Data Sheet
Table Of Contents
- 1. Feature List
- 2. Ordering Information
- 3. System Overview
- 4. Electrical Characteristics
- 4.1 Absolute Maximum Ratings
- 4.2 General Operating Conditions
- 4.3 MCU Current Consumption with 3 V Supply
- 4.4 Radio Current Consumption with 3 V Supply
- 4.5 RF Transmitter General Characteristics for the 2.4 GHz Band
- 4.6 RF Receiver General Characteristics for the 2.4 GHz Band
- 4.7 RF Receiver Characteristics for 802.15.4 DSSS-OQPSK in the 2.4 GHz Band
- 4.8 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 1 Mbps Data Rate
- 4.9 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 2 Mbps Data Rate
- 4.10 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 500 kbps Data Rate
- 4.11 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 125 kbps Data Rate
- 4.12 High-Frequency Crystal
- 4.13 Low-Frequency Crystal
- 4.14 Precision Low Frequency RC Oscillator (LFRCO)
- 4.15 GPIO Pins
- 4.16 Microcontroller Peripherals
- 4.17 Typical Performance Curves
- 5. Reference Diagrams
- 6. Pin Definitions
- 7. Design Guidelines
- 8. Package Specifications
- 9. Soldering Recommendations
- 10. Tape and Reel
- 11. Certifications
- 12. Revision History
Confidential
4.7 RF Receiver Characteristics for 802.15.4 DSSS-OQPSK in the 2.4 GHz Band
Unless otherwise indicated, typical conditions are: T
A
= 25 °C, VDD = 3.0V. RF center frequency 2.45 GHz.
Table 4.7. RF Receiver Characteristics for 802.15.4 DSSS-OQPSK in the 2.4 GHz Band
Parameter Symbol Test Condition Min Typ Max Unit
Max usable receiver input
level, 1% PER
SAT
Signal is reference signal
1
. Packet
length is 20 octets
— 10 — dBm
Co-channel interferer rejec-
tion, 1% PER
CCR Desired signal 3 dB above sensi-
tivity limit
— -1.7 — dB
Sensitivity, 1% PER SENS Signal is reference signal. Packet
length is 20 octets
— -102.3 — dBm
High-side adjacent channel
rejection, 1% PER. Desired
is reference signal at 3 dB
above reference sensitivity
level
2
ACR
P1
Interferer is reference signal at +1
channel-spacing
— 34.9 — dB
Low-side adjacent channel
rejection, 1% PER. Desired
is reference signal at 3 dB
above reference sensitivity
level
2
ACR
M1
Interferer is reference signal at -1
channel-spacing
— 34.8 — dB
Alternate channel rejection,
1% PER. Desired is refer-
ence signal at 3 dB above
reference sensitivity level
2
ACR
2
Interferer is reference signal at ± 2
channel-spacing
— 47.1 — dB
Image rejection , 1% PER.
Desired is reference signal at
3 dB above reference sensi-
tivity level
2
IR
Interferer is CW in image band
3
— 34.1 — dB
Blocking rejection of all other
channels, 1% PER. Desired
is reference signal at 3 dB
above reference sensitivity
level
2
. Interferer is reference
signal
BLOCK Interferer frequency < Desired fre-
quency - 3 channel-spacing
— 53.2 — dB
Interferer frequency > Desired fre-
quency + 3 channel-spacing
— 53.1 — dB
RSSI resolution RSSI
RES
-100 dBm to +5 dBm — 0.25 — dB
RSSI accuracy in the linear
region as defined by
802.15.4-2003
RSSI
LIN
— +/-6 — dB
Note:
1. Reference signal is defined as O-QPSK DSSS per 802.15.4, Frequency range = 2400-2483.5 MHz, Symbol rate = 62.5 ksym-
bols/s.
2. Reference sensitivity level is -85 dBm.
3. Due to low-IF frequency, there is some overlap of adjacent channel and image channel bands. Adjacent channel CW blocker
tests place the Interferer center frequency at the Desired frequency ± 5 MHz on the channel raster, whereas the image rejection
test places the CW interferer near the image frequency of the Desired signal carrier, regardless of the channel raster.
MGM220P Wireless Gecko Bluetooth Module Data Sheet
Electrical Characteristics
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