SI4708-C Datasheet, PDF (7/40 Pages) Silicon Laboratories – BROADCAST FM RADIO TUNER FOR PORTABLE APPLICATIONS

Si4708/09-C
Table 5. 3-Wire Control Interface Characteristics
(V_D = V_A = 2.7 to 5.5 V, V_IO = 1.62 to 3.6 V, T_A = –20 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max Unit
SCLK Frequency
f_CLK
0
—
2.5
MHz
SCLK High Time
t_HIGH
25
—
—
ns
SCLK Low Time
t_LOW
25
—
—
ns
SDIO Input, SEN to SCLKSetup
t_S
20
—
—
ns
SDIO Input to SCLKHold
t_HSDIO
10
—
—
ns
SEN Input to SCLKHold
t_HSEN1
10
—
—
ns
SEN Input to SCLKHold
t_HSEN2
10
—
—
ns
SCLKto SDIO Output Valid
t_CDV
Read
2
—
25
ns
SCLKto SDIO Output High Z
t_CDZ
Read
2
—
25
ns
Note: When selecting 3-wire Mode, the user must ensure that a rising edge of SCLK does not occur within 300 ns before the
rising edge of RST.
SCLK 70%
30%
tS
SEN 70%
30%
tHSDIO
tS
tHIGH tLOW
tHSEN1
tHSEN2
SDIO 70%
30%
A6-A5,
A7
R/W,
A0
A4-A1
D15
D14-D1
D0
Address In
Data In
Figure 2. 3-Wire Control Interface Write Timing Parameters
SCLK 70%
30%
tS
SEN 70%
30%
tHSDIO
tS
tCDV
tHSEN1
tHSEN2
tCDZ
80%
SDIO
20%
A6-A5,
A7
R/W,
A0
A4-A1
D15
D14-D1
D0
Address In
½ Cycle Bus
Turnaround
Data Out
Figure 3. 3-Wire Control Interface Read Timing Parameters
Rev. 1.2
7