MRF24J40_08 Datasheet, PDF (139/152 Pages) Microchip Technology – IEEE 802.15.4™ 2.4 GHz RF Transceiver

MRF24J40
TABLE 5-4: TRANSMITTER AC CHARACTERISTICS
Typical Values: TA = 25°C, VDD = 3.3V, LO Frequency = 2.445 GHz
Parameters
Condition
Min
Typ
Max
Units
RF Carrier Frequency
Maximum RF Output Power
RF Output Power Control Range
TX Gain Control Resolution
Programmed by register
Carrier Suppression
TX Spectrum Mask for O-QPSK Offset frequency > 3.5 MHz,
Signal
at 0 dBm output power
TX EVM
2.405
—
—
—
—
-33
—
—
0
36
1.25
-30
—
13
2.480
—
—
—
—
—
—
GHz
dBm
dB
dB
dBc
dBm
%
FIGURE 5-1:
CS
EXAMPLE SPI SLAVE MODE TIMING
82
70
SCK
SDO
MSb
80
bit 6 - - - - - - 1
LSb
SDI
MSb In
bit 6 - - - - 1
LSb In
74
TABLE 5-5: EXAMPLE SPI SLAVE MODE REQUIREMENTS
Param
No.
Symbol
Characteristic
70 TSSL2SCH CS ↓ to SCK ↑ Input
71 TSCH
SCK Input High Time
Single Byte
72 TSCL
SCK Input Low Time
Single Byte
74 TSCH2DIL Hold Time of SDI Data Input to SCK Edge
75 TDOR
SDO Data Output Rise Time
76 TDOF
SDO Data Output Fall Time
78 TSCR
SCK Output Rise Time (Master mode)
80 TSCH2DOV, SDO Data Output Valid after SCK Edge
TSCL2DOV
82 TSSL2DOV SDO Data Output Valid after CS ↓ Edge
83 TSCL2SSH CS ↑ after SCK Edge
Min Max Units Conditions
50
— ns
50
— ns
50
— ns
25
— ns
—
25 ns
—
25 ns
—
25 ns
50
— ns
50
— ns
50
— ns
© 2008 Microchip Technology Inc.
Preliminary
DS39776B-page 137