Microchip Technology AC164138-1 Data Sheet

Page of 34
© 2010 Microchip Technology Inc.
Preliminary
DS70651A-page 25
MRF89XAM8A
TABLE 4-6:
TRANSMITTER AC CHARACTERISTICS
(1)
 
Symbol
Description
Min
Typ
Max
Unit
Condition
RFOP
RF Output Power, Programmable 
with 8 Steps of typ. 3 dB
+12.5
dBm
Maximum power setting
-8.5
dBm
Minimum power setting
PN
Phase Noise
-112
dBc/Hz
Measured with a 600 kHz 
offset at the transmitter output
TXSP
Transmitted Spurious
-47
dBc
At any offset between 200 kHz 
and 600 kHz, unmodulated 
carrier, f
dev
 = 50 kHz
Tx2
Second Harmonic
-40
dBm
No modulation, see Note
(2)
Tx3
Third Harmonic
Tx4
Fourth Harmonic
Txn
Harmonics above Tx4
FSKDEV
FSK Deviation
±33
±55
±200
kHz
Programmable
TSTWF
Transmitter Wake-up Time
120
500
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.