PDIUSBP11D Ver la hoja de datos (PDF) - Philips Electronics
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PDIUSBP11D Datasheet PDF : 10 Pages
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Philips Semiconductors
Universal Serial Bus transceiver
Preliminary specification
PDIUSBP11
AC WAVEFORMS
VM = 1.5V
VX = VOL +0.3V
VY = VOH –0.3V
VOL and VOH are the typical output voltage drops that occur with the
output load. (VCC never goes below 3.0V).
2.7V
INPUT
GND
VOH
OUTPUT
VOL
VM
tPLH
50%
VM
tPHL
50%
SV00144
Waveform 1. D+/D– to VP/VM or VPO/VMO to D+/D–
2.7V
1.5V
GND
SPEED
tsu
2.7V
VM
GND
1.5V
tsu
VCR
Waveform 5. Setup for Speed
SV00147
VOH
VOL
tRISE
tFALL
90%
90%
10%
10%
Waveform 2. Rise and Fall Times
SV00186
D+
D–
VOH
VOL
VCR
tPLH
VM
VCR
tPHL
2.0V
1.0V
VCR
Waveform 3. D+/D– to RCV
SV00146
2.7V
0V
OE#
VOH
VOL
D+/D–
1.5V
tPZH
tPZL
0.5VCC
VM
1.5V
tPHZ
tPLZ
VY
VX
Waveform 4. OE# to D+/D–
0.5VCC
SV00187
D.U.T.
Test Point
25pF
Load for VM/VP and RCV
SV00149
24Ω
D.U.T.
V = 0 for tPZH, tPHZ
V = VCC for tPZL, tPLZ
Test Point
500Ω
50pF
V
+
–
Load for Enable and Disable Times
SV00150
D.U.T.
Test Point
24Ω
VCC
S1
1.5kΩ*
15kΩ
CL
CL = 50pF, Full Speed
CL = 50pF, Low Speed (Min Timing)
CL = 350pF, Low Speed (Max Timing)
* 1.5KΩ on D– (Low Speed) or D+ (Full Speed) Only
Load for D+/D–
Test
D–/LS
D+/LS
D–/FS
D+/FS
S1
close
open
open
close
SV00151
1997 Sep 16
5
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