MRF89XAT-I/MQ Microchip Technology, MRF89XAT-I/MQ Datasheet - Page 64
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MRF89XAT-I/MQ
Manufacturer Part Number
MRF89XAT-I/MQ
Description
RF ISM BAND TXRX 32 QFN
Manufacturer
Microchip Technology
Series
-r
Datasheet
1.MRF89XA-IMQ.pdf
(142 pages)
Specifications of MRF89XAT-I/MQ
Frequency
863MHz ~ 870MHz, 902MHz ~ 928MHz, 950MHz ~ 960MHz
Data Rate - Maximum
200 kbps
Modulation Or Protocol
FSK, OOK
Applications
ISM
Power - Output
12.5dBm
Sensitivity
-113dBm
Voltage - Supply
2.1 V ~ 3.6 V
Current - Receiving
3mA
Current - Transmitting
25mA
Data Interface
PCB, Surface Mount
Memory Size
*
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Rf Ic Case Style
QFN
No. Of Pins
32
Svhc
No SVHC (20-Jun-2011)
Rohs Compliant
Yes
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
MRF89XAT-I/MQTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MRF89XAT-I/MQ
Manufacturer:
MICROCHIP
Quantity:
12 000
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3.3.6
3.3.6.1
In OOK mode, the PA ramp times can be accurately
controlled
(PACONREG<4:3>). These bits directly control the slew
rate of the PARS pin.
TABLE 3-2:
FIGURE 3-4:
DS70622B-page 64
MRF89XA
PARC<1:0>
00
01
10
11
POWER AMPLIFIER
Rise and Fall Time Control
through
POWER AMPLIFIER
RISE/FALL TIMES
PA TIMING CONTROL
8.5 µs
t
15 µs
23 µs
PARS
3 µs
the
PARS
PA Output
Power
DATA
[V]
PARC<1:0>
60 dB
95%
(rise / fall)
20 / 10 µs
2.5 / 2 µs
10 / 6 µs
5 / 3 µs
t
PAOUT
t PARS
t PA_OUT
Preliminary
bits
3.3.7
The registers associated with Transmit mode are:
• GCONREG (Register 2-1)
• DMODREG (Register 2-2)
• FDEVREG (Register 2-3)
• BRSREG (Register 2-4)
• R1CREG (Register 2-7)
• P1CREG (Register 2-8)
• S1CREG (Register 2-9)
• R2CREG (Register 2-10)
• P2CREG (Register 2-11)
• S2CREG (Register 2-12)
• PACREG (Register 2-13)
• FTXRXIREG (Register 2-14)
• FTPRIREG (Register 2-15)
During the Transmit mode of MRF89XA, the Shift reg-
ister takes bytes from the FIFO and outputs them seri-
ally (MSb first) at the programmed bit rate to the
modulator. When the transmitter is enabled, it starts
sending out data from the Shift register with respect to
the set bit rate. After power-up and with the Transmit
registers enabled, the transmitter preloads the FIFO
with preambles before sending the actual data based
on the mode of operation. Figure 3-4 illustrates the PA
Control Timing.
t PARS
t PA_OUT
60 dB
95%
TRANSMIT MODE REGISTERS
© 2010 Microchip Technology Inc.
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