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AD9957BSVZ-REEL Folha de dados(PDF) 5 Page - Analog Devices |
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AD9957BSVZ-REEL Folha de dados(HTML) 5 Page - Analog Devices |
5 / 60 page AD9957 Rev. 0 | Page 5 of 60 Parameter Test Conditions/Comments Min Typ Max Unit NOISE SPECTRAL DENSITY (NSD) Single Tone fOUT = 20.1 MHz −167 dBm/Hz fOUT = 98.6 MHz −162 dBm/Hz fOUT = 201.1 MHz −157 dBm/Hz fOUT = 397.8 MHz −151 dBm/Hz TWO-TONE INTERMODULATION DISTORTION (IMD) I/Q rate = 62.2 MSPS; 16× interpolation fOUT = 25 MHz −82 dBc fOUT = 50 MHz −78 dBc fOUT = 100 MHz −73 dBc MODULATOR CHARACTERISTICS Input Data Error Vector Magnitude 2.5 Msymbols/s, QPSK, 4× oversampled 0.53 % 270.8333 ksymbols/s, GMSK, 32× oversampled 0.77 % 2.5 Msymbols/s 256-QAM, 4× oversampled 0.35 % WCDMA − FDD (TM1), 3.84 MHz Bandwidth, 5 MHz Channel Spacing Adjacent Channel Leakage Ratio (ACLR) IF = 143.88 MHz −78 dBc Carrier Feedthrough −78 dBc SERIAL PORT TIMING CHARACTERISTICS Maximum SCLK Frequency 70 Mbps Minimum SCLK Pulse Width Low 4 ns High 4 ns Maximum SCLK Rise/Fall Time 2 ns Minimum Data Setup Time to SCLK 5 ns Minimum Data Hold Time to SCLK 0 ns Maximum Data Valid Time in Read Mode 11 ns IO_UPDATE/PS0/PS1/PS2/RT TIMING CHARACTERISTICS Minimum Pulse Width High 1 SYNC_CLK cycle Minimum Setup Time to SYNC_CLK 2 ns Minimum Hold Time to SYNC_CLK 0 ns IQ INPUT TIMING CHARACTERISTICS Maximum PDCLK Frequency 250 MHz Minimum IQ Data Setup Time to PDCLK 2 ns Minimum IQ Data Hold Time to PDCLK 1 ns Minimum TX_ENABLE Setup Time to PDCLK 2 ns Minimum TX_ENABLE Hold Time to PDCLK 1 ns Minimum TX_ENABLE Pulse Width MISCELLANEOUS TIMING CHARACTERISTICS Wake-Up Time3 1 Fast Recovery Mode 8 SYSCLK cycles Full Sleep Mode 150 μs Minimum Reset Pulse Width High 5 SYSCLK cycles4 DATA LATENCY (PIPELINE DELAY) Data Latency Single Tone Mode Frequency, Phase, Amplitude-to-DAC Output Matched latency enabled 91 SYSCLK cycles Frequency, Phase-to-DAC Output Matched latency disabled 79 SYSCLK cycles |
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