BCM4354KKWBGT Datasheet, PDF (174/192 Pages) Cypress Semiconductor – Single-Chip 5G Wi-Fi IEEE 802.11ac 2×2 MAC/ Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM4354 Data Sheet
SDIO Timing
Table 56: 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 degrees during operation
• ∆t_OP = –350 ps for junction temperature of ∆t_OP = –20 degrees during operation
• ∆t_OP = +2600 ps for junction temperature of ∆t_OP = –20 to +125 degrees during operation
Figure 43: ∆t_OP Consideration for Variable Data Window (SDR 104 Mode)
Data valid window
È´t_OP =
–350 ps
È´t_OP =
1550 ps
Sampling point after tuning
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^®
October 15, 2014 • 4354-DS109-R
BROADCOM CONFIDENTIAL
Page 173