EM2420-STR Ember, EM2420-STR Datasheet - Page 52

• 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: -

The
transmit test modes for performance
evaluation. The test mode descriptions in
the following sections requires that the
chip is first reset, the crystal oscillator is
enabled using the SXOSCON command
strobe and that the crystal oscillator has
stabilized.
Unmodulated carrier
An
transmitted
MDMCTRL1.TX_MODE to 2, writing 0x1800
to the DACTST register and issuing a
STXON command strobe. The transmitter
is then enabled while the transmitter I/Q
DACs are overridden to static values. An
Date:
Ember Part Number: 120-0049-000D
-10
-20
-30
-40
-50
-60
-70
-80
-90
-97
3
0
Ref Lvl
Ref Lvl
EM2420
Center 2.45 GHz
unmodulated
1AVG
3 dBm
3 dBm
23.OCT.2003
can be set into different
by
carrier
21:38:33
Figure 29. Single carrier output
may
setting
EM2420 Datasheet
be
200 kHz/
unmodulated carrier will then be available
on the RF output pins.
A plot of the single carrier output spectrum
from the
below.
RBW
VBW
SWT
10 kHz
10 kHz
50 ms
EM2420
is shown in Figure 29
RF Att
Unit
EM2420
Span 2 MHz
30 dB
Page 52 of 84
dBm
1SA
A