MRF24J40-I/ML Microchip Technology, MRF24J40-I/ML Datasheet - Page 60

• Manufacturer Part Number: MRF24J40-I/ML
• Description: IC TXRX IEEE/ZIGBEE 2.4GHZ 40QFN
• Manufacturer: Microchip Technology

Specifications of MRF24J40-I/ML

• Package / Case: 40-QFN
• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4
• Applications: ISM, ZigBee™
• Power - Output: 0dBm
• Sensitivity: -95dBm
• Voltage - Supply: 2.4 V ~ 3.6 V
• Current - Receiving: 18mA
• Current - Transmitting: 18mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Number Of Receivers: 1
• Number Of Transmitters: 1
• Wireless Frequency: 2.4 GHz
• Interface Type: 4 Wire SPI
• Noise Figure: 8 dB
• Output Power: + 0 dBm
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: 85 C
• Mounting Style: SMD/SMT
• Maximum Supply Current: 22 mA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

REGISTER 2-54:
REGISTER 2-55:
DS39776C-page 60
MRF24J40
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-4
bit 3-1
bit 0
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-6
bit 5-2
bit 1-0
PREVALIDTH3 PREVALIDTH2 PREVALIDTH1 PREVALIDTH0 PREDETTH2
CCAMODE1 CCAMODE0 CCACSTH3
R/W-0
R/W-1
CCAMODE<1:0>: Clear Channel Assessment (CCA) Mode bits
11 = CCA Mode 3: Carrier sense with energy above threshold. CCA shall report a busy medium only
10 = CCA Mode 1: Energy above threshold. CCA shall report a busy medium upon detecting any
01 = CCA Mode 2: Carrier sense only. CCA shall report a busy medium only upon the detection of a
00 = Reserved
CCACSTH<3:0>: Clear Channel Assessment (CCA) Carrier Sense (CS) Threshold bits
1111 =
1110 = Recommended value
1101 =
•
•
•
0010 = (default)
0001 =
0000 =
Reserved: Maintain as ‘0’
PREVALIDTH<3:0>: Preamble Search Energy Valid Threshold bits
1101 = IEEE 802.15.4™ (250 kbps) optimized value (default)
0011 = Turbo mode (625 kbps) optimized value
PREDETTH<2:0>: Preamble Search Energy Detection Threshold bits
Default value: 0x4.
Reserved: Maintain as ‘0’
R/W-1
R/W-1
upon the detection of a signal with the modulation and spreading characteristics of IEEE 802.15.4™
with energy above the Energy Detection (ED) threshold.
energy above the Energy Detection (ED) threshold.
signal with the modulation and spreading characteristics of IEEE 802.15.4. This signal may be
above or below the Energy Detection (ED) threshold (default).
BBREG2: BASEBAND 2 REGISTER (ADDRESS: 0x3A)
BBREG3: BASEBAND 3 REGISTER (ADDRESS: 0x3B)
r = reserved
W = Writable bit
‘1’ = Bit is set
r = reserved
W = Writable bit
‘1’ = Bit is set
R/W-0
R/W-0
CCACSTH2
R/W-0
Preliminary
R/W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
CCATCSH1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
R/W-1
CCACSTH0
R/W-0
PREDETTH1
R/W-0
© 2010 Microchip Technology Inc.
x = Bit is unknown
R/W-0
x = Bit is unknown
PREDETTH0
r
R/W-0
R/W-0
r
R/W-0
bit 0
r
bit 0