2.4GHZCHIPSET 查看數據表（PDF） - Intersil
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2.4GHZCHIPSET Datasheet PDF : 2 Pages
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PRISM™ 2.4GHz Chip Set
Typical 802.11 DS-PHY System Level Performance (Note 5) (Measured at a diversity antenna port)
Receiver
• Frequency Range . . . . . . . . . . . . . . . 2.4GHz - 2.4835GHz
• Step Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1MHz
• Cascaded Noise Figure . . . . . . . . . . . . . . . . . . . . . . 6.8dB
• Sensitivity . . . . . . . . -93dBm, 1 MBPS, 8E-2 FER (Note 1)
-90dBm, 2 MBPS, 8E-2 FER (Note 1)
• Input Intercept Point . . . . . . . . . . . . . . . . . . . . . . . -17dBm
• IF Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280MHz
• IF Bandwidth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17MHz
• Image Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80dB
• Adjacent Channel Rejection . . . . . . . . . . . . . . . . . . >35dB
• Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . .2.7V - 5.5V
Transmitter
• Frequency Range . . . . . . . . . . . . . . 2.4GHz - 2.4835GHz
• Step Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1MHz
• Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . +18dBm
• Spurious Outputs . . . . . . . . . . . . . . Targeting ISM/802.11
• Transmit Spectral Mask . . . . . . -32dBr at First Side-Lobe
• IF Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280MHz
• Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . .2.7V - 5.5V
General Specifications
• Targeted Standard . . . . . . . . . . . . . . . . . . . . .IEEE 802.11
• Data Rate . . . . . . . . . . . . . . . . . . . . . . . . .1 MBPS DBPSK
2 MBPS DQPSK
• Range. . . . . . . . . . . . . . . . . . . . . . . . 400ft Indoor (Note 2)
3700ft Outdoor (Note 2)
• RX/TX Switching Speed . . . . . . . . . . . . . . . . . . . . . . . . 2µs
• Power Savings Modes
- Mode 1: 190mA at 1µs Recovery (Notes 3, 4)
- Mode 2: 70mA at 25µs Recovery (Notes 3, 4)
- Mode 3: 60mA at 2ms Recovery (Notes 3, 4)
- Mode 4: 30mA at 5ms Recovery (Notes 3, 4)
• Average Current
(Without Power Savings Modes) . . . . . . . 298mA (Note 6)
• Average Current
(With Power Savings Modes) . . . . . . . . . . . 60mA (Note 7)
NOTES:
1. FER = Frame Error Rate or Packet Error Rate.
2. Range Test using AND-C-107 omnidirectional antenna.
3. Supply current includes AM79C930 MAC Processor.
4. Recovery time is for the PRISM™ 2.4GHz Chip Set only and
does not include programming latency of the AM79C930 MAC
Processor.
5. Refer to Application Note AN9624 for more information on the
“PRISM™ DSSS PC Card Wireless LAN Description”.
6. Based on average current consumption for “typical” application.
7. Power savings modes refer to AN9665. Average radio current
consumption for “typical” application.
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Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time with-
out notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
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