BCM43907 Preliminary Data Sheet
WLAN 5 GHz Transmitter Performance Specifications
WLAN 5 GHz Transmitter Performance Specifications
Note: Unless otherwise noted, the values shown in Table 26 apply at the chip ports.
Table 26: WLAN 5 GHz Transmitter Performance Specifications
Parameter
Condition/Notes
Minimum Typical Maximum Unit
Frequency range
–
4900
–
5845
MHz
dBm
dBm
dBm
a
OFDM, QPSK
–13 dB
–
–
–
20
18.5
17
–
–
–
RF port TX power EVM
OFDM, 16-QAM –19 dB
(highest power setting,
25°C, and VBAT = 3.6)
OFDM, 64-QAM –25 dB
(R = 3/4)
OFDM, 64-QAM –27 dB
(MCS7, HT20)
–
16.5
–
dBm
b
OFDM, BPSK
OFDM,64-QAM
MCS7
0 dBm
0 dBm
0 dBm
–
–
–
–
–30
–33
–34
0.5
–
–
–
–
dB
OFDM EVM
dB
(25°C, VBAT = 3.6V)
dB
Phase noise
37.4 MHz Crystal, Integrated from
10 kHz to 10 MHz
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. This specification row indicates the linear power specification as measured from the chip output port. The
requirement is in dBm (TX power). The ratio (dB) in the Conditions/Notes column is the EVM.
b. This specification row indicates the EVM floor. The requirement is in dB (EVM). The power in the Conditions/
Notes column is the TX power specification in dBm.
General Spurious Emissions Specifications
This section provides the TX and RX spurious emissions specifications for the WLAN 2.4 GHz and 5 GHz
bands. The recommended spectrum analyzer settings for the spurious emissions specifications are provided in
Table 27.
Table 27: Recommended Spectrum Analyzer Settings
Parameter
Setting
Resolution bandwidth (RBW)
1 MHz
Broadcom®
March 12, 2016 • 43907-DS104-R
Page 86
BROADCOM CONFIDENTIAL
CYPRESS [ CYPRESS ]
