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

ASNT5174-KMC
DC-28Gbps/15GHz Signal Phase Shifter

100MHz of bandwidth for the phase adjustment tuning port

Fully differential CML input interfaces

Fully differential CML output interface with 400mV single-ended swingLinearized data output for minimized undershoot/overshootSingle +3.3V or -3.3V power supplyPower consumption: 415mWFabricated in SiGe for high performance, yield, and reliability

Custom CQFP 24-pin packageveeExhibits low jitter and limited temperature variation over industrial temperature range

vcc

vcc

Delay adjustment range of 135ps

vcc



vcc

Broadband (DC-28Gbps/DC-15GHz) tunable data/clock phase shifter

vcc



vee

vcc

vcc

ip

outp

ASNT5174

vcc

vcc

inoutnvcc

vcc

Rev. 2.3.2

1

vcc

icntn

vcc

icntp

vcc

vee

vee

January 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

DESCRIPTION50
ip50
outp

TunablePhase Shiftin50outn
50100100

icntp

icntn

Fig. 1. Functional Block Diagram

ASNT5174-KMC is a data / clock variable delay line fabricated in SiGe technology. The IC shown in
Fig. 1 provides an adjustable delay of its differential output signal outp/outn in relation to its broadband
input signal ip/in. The delay is controlled through a wide-band differential tuning port icntp/icntn.
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.
Due to an extremely low jitter, the part is suitable for use in high-speed measurement / test equipment.

Delay Control PortThe delay is controlled through a wide-band differential tuning port icntp/icntn. The delay control
diagram is shown in Fig. 2.

Rev. 2.3.2

2January 2020

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

Delay Adjustment in ASNT5174 (new setup)

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

9080
70
60
50

Relative Delay, ps

40
30
20
100-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

-1000.1

0.2

0.3

0.4

0.5

0.6

-20-30-40-50-60Vcntp-VcntnFig. 2. Delay Control Diagram

Rev. 2.3.2

3January 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 a negative supply (vcc = 0.0V = ground and vee = −3.3V), or a positivesupply (vcc = +3.3V and vee = 0.0V = ground). In case of a positive supply, all I/Os need AC termination
when connected to any devices with 50Ohm termination to ground. Different PCB layouts will be neededfor 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 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 (assumed vcc).
Table 1. Absolute Maximum Ratings

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

Min-401010Max-3.6
0.46
1.0+90+10098
98

Units
VW
VºC
ºC%%

TERMINAL FUNCTIONSTERMINAL
Name
No.
Typeipinicntp
icntn
outp
outn
Name
vcc
vee

Rev. 2.3.2

DESCRIPTION

High-Speed I/Os
21
CML Differential high-speed signal inputs with internal SE 50Ohm
input termination to vcc
233Input Differential high-speed control inputs with internal SE 100Ohm
termination to vcc
511
CML Differential high-speed signal outputs with internal SE 50Ohm
output termination to vcc. Require external SE 50Ohm termination to vcc
9Supply and Termination Voltages
Description
Pin Number
Positive power supply (+3.3V or 0)2, 4, 6, 8, 10, 12, 14, 15, 16, 17, 18, 20, 22, 24
Negative power supply (0V or -3.3V)
1, 7, 13, 19

4January 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 CHARACTERISTICSPARAMETERveevcc
Ivee
Power consumption
Junction temperature
Data Rate
Frequency
Swing
CM Voltage Level
Data Rate
Frequency
Logic “1” level
Logic “0” level
Rise/Fall times
Output Jitter
Duty cycle
Adjustment range
Absolute delay stability
Bandwidth
SE voltage level
SE voltage level
Differential swing
CM Level

MIN

TYP MAX UNIT
COMMENTS
General Parameters
-3.1
-3.3
-3.5
V
±6%
0.0V
External ground
125mA
415mW
-4025125°C
HS Input Data/Clock (ip/in)
DC
28Gbps
DC15GHzFor clock signals
0.05
1.0V
Differential or SE, p-p
vcc-0.8
vcc
VMust match for both inputs
HS Output Data/Clock (outp/outn)
DC28Gbps
DC15GHzFor clock signals
Vvcc
vcc-0.4
V
With external 50Ohm DC termination1317
ps
20%-80%1ps
Peak-to-peak
455055%For clock signal
Output-to-Input Delay
For the full range of icntp/icntn
135
pscontrol signals
-16
16
ps
0-125°C
Phase Shift Control port (icntp/icntn)
DC100
MHz
vcc-600
vccmVHalf control range when the opposite
pin is at vcc
vcc-1200
vccmV
Full control range when the opposite
pin is at vcc-0.6V
01200mV
Peak-peak, full control range
vcc-(Diff. swing)/4VIn differential mode

PACKAGE INFORMATIONThe chip die is housed in a custom 24-pin CQFP package shown in Fig. 3. Even though the package
provides a center heat slug located on the back side of the package to be used for heat dissipation,
ADSANTEC does NOT recommend for this section to be soldered to the board. If the customer wishes
to solder it, it should be connected to the vcc plain that is ground for the negative supply or power for thepositive supply.
Rev. 2.3.2

5January 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

The part’s identification label is ASNT5174-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 tensubstances.

Fig. 3. CQFP 24-Pin Package Drawing (all dimensions in mm)

Rev. 2.3.2

6January 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
2.3.2
2.2.2
2.2.1

2.1.1
2.0.1

1.0

Rev. 2.3.2

DateChanges
01-2020 Updated Package Information
07-2019 Updated Letterhead06-2013 Corrected title
Corrected control diagram
Corrected electrical characteristics table03-2013 Corrected terminal functions
Corrected electrical characteristics
01-2013 Corrected title
Added package pin out drawing
Revised functional block diagram
Revised description
Added delay control diagram
Added power supply configuration
Added absolute maximum ratings
Revised terminal functions
Revised electrical characteristics
Added package information and mechanical drawing
Format correction
08-2009 First release

7

January 2020