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OBSOLE ADCTE
FEATURES
RF transceiver with integrated ADCs and DACs IEEE 802.16 WiMAX/WiBro Dual receivers, single transmitter Operating band: 2.3 GHz to 2.7 GHz 3.5 MHz < BW < 10 MHz Superior receiver sensitivity with NF < 3.5 dB Manual Rx gain or autonomous AGC mode Highly linear and spectrally pure transmitter Tx EVM = −38 dB Tx noise floor < −134 dBm/Hz at fOFFSET > 22 MHz Tx power control range of 58 dB, resolution of 0.25 dB Integrated fractional-N synthesizer 10 Hz LO step size LO integrated phase noise < 0.4°rms Automatic frequency correction < 0.012 ppm Industry-standard JESD-207 digital interface
APPLICATIONS
BWA/WiMAX/WiBro CPEs USB dongles/minicards
Pico and femto base stations Proprietary radio systems
GENERAL DESCRIPTION
The AD9354 is a radio frequency (RF) transceiver with a single transmitter and dual receivers fully integrated into the device. This allows the part to be used for mobile and fixed WiMAX/WiBro wireless network systems. By incorporating an RF MxFE™, the AD9354 offers the combination of an RF front end and a mixedsignal baseband, enabling an easy-to-use JESD-207-compliant digital interface to the baseband application-specific integrated circuit (ASIC) or field-programmable gate array (FPGA). In addition, the AD9354 operates in the 2.3 GHz to 2.7 GHz range, covering most of the licensed and unlicensed bands. Channel bandwidths of 3.5 MHz, 4.375 MHz, 5 MHz, 7 MHz, 8.75 MHz, and 10 MHz are supported.
The direct-conversion receivers have state-of-the-art noise figure (NF) and linearity and, with the exception of baluns, do not require external components. The complete RF subsystem integrates autonomous automatic gain control (AGC) loops and dc offset corrections, thus eliminating the need for high speed interaction with the baseband processor.
The received signal is digitized with a set of four analog-to-digital converters (ADCs) with high dynamic range. Decimation and
Rev. SpA
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WiMAX/WiBro RF MxFE MISO Transceiver AD9354
07602-001
FUNCTIONAL BLOCK DIAGRAM
RX1_N, RX1_P
AD9354
2
ADC ADC
FILTER
TXNRX
DATA INTERFACE
2 RX2_N, RX2_P
PW_DET TX_N, TX_P
2
RADIO SWITCHING* (GPO0 TO GPO3)
4
GPO LDOs
4 SPI PORT
CTRL 2
ADC ADC DAC DAC
FILTER
FILTER
10 D[9:0]
DATA_CLK
DV/FB_CLK
DAC
LO SYNTH
REFCLK
XTALP XTALN
CTRL_OUT[1:0] AUXADC AUXDAC *RADIO SWITCHING IS ONE POSSIBLE USE FOR THE GPO PINS.
Figure 1.
channel filters produce a 10-bit output signal at the appropriate sample rate determined by the bandwidth mode. The transmit path interpolates 10-b.