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

ASNT6161-BD
DC-17GHz Analog Signal Selector 1-of-4
DC to 17GHz broadband operation

Four differential CML-type input ports and one differential CML-type output port

Temperature-stabilized differential gain of approximately 0dB

1dB compression point of 0dBm

DC-to-1GHz broadband channel selector ports

Low jitter and limited temperature variation over industrial temperature rangeSingle +4.5V or -4.5V power supplyPower consumption: 2.1W

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

Pad frame with 44 pads

2334121

Rev. 1.0.21July 2019

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
50
d0p
d0n

50
50

d1p
d1n
gnpcrl
0/1/2/3
d2p
d2n

50

50

5050

qp
qn50
50

d3p
d3n50

sel1sel2lvlcrl

Fig. 1. Functional Block Diagram

The temperature stable ASNT6161-BD analog signal selector 1-of-4 is intended for use in high-speed
systems. The IC shown in Fig. 1 can deliver one of four different broad-band analog differential signals
d0p/d0n, d1p/d1n, d2p/d2n, and d3p/d3n to its differential output qp/qn with a nominal gain of 0dB.
The gain can be fine-tuned using the 4-pin control port gncrl0/1/2/3 with accuracy of 0.5dB as shown in
Table 1.
Table 1. Gain Control

gncrl3 gncrl2 gncrl1 gncrl0 Gain, dB
Comments0000-2.0000
1-1.5
00
10-1.000
1
1-0.5
01000.5
0
10
1
1.00
110
1.5
0111
2.0
1X
X
X0default state 1111
The active input selection is performed through the external high-speed dual port sel1/sel2. The selection
logic is shown in Table 2.
Table 2. Channel Selection

sel1 sel2 Input connected to output00
d0 (default state)
01
d1
10
d2
11
d3
Rev. 1.0.2

2July 2019

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 port accepts 3.3V CMOS signals referenced to either vee or vcc depending on the state of the lvlcrl
port: lvlcrl=”1” sets low levels for sel1/sel2 to vee, lvlcrl=”0” or not connected sets high levels forsel1/sel2 to vcc.
The part’s I/Os support the CML-type interface with on chip 50Ohm termination to vcc, and may be useddifferentially, AC/DC coupled, single-ended, or in any combination (also see 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. In particular, the specified output commonmode voltage level is guaranteed only in case of external single-ended 50Ohm DC termination to vcc.

POWER SUPPLY CONFIGURATIONThe part can operate with either a negative supply (vcc = 0.0V = ground), or a positive supply (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. In any case, the input common mode voltage level is shifted downfrom vcc by a certain voltage of ΔVICM as specified in ELECTRICAL CHARACTERISTICS. To have theinput common mode voltage equal to ground, a floating negative supply scheme detailed in Fig. 2 should
be used.
For the best performance, the external 50Ohm terminations for the outputs should be connected to vcc,
but not to ground!
Different PCB layouts will be needed for each different power supply combination.
PSU1
ΔVICM

PSU2vcc

GND
Value specified
in ElectricalCharacteristics

veea.

PSU1
- G +PSU2- G +GND vccveeb.

Fig. 2. Floating Negative Supply Scheme: Potential Diagram (a) and Schematic (b)All the characteristics detailed below assume vcc = 0.0V = ground.

ABSOLUTE MAXIMUM RATINGS
Caution: Exceeding the absolute maximum ratings shown in Table 3 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).
Rev. 1.0.2
3July 2019

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

Table 3. Absolute Maximum Ratings

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

Min-401010Max-5.5
2.6
1.0+1009898UnitsVW
VºC%%

TERMINAL FUNCTIONTERMINAL
Name No.
Typed0pd0nd1pd1nd2pd2nd3pd3n
qp
qn24
26
29
3124
7
918
15

lvlcrl11sel1
sel0
gncrl0gncrl1
gncrl2
gncrl3374035421320

Namevccvee

Rev. 1.0.2

DESCRIPTION

High-speed Signals
CML - Differential high speed data inputs with internal SE 50Ohm
type termination to vccCML type
CML type
CML type
CML - Differential high speed data outputs with internal SE 50Ohm
type termination to vcc. Require external SE 50Ohm termination to vcc
Control Signals
CMOS Required input voltage range selector for sel0/sel1 ports (active:high, voltage range from vee to vee+3.3V; default: low or n/c,voltage range from vcc-3.3V to vcc)
SEHigh-speed input with selectable logic levels, (active: low; default:high). For the selection logic see Table 2SECMOS Low-speed input with internal 10KOhm termination to vcc. For theCMOS control logic see Table 1
CMOS
CMOS
Supply and Termination Voltages
Description
Pin Number
Positive power supply rail
1, 3, 5, 6, 8, 10, 12, 14, 16, 17, 19, 21,
23, 25, 27, 28, 30, 32, 34, 36, 38, 39,41, 43
Negative power supply rail
22, 33, 44

4July 2019

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 CHARACTERISTICSPARAMETERMIN
TYP MAXUNIT
COMMENTS
General Parameters-4.7-4.5-4.3V±4.5%
vee0.0V
External ground
vcc
Ivee
475mA
Power consumption
2140mW
Junction temperature
-25
50
125°C
Input Analog (d0p/d0n, d1p/d1n, d2p/d2n, d3p/d3n)
Bandwidth
DC
17GHz-3dB
Common mode levelvcc-0.65 vcc-0.55 vcc-0.45
mV
Input Noise Density
1.5nV/sqrt(Hz)S11-30dB
at 1GHz-8dB
at 20GHz
Output Analog (qp/qn)
Bandwidth
DC17GHz-3dB
Common mode levelvcc-0.55
V
With external 50Ohm
DC termination to vcc
S22-27dBat 1GHzSmall Signal Differential Gain -2.00.0+2.0dB
Output referred 1dB0dBm
Single-Ended, 25GHz
Compression Point
2nd harmonic-55dBc
at 1GHz-35dBc
at 20GHzrd3 harmonic-55dBc
at 1GHz-40dBc
at 20GHz
Low-Speed Controls (lvlcrl, gncrl 0/1/2/3)
High logic level
Vvcc
Low logic level
Vvee
High-Speed Control (sel1, sel2)
Bandwidth1
GHzHigh logic level
Vvcc
Low logic levelvcc-3.3
V-2.4V default state
Input current
10uAsink or source

Rev. 1.0.25

July 2019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

DIE INFORMATION
The main dimensions of the die are given in Table 4.
Table 4. Important Die Dimensions

Pad metal dimensions
74µm x 80µm
Pad opening dimensions
68µm x74µm
Die dimensions
1200µm x 1200µm
The part’s die incorporates wire bonding pads with the coordinates of their centers given in Table 5.

Table 5. Die Pad Coordinates

PadNumber123456789101112131415161718192021
22

X Coordinate,
µm
222
306
390
474
558
642
726
810
894
978
1080
1143
1143
1143
1143
1143
1143
1143
1143
1143
1143
1080

Y Coordinate,
µm
57
5757
57
57
57
57
57
57
57
120
222
306
390
474
558
642
726
810
894
978
1080

Pad
Number
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

X Coordinate,
µm
978
894
810
726
642
558
474
390
306
222
120
57
57
57
57
57
57
57
57
57
57
120

Y Coordinate,
µm
1143
1143
1143
1143
1143
1143
1143
1143
1143
1143
1080
978
894
810
726
642
558
474390306
222
120

The part’s identification label is ASNT6161-BD. 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 2 characters after the dash indicate that the die is not packaged.
The IC complies with the Restriction of Hazardous Substances (RoHS) per EU 2002/95/EC for all 6substances.
Rev. 1.0.2

6July 2019

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
1.0.2
1.0.1

Rev. 1.0.2

Date
07-2019
11-2017

Changes
Updated LetterheadFirst release

7

July 2019