BCM4319 Preliminary Data Sheet
USB Interface Timing Specifications
Section 15: USB Interface Timing
Specifications
USB 2.0 Electrical and Timing Parameters
Table 30: USB 2.0 Electrical and Timing Parameters
Value
Minimum Typical Maximum Unit
Parameter
Symbol Condition
Baud Rate
B
–
–
–
–
480
–
–
Mbit/s
ps
PS
Unit Interval
UI
2083
PLL Clock Generator
PLL Reference Clock Jitter Δτrφ
Peak-to-peak jitter input
–
–
–
–
–
–
10
ps
ps
μs
PLL Output Jitter
Dt
–
Peak-to-peak jitter
–
150
30
f
PLL Lock Time
Receiver—HS
Differential Input Voltage
Sensitivity
V
V
Static | V
–
- V |
IDN
300
–50
–
–
–
–
mV
mV
HSDI
IDP
Input Common Mode
Voltage Range
HSCM
a
Input Waveform Requirements
a
Input jitter tolerance
Single-ended
–0.15
40.5
0.15
49.5
100
UI
ΔτHSRX
RX Jitter Tolerance
Input Impedance
R
45
Ω
IN
Squelch Detection
V
V
Squelch detected
–
–
–
–
mV
mV
mV
mV
HSSQ
Threshold (differential)
No squelch detected
Disconnect detected
Disconnect not detected
150
625
–
Disconnect Detection
Threshold (differential)
HSDSC
525
Transmitter—HS
Output High Voltage
V
V
Static condition
Static condition
360
–10
400
0
440
10
mV
mV
HSOH
Output Low Voltage
HSOL
a
Output Waveform Requirements
a
T
T
10 to 90%
500
–
ps
ps
UI
Ω
Output Rise Time
HSR
HSF
a
10 to 90%
500
–
Output Fall Time
a
TX output jitter
Single-ended
–0.05
40.5
700
–
0.05
49.5
1100
ΔτHSTX
R
TX Jitter Performance
Output Impedance
45
–
O
Chirp-J Output Voltage
(differential)
V
HS termination disabled.
RPU connected
mV
CHIRPJ
Broadcom®
Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/Radio
Page 78
April 2, 2014 • 4319-DS05-R
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