BCM4330 Preliminary Data Sheet
WLAN 2.4 GHz Transmitter Performance Specifications
Table 35: WLAN 2.4 GHz Transmitter Performance Specifications (Cont.)
Parameter
Condition/Notes
Minimum Typical Maximum Unit
Closed-loop Tx power
variation
Across full temperature and voltage
range. Power accuracy of ±1.5 dB for
10–20 dBm and ±3 dB for 5–10 dBm.
–
–
±1.5
dB
PSAT algorithm Tx power VBATT > 3.6V, –30 to 55°C. All rates.
–
–
–
–
–
–
0
1.5
1
dB
dB
dB
variation
VBATT > 3.6V, 85°C. All rates.
(Additional back-off due
VBATT = 2.7V, –30 to 85°C. 18, 12, 9,
to temperature and
and 6 Mbps, and all CCK rates.
voltage by the PSAT
algorithm. This is in
addition to the closed-
loop Tx power variation.)
VBATT = 2.7V, –30 to 85°C. 54, 48, 36, –
and 24 Mbps, and all 802.11n rates.
VBATT = 2.3V, –30 to 85°C. All rates.
–
1.5
dB
–
15
–
4
–
–
–
0.25
6
3.5
±1.5
6
–
–
–
–
–
dB
dBc
dB
dB
dB
dB
Carrier suppression
Gain control step
Return loss
–
–
Zo = 50Ω
Load pull variation for
output power, EVM, and
Adjacent Channel Power
Ratio (ACPR)
2:1
EVM degradation
Output power
variation
ACPR-compliant
power level
–
–
15
–
dBm
a. The cellular standards listed indicate only typical usages of that band in some countries. Other standards may
also be used within those bands.
b. Derate by 1.5 dB for –30 °C to –10°C and 55°C to 85°C.
c. Tx power for Ch 1 and Ch 11 is specified by non-volatile memory parameters.
®
BROADCOM
BCM4330 Preliminary Data Sheet
April 28, 2011 • 4330-DS304-RI
Page 138
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