Next generation A/D sampler

ADS3000+

l News

Detect first fringe with DBBC!! (22th June. 2010)

l Specification

² Input power ±250mVp-p(50ohm)

² Reference clock 10MHz 0dBm±3dBm(50ohm)

² Clock reference 1PPS in/out

² compliance VSI-H, LVDS, connector MDR80

² RS232C D-SUB, 9pin male 1port

² 100Base-Tx 1port

² Power supply AC100V〜AC240V

² Size 2U (480x88x430mm)

l Table 1. Mode of ADS3000+

mode	num	Data Gbps	Sample Msps	VSI out Mbps	bit	VSI clock MHz	Adopted filter type	DBBC type
A	0 (0x0)	1.024	128	1024 (1port)	8	32	○	X
B	1 (0x1)	2.048	1024	2048 (2port)	2	32	○	X
C1	2 (0x2)	2.048	512	2048 (2port)	4	32	○	X
C2	3 (0x3)	2.048	512	2048 (2port)	4	32	○	X
D	4 (0x4)	4.096	2048	4096 (2port)	2	64	○	X
E1	5 (0x5)	4.096	1024	4096 (2port)	4	64	○	X
E2	6 (0x6)	4.096	1024	4096 (2port)	4	64	○	X
F	7 (0x7)	4.096	512	4096 (2port)	8	64	○	X
TVG1	8 (0x8)	2.048	−	1024 (1port)	−	32	○	○
TVG2	9 (0x9)	4.096	−	2048 (1port)	−	64	○	○
BBC	10(0xA)	See Table 2					X	○
G1	11(0xB)	4.096	4096	4096 (2port)	1	64	X	X
G2	12(0xC)	4.096	4096	4096 (2port)	1	64	X	X

l Table 2.DBBC

Sample rate	bandwidth	quantization	VSI clock
8Msps	4MHz	4bit	Fix：64 MHz Variable：8 MHz
16Msps	8MHz	4bit	Fix：64 MHz Variable：16 MHz
32Msps	16MHz	4bit	Fix：64 MHz Variable：32 MHz
64Msps	32MHz	4bit	Fix：64 MHz Variable：64 MHz
1.024Gsps ※	-	2bit， 1bit	64MHz

※DBBC supports 1GspsX4ch sampling mode.

Manual/Documents

• DBBC Mode Manual (Ver.1.41) (2010/12/5 in Japanese)

Software

Software	Description	Release/Update Date
ADS3kp-Perl	Perl software to setup/control ADS3000+ over Ethernet. MSPerl-module is necessary to work with.	2016/8/17
ADS3kp-Perl	Cosmetic Change to display version info with English.	2016/8/29

l Articles

Koyama. Y et al, “Developments of K5/VSI System for Geodetic VLBI Observations”, IVS-TDC symposium, pp15-18, //www2.nict.go.jp/aeri/sts/stmg/ivstdc/news_29/pdf/tdcnews_29.pdf, 2008

Takefuji. K et al, “First Fringe Detection with Next-Generation A/D Sampler ADS3000+” IVS-TDC symposium, pp17-21, //www2.nict.go.jp/aeri/sts/stmg/ivstdc/news_30/pdf/tdcnews_30.pdf, 2009

Takefuji. K et al, “First 4GHz sampling fringe” in Japanese,

//www2.nict.go.jp/aeri/sts/stmg/vlbinews/news122.pdf

l Acknowledgment

The ADS3000+ is made by Cosmo Research Co.,Ltd.

more imformation and contact ; takefuji( atatatata) nict.go.jp

(please replace (atatatata) to at-mark)