BCM4339XKWBGT Datasheet, PDF (166/183 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM4339 Preliminary Data Sheet
SDIO/gSPI Timing
Table 57: 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 49: ∆t_OP Consideration for Variable Data Window (SDR 104 Mode)
Data valid window
È´tOP =
–350 ps
È´tOP =
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^®
November 17, 2014 • 4339-DS106-R
Page 165