PDIUSBH11 Datasheet, PDF (20/26 Pages) NXP Semiconductors – Universal Serial Bus Hub

Philips Semiconductors
Universal Serial Bus Hub
AC CHARACTERISTICS (AI/O PINS. LOW SPEED)
SYMBOL
PARAMETER
TEST CONDITIONS
Driver Characteristics:
C_L = 50pF and 350pF;
R_pu = 1.5KΩ on D– to V_CC
Transition time:
T_LR
Rise time
T_LF
Fall tIme
V_LCRS Output signal crossover voltage
Driver Timings:
T_LEOPT Source EOP width
T_LDEOP Differential data to EOP transition skew
Receiver Timings:
T_LEOPR1
T_LEOPR2
EOP width at receiver
Must reject as EOP
Must accept
Hub Timings:
T_LHDD
T_LSOP
T_LEOPDR
T_LHESK
Hub differential data delay
Data bit width distortion after SOP
Hub EOP delay relative to T_HDD
Hub EOP output width skew
Between 10% and 90%
C_L = 50pF
C_L = 350pF
C_L = 50pF
C_L = 350pF
Figure 1
Figure 1
Figure 1
C_L = 50pF and 350pF;
R_pu = 1.5KΩ on D– to V_CC
Figure 2
Figure 2
Figure 3
Figure 3
Product specification
PDIUSBH11
LIMITS
MIN
MAX
UNIT
75
300
ns
75
300
1.3
2.0
V
1.25
1.50
ns
–40
100
ns
330
ns
675
300
ns
–65
45
ns
0
200
ns
–300
+300
ns
T_PERIOD
DIFFERENTIAL
DATA LINES
CROSSOVER
POINT
CROSSOVER
POINT EXTENDED
DIFFERENTIAL DATA TO
SEO/EOP SKEW
N* T_PERIOD + T_DEOP
SOURCE EOP WIDTH: T_EOPT
RECEIVER EOP WIDTH: T_EOPR1, T_EOPR2
Figure 1. Differential Data to EOP Transition Skew and EOP Width
SV00513
1997 Aug 01
20