MRF89XAM9A_12 Datasheet, PDF (27/36 Pages) Microchip Technology – 915 MHz Ultra Low-Power Sub-GHz Transceiver Module

MRF89XAM9A
TABLE 4-6: TRANSMITTER AC CHARACTERISTICS⁽¹⁾
Symbol
Description
Min Typ Max
RFOP RF Output Power, Programmable — +12.5
—
with 8 Steps of typ. 3 dB
—
-8.5
—
PN
Phase Noise
—
-112
—
TXSP
Transmitted Spurious
—
—
-47
Tx2
Tx3
Tx4
Txn
FSKDEV
TSTWF
Second Harmonic
Third Harmonic
Fourth Harmonic
Harmonics above Tx4
FSK Deviation
Transmitter Wake-up Time
—
—
-40
±33 ±55 ±200
—
120
500
Unit
dBm
dBm
Condition
Maximum power setting
Minimum power setting
dBc/Hz
dBc
Measured with a 600 kHz
offset at the transmitter output
At any offset between 200 kHz
and 600 kHz, unmodulated
carrier, f_dev = 50 kHz
No modulation, see Note⁽²⁾
dBm
kHz
Programmable
µs
From FS to Tx ready
TSTWS
Transmitter Wake-up Time
—
600
900
µs
From Stand-by to Tx ready
Note 1: Guaranteed by design and characterization.
2: Transmitter in-circuit performance with SAW filter and crystal.
4.1 Timing Specification and Diagram
TABLE 4-7: SPI TIMING SPECIFICATION^(1,2)
Parameter
Min
Typ
Max
Unit
Condition
SPI Configure Clock Frequency
—
—
6
MHz
—
SPI Data Clock Frequency
—
—
1
MHz
—
Data Hold and Setup Time
2
—
—
µs
—
SDI Setup Time for SPI Configure
250
—
—
ns
—
SDI Setup Time for SPI Data
312
—
—
ns
—
CSCON Low to SCK Rising Edge;
500
—
—
ns
—
SCK Falling Edge to CSCON High
CSDATA Low to SCK Rising Edge;
625
—
—
ns
—
SCK Falling Edge to CSDATA High
CSCON Rising to Falling Edge
500
—
—
ns
—
CSDATA Rising to Falling Edge
625
—
—
ns
—
Note 1: Typical Values: TA = 25°C, VIN = 3.3V, Crystal Frequency = 12.8 MHz, unless otherwise specified.
2: Negative current is defined as the current sourced by the pin.
 2011-2012 Microchip Technology Inc.
Preliminary
DS75017B-page 27