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F1350 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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F1350 Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 31 page  DPD Demodulator for PA Linearization 550MHz to 1150MHz F1300 Datasheet Zero-DistortionTM, Glitch-FreeTM DPD Receiver 1 February 7, 2022 F1300 DATASHEET DESCRIPTION This document describes the specification for the F1300 Digital Pre-Distortion Demodulator for PA linearization. This device is one of 2 variants to cover common UTRA bands. See the Part# Matrix below for details. COMPETITIVE ADVANTAGE In typical basestation transmitters a digital pre-distortion loop is employed to improve the Transmitter performance. The signal coming out of the PA is sampled so that the I&Q data at Baseband can be pre- distorted before being sent to the Tx DAC to counteract the distortion inherent in the downstream PA. The signal coupled from the PA is adjusted via a digital step attenuator to a lower level and then sub-sampled at an IF frequency of ~200 MHz which necessitates the need for a highly linear demodulator to downmix to quadrature IF from the Transmit frequency. By sampling IF_I and IF_Q independently and then digitally combining these signals, an effective doubling of the sample rate can be achieved. Any distortion in this path will degrade the performance of the DPD algorithm. By utilizing an ultra-linear demodulator w/integrated DSA such as the F1300, the ACLR and/or power consumption of the full Tx system can be improved significantly. D DP PD D ffu ullll p pa atth h A AC CL LR R:: ⇓ ⇓ 11 d dB B IIcccc:: D DP PD D ffu un nc cttiio on n P Po ow we err C Co on ns su um mp pttiio on n ⇓ ⇓ 4400% % Z Ze erro o--D Diis stto orrttiio on nTTM M D De em mo od d e elliim miin na atte es s 2 2 IIF F a am mp ps s IIn ntte eg grra atte es s 2 2 B BP PF Fs s,, 2 2 B Ba allu un ns s,, 2 2 S SP P2 2T Ts s G Glliittc ch h--F Frre ee eTTM M g ga aiin n c co on nttrro o ll PART# MATRIX Part# RF range UTRA bands IF freq range Typ. Gain Injection F F1 13 30 00 0 5 55 50 0 -- 1 11 15 50 0 5 5,,6 6,,8 8,,1 12 2,,1 13 3,, 1 14 4,,1 17 7 2 20 0 -- 3 35 50 0 1 12 2..5 5 H Hiig gh h S Siid de e o orr L Lo ow w S Siid de e F F1 13 35 50 0 1 13 30 00 0 -- 2 29 90 00 0 1 1,,2 2,,3 3,,4 4,,9 9,,1 10 0 7 7,,2 21 1,, 2 24 4,, 3 38 8 2 20 0 -- 5 50 00 0 1 12 2..5 5 H Hiig gh h S Siid de e o orr L Lo ow w S Siid de e FEATURES (I OR Q PATH) • Wide flat performance IF BW • Wide RF and LO BWs (~ 0.8 GHz) • Ideal for Multi-Carrier Systems •• D Drriiv ve es s A AD DC C d diirre ec cttlly y • Ultra linear + +4 43 3 d dB Bm m IIP P3 3O O • Low Noise Figure • Excellent ACLR performance • 200 Ω output impedance • Fully integrated DPD demodulator •• 6 6 x x 6 6 m mm m 3 36 6--p piin n p pa ac ck ka ag ge e • Standby Mode w/Fast Recovery • ICC: 2 26 62 2 m mA A DEVICE BLOCK DIAGRAM ORDERING INFORMATION IFI RF VCO IBIAS Bias Control STBY IFQ 90 O DEC CLK SPI CSb SDI RFSW RFIN_X RFIN_Y . SPLIT LOSW LOIN_A LOIN_B ISET 2 F1300NBGI8 0.8 mm height package Green Industrial Temp range RF product Line Tape & Reel Glitch-FreeTM Glitch-FreeTM |
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