MRF49XA-I/ST Microchip Technology, MRF49XA-I/ST Datasheet - Page 83

• Manufacturer Part Number: MRF49XA-I/ST
• Description: IC RF TXRX 433/868/915 16-TSSOP
• Manufacturer: Microchip Technology

Specifications of MRF49XA-I/ST

• Package / Case: 16-TSSOP
• Frequency: 433MHz, 868MHz, 915MHz
• Data Rate - Maximum: 256kbps
• Modulation Or Protocol: FHSS, FSK
• Applications: Home / Industrial Automation, Remote Access, Security Alarms
• Power - Output: 7dbm
• Sensitivity: -110dBm
• Voltage - Supply: 2.2 V ~ 3.8 V
• Current - Receiving: 11mA
• Current - Transmitting: 15mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Number Of Receivers: 1
• Number Of Transmitters: 2
• Wireless Frequency: 433 MHz to 915 MHz
• Output Power: + 7 dBm
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Modulation: FHSS, FSK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 579-MRF49XA-1/ST

TABLE 5-7:
Note 1:
© 2009 Microchip Technology Inc.
Transmitter Switch On Time
Receiver Switch On Time
Transmitter to Receiver Switch
Time
Receiver to Transmitter Switch
Time
Crystal Load Capacitance (See
Crystal Selection Guide)
Crystal Oscillator Start-up Time
Internal POR Time-out
Wake-up Timer Clock Accuracy
Digital Input Capacitance
Digital Output Rise/Fall Time
2:
3:
Typical Values: T
The crystal oscillator start-up time depends on the capacitance seen by the oscillator. Low capacitance and
low-ESR crystal are recommended with low parasitic PCB layout design.
During the Power-on Reset period, commands are not accepted by the chip. In case of Software Reset (see
WTSREG (Register 2-14)), the Reset time-out is typically 0.25 ms.
Parameters
OTHER TIMING PARAMETERS AC CHARACTERISTICS
A
= 25°C, V
Synthesizer off, crystal oscillator
on with 10 MHz step
Synthesizer off, crystal oscillator
on with 10 MHz step
Synthesizer and crystal oscillator
on during TX/RX change with
10 MHz step
Synthesizer and crystal oscillator
on during RX/TX change with
10 MHz step
Programmable in 0.5 pF steps,
tolerance ±10%
Default capacitance bank setting,
crystal ESR < 50Ω. Crystal load
capacitance = 16 pF.
After V
final value
Crystal oscillator must be enabled
to ensure proper calibration at the
start-up
15 pF pure capacitive load
DD
DD
= 3.3V.
(2)
has reached 90% of the
(3)
Condition
Preliminary
—
(2)
Min
8.5
—
—
—
—
—
—
—
—
—
(1)
Typ
250
250
150
150
±10
—
—
—
—
2
MRF49XA
Max
100
16
10
—
—
—
—
—
DS70590B-page 81
7
2
Unit
ms
ms
pF
pF
μs
μs
μs
μs
ns
%