MTA BPM Electronics NIM module, 4 inputs, 2 BPMs per board Lock to external RF either 201MHz or 805MHz Single network connection reads out ~ 10 boards 12 bit sampling of IF I and Q waveforms up to 44dB adjustable gain in demodulator chip Diagnostic DAC can drive (via analog switches) each input up to about ¼ full scale (at maximum input gain); also drives FP lemo 32 MB SDRAM available (e.g. data capture), but not used now TMS470 micro-controller, programmed in C, handles control and readout WIZnet 1” x 2” daughtercard provides TCP/IP stack (UDP capable) All signal processing done in Altera Cyclone FPGA Webpage for current Pbar system

SD RAM 16Mx16 MTA BPM Card Details (2 BPMs/card) D A Ref In Ø Det Sync I/O IN 0 A Cyclone FPGA 12 Bit A/D Ref FB USB TMS470 uC A D Rd Wrt Ethernet WizNet IIM7010B I/Q Dat 12 Bit A/D MHz VCO Err Amp Sdat I/O RefIn/N I/O RJ-45 Spare I/O Lo Pass AD8348 IN 0 B 12 Bit A/D LRF/8 I/Q Dat 12 Bit A/D Lo Pass AD8348 IN 1 A 12 Bit A/D I/Q Dat 12 Bit A/D Lo Pass AD8348 IN 1 B 12 Bit A/D LRF/8 I/Q Dat 12 Bit A/D Lo Pass AD MHz ±  f LO 50% Duty Cycle AD9952 DDS LTC2293 x 4 SysClk 22 NN 44 Lo Pass Balun Lo Pass Balun Lo Pass Balun Lo Pass Balun 300MHz Cut Off 5MHz Cut Off Quadrature Downconverters 2/4/8/16 Divider

Remaining Issues Input connector options –SMA or SMB with patch panel –N-type – plug heliax directly in Readout and Synchronization –Open Access Client (OAC) exists Acts like ACNET front-end and handles all ACNET protocols (Readings, Settings, Data logging, FTP, etc) Can’t guarantee 15Hz rate to synchronize with Linac Controls –Plan to implement necessary ACNET protocol for boards to respond at 15Hz to synchronize with other Linac devices like bpms in Linac Control System Several options for how to do this Can proto-type and test with an existing board –Speed of hardware should not be an issue Only require 80 bytes of data per pulse Hardware capable of more than 2MB/s Beam Pulse Length from 2  s to 50  s in 1  s steps?

Purchasing Boards Approximately $800 per board –$12k for 15 Boards No leadtime issues expected –If we want N-type connectors need to order right away