1. Electronics for Range System Prototype Tests
A. Piskun
ITEP, Moscow, 28 April, 2010

2. Range System Prototype Readout Scheme
DAQ VME crate 9U
VME crate 6U
VME crate 6U
COMPASS CATCH
MWDB units
Hot link cables
WIRE R/O
analog & digital
STRIP R/O
digital
to DAQ crate
RW-TDC QTC–16
ADB-32 (A-32)
analog
ASum-96
digital
A2DB-32
Range System Prototype Readout Scheme

3. Digital R/O Block Diagram
Strip R/O
Amplifier-Discriminator Board (72)
Preamplifier Board (72)
CATCH
A-32
ADB-32
MWDB
1 unit
Muon Wall Digital Board (24 total)
STRIP SIGNALS
(2304 channels)
Double Amplifier-Discriminator Board (72)
CATCH
Wire R/O
MWDB
A2DB-32
(Digital output)
1 unit
WIRE SIGNALS
(2304 channels)

4. Analog (wire) R/O Block Diagram
1 board per layer 24 total
3 boards per layer
CATCH
A2DB-32
ASum-96
Charge-to-Time Converter
QTC-16
RW-TDC
A2DB-32
A2DB-32
2 boards total
2 boards total
Analog output
WIRE SIGNALS
(2304 channels / 96 per layer)

5. Double Amplifier-Discriminator Board (A2DB-32)
2 modes of amplification:
K1= 65 mV/uA
K2=420 mV/uA
Designed both for wire and strip R/O
Analog and 2 digital (ECL, LVDS) outputs
Low noise: I noise r.m.s = 38nA
Low cross talk < -45 dB
Status: “table-top” tested, ready for production (80 with spares)

6. Front-end Electronics for Strip R/O
32-channel preamplifier board A-32 v.3; prototype manufactured and tested; ready for production (80 with spares)
32-channel amplifier-discriminator board
ADB-32; tested in D0/FNAL and COMPASS/CERN (MW1); ready for production (80 with spares)

7. Analog Summator Board (ASum-96)
Status: designed and being manufactured, need to produce 30 (with spares)

8. ASum-96 Schematic Circuit Diagram

9. ASum-96 PSpise Modeling
Yellow – input signal (from A2DB-32 analog output)
Red – 1st summing stage output
Blue – 2nd summing stage output
Green – output buffer signal

10. Charge –to-Time Converter (QTC-16)
Status: “table-top” tested, 2 boards manufactured, 1 spare needed

11. Muon Wall Digital Board (MWDB)
192-channel register based on 6 F1 chips
Status: tested in COMPASS (MW1), 5 ready, need to produce 21(with spares)

12. Status of Units: A2DB-32 A-32 ADB-32 ASum-96 QTC-16 RW-TDC MWDB CATCH
“Table-top” tested, 72 boards needed, to produce 80 (with spares)
A-32
ADB-32
Tested in D0/FNAL and COMPASS/CERN (MW1), 72 boards needed, to produce 80 (with spares)
ASum-96
Designed and being manufactured, needs final test, to produce 30 (with spares)
QTC-16
“Table-top” tested, 2 boards produced, to produce 1 spare
RW-TDC
Tested in COMPASS/CERN (RW), need to borrow 2 units (from Rich Wall)
MWDB
Tested in COMPASS/CERN (MW1), 24 needed, 5 boards produced, need to produce 21 (with spares)
CATCH
Need to borrow 2 units (from COMPASS)