BCM43907 Preliminary Data Sheet
General Spurious Emissions Specifications
5 GHz Band Spurious Emissions
20-MHz Channel Spacing
Note: Possible AFE combinations are as follows. The AFE=VCO/18 specifications for channels 5180,
5500, and 5825 are listed in Table 29.
•
•
•
•
AFE=VCO/18
AFE=VCO/16
AFE=VCO/8
AFE=VCO/6
Table 29: 5 GHz Band, 20-MHz Channel Spacing TX Spurious Emissions Specifications
Frequency (Fch; MHz)
5180 a
5500 a
5825 a
Spurious
Frequency
Power
(dBm)
Typ. (dBm) Max. (dBm) Typ. (dBm) Max. (dBm) Typ. (dBm) Max. (dBm)
HD2
–5
–5
–5
–5
–5
–5
–5
–5
–5
–5
–5
–57.1
–71.8
–62.6
–74.7
–57.1
–81.6
–81.2
–80.9
–
–56.3
–71.0
–54.2
–72.4
–56.3
–80.5
–80.1
–80.0
–
–58.0
–70.8
–54.3
–76.2
–58.0
–81.5
–81.3
–80.7
–
–56.9
–70.1
–54.0
–69.9
–56.9
–80.6
–80.4
–80.0
–
–59.6
–69.6
–50.7
–71.2
–59.6
–81.0
–80.8
–80.5
–
–58.3
–69.1
–50.3
–67.0
–58.3
–80.0
–80.0
–80.0
–
HD3
VCO
VCOx2
VCOx3
AFEx2
AFEx4
AFEx6
AFEx12
AFEx15
Fch + AFE
–
–
–
–
–
–
–75.6
–77.1
–76.8
–76.6
–77.3
–77.9
–74.7
–76.2
–74.5
–75.6
–76.1
–76.5
–76.4
–77.1
–77.1
–76.4
–76.8
–77.2
–75.5
–76.2
–74.9
–75.5
–75.5
–76.5
–76.1
–76.5
–76.4
–75.5
–76.8
–76.0
–75.0
–75.6
–75.9
–75.5
–76.3
–75.9
Fch + AFEx2 –5
Fch + AFEx3 –5
Fch – AFE
–5
Fch – AFEx2 –5
Fch – AFEx3 –5
a. VCO = (2/3) × Fch, where Fch is the center frequency of the channel.
Broadcom®
March 12, 2016 • 43907-DS104-R
Page 89
BROADCOM CONFIDENTIAL
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