BCM43455XKUBGT Datasheet, PDF (146/159 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
SDIO Timing
Table 58: SDIO Bus Output Timing Parameters (SDR Modes 100 MHz to 208 MHz)
Symbol
t_OP
∆t_OP
t_ODW
Minimum
0
–350
0.60
Maximum Unit
2
UI
+1550
ps
–
UI
Comments
Card output phase
Delay variation due to temp change after tuning
t_ODW = 2.88 ns @ 208 MHz
• ∆t_OP = +1550 ps for junction temperature of ∆t_OP = 90°C during operation.
• ∆t_OP = –350 ps for junction temperature of ∆t_OP = –20°C during operation.
• ∆t_OP = +2600 ps for junction temperature of ∆t_OP = –20°C to +125°C during operation.
Figure 40: ∆t_OP Consideration for Variable Data Window (SDR 104 Mode)
Data valid window
ǻtOP =
–350 ps
Sampling point after tuning
ǻtOP =
1550 ps
Data valid window
Sampling point after card junction heating
by +90°C from tuning temperature
Data valid window
Sampling point after card junction cooling
by –20°C from tuning temperature
Broadcom^®
November 5, 2015 • 43455-DS109-R
BROADCOM CONFIDENTIAL
Page 145