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

ASNT5037-PQC
DC-17Gbps Limiting Amplifier

Broadband (DC-17Gbps) limiting amplifierExhibits low jitter and limited temperature variation over industrial temperature range



100MHz of bandwidth for the amplitude adjustment tuning port

Ideal for high speed proof-of-concept prototyping

Fully differential CML input interfaces

Fully differential CML output interface with adjustable SE amplitude from 0V to 1.16V

Single +3.3V or -3.3V power supplyPower consumption: 647mW

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

Standard MLF/QFN 24-pin package

Rev. 5.4.2

1April 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

2K

tnn

5050

inp

outp

inn

outn
5050
2Ktnp

Fig. 1. Functional Block Diagram

The temperature stable ASNT5037-PQC SiGe IC provides extremely low jitter broadband signalamplitude control capability, and is intended for use in high-speed measurement / test equipment. The IC
shown in Fig. 1 can process a high-speed data signal inp/inn and deliver a high-speed data output signal
outp/outn with its output signal amplitude controlled by tuning ports tnp/tnn. Higher values of tnp andlower values of tnn (or higher values of the differential signal) result in higher output amplitudes.
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.

Amplitude Control PortThe output amplitude is controlled through a wide-band differential tuning port tnp/tnn. The amplitudecontrol diagram is shown in Fig. 2.

Rev. 5.4.2

2April 2020

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505

Amplitude Adjustment in ASNT5037

Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

1200

Output Amplitude, mV

1000

800

600

400

200

0-0.4

-0.3

-0.2

-0.1

00.1

0.2

0.3

0.4

Vtnp-Vtnn
Average Diagram
Fig. 2. Amplitude Control

POWER SUPPLY CONFIGURATION
The part can operate with either negative supply (vcc = 0.0V = ground and vee = −3.3V), or positive
supply (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 shown in Table 1 may cause damage to this productand/or lead to reduced reliability. Functional performance is specified over the recommended operatingconditions 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. 5.4.2

Min-4010103

Max-3.6
0.7
1.0
+90
+100
9898Units
VW
VºCºC%%

April 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
NameNo.
TypeDESCRIPTION

Namevcc

High-Speed I/Os
20
CML Differential high-speed signal inputs with internal SE 50Ohm
input termination to vcc.
22
10
CML Differential high-speed signal outputs with internal SE 50Ohm
output termination to vcc. Require external SE 50Ohm termination to vcc.
8
4
CML Differential output amplitude control signal with internal 2KOhm
input termination to vcc.
14
Supply and Termination Voltages
Description
Pin Number
Positive power supply. (+3.3V or 0)
1, 2, 3, 5, 7, 9, 11, 13, 15, 16, 17, 19, 21, 23

vee

Negative power supply. (0V or -3.3V)

inp
innoutp
outn
tnp
tnn

6, 12, 18, 24

ELECTRICAL CHARACTERISTICSPARAMETER
vee
vcc
Ivee
Power consumption
Junction temperature
Data Rate
Swing
CM Voltage Level
Data Rate
Logic “1” level
Logic “0” level
Maximum swing
Rise/Fall times
Output Jitter
Duty cycle
Bandwidth
SE voltage level
SE voltage level
Differential swing
CM Voltage Level
Rev. 5.4.2

MINTYPMAX UNITCOMMENTS
General Parameters-3.1-3.3-3.5
V±6%
0.0V
External ground
196mA
647mW
-40
25125°C
HS Input Data (inp/inn)
DC
17Gbps0.05
1.0V
Differential or SE, p-p
vcc-0.8
vcc
VMust match for both inputs
HS Output Data (outp/outn)
DC
17GbpsVvcc
vcc-1.16 vcc-0.58 vcc
V
With external 50Ohm DC termination,and full range of tnp/tnn control signal.
1.16
V15
1719ps20%-80%1ps
Peak-to-peak
455055%Tuning port (tnp/tnn)
DC100
MHz
vcc-500
vccmV½ control range, the opposite pin at vcc.
vcc-1000
vccmV
Full control range, the opposite pin at
vcc-0.5V.
01000mV
Peak-peak. Full control range.
vcc-0.5vcc
VMust match for both inputs
4April 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 standard 24-pin QFN package shown in Fig. 3. It is recommended that thecenter heat slug located on the back side of the package is soldered to the vee plain that is ground for thepositive supply or power for the negative supply.
The part’s identification label is ASNT5037-PQC. 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 out
count.
This device complies with the Restriction of Hazardous Substances (RoHS) per 2011/65/EU for all tensubstances.

ASNT5037
Fig. 3. QFN 24-Pin Package Drawing (All Dimensions in mm)

Rev. 5.4.2

5April 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
5.4.2
5.3.2
5.3.1
5.2.1

Date
04-2020
07-2019
09-2014
09-2014

5.1.1
5.0.1

07-2014
03-2013

4.1

03-2010

4.0
3.0
2.0
1.0

02-201001-2010
12-2009
08-2009

Rev. 5.4.2

Changes
Updated Package Information
Updated Letterhead
Added maximum output swing value
Corrected output amplitude
Corrected power consumption
Added Amplitude Control Port description
Added description of tnp/tnn ports
Corrected title
Revised package pin out drawing
Revised functional block diagram
Revised description
Added power supply configuration
Added absolute maximum ratings
Revised terminal functions
Revised electrical characteristics
Revised package information
Added mechanical drawing
Format correction
Revised electrical characteristics
Added package information section
Revised electrical characteristics
Revised electrical characteristics
Revised electrical characteristics
First release6April 2020