HRF-AT4610
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Email: mysoiservices@honeywell.com Solid State Electronics Center
31.5 dB, DC-4GHz, 6 Bit
Parallel Digital Attenuator
Features
x Very Low DC Power Consumption
x Attenuation In Steps From 0.5 dB To 31.5 dB
x Single Or Dual Power Supply Voltages
x Parallel Data Interface
x 50 Ohm Compatible Impedance
x Space Saving VQFN Surface Mount Packaging
Product Description
The Honeywell HRF-AT4610 is a 6-bit digital
attenuator that is ideal for use in broadband
communication system applications that require
accuracy, speed and low power consumption. The
HRF-AT4610 is manufactured with Honeywell's
patented Silicon On Insulator (SOI) CMOS
manufacturing technology, which provides the
performance of GaAs with the economy and
integration capabilities of conventional CMOS.
HRF-AT4610 in VQFN Package
RF Electrical Specifications @ + 25oC
Results @ Vdd = 5.0 +/- 10%, Vss = 0 unless otherwise stated, Z0 = 50 Ohms
Contact Honeywell for relative performance at other supply configurations
Parameter Test Condition Frequency Minimum Typical Maximum Units
Insertion Loss DC – 1.0 GHz
1.0 – 2.5 GHz
3.0 GHz
4.0 GHz
2.5
3.0
3.6
5.5
2.9
3.5
3.9
5.8
dB
dB
dB
dB
1dB Compression VSS = 0V, Input Power 0.5 – 2.0 GHz 24 dBm
1dB Compression VSS = - VDD, Input Power 0.5 – 2.0 GHz 29 dBm
Input IP3 VSS = 0V Two-tone inputs
Up To +5 dBm @ 0 dBm
Attenuation
0.5 – 2.0 GHz 38 dBm
Input IP3 Vss = - VDD
Two-tone inputs Up To + 5
dBm @ 0 dBm Attenuation
0.5 – 2.0 GHz >38 dBm
Return Loss* Any Bit or Combination DC - 3.0 GHz 11 dB
Attenuation Accuracy All attenuation states
All attenuation states
All attenuation states
All attenuation states
DC – 1.0 GHz
2.5 GHz
3.0 GHz
4.0 GHz
+/-(0.3 + 3% of programmed IL)
+/-(0.3 + 3% of programmed IL)
+/-(0.4 + 5% of programmed IL)
+/-(0.4 + 5.5% of programmed IL)
dB
dB
dB
dB
Trise, Tfall*
Ton, Toff (Tpd)
Transients
10% To 90%
50% Cntl To 90%/10%RF
In-Band
10
15
30
nS
nS
mV
0.01uF Decoupling Capacitors Required On Power Supply Rails
*By design
12001 State Highway 55
2004 4610W Published August 2004 Page 1 Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4610
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Email: mysoiservices@honeywell.com Solid State Electronics Center
Functional Schematic
RF OutRF In
S0S1S2S3S4S5
16dB 8dB 4dB 2dB 1dB .5dB
ESD, Buffer, Level Shift
DC Electrical Specifications @ + 25oC
Parameter Minimum Typical Maximum Units
VDD 3.315.0 5.5 V
VSS -5.0 V
IDD Power Supply Current 35 uA
CMOS Logic level (0) 0 0.8 V
CMOS Logic level (1) VDD – 0.8 VDD V
Input Leakage Current 10 uA
Note 1, the performance curves are for Vdd = +5.0 +/- 10%
Absolute Maximum Ratings2
(
.
Parameter Absolute Maximum Units
Input Power + 35 dBm
VDD +6.0 V
VSS -5.5 V
ESD Voltage 400 V
Operating Temperature -40 To +85 Degrees C
Storage Temperature -65 To +125 Degrees C
Digital Inputs VDD+0.6 max to -0.6 min V
(Note 2) Operation of this Device beyond any of these parameters may cause permanent damage.
Latch-Up: Unlike conventional CMOS digital attenuators, Honeywell's HRF-AT4610 is immune to latch-up.
ESD Protection: Although the HRF-AT4610 contains ESD protection circuitry on all digital inputs, conventional precautions should
be taken to ensure that the Absolute Maximum Ratings are not exceeded.
12001 State Highway 55
2004 4610W Published August 2004 Page 2 Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4610
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Email: mysoiservices@honeywell.com Solid State Electronics Center
Package Outline Drawing
This package conforms to the JEDEC Standard MO-220, 4 x 4 mm 24 lead body
dimensions.
See Application Note 310, VQFN Surface Mount Application, on our web site at
http://www.mysoiservices.com/ for assembly recommendations.
Pin Configuration
Pin Function Pin Function
1 VDD 13 GROUND
2 GROUND 14 GROUND
3 GROUND 15 RF OUTPUT
4 RF INPUT 16 GROUND
5GROUND17 VSS
6 GROUND 18 GROUND
7GROUND19 S0
8GROUND20 S1
9GROUND21 S2
10 GROUND 22 S3
11 GROUND 23 S4
12 GROUND 24 S5
Note: Bottom ground plate must be grounded for proper RF performance.
Truth Table
S5 S4 S3 S2 S1 S0 Output
0
0
0
0
0
0
1
1
0
0
0
0
0
1
0
1
0
0
0
0
1
0
0
1
0
0
0
1
0
0
0
1
0
0
1
0
0
0
0
1
0
1
0
0
0
0
0
1
Reference Input
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
Operation: Data on parallel input “S” pins are independently buffered and presented to the RF attenuator circuits.
"0" = CMOS Low, "1" = CMOS High.
12001 State Highway 55
2004 4610W Published August 2004 Page 3 Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4610
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Email: mysoiservices@honeywell.com Solid State Electronics Center
Evaluation Circuit Board
HRF-AT4610 Evaluation Board
Honeywell's evaluation board provides an
easy to use method of evaluating the RF
performance of our attenuator. Simply
connect power, DC and RF signals to be
measuring attenuator performance in less
than 10 minutes.
Evaluation Circuit Board Layout Design Details
Item Description
PCB Impedance Matched Multi-Layer FR4
Attenuator HRF-AT4610 Digital Attenuator
Chip Capacitor Panasonic Model ECU-E1C103KBQ Capacitor, .01uf 0402 10% 16V
RF Connector Johnson Connectors Model 142-0701-801 SMA RF Coaxial Connector
DC Pin Mil-Max Model 800-10-064-10-001 Header Pins
Evaluation Circuit Board Connections
HRF-AT4610
Evaluation Board
Top View
HRF-AT4610
Honeywell
VDD
VSS
Gnd
RF In RF Out
S0S1S2S3S4S5
Gnd
12001 State Highway 55
2004 4610W Published August 2004 Page 4 Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4610
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Email: mysoiservices@honeywell.com Solid State Electronics Center
Performance Curves
Insertion Loss
This Insertion Loss curve represents the
Min/Max conditions for the “0” pass
state versus all processing and
temperature conditions. The Min case
is at –40C with the “Fast” processing
conditions. The Max case is at +85C
with the “Slow” processing conditions.
A
ll other combinations fall within that
band. The typical 25C case is labeled
+25C TT.
Return Loss
This Return Loss set of curves
represents the combination of all Return
Loss cases for all attenuation settings.
All cases are better than –14dB Return
Loss at 4GHz.
12001 State Highway 55
2004 4610W Published August 2004 Page 5 Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4610
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Email: mysoiservices@honeywell.com Solid State Electronics Center
Step Accuracy
AT4610 Step Accuracy Vs Attenuation State
-1.5
-1.3
-1.1
-0.9
-0.7
-0.5
-0.3
-0.1
0.1
0.3
0.5
-3 2 7 12 17 22 27 32
Programmed Attenuation (dB)
Step To Step Delta (dB)
StepAcc@0.01GHz
StepAcc@0.1GHz
StepAcc@0.5GHz
StepAcc@1GHz
StepAcc@2GHz
StepAcc@3GHz
StepAcc@4GHz
Relative Accuracy
AT4610 Relative Accuracy Vs Attenuation
-1.5
-1
-0.5
0
0.5
1
1.5
-3 2 7 12 17 22 27 32
Programmed Attenuation (dB)
Relative Accuracy (dB)
RelAcc@0.01GHz
RelAcc@0.1GHz
RelAcc@0.5GHz
RelAcc@1GHz
RelAcc@2GHz
RelAcc@3GHz
RelAccMax
RelAccMin
12001 State Highway 55
2004 4610W Published August 2004 Page 6 Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4610
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Email: mysoiservices@honeywell.com Solid State Electronics Center
Compression
The P1dB curve shows all states with a
P1dB compression at approximately 23dB
input power. The conditions for this curve
are Vdd = +5.0v and Vss = 0v. For highe
r
P1dB compression values, supply Vss
with a negative voltage as shown in the
next curve.
The P1dB curve shows all states with a
P1dB compression at approximately 31dB
input power. The conditions for this curve
are Vdd = +5.0v and Vss = -5.0v.
12001 State Highway 55
2004 4610W Published August 2004 Page 7 Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4610
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Email: mysoiservices@honeywell.com Solid State Electronics Center
Ordering Information
Ordering Number Delivery Method Units Per Shipment
HRF-AT4610-TR
HRF-AT4610-E
On Tape And Reel3
On Individual Engineering Evaluation Board
2500 Units per Reel
One Board Per Box
(Note 3) Call Honeywell for details
Honeywell reserves the right to make changes to improve reliability, function or design. Honeywell does not assume
any liability arising out of the application or use of any product or circuit described herein; neither does it convey any
license under its patent rights nor the rights of others.
12001 State Highway 55
2004 4610W Published August 2004 Page 8 Plymouth, Minnesota 55441-4799
1-800-323-8295
