EM2420-STR Ember, EM2420-STR Datasheet - Page 64

• Manufacturer Part Number: EM2420-STR
• Description: IC RF TXRX ZIGBEE 2.4GHZ 48-QLP
• Manufacturer: Ember

Specifications of EM2420-STR

• Mfg Application Notes: EM2420
• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4
• Applications: ZigBee™
• Power - Output: -3dBm
• Sensitivity: -94dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 19.7mA
• Current - Transmitting: 17.4mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-QLP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -

RXCTRL0 (0x16) – Receive control register 0
15:14
13:12
11:10
9:8
7:6
5:4
3:2
1:0
Ember Part Number: 120-0049-000D
Bit
Field Name
-
RXMIXBUF_CUR[1:0]
HIGH_LNA_GAIN[1:0]
MED_LNA_GAIN[1:0]
LOW_LNA_GAIN[1:0]
HIGH_LNA_CURRENT[1:0]
MED_LNA_CURRENT[1:0]
LOW_LNA_CURRENT[1:0]
Reset
0
1
0
2
3
2
1
1
EM2420 Datasheet
R/W
W0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved, write as 0.
RX mixer buffer bias current.
0: 690uA
1: 980uA (nominal)
2: 1.16mA
3: 1.44mA
Controls current in the LNA gain compensation branch in AGC
High gain mode.
0: Compensation disabled
1: 100 µA compensation current
2: 300 µA compensation current (Nominal)
3: 1000 µA compensation current
Controls current in the LNA gain compensation branch in AGC
Med gain mode.
Controls current in the LNA gain compensation branch in AGC
Low gain mode
Controls main current in the LNA in AGC High gain mode
0: 240 µA LNA current (x2)
1: 480 µA LNA current (x2)
2: 640 µA LNA current (x2)
3: 1280 µA LNA current (x2)
Controls main current in the LNA in AGC Med gain mode
Controls main current in the LNA in AGC Low gain mode
EM2420
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