Application Note No. 1

acam-messelectronic gmbh - Am Hasenbiel 27 - D-76297 Stutensee-Blankenloch - Germany - www.acam.de

1

(TDCs)

acam-messelectronic

TDC()

TDC TDCs ,TDC () CMOS , CMOS TDC TDC ,, TDC

coarsecounter

dynam ic va lue m em ory

Start

Stop

data post processing

H igh-speed unit

1

START STOP TDC

TDC TDC 2,99792* m/s 1 300

Application Note No. 1

acam-messelectronic gmbh - Am Hasenbiel 27 - D-76297 Stutensee-Blankenloch - Germany - www.acam.de

2

1ns - 150mm () 100ps - 15mm 10ps 1.5mm

TDC TDC-GP2, 65ps, 9.8mm TDC-GP1, 125ps 19mm TDC-GP1

2

TDC-GP1 TDC-GP1 TDC-GP1 a. 1- : 0.45m - 570m : 19mm : 13mm GP1 start stop1 ( stop ) 125ps 19mm 90ps 13mm 3ns 3.8us 45cm 570m - GP1 2.5ns - start stop 3ns - GP1

TDC TDC-GP1 - TDCs -

- TDC-GP1

Application Note No. 1

acam-messelectronic gmbh - Am Hasenbiel 27 - D-76297 Stutensee-Blankenloch - Germany - www.acam.de

3

- TQFP44 - 4 15ns TDC-GP1 1 GP1 4M 100 = 3,8s( 570m) 100*3,8s=380s TDC = 25mA*380s/1s=9,6A (1) ALU 100*2s = 200s ALU = 5mA*200s/1s=1A (2) 90A/MHz*4MHz = 360A (3) I/O = 2mA/MB*s*400B/s=1A (4) GP1 372uA(50ns ) 360A*(1s-50ms)/1s=342A TDC uA Mhz Reg 0: 0x44 + Reg 1: 0x4D , Reg 2: 0x01 Stop1 Start Reg 3: 0xXX Reg 4: 0x60 (4MHz(RefClk)/8=500KHz 2 s) Reg 5: 0xXX Reg 6: 0x02 Reg 7: 0x01 Stop 1 Reg 8: 0x00 Reg 9: 0x00 Reg 10: 0x80

b. : 9m -> 25km : 19mm : 17mm( 1mm) TDC-GP1ms125ps (LSB) 19mm 110ps 17mm 9 m>25km!TDC - GP12.5ns - startstopstart - GP1

TDC

Application Note No. 1

acam-messelectronic gmbh - Am Hasenbiel 27 - D-76297 Stutensee-Blankenloch - Germany - www.acam.de

4

TDC-GP1 - 200mm,125ps,31

- - 322 - 100,

100=10 11ps 1,7mmstartstop

- 2TDCMCU 35Mhz Reg 0: 0x54 + 2 Reg 1: 0x4D Reg 2: 0x21 1- 2 Reg 3: 0xXX Reg 4: 0x00 (35MHz(RefClk) - 28,5ns) Reg 5: 0xXX Reg 6: 0x02 Reg 7: 0x02 Stop 12 Reg 8: 0x00 Reg 9: 0x00 Reg 10: 0x80

c. : 2.2m 285m : 19mm : 17mm( 1mm) TDCTDCTDCPLL stopstartstopstopTDCstart

3

Application Note No. 1

acam-messelectronic gmbh - Am Hasenbiel 27 - D-76297 Stutensee-Blankenloch - Germany - www.acam.de

5

GP1 - stopstart15ns()1.9us

2.2m285m - 3stop15ns() - TDC-GP1 - - 25mA 20Mhz Reg 0: 0x00 Reg 1: 0xCD , , Reg 2: 0x12 Stop 12 - Stop 1 Reg 3: 0x5A PLL- = 90 Reg 4: 0x16 Neg_Phase=1, Clockdivider = 64 Reg 5: 0xXX Reg 6: 0x02 Reg 7: 0x02 Stop 12 Reg 8: 0x00 Reg 9: 0x00 Reg 10: 0x80 TDC-GP1TDCTDC-GP2TDC-GPXTDC-GP2QFN32SPI65psTDC-GP110-1.8us,2500ns4ms

d. 3ns-60ns.TDCstopTDC0,

Application Note No. 1

acam-messelectronic gmbh - Am Hasenbiel 27 - D-76297 Stutensee-Blankenloch - Germany - www.acam.de

6

stop1stop2start0s250ps

e. 600m timeoutTimeoutALU ALUALU15.360 LSBs30.720 LSB 30.720 LSB30.720 LSB7.8us1200m ( 1, 6)3acam

f. TDCTDC GPXF1GPX10psGPX 161014x 3500*40001TDC-GPX4stop32