CC8520_11 Datasheet, PDF (6/18 Pages) Texas Instruments – 2.4 GHz RF SoC FOR WIRELESS DIGITAL AUDIO STREAMING

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CC8520, CC8521, CC8530 & CC8531
SWRS091D – JULY 2011
SPI INTERFACE CHARACTERISTICS
TA = 25°C and VDD = 3.3 V, unless otherwise noted.
PARAMETER
TEST CONDITION
SCLK frequency
SCLK low
SCLK high
CSN high
Minimum time CSN must be high, if brought high,
between commands (it is not necessary to bring
CSN high between commands).
CSN falling edge to
SCLK rising edge
Distance from CSN asserted until first rising edge
on SCLK.
SCLK falling edge to
CSN rising edge
Distance from last negative edge of SCLK in last
word until CSN can be de-asserted.
Inter-word spacing
Minimum distance in time from rising edge of
SCLK for last bit in word n and the rising edge of
SCLK for the first bit in word n+1.
Properly handles abutting words.
Hysteresis on SCLK
Hysteresis around trigger point of input buffer
using a Schmitt trigger
Slew rate on SCLK
Slew rate from 0.1·IOVDD to 0.9·IOVDD
MIN
0
25
25
50
25
100
50
10
TYP
100
MAX
20
UNIT
MHz
ns
ns
ns
ns
ns
ns
mV
V/ s
1 PIN DESCRIPTION
1 ^xANTN
/USBN
2 ^xANTP
/USBP
3 CSN
4 SCLK
5 MOSI
6 MISO
7 GIO1
8 GIO2
9 GIO3
10 IOVDD
CC85xx
RBIAS 30
VBAT 29
AVDD 28
AVDD 27
AVDD 26
RF_N 25
RF_P 24
AVDD 23
X0 22
X1 21
Figure 1 - CC85xx QFN-40 PIN CONFIGURATION
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