MRF24J40-I/ML Microchip Technology, MRF24J40-I/ML Datasheet - Page 62

• 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 2-58:
DS39776C-page 62
MRF24J40
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
CCAEDTH7
R/W-0
CCAEDTH<7:0>: Clear Channel Assessment (CCA) Energy Detection (ED) Mode bits
If the in-band signal strength is greater than the threshold, the channel is busy. The 8-bit value can be
mapped to a power level according to RSSI. Refer to Section 3.6 “Received Signal Strength Indicator
(RSSI)/Energy Detection (ED)”.
Default value: 0x00. Recommended value: 0x60 (approximately -69 dBm).
CCAEDTH6
R/W-0
CCAEDTH: ENERGY DETECTION THRESHOLD FOR CCA REGISTER
(ADDRESS: 0x3F)
W = Writable bit
‘1’ = Bit is set
CCAEDTH5
R/W-0
CCAEDTH4
R/W-0
Preliminary
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
CCAEDTH3
R/W-0
CCAEDTH2
R/W-0
© 2010 Microchip Technology Inc.
x = Bit is unknown
CCAEDTH1
R/W-0
CCAEDTH0
R/W-0
bit 0