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

ASNT5050-KMC
DC-32Gbps Broadband Digital 2:1 Multiplexer/Selector



Ideal for high speed proof-of-concept prototyping

Fully differential CML input interfaces

Fully differential CML output interface with 400mV single-ended swingSingle +3.3V or -3.3V power supplyPower consumption: 450mW

Fabricated in SiGe for high performance, yield, and reliability

Custom CQFP 24-pin packagevee

Ideal for use as a high isolation selector switch or as a high speed 2-to-1 serializer

vcc

d1nExhibits low jitter and limited temperature variation over industrial temperature range

vcc



d1p

High speed broadband 2:1 Multiplexer/Selector (MUX)

vcc

vee

vcc

vcc

d0p

outp

ASNT5050

vcc

vcc

d0n

outn

vcc

vcc

Rev. 2.2.2

1vcc

cn

vcc

cp

vcc

vee

vee

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.comDESCRIPTION
d1pd1n50505050d0poutp

2:1 MUXCored0n50outn
505050cpcnFig. 1. Functional Block Diagram

The temperature stable ASNT5050-KMC SiGe IC can be utilized as either a high isolation selector switch
or a high speed 2:1 serializer, and is intended for use in high-speed measurement / test equipment. Whenemployed as a selector switch, the IC shown in Fig. 1 can route one of its differential data input signals
d0p/d0n or d1p/d1n to its differential output outp/outn while effectively blocking the other data input.
Selection of a specific data input is achieved through an appropriate external DC biasing of the selector
signal inputs cp/cn. The logic is shown in Table 1.
Table 1. Truth Tablec d0 d1 out
0 X 000 X 1
11 0 X 0
1 1 X 1
As a 2:1 serializer, the IC can receive high speed input data signals into d0p/d0n and d1p/d1n andeffectively multiplex them into a double frequency rate NRZ output data signal to its differential output
outp/outn by using a high speed input clock signal on its selector signal inputs cp/cn.
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.
Rev. 2.2.2

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

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.

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

ABSOLUTE MAXIMUM RATINGS
Caution: Exceeding the absolute maximum ratings may cause damage to this product and/or lead to
reduced reliability. Functional performance is specified over the recommended operating conditions forpower supply and temperature only. AC and DC device characteristics at or beyond the absolute
maximum ratings are not assumed or implied. All min and max voltage limits are referenced to ground.
Table 2. Absolute Maximum Ratings

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

Min-401010Max-3.60.5
1.0+90+1009898

Units
VW
VºCºC%%TERMINAL FUNCTIONSTERMINAL
Name
No.
Typed0p
d0nd1pd1ncpcnoutpoutn
Namevccvee
Rev. 2.2.2

DESCRIPTION

High-Speed I/Os
21
CML Differential data input signals with internal SE 50Ohm termination toinput vcc
23
17
CML Differential data input signals with internal SE 50Ohm termination toinput vcc
15
3
CML Differential clock input signals with internal SE 50Ohm termination
input to vcc
511
CML Differential data output signals with internal SE 50Ohm termination
outputto vcc. Also require external SE 50Ohm termination to vcc
9Supply and Termination Voltages
Description
Pin Number
Positive power supply
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24(+3.3V or 0)
Negative power supply
1, 7, 13, 19(0V or -3.3V)
3May 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 CHARACTERISTICSPARAMETER

MIN

TYP

MAXUNITCOMMENTS
General Parameters-3.1-3.3-3.5
V
±6%
vee
0.0
V
External ground
vcc
Ivee
135mA
Power consumption
450mW
Junction temperature -40
25125°C
HS Input Data (d0p/d0n, d1p/d1n)
Data rate / Frequency DC
32/16 Gbps/GHz
When used as a selector
Data rate
DC16Gbps
When used as a multiplexer
Swing
0.05
1.0V
Differential or SE, p-p
CM Voltage Level
vcc-0.8
vcc
VMust match for both inputs
HS Input Clock (cp/cn)
Frequency
DC16GHz
Swing0.05
1.0V
Differential or SE, p-p
CM Voltage Level
vcc-0.8
vcc
VMust match for both inputs
Duty cycle
455055%
HS Output Data (outp/outn)
Data rate / Frequency DC
32/16 Gbps/GHz
When used as a selector
Data rate
DC32Gbps
When used as a multiplexer
Logic “1” level
Vvcc
Logic “0” levelvcc-0.4
VWith external 50Ohm DC termination
Rise/Fall times
121314
ps20%-80%
Output Jitter2ps
Peak-to-peak

PACKAGE INFORMATIONThe chip die is housed in a custom 24-pin CQFP package shown in Fig. 2. The package provides a center
heat slug located on its back side to be used for heat dissipation. ADSANTEC recommends for thissection to be soldered to the vcc plain, which is ground for a negative supply, or power for a positive
supply.
The part’s identification label is ASNT5050-KMC. 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. 2.2.2

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

Fig. 2. CQFP 24-Pin Package Drawing (All Dimensions in mm)

Rev. 2.2.2

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

REVISION HISTORY
Revision
2.2.2
2.1.2
2.1.1

Date
05-2020
07-2019
02-20192.0.102-2012

1.010-2008

Rev. 2.2.2

Changes
Updated Package Information
Updated Letterhead
Added truth table
Revised package information section
Format correction
Revised title
Added pinout drawing
Revised functional block diagram
Revised description section
Added power supply configuration section
Added absolute maximum ratings table
Revised electrical characteristics section
Revised package information section
Added package mechanical drawing
First release

6May 2020