PDIUSBP11 Datasheet, PDF (5/10 Pages) NXP Semiconductors – Universal Serial Bus transceiver

Philips Semiconductors
Universal Serial Bus transceiver
Preliminary specification
PDIUSBP11
AC WAVEFORMS
V_M = 1.5V
V_X = V_OL +0.3V
V_Y = V_OH –0.3V
V_OL and V_OH are the typical output voltage drops that occur with the
output load. (V_CC never goes below 3.0V).
2.7V
INPUT
GND
V_OH
OUTPUT
V_OL
V_M
t_PLH
50%
V_M
t_PHL
50%
SV00144
Waveform 1. D+/D– to VP/VM or VPO/VMO to D+/D–
2.7V
1.5V
GND
SPEED
t_su
2.7V
V_M
GND
1.5V
t_su
V_CR
Waveform 5. Setup for Speed
SV00147
V_OH
V_OL
t_RISE
t_FALL
90%
90%
10%
10%
Waveform 2. Rise and Fall Times
SV00186
D+
D–
V_OH
V_OL
V_CR
t_PLH
V_M
V_CR
t_PHL
2.0V
1.0V
V_CR
Waveform 3. D+/D– to RCV
SV00146
2.7V
0V
OE#
V_OH
V_OL
D+/D–
1.5V
t_PZH
t_PZL
0.5V_CC
V_M
1.5V
t_PHZ
t_PLZ
V_Y
V_X
Waveform 4. OE# to D+/D–
0.5V_CC
SV00187
D.U.T.
Test Point
25pF
Load for VM/VP and RCV
SV00149
24Ω
D.U.T.
V = 0 for t_PZH, t_PHZ
V = V_CC for t_PZL, t_PLZ
Test Point
500Ω
50pF
V
+
–
Load for Enable and Disable Times
SV00150
D.U.T.
Test Point
24Ω
V_CC
S1
1.5kΩ*
15kΩ
C_L
C_L = 50pF, Full Speed
C_L = 50pF, Low Speed (Min Timing)
C_L = 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