EM2420-STR Ember, EM2420-STR Datasheet - Page 18

• 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: -

Ember Part Number: 120-0049-000D
(50 Ohm)
Antenna
Figure 3. Typical application circuit with discrete balun for single-ended operation
C62
Ref
C42
C61
C62
C71
C81
C381
C391
L61
L62
L81
R451
XTAL
C61
C71
L81
C81
L62
L61
Table 1. Overview of external components
Description
Voltage regulator load capacitance
Discrete balun and match, see page 51
DC block to antenna and match
Front-end bias decoupling and match, see page 51
Discrete balun and match, see page 51
16MHz crystal load capacitor, see page 50
16MHz crystal load capacitor, see page 50
DC bias and match, see page 51
DC bias and match, see page 51
Discrete balun and match, see page 51
Precision resistor for current reference generator
16MHz crystal, see page 50
12
1
2
3
4
5
6
7
8
9
10
11
VCO_GUARD
AVDD_VCO
AVDD_PRE
AVDD_RF1
GND
RF_P
RF_N
GND
AVDD_SW
TXRX_SWITCH
NC
NC
EM2420 Datasheet
R451
Power
supply
3.3 V
QLP48
7x7
C42
C391
XTAL
C381
DVDD_RAM
DVDD1.8
DVDD3.3
FIFOP
SCLK
FIFO
CSn
CCA
SFD
NC
SO
SI
EM2420
36
35
34
33
32
31
30
29
28
27
26
25
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