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SI4736-C40-GUR Datasheet, PDF (10/42 Pages) Silicon Laboratories – BROADCAST AM/FM RADIO RECEIVER | |||
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Si4736/37/38/39-C40
Table 7. SPI Control Interface Characteristics
(VDD = 2.7 to 5.5 V, VIO = 1.85 to 3.6 V, TA = â20 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max Unit
SCLK Frequency
SCLK High Time
SCLK Low Time
SDIO Input, SEN to SCLKïï Setup
SDIO Input to SCLKïï Hold
SEN Input to SCLKï¯ï Hold
SCLKï¯ï to SDIO Output Valid
SCLKï¯ï to SDIO Output High Z
SCLK, SEN, SDIO, Rise/Fall time
fCLK
tHIGH
tLOW
tS
tHSDIO
tHSEN
tCDV
tCDZ
tR, tF
Read
Read
0
â
2.5
MHz
25
â
â
ns
25
â
â
ns
15
â
â
ns
10
â
â
ns
5
â
â
ns
2
â
25
ns
2
â
25
ns
â
â
10
ns
Note: When selecting SPI 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%
SEN 70%
30%
tS
tS
tR
tF
tHIGH
tLOW
tHSDIO
tHSEN
SDIO 70%
30%
C7
C6âC1
C0
D7
D6âD1
D0
Control Byte In
8 Data Bytes In
Figure 6. SPI Control Interface Write Timing Parameters
SCLK 70%
30%
SEN 70%
30%
SDIO 70%
30%
tS
tS
C7
C6âC1
tCDV
tHSDIO
C0
D7
tHSEN
D6âD1
tCDZ
D0
Control Byte In
Bus
Turnaround
16 Data Bytes Out
(SDIO or GPO1)
Figure 7. SPI Control Interface Read Timing Parameters
10
Rev. 1.0
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