BCM43455 Preliminary Data Sheet
General Spurious Emissions Specifications
Table 37: WLAN 5 GHz Transmitter Performance Specifications (Cont.)
Maximu
m
Parameter
Condition/Notes
Minimum Typical
Unit
Phase noise
37.4 MHz Crystal, Integrated from
10 kHz to 10 MHz
–
0.5
–
Degrees
TX power control dynamic –
range
10
–
–
–
dB
dB
Closed loop TX power
Across full-temperature and voltage
–
±2.0
variation at highest power range. Applies across 10 to 20 dBm
level setting
output power range.
Carrier suppression
Gain control step
Return loss
–
–
15
–
–
–
–
–
dBc
dB
0.25
6
Z = 50Ω
–
dB
o
a. The cellular standards listed indicate only typical usages of that band in some countries. Other standards may
also be used within those bands.
General Spurious Emissions Specifications
This section provides the TX and RX spurious emissions specifications for both the WLAN 2.4 GHz and 5 GHz
bands. The recommended spectrum analyzer settings for the spurious emissions specifications are provided in
Table 38.
Table 38: Recommended Spectrum Analyzer Settings
Parameter
Setting
Resolution Bandwidth (RBW):
1 MHz
Video Bandwidth (VBW):
Sweep:
1 MHz
Auto
Span:
100 MHz
Detector:
Maximum Peak
Trace:
Maximum Hold
Modulation:
OFDM (Orthogonal Frequency-division Multiplexing)
Transmitter Spurious Emissions Specifications
The TX spurious emissions specifications in this subsection are based on the following definitions:
•
•
•
•
•
AFE = VCO/16 for 2G channels
AFE = VCO/18 for 5G 20 MHz channels
AFE = VCO/9 for 5G 40 MHz channels
AFE = VCO/6 for 5G 80 MHz channels
LO = Channel frequency
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 125
BROADCOM CONFIDENTIAL
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