Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505
Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

ASNT2123-KMM
DC-64Gbps Broadband Digital DDR 1:4 DemultiplexerSingle +3.3V or -3.3V power supplyPower consumption: 1.16W

Fabricated in SiGe for high performance, yield, and reliability

Custom CQFP 44-pin packagevee
vcc

Quarter-rate clock output

vcc



c4op

Half-rate clock input (DDR mode)

vcc

c4on

Differential CML I/O data and clock buffersvcc

q0p

Exhibits low jitter and limited temperature variation over industrial temperature range

vcc

q0n

High speed broadband 1:4 Demultiplexer (DMUX)

vcc

vcc
vee
vcc
q1p

vcc
n/c

vcc

vcc

q1n

dp

ASNT2123-KMM
ASNT2123

vcc

vcc

q2p

dnvcc

vcc

q2n

n/c

vcc

vcc
vee

Rev. 1.6.2

1vcc

cen

vcc

cep

vcc

q3n

vcc

q3p

vcc

vee

vcc

vcc

May 2020

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505
Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

DESCRIPTION
vcc
q0p
q0n
q1p
q1nvccdpdnq2pq2nq3pq3nvcc
cepcenDIV

c4op
c4on

Fig. 1. Functional Block Diagram

ASNT2123-KMM is a low power and high-speed digital 1-to-4 deserializer-demultiplexer (DMUX) thatfunctions seamlessly over data rates (fbit) ranging from DC to its maximum speed.
The main function of the part shown in Fig. 1 is to demultiplex an incoming high speed serial differential
CML data bit stream dp/dn running at a bit rate of fbit into 4 parallel data channels q0p/q0n, q1p/q1n,q2p/q2n, q3p/q3n running at a bit rate of fbit/4. Differential or single-ended half-rate clock cep/cen must
be provided by an external source for the part to function properly.
The parallel words and clock divided-by-4 c4op/c4on are transmitted through CML output interfaces.
The clock and data outputs are phase-matched to each other resulting in a very little relative skew over theoperating temperature range of the device.
The part’s I/O’s support the CML logic interface with on chip 50Ohm termination to vcc and may be useddifferentially, AC/DC coupled, single-ended, or in any combination (see also POWER SUPPLYCONFIGURATION). In the DC-coupling mode, the input signal’s common mode voltage should comply
with the specifications shown in ELECTRICAL CHARACTERISTICS. In the AC-coupling mode, theinput termination provides the required common mode voltage automatically. The differential DC
signaling mode is recommended for optimal performance.

POWER SUPPLY CONFIGURATION
The part can operate with either negative supply (vcc = 0.0V = ground and vee = −3.3V), or positivesupply (vcc = +3.3V and vee = 0.0V = ground). In case of the positive supply, all I/Os need AC
termination when connected to any devices with 50Ohm termination to ground. Different PCB layouts
will be needed for each different power supply combination.

Rev. 1.6.2

2May 2020

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505
Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

All the characteristics detailed below assume vcc = 0.0V and vee = -3.3V.

ABSOLUTE MAXIMUM RATINGS
Caution: Exceeding the absolute maximum ratings shown in Table 1 may cause damage to this productand/or lead to reduced reliability. Functional performance is specified over the recommended operating
conditions for power supply and temperature only. AC and DC device characteristics at or beyond theabsolute maximum ratings are not assumed or implied. All min and max voltage limits are referenced toground.
Table 1. Absolute Maximum Ratings

Parameter
Supply Voltage (vee)Power Consumption
RF Input Voltage Swing (SE)
Case Temperature
Storage Temperature
Operational Humidity
Storage Humidity

Rev. 1.6.2

Min-4010103Max-3.6
1.3
1.0+100+10098
98

UnitsVW
VºCºC%%

May 2020

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505
Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

TERMINAL FUNCTIONSTERMINAL
Name
No.
Typeq0pq0nq1pq1nq2pq2nq3pq3n
c4op
c4on
cep
cen
dp
dn
Name
vcc
veen/cRev. 1.6.2

30
32
37
39
41
43
462628CML
outputCML
outputCML
outputCML
outputCML
outputDESCRIPTION
Low-Speed I/Os
Differential quarter-rate data outputs. Require external SE50Ohm termination to vcc

Differential quarter-rate clock outputs. Require external SE50Ohm termination to vcc
High-Speed I/Os
8
CML Differential half-rate clock input signals with internal 50Ohm
input termination to vcc
1019
CML Differential full-rate data input signals with internal 50Ohm
input termination to vcc
17
Supply and Termination Voltages
Description
Pin Number
Positive power supply
1, 3, 5, 7, 9, 11, 12, 14, 16, 18, 20, 22, 23, 25, 27,(+3.3V or 0)
29, 31, 33, 34, 36, 38, 40, 42, 44
Negative power supply
2, 13, 24, 35(0V or -3.3V)
Not connected pins
15, 21

4May 2020

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505
Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

ELECTRICAL CHARACTERISTICSPARAMETERTYP MAX UNIT
COMMENTS
General Parameters-3.1-3.3-3.5
V
±6%
vee
0.0
V
External ground
vcc
Ivee
350mA
Power consumption
1160mW
Junction temperature -40
25125°C
HS Input Data (dp/dn)
Data Rate
DC4064Gb/s
Swing
0.20.8V
Differential or SE, p-p
CM Voltage Level
vcc-0.8
vcc
VMust match for both inputs
Half-Rate Input Clock (cep/cen)Frequency
DC2032GHz
Differential swing
0.20.8V
Differential or SE, p-p
CM Voltage Level
vcc-0.8
vcc
VMust match for both inputs
Duty Cycle
405060%LS Output Data (q0p/q0n, q1p/q1n, q2p/q2n, q3p/q3n)
Data Rate
DC1016Gb/s
Logic “1” level
Vvcc
Logic “0” levelvcc-0.44
V
With external 50Ohm DC termination
Output Jitter2
ps
Peak-to-peak at 10Gb/s
LS Output Clock (c4op/c4on)
Frequency
DC1016GHz
Logic “1” level
Vvcc
Logic “0” levelvcc-0.4
V
With external 50Ohm DC termination
Duty Cycle
50%
Output Jitter1
ps
Peak-to-peak at 10GHz

Rev. 1.6.2

MIN

5May 2020

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505
Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

PACKAGE INFORMATIONThe chip die is housed in a custom, 44-pin CQFP package shown in Fig. 2. The package provides acenter heat slug located on its back side to be used for heat dissipation. ADSANTEC recommends forthis section to be soldered to the vcc plain, which is ground for a negative supply, or power for a positivesupply.
The part’s identification label is ASNT2123-KMM. The first 8 characters of the name before the dashidentify the bare die including general circuit family, fabrication technology, specific circuit type, and partversion while the 3 characters after the dash represent the package’s manufacturer, type, and pin outcount.
This device complies with the Restriction of Hazardous Substances (RoHS) per 2011/65/EU for all ten
substances.

Rev. 1.6.2

6May 2020

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505
Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

Fig. 2. CQFP 44-Pin Package Drawing (All Dimensions in mm)

Rev. 1.6.2

7May 2020

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505
Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

REVISION HISTORY
Revision
1.6.2
1.5.2
1.5.1
1.4.1

Date
05-2020
07-2019
05-2015
01-2014

1.3.1

02-2013

1.2.1
1.1.1
1.0.1

01-201301-201301-2013

Rev. 1.6.2

Changes
Updated package information
Updated Letterhead
Updated package information
Title correction
Corrected electrical characteristics
Title correction
Corrected description
Corrected electrical characteristics
Updated package information
Updated maximum speed
Updated power and current consumption
First release

8May 2020