BCM43907 Datasheet, PDF (119/128 Pages) Cypress Semiconductor – WICED™ IEEE 802.11 a/b/g/n SoC with an Embedded Applications Processor

BCM43907 Preliminary Data Sheet
USB PHY Electrical Characteristics and Timing
Table 54 provides electrical and timing parameters for USB 1.1.
Table 54: USB 1.1 FS/LS Electrical and Timing Parameters ^a
Value
Parameter
Symbol Minimum Typical Maximum Unit
Baud Rate
FS
B_PS
–
12
–
LS
B_PS
–
1.5
–
Unit Interval
FS
UI
–
83.33 –
LS
UI
–
666.67 –
Receiver
Differential input sensitivity V_FSDI
200
–
–
Input common mode range V_FSCM
0.8
–
2.5
Input impedance
Z_IN
300
–
–
Input high voltage
V_FSIH
2.0
–
–
Input low voltage
V_FSIL
–
–
0.8
Transmitter
Output high voltage
V_FSOH
2.8
–
–
Output low voltage
V_FSOL
–
–
0.3
Output rise/fall time for fast T_R,T_F
4
–
20
speed
Output rise/fall time for low T_R,T_F
75
–
300
speed
Fast-speed jitter
_FSTX
–2
–
2
Low-speed jitter
_LSTX
–25
–
25
Output impedance
R_O
28
–
44
a. For more details, refer to the USB 1.1 Specification.
Mbps
Mbps
ns
ns
mV
V
kΩ
V
V
V
V
ns
ns
ns
ns
Ω
Condition
–
–
–
–
Static |V_IDP – V_IDN |
–
–
Static
Static
Static
Static
10 to 90%
10 to 90%
–
–
Single ended
Broadcom^®
March 12, 2016 • 43907-DS104-R
BROADCOM CONFIDENTIAL
Page 118