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BCM43907 Datasheet, PDF (118/128 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
USB PHY Electrical Characteristics and Timing
USB 2.0 and USB 1.1 Electrical and Timing Parameters
Table 53 provides electrical and timing parameters for USB 2.0.
Table 53: USB 2.0 Electrical and Timing Parameters
Parameter
Baud rate
Unit interval
Receiver – HS Mode
Differential input voltage
sensitivity
Input common mode voltage
range
Receiver jitter tolerance
Input impedance
Transmitter – HS Mode
Output high voltage
Output low voltage
Output rise time
Output fall time
Transmitter jitter
Output impedance
Chirp-J output voltage
(differential)
Symbol Minimum Typical
BPS
–
UI
–
480
2083
VHSDI 300
–
VHSCM –50
–
THSRX –0.15
–
RIN
40.5
45
VHSOH 360
400
VHSOL –10
0
THSR 500
–
THSF
500
–
 THSTX –0.05
–
RO
40.5
45
VCHIRPJ 700
–
Chirp-K output voltage
(differential)
VCHIRPK –900
–
Maximum Units
–
Mbps
–
ps
Conditions
–
–
–
500
0.15
49.5
mV Static | VIDP – VIDN |
mV –
UI
–
Ω
Single ended
440
10
–
–
0.05
49.5
1100
–500
mV Static condition
mV Static condition
ps
10% to 90%
ps
90% to 10%
UI
Transmit output jitter
Ω
Single ended
mV HS termination disabled.
1.5 kΩ ± 5% pull-up
resistor connected.
mV HS termination disabled.
1.5 kΩ ± 5% pull-up
resistor connected.
Note: Refer to Section 7 of the USB 2.0 specification (www.usb.org) for more information on the
receiver eye diagram template.
Broadcom®
March 12, 2016 • 43907-DS104-R
BROADCOM CONFIDENTIAL
Page 117