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Description
The SA2400BBE is a fully integrated single IC RF transceiver designed for 2.45 GHz wireless LAN (WLAN) applications. It is a direct conversion radio architecture that is fabricated on an advanced 30 GHz fTBiCMOS process. The SA2400BBE combines a receiver, transmitter, and LO generation into a single IC.
Specifications and features
The block diagram of the SA2400BBE Direct Conversion transceiver is given in Figure 1. It consists of the following functional blocks:
- A 79 dB adjustable gain range direct conversion zero IF receiver with 3 µs (typical) Tx to Rx switching time
- Front-end LNA with two internal gain states
- A fast on-chip closed-loop composite RF and IF AGC with zoomed analog RSSI output and 8 µs settling time
- Quadrature downconverters from 2.45 GHz RF directly to zero IF
- On-chip fast baseband DC cancellation with automatically stepped bandwidths of 10 MHz, 1 MHz, 100 kHz, and 10 kHz, settling within 8–13 µs for a DC error of 10% that decays to 1%
- Fully integrated channel filters, appropriate for 11 Msymbols/s QPSK modulation RF bandwidth
- An I/Q upconverter from baseband directly to 2.45 GHz, with +8 dBm output power, –40 dBc typical carrier leakage (calibrated) and 3 µs (typical) Rx to Tx switching time
- Wide band IQ modulator producing better than 14% EVM for 11 Msymbols/s QPSK modulation
- Integrated reconstruction and spectral shaping filters at I and Q modulation input that is driven by an external D/A. High common-mode rejection to input ground bounce.
- FIR-DACs for digital I/Q input feeding the analog signal path and including additional filtering for spectral shaping
- 2.45 GHz power amplifier driver with +8 dBm maximum output, 15 dB adjustable gain in 1 dB steps and a second switched output at –1.5 dBm power level with similar gain adjustments that are set by a separate register
- Completely on-chip calibration for Carrier Leakage compensation
- Internal power ramping with 2 µs delay and 0.5 µs ramp-up time
- A fractional-N frequency synthesizer with on-chip VCO and XO
- A 3-wire bus for control of most blocks
- An additional high-speed 3-wire bus for full control of Rx-Gain and DC-offset compensation parameters with 44Mbits/s
- Fast Tx-Rx switching based on a single digital input pin
- Reference currents and voltage for the supply of Baseband Processor and PA-chip
Application Scenarios
- IEEE 802.11 and 802.11b radios
- Supports DSSS and CCK modulation
- Supports data rates: 1, 2, 5.5, and 11 Mbps
- 2.45 GHz ISM band wireless communication devices
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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Additional Information
- Datasheet: Download SA2400BBE
- Chipdatas Part: CD94-SA2400BBE
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/27 17:40 +0800
Refund
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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