW
T
HESK
= T
EOP+
– T
EOP–
LOW SPEED TIMINGS ARE DETERMINED IN THE SAME WAY FOR:
T
LEOPD
, T
LEOPDR
, AND T
LHESK
T
EOP+
T
EOP–
CROSSOVER
POINT
EXTENDED
CROSSOVER
POINT
EXTENDED
UPSTREAM
END OF CABLE
DOWNSTREAM
PORT
T
EOP+
T
EOP–
CROSSOVER
POINT
EXTENDED
CROSSOVER
POINT
EXTENDED
SV00515
Figure 3. Hub EOP Delay and EOP Skew
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