BCM43455XKUBGT Datasheet, PDF (150/159 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/ Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM43455 Preliminary Data Sheet
PCI Express Interface Parameters
Table 61: PCI Express Interface Parameters (Cont.)
Parameter
Symbol
Comments
Minimum Typical Maximum Unit
RX detection voltage VTX-RCV-DETECT
swing
The amount of voltage –
change allowed during
receiver detection.
TX AC peak common- VTX-CM-AC-PP
mode voltage
(5 GT/s)
TX AC common mode –
voltage (5 GT/s)
TX AC peak common- VTX-CM-AC-P
mode voltage
(2.5 GT/s)
TX AC common mode –
voltage (2.5 GT/s)
Absolute delta of DC VTX-CM-DC-ACTIVE- Absolute delta of DC 0
common-model
IDLE-DELTA
common-model voltage
voltage during L0 and
during L0 and electrical
electrical idle
idle.
–
600
mV
–
100
mV
–
20
mV
–
100
mV
Absolute delta of DC
common-model
voltage between D+
and D-
VTX-CM-DC-LINE-
DELTA
DC offset between D+ 0
and D-
–
25
mV
Electrical idle
VTX-IDLE-DIFF-AC-p Peak-to-peak voltage 0
differential peak output
voltage
–
20
mV
TX short circuit
current
ITX-SHORT
Current limit when TX –
output is shorted to
ground.
–
90
mA
DC differential TX
termination
ZTX-DIFF-DC
Low impedance defined 80
during signaling
(parameter is captured
for 5.0 GHz by RLTX-
DIFF)
–
120
Ω
Differential
return loss
RLTX-DIFF
Differential
return loss
10 (min.) –
–
dB
for 0.05:
1.25 GHz
8 (min.) for
1.25:
2.5 GHz
Common-mode
return loss
RLTX-CM
Common-mode return 6
loss
–
–
dB
TX eye width
TTX-EYE
Minimum TX
eye width
0.75
–
–
UI
Broadcom^®
November 5, 2015 • 43455-DS109-R
BROADCOM CONFIDENTIAL
Page 149