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

ASNT6151-KMM
Balanced I/Q Modulator (Up-Converter)All inputs are differential CML-type with 50Ohm on-chip termination

Limited temperature variation over industrial temperature rangeSingle +3.3V or -3.3V power supplyPower consumption: 430mWFabricated in SiGe for high performance, yield, and reliability

Custom CQFP 44-pin packageveevcc

30dB RF-to-IF isolationvcc

vcc

Differential input linearity range up to 600mV p-p

rfpvcc_int

Broadband DC to 18GHz Intermediate Frequency (IF) output

vcc

vcc

Up to 18GHz Local Oscillator (LO) inputs

rf1p



rf1n

DC to 4GHz broadband Radio Frequency (RF) inputs

vcc

vcc
vee
vcc
lo1p

vcc
rfbo

vcc

vcc

lo1n

ifp

ASNT6151
ASNT615X-KMM

vcc

vcc

lo2n

ifn

vcc

vcc

lo2p

rfb1

vcc

vcc
vee

1n/c

vcc

vcc

n/c

vcc

vcc

rf2p

rf2n

vcc

vcc

Rev. 1.3.2

veevccMay 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
RF1LO1ƩIFLO2

RF2Fig. 1. Functional Block Diagram

I/Q modulators are critical components in the signal chain of modern digital transmitters. I/Q modulators
perform the frequency translation that moves a base-band signal to a desired location in the RF spectrum.
The I/Q modulator shown in Fig. 1 accepts 2 local oscillator inputs LO1, LO2 representing in-phase (I)and quadrature (Q) components separated by 90°. These two signals are combined with I and Q baseband
signals RF1, RF2 in two separate mixers. The outputs from both mixers are then summed to provide amodulated carrier IF.
The part’s output buffers support the CML-type interface with on chip 50Ohm termination to vcc andmay be used in either DC or AC coupling modes (see also POWER SUPPLY CONFIGURATION). The
differential DC signaling mode is recommended for optimal performance. In particular, the output
common-mode voltage level of vcc-0.4V is guaranteed only in case of external single-ended 50Ohm DCtermination to vcc.
The part’s input buffer supports the CML-type interface with equivalent on-chip 50Ohm termination andcan be used in either DC or AC coupling modes. In the first mode, the input signal’s common mode
voltage should comply with the specifications shown in ELECTRICAL CHARACTERISTICS. In thesecond mode, the input termination provides the required common mode voltage automatically. The
differential signaling mode is recommended for optimal performance.

POWER SUPPLY CONFIGURATIONThe IC 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 = 3.3V and vee = 0V.

Rev. 1.3.2

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

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

Parameter
Supply Voltage (vcc)
Power Consumption
Case TemperatureStorage Temperature
Operational Humidity
Storage Humidity

Min-401010Max
3.6
470+90+1009898

Units
VmWºCºC%%TERMINAL FUNCTIONSTERMINAL
DESCRIPTIONNameNo.
Type
lo1p
37
CML Differential LO1 inputs with internal SE 50Ohm termination toinput vcc
lo1n39lo2p
43
CML Differential LO2 inputs with internal SE 50Ohm termination toinput vcc
lo2n41
rf1p
30
CML Differential RF1 inputs with internal SE 50Ohm termination toinput vcc
rf1n32
rf2p
6
CML Differential RF2 inputs with internal SE 50Ohm termination toinput vcc
rf2n4
ifp
19
CML Differential IF outputs. Require external SE 50Ohm termination
output to vcc
ifn
17
rfp
26
Analog Control for core currents
rfb1
15
Analog Control for core currents
rfbo
21
Analog Control for output buffer current
Supply and Termination Voltages
Name
Description
Pin Numbervcc
Positive power supply (+3.3V or 0) 1, 3, 5, 7, 9, 11, 12, 14, 16, 18, 20, 22, 23,25, 27, 28, 29, 31, 33, 34, 36, 38, 40, 42,44vee
Negative power supply (0V or -3.3V)
2, 13, 24, 35n/c

Rev. 1.3.2

Not connected pins

8, 103May 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 CHARACTERISTICSPARAMETERMIN

TYP MAXUNIT
COMMENTS
General Parameters-3.1-3.3-3.5
V
±6%
vee
0.0V
External ground
vcc
Ivee
130mA
Power consumption
430mW
Junction temperature-40
2585°CRF InputBandwidth4GHz
At -3dB level
Linearity range
600mV
Differential p-pCM Voltage Level
vcc -0.6 vcc -0.4 vcc +0.4
VLO Input
Bandwidth18
GHz
At -3dB level
Linearity range
600mV
Differential p-p
CM Voltage Level
vcc -0.6 vcc -0.4 vcc +0.4
VIF Output
Bandwidth18
GHz
At -3dB level
Small Signal Gain
0dB
From LO input, diff-to-diff-6dB
From RF input, diff-to-diff
CM Levelvcc -0.4
V
With external 50Ohm DC termination

PACKAGE INFORMATIONThe chip die is housed in a custom, 44-pin CQFP package shown in Fig. 2. The package provides a centerheat 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 ASNT6151-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 digits after the underscore 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.

Rev. 1.3.2

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 44-Pin Package Drawing (All Dimensions in mm)

Rev. 1.3.2

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
1.3.2
1.2.2
1.2.1

Date
05-2020
07-2019
05-20131.1.103-2013

1.0.1

04-2012

Rev. 1.3.2

Changes
Updated Package Information
Updated Letterhead
Corrected title
Removed specifications for ASNT6150
Corrected absolute maximum ratings
Corrected terminal functions
Corrected electrical characteristics
Corrected speed characteristics
Added gain specification
Corrected power consumption values
Corrected package information
Corrected format
Initial release

6May 2020