HRF-AT4520
Preliminary
________________________________________________________________________________________________________
Web Site:
www.mysoiservices.com
Honeywell
Email:
mysoiservices@honeywell.com
Solid State Electronics Center
31.0 dB, DC-2.5GHz, 5 Bit
Parallel Digital Attenuator
Features
Very Low DC Power Consumption
Attenuation In Steps From 1 dB To 31 dB
Single Or Dual Power Supply Voltages
Parallel Data Interface
50 Ohm Compatible Impedance
Space Saving LPCC
TM
Surface Mount Packaging
Product Description
The Honeywell HRF-AT4520 is a 5-bit digital
attenuator that is ideal for use in broadband
communication system applications that require
accuracy, speed and low power consumption. The
HRF-AT4520 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-AT4520 in LPCCTM Package
RF Electrical Specifications @ + 25
o
C
Parameter
Test Condition
Frequency
Minimum
Typical
Maximum
Units
Insertion Loss*
DC 1.0 GHz
2.0 GHz
2.5 GHz
2.0
2.2
2.8
2.6
2.8
3.4
dB
dB
dB
1dB Compression*
VSS = 0V, Input Power
0.5 2.5 GHz
24
dBm
1dB Compression*
VSS = - VDD, Input Power
0.5 2.5 GHz
29
dBm
Input IP3*
VSS = 0V Two-tone inputs
Up To +5 dB @ 0 dB
Attenuation
0.5 2.5 GHz
38
dBm
Input IP3*
V
ss
= - V
DD
Two-tone inputs Up To + 5
dB @ 0 dB Attenuation
0.5 2.5 GHz
>38
dBm
Return Loss*
Any Combination of Bits
DC 2.5 GHz
11
13
dB
Attenuation Accuracy
(States < 8 dB are
GBD*)
All attenuation states
All attenuation states
All attenuation states
DC 1.0 GHz
2.0 GHz
2.5 GHz
+/-(0.45 + 3.0% of programmed IL)
+/-(0.55 + 4.5% of programmed IL)
+/-(0.6 + 5.5% of programmed IL)
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.
*Guaranteed by design
12001 State Highway 55
2002 4520W
Published February 2003 Page 1
Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4520
Preliminary
________________________________________________________________________________________________________
Web Site:
www.mysoiservices.com
Honeywell
Email:
mysoiservices@honeywell.com
Solid State Electronics Center
Functional Schematic
RF In
RF Out
S4
S3
S0
S1
S2
16dB
8dB
4dB
2dB
1dB
ESD, Buffer, Level Shift
DC Electrical Specifications @ + 25
o
C
Parameter
Minimum
Typical
Maximum
Units
V
DD
3.3
1
5.0
V
V
SS
-5.0
V
I
DD
Power Supply Current
35
uA
CMOS Logic level (0)
0
0.8
V
CMOS Logic level (1)
V
DD
0.8
V
DD
V
Input Leakage Current
10
uA
Note 1, the performance curves are for Vdd = +5.0 +/- 10%
Absolute Maximum Ratings
2
(
.
Parameter
Absolute Maximum
Units
Input Power
+ 35
dBm
V
DD
+6.0
V
V
SS
-5.5
V
ESD Voltage
400
V
Operating Temperature
-40 To +85
Degrees C
Storage Temperature
-65 To +125
Degrees C
Digital Inputs
V
DD
+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, Honeywells' HRF-AT4520 is immune to latch-up.
ESD Protection: Although the HRF-AT4520 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
2002 4520W
Published February 2003 Page 2
Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4520
Preliminary
________________________________________________________________________________________________________
Web Site:
www.mysoiservices.com
Honeywell
Email:
mysoiservices@honeywell.com
Solid State Electronics Center
Package Outline Drawing
Pin Configuration
This package conforms to the LPCC
TM
4 x 4 mm 24 lead body dimensions.
See ASAT LPCC Marketing Outline Dwg. # DGMJ00004 Latest Rev. at
http://www.asat.com
for additional dimensional information.
Pin
Function
Pin
Function
1
VDD
13
GROUND
2
GROUND
14
GROUND
3
GROUND
15
RF OUTPUT
4
RF INPUT
16
GROUND
5
GROUND
17
VSS
6
GROUND
18
DIGITAL GROUND
7
GROUND
19
S0
8
GROUND
20
S1
9
GROUND
21
S2
10
GROUND
22
S3
11
GROUND
23
S4
12
GROUND
24
OPEN
Note: Bottom ground plate must be grounded for proper RF performance.
Truth Table
S4
S3
S2
S1
S0
Output
0
0
0
0
0
1
1
0
0
0
0
1
0
1
0
0
0
1
0
0
1
0
0
1
0
0
0
1
0
1
0
0
0
0
1
Reference Input
1 dB
2 dB
4 dB
8 dB
16 dB
31 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
2002 4520W
Published February 2003 Page 3
Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4520
Preliminary
______________________
______________________
Web Site:
www.mysoiservices.com
Honeywell
Email:
mysoiservices@honeywell.com
Solid State Electronics Center
12001 State Highway 55
2002 4520W
Published February 2003 Page 4
Plymouth, Minnesota 55441-4799
1-800-323-8295
Evaluation Circuit Board
HRF-AT4520 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 switch performance in less than 10
minutes.
Evaluation Circuit Board Layout Design Details
Item
Description
PCB
Impedance Matched Multi-Layer FR4
Attenuator
HRF-AT4520 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-AT4520
Evaluation Board
Top View
HRF-AT4520
Honeywell
RF In
RF Out
VDD
VSS
Digital
Gnd
S0
S1
S2
S3
S4
Open
Gnd
HRF-AT4520
Preliminary
________________________________________________________________________________________________________
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.
All 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.
Attenuation State Accuracy
The Attenuation Accuracy curve with
vertical axis of +/- 1dB shows all states
better than +/- 0.5dB to 2GHz and better
than +/- 0.8dB to 4GHz.
12001 State Highway 55
2002 4520W
Published February 2003 Page 5
Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4520
Preliminary
________________________________________________________________________________________________________
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 higher
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
2002 4520W
Published February 2003 Page 6
Plymouth, Minnesota 55441-4799
1-800-323-8295
HRF-AT4520
Preliminary
________________________________________________________________________________________________________
Web Site:
www.mysoiservices.com
Honeywell
Email:
mysoiservices@honeywell.com
Solid State Electronics Center
Ordering Information
Ordering Number
Delivery Method
Units Per Shipment
HRF-AT4520-B
HRF-AT4520-TR
HRF-AT4520-E
In Chip Tubes
On Tape And Reel
3
On Individual Engineering Evaluation Board
Customer Specific, Usually Minimum
Of 50 Per Chip Tube
Customer Specific
One Board Per Box
(Note 3) Call Honeywell for details
LPCC
TM
is a registered Trademark of ASAT Ltd.
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
2002 4520W
Published February 2003 Page 7
Plymouth, Minnesota 55441-4799
1-800-323-8295
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