Receivers for Dish and WBSPF. Stéphane GAUFFRE WBSPF SKA AIP Meeting Dwingeloo, Friday 9 June 2017

Transcription

1 Receivers for Dish and WBSPF Stéphane GAUFFRE WBSPF SKA AIP Meeting Dwingeloo, Friday 9 June 2017

2 Outline - Receiver overview - Part on Indexer - RF Chains - Digitizer Board - Transmission - Clock Conditionner Module - Part in Pedestal - Reception - FPGA Carrier Board

3 Receiver Overview - Requirements: - SPFRx input return loss > 15 db - SPFRx input protection: no damage for an input signal of +10 dbm - SPFRx gain flatness: 1.5 dbp-p (TBC) - SPFRx nominal input signal: -132 dbm/hz to - dbfs - SPFRx noise figure < 25 db - SPFRx attenuation range: 0 40dB for Band 4 and 0 37dB for Band 5 Receiver Freq. Range BW Min bit depth Transport Band GHz 2.38 GHz GSps Band 5a Band 5b Band 5c GHz GHz *** GHz GHz *** GHz GHz *** 3.9 GHz 4.25 GHz 7.0 GHz 7.7 GHz 9 GHz 7.5 GHz *** Band 5 ECP ECP approved GSps GSps GSps

4 Receiver Overview - Receiver on Dish indexer - transport over optic fiber - Digital processor unit in Dish Pedestal (VME) Receiver

5 Receiver Overview - Receiver on Dish indexer - transport over optic fiber - Digital processor unit in Dish Pedestal (VME) Receiver

6 Receiver Overview Receiver PU.DGP B4 X B5a X B5b X Noise X B4 Y B5a Y B5b Y Noise Y S45 S45.RF B4 B5a B5b B4 B5a B5b SP4T Gain /2 4 GHz RFoF S45.ODL RF X RF Y RFoF S45. A/D A/D SP4T Gain /2 S45.DG S45.PWR FMC Control Indexer power 230V 50Hz S45.D S3.D S45.D 4GHz 4GHz FMC4 FMC3 FMC2 FMC1 FPGA carrier board 100G link FPGA QSFP28 To CSP

7 Part on feed indexer 4 GHz RFoF RFoF Indexer power 230V 50Hz S45 /2 S45. S45.PWR B4 X S45.RF B4 SP4T Gain S45.ODL SP4T Gain Control B5a X B5b X Noise X B5a B5b RF X A/D /2 B4 Y B5a Y B5b Y Noise Y B4 B5a B5b RF Y A/D FMC S45.DG S45.D

8 RF Chains: S45.RF - Coaxial components: RF amplifiers (Mini-Circuits), gain equalizers (slope correction), SMA attenuators (input return loss, ripple) - Custom band pass filters - Surface mount devices for more integrated module (Cost and space saving) Coax cable B4 ZX60-83LN+ 20dB EQ1 Power Supply V, 5V Coax cable Coax cable B5a ZX B5b db NF=5.5dB EQ2 ZX dB NF=1.6dB ZX db NF=5.5dB EQ3 PE42542 SP4T TGA dB NF=3dB Microwave Integrated Module ADRF5020 HMC1018A 0-31dB HMC dB NF=3dB HMC1018A 0-31dB Coax cable Noise 3dB source Coax cable NF=7dB B5c- ZX dB NF=7dB 6dB ZX dB NF=7dB From Feeds to Digitizer board

9 RF Chains: Band 4 [ GHz] - Modeling with S-parameters

10 RF Chains: Band 5a [ GHz] - Modeling with S-parameters

11 RF Chains: Band 5b [ GHz] - Modeling with S-parameters

12 RF Chains: Band 5c [ GHz] - Modeling with S-parameters

13 Receiver Part on Feed Indexer 4 GHz RFoF RFoF Indexer power 230V 50Hz S45 /2 S45. S45.PWR B4 X S45.RF B4 SP4T Gain S45.ODL SP4T Gain Control B5a X B5b X Noise X B5a B5b RF X A/D /2 B4 Y B5a Y B5b Y Noise Y B4 B5a B5b RF Y A/D FMC S45.DG S45.D

14 Digitizer Board: S45.DG - COTS solution - IP Macros are not considered (NRE cost > 1M, ) Parameter ASNT72 Adsantec HMCAD5831 ADI ADC2 Micram A4B25G Alphacore Input Bandwidth ENOB at 8GHz Sampling (max) 20 GHz 20 GHz 25 GHz 25 GHz (TBC) 3.23 at 10 GSps 2.9 at 20 GSps 5 at 20 GSps 3.3 at 25 GSps 15 GSps 26 GSps 32 GSps 25 GSps (TBC) Power 4.3 W 4.2 W 10 W 0.5 W Architecture Single-core Single-core 2 interleaved Single-core Package CQFP QFN Module Chip-on-board Availability Yes Yes Yes No Price (+100k of NRE) 2500 for some units

15 Digitizer Board: S45.DG - HMCAD5831 evaluated: single tone analysis GSps GSps GHz GHz

16 Digitizer Board: S45.DG HMCAD5831 evaluated: noise analysis at 16 GSps db GHz Gaussain noise E+09 2E+09 3E+09 4E+09 5E+09 6E+09 7E+09 8E+09 Frequency in Hz GHz Gaussain noise db E+09 2E+09 3E+09 4E+09 5E+09 6E+09 7E+09 8E+09 Frequency in Hz

17 Digitizer Board: S45.DG - First demonstrator based on the HMCAD5831 Pol. X 1 ADC X 8 diff. Paires (data + overrange) INHIBIT 1:2 ϕ PRBS F M C Pol. Y ADC Y 8 diff. Paires (data + overrange) INHIBIT 2 - Market survey: - Replace the HMCAD5831 board by a new one based on the Alphacore (4-bit at 25 GSps). - Discussion with E2V: 8-bit at more than 24 GSps in the E2V roadmap for space applications. Massive interleaved SAR architecture.

18 Receiver Part on Feed Indexer 4 GHz RFoF RFoF Indexer power 230V 50Hz S45 /2 S45. S45.PWR B4 X S45.RF B4 SP4T Gain S45.ODL SP4T Gain Control B5a X B5b X Noise X B5a B5b RF X A/D /2 B4 Y B5a Y B5b Y Noise Y B4 B5a B5b RF Y A/D FMC S45.DG S45.D

19 Transmission: S.D - The key components for ODL have been selected - Firefly optical system from Samtec (1 to 14 Gbps) 2 channels for ADC data and monitoring signals channels for PRBS and control signals - Parallel to serial circuit at 2.5 Gbps for LMC signals 1:20 deserialization with 8b10b decoding stage 20:1 serialization with 8b10b encoding stage

20 Transmission: S.D Control bit[16..23] for S45.D TCA6408A 8-bit expander SDATA S SMA 1PPS 0 HMC V SMA (Sampling clock)/2 Control bit[8..15] 2.5V TCA6408A 8-bit expander SDATA S Sel PRBS HMC V 5-bit HMC856 Shift Register 3.3V HMC747 DFF 3.3V HMC V Control bits for S45.RF and S45. - Rectangular connectors Control bit[0..7] 2.5V TCA6408A 8-bit expander 2.5V 6 bits for 3-wire (4 HMC1018) SDATA S SPI (temp. Sensors + monit. ADC s) SPI Dout + interrupt bits I2C 8 lanes ADC data for pol. X TLK2501 Parallel/Serial Decoder Encoder 2.5V 5 MHz 1 lane 16 bit 1 lane 16 bit Sametec Firefly ECUO-T Optical 14Gbps I2C 3.3V fibre PRBS 8 lanes ADC data for pol. Y HMC V PRBS Divider by-4 Clock 500 MHz Sametec Firefly ECUO-R Optical 14Gbps I2C 3.3V fibre FMC conn. Control bit[0..7] TCA6408A 8-bit expander (Optional) 2.5V SDATA S SPI (DAC s + temp. Sensors + monit. ADC s) SPI Dout + interrupt bits I2C TLK2501 Parallel/Serial Decoder Encoder 2.5V 5 MHz Power Supply 2.5V and 3.3V 1 lane 16 bit 1 lane 16 bit I2C Header Sametec Firefly ECUO-T Optical 14Gbps I2C 3.3V S45.D fibre

21 Receiver Part on Feed Indexer 4 GHz RFoF RFoF Indexer power 230V 50Hz S45 /2 S45. S45.PWR B4 X S45.RF B4 SP4T Gain S45.ODL SP4T Gain Control B5a X B5b X Noise X B5a B5b RF X A/D /2 B4 Y B5a Y B5b Y Noise Y B4 B5a B5b RF Y A/D FMC S45.DG S45.D

22 Clock Conditioner Module: S45. - Sampling clocks for SKA1-MID 16 GHz for Bands 4 and 5b sampling (and 5c- between 16.2 and 19.8 GHz) 9 GHz for Band 5a sampling - Surface mount devices (cost and size savings) Power Supply 5V,V AFBR-2310Z O E 1PPS To S45.D RF1 HMC1118 AFBR-2310Z O E EP2C+ RF2 PWR GAT-3+ HMC636 9dB HMC573 2 P-1dB=+20dBm HMC434 PGA F:8 20dB P-1dB=+20dBm LO RF1 HMC1118 PMA3-83LN+ RF2 21dB P-1dB=+20dBm EP2C+ PWR RF1 ADRF5020 HMC573 2 RF YAT-2+ YAT-6+ RF1 ADRF5020 RF2 EP2K1+ PWR /2 To S45.D Pol.X To 45S.DG Pol.Y To S45.DG RF IF SIM-U7H+

23 Clock Conditioner Module: S45. - Band 5 ECP (ECP160022) Freq. Range Sampling clock ADC output speed Band GHz 17 GHz 8.5 Gbps Band 5a GHz 9.5 GHz 4.75 Gbps Band 5b GHz 17 GHz 8.5 Gbps Band 5c GHz 16.2 GHz 8.1 Gbps - PLL from TI: LMX2592 (9800 MHz max) /2 To S45.D AFBR-2310Z O E F:4 PLL EP2K1+ PWR Pol.X To 45S.DG Pol.Y To S45.DG

24 Part in Pedestal PU.DGP S3.D S45.D 4GHz 4GHz FMC4 FMC3 FMC2 FMC1 FPGA carrier board 100G link FPGA QSFP28 To CSP

25 Reception: S45.D fibre Sametec Firefly ECUO-R Optical 14Gbps 3.3V I2C Header I2C 1 lane 1 lane 5 MHz TLK2501 Parallel/Serial Decoder 2.5V Encoder SPI I2C 9 lanes (ADC + 1PPS) for pol. X S45.D FMCA conn. fibre fibre Sametec Firefly ECUO-T Optical 14Gbps 3.3V Sametec Firefly ECUO-R Optical 14Gbps 3.3V I2C I2C 500MHz 1 lane LMK04828 Clock Synthetizer Ref 3.3V 9 lanes (ADC + 1PPS) for pol. Y 5 MHz TLK2501 Parallel/Serial Decoder FPGA Clocks SPI FMCB conn. SMA f/8 Clock 4GHz 1:2 1 lane 500MHz 2.5V Encoder I2C Power Supply 1.8V, 2.5V and 3.3V

26 FPGA Carrier Board - Arria 10 Evalutation Kit from Altera Digitizer characterization Ripple/slope correction transmission checking - Custom board for deployement in more than 100 antenna 4 FMC connectors for S3.D and S45.D QSFP28 for 100G link FPGA with sufficent logic ressources for Band 5b processing S3.D S45.D 4GHz 4GHz FMC4 FMC3 FMC2 FMC1 PU.DGP FPGA carrier board 100G link FPGA QSFP28 To CSP

27 Thank you