TDA5235
Functional Description
Table 5
Symbol
fclock
SPI Bus Timing Parameter
Parameter
Clock frequency
Clock High time
Clock Low time
tCLK_H
tCLK_L
tsetup
Active setup time
Not active setup time
Active hold time
Not active hold time
Deselect time
tnot_setup
thold
tnot_hold
tDeselect
tSDI_setup
tSDI_hold
tCLK_SDO
tSDO_r
SDI setup time
SDI hold time
Clock low to SDO valid
SDO rise time
tSDO_f
SDO fall time
tSDO_disable
SDO disable time
2.5.6
Chip Serial Number
Every device contains a unique, preprogrammed 32-bit wide serial number. This number
can be read out from SN3, SN2, SN1 and SN0 registers via the SPI interface. The
TDA5235 always has SN0.6 set to 1 and SN0.5 set to 0.
Fuses
SN0
SN1
SN2
SN3
Fuse-
Readout-
Interface
Figure 67
Chip Serial Number
Data Sheet
94
V1.0, 2010-02-19
INFINEON [ Infineon ]
