User's Manual

7
Parameter Description Min Max Unit
tA RisetimeofVDD3.3Vgoto90%of3.3V‐25 ms
tC TimefromVDD3.3Vreaching90%of3.3Vtolevelof
CHIP_PWD_Lgoingabove50%ofVDD3.3V.
5‐ μs
tB ThevalueistA+tC,duringthistime,thelevelof
CHIP_PWD_Lshouldstaybelow50%ofVDD3.3V.
 
4.5 WLAN RF Specifications
4.5.1 WLAN RF Specification- 802.11b
Items Contents
Specification IEEE 802.11b
Mode DSSS / CCK
Channel CH1 to CH13
Data rate 1, 2, 5.5, 11Mbps
TX Characteristics Min. Typ. Max. Unit
1. Power Levels (per chain)
1) Target Power@1Mbps 14.5 16
a
17.5 dBm
2) Target Power@2Mbps 14.5
16
a
17.5 dBm
3) Target Power@5.5Mbps 14.5
16
a
17.5 dBm
4) Target Power@11Mbps 14.5
16
a
17.5 dBm
2. Spectrum Mask @ Target Power
1) fc-33MHz ＜ f ＜ fc-22MHz - - -50 dBr
2) fc-22MHz ＜ f ＜ fc-11MHz - - -30 dBr
3) fc+11MHz ＜ f ＜ fc+22MHz - - -30 dBr
4) fc+22MHz ＜ f ＜ fc+33MHz - - -50 dBr
3. Frequency Error -10 - +10 ppm
4. Modulation Accuracy(EVM)@ Target Power
1) 1Mbps - - -10 dB
2) 2Mbps - - -10 dB
3) 5.5Mbps - - -10 dB
4) 11Mbps - - -10 dB
5. Tx spurious emission - - -52 dBm
RX Characteristics Min. Typ. Max. Unit
6. Minimum Input Level Sensitivity
1) 1Mbps (FER≦8%) - -97 -92 dBm
2) 2Mbps (FER≦8%) - -94 -89 dBm
3) 5.5Mbps (FER≦8%) - -90 -85 dBm
4) 11Mbps (FER≦8%) - -87 -82 dBm
7. Maximum Input Level (FER≦8%) -10 0 - dBm
8. Rx spurious emission -65 dBm
a: 2412MHz target power reduced to 15dBm for FCC bandedge limit.