A d v a n c e da n d
N o v e l
27 Via Porto Grande, Rancho Palos Verdes, CA, 90275.

S c i e n c eT e c h n o l o g y
Ph. # 1-310-377-6029.

Fax # 1-310-377-9940.

ASNT6112-KMC
25GHz 1-to-3 Analog Signal Splitter·Broadband linear signal splitter for ADC interleaving or similar system applications.

·One input signal port and three phase matched differential output signal ports.

·Greater than 25GHz of analog bandwidth.

·Features approximately 0.0dB of differential gain.

·Delivers high linearity for differential input signals under 1000mVpk-pk.

·Exhibits low jitter and limited temperature variation over industrial temperature range.

·

Fully differential input and output buffers with on-chip 50Ohm termination.

·

Linear output interface with an up to 500mV single-ended swing.

·Single ±3.3V power supply with 1.35W of power consumption.

·Fabricated in SiGe for high performance, yield, and reliability.

·Custom CQFP 24-pin package.

DESCRIPTION

Functional Block Diagram

Package View

The temperature stable ASNT6112-KMC 1-3 analog signal splitter is intended for use in highspeed interleaved ADC or similar systems. The active splitter can receive a broad-band analog
signal and effectively distribute it to three separate phase matched differential outputs with onchip 50Ohm termination that provides Vcc-0.55V common mode voltage in combination with therequired external 50Ohm DC loading. The part’s differential input provides an equivalent onchip 50Ohm termination and can 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 below. In
the second mode, the input termination provides the required common mode voltageautomatically. The splitter’s I/Os should be used differentially for optimal performance. The IC
operates from a single ±3.3V power supply.
Rev.: 1.4

April 2011.

1

ASNT6112-KMC

A d v a n c e da n d
N o v e l
27 Via Porto Grande, Rancho Palos Verdes, CA, 90275.

S c i e n c eT e c h n o l o g yPh. # 1-310-377-6029.

Fax # 1-310-377-9940.

Power Supply Configuration
The ASNT6112-KMC can operate with either Vcc = 0.0V and Vee = -3.3V or Vcc = +3.3V andVee = 0.0V. 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 leadto reduced reliability. Functional performance is specified over the recommended operating
conditions for power supply and temperature only. AC and DC device characteristics at orbeyond the absolute maximum ratings are not assumed or implied. All min and max voltage
limits are referenced to ground.
Parameter
Supply Voltage - VEE
Power Consumption
RF Input Voltage Swing (SE)Operational Temperature
Case Temperature
Storage Temperature
Operational Humidity
Storage Humidity

MinMax
-3.8
1.56
1.4
+85+100+100
98
98

-5-40
1010Units
VW
VºCºC
ºC%%

TERMINAL FUNCTIONSTERMINAL
NAME(NO.)vcc
2, 4, 6, 8, 10, 12
14, 16, 18, 20, 22, 24
vee
1, 7, 13, 19dp21dn23
q1p
17
q1n15
q2p
11q2n
9q3p5
q3n3

Rev.: 1.4

April 2011.

TYPE

DESCRIPTION

PS

Power supply: 0V (GND)

PS
Input

Power supply: -3.3V
Differential high-speed analog signal inputs

OutputDifferential high-speed analog signal outputs

OutputDifferential high-speed analog signal outputs

OutputDifferential high-speed analog signal outputs

2

ASNT6112-KMC

A d v a n c e da n dN o v e l
27 Via Porto Grande, Rancho Palos Verdes, CA, 90275.

S c i e n c e
T e c h n o l o g y
Ph. # 1-310-377-6029.

Fax # 1-310-377-9940.

ELECTRICAL CHARACTERISTICSPARAMETER
VEE
VCC
IEE
Power
Junction Temp.
Input (in)Bandwidth
CM Level
Input Noise Density
S11
Output (out)CM Level
S22
Small Signal Differential
Gain
Output referred 1dB
Compression Point
THD

MIN-3.10TYP
-3.3
0.0
410
1350
50

MAX
-3.5

UNIT
V
V
mA
mW
°C

COMMENTS±6%GHz
V
nV/sqrt(Hz)dB-3 dB

DC to 30GHz-0.55-8VdB

DC to 30GHz

0dB

At 10GHz2.7dBm

0.2%12525-0.5
1.5-10-0.6-0.4

Single-Ended,
20GHz
Vout=400mVp-p,SEPACKAGE INFORMATIONThe chip die is housed in a custom, 24-pin Kyocera metal-ceramic package (CQFP). Kyocera’s
dimensioned drawings are included in this document for reference. The package’s leads will be
trimmed to a length of 1.0mm.
After trimming, the package’s leads will be further processed as follows:
1. The lead’s gold plating will be removed per the following sections of J-STD-001D:
3.9.1 Solderability
3.2.2 Solder Purity Maintenance3.9.2 Solderability Maintenance3.9.3 Gold Removal
2.

The leads will be tinned with Sn63Pb37 solder.

It is recommended that the center heat slug located on the back side of the package not besoldered to ground or any other potential to help dissipate heat generated by the chip during
operation. For PCB information including footprint etc., please reference the package’s
associated Gerber file.

Rev.: 1.4April 2011.

3

ASNT6112-KMC

A d v a n c e da n d
N o v e l
27 Via Porto Grande, Rancho Palos Verdes, CA, 90275.

S c i e n c e
T e c h n o l o g yPh. # 1-310-377-6029.

Fax # 1-310-377-9940.

The part’s identification label is ASNT6112_KMC. The first 8 digits of the name before theunderscore identify the bare die including general circuit family, fabrication technology, specificcircuit type, and part version while the 3 digits after the underscore represent the package’s
manufacturer, type, and pin out count.
For ASNT6112_KMC:-ASNT6112 identifies that the part is an analog splitter
K represents the fact that it is a Kyocera package
M stands for metal ceramic
C means that the package has 24-pins

A date is included in the label of each part. This date allows ADSANTEC to track which parts
are from which run lot. The table below gives the lot history of this part and the associated date.
Lot
1

Date
04/10

This device complies with the Restriction of Hazardous Substances (RoHS) per EU 2002/95/EC
for all six substances.

REVISION HISTORY
Revision
1.4

Date
4-20111.3

3-2011

1.2
Previous release
Rev 1.1
1-20113-2011

Rev.: 1.4

April 2011.

Changes
Added Figure 2
Added lead trimming and processing info
Added Power Supply Configuration text
Revised Absolute Maximums Rating table
Revised Package Information section
Added PCB information
Added Absolute Maximums Rating table
Added packaging information
Added RoHS compliancy
Added revision history table
Updated power consumption value

4ASNT6112-KMC