HRF-AT4521
Preliminary
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Ema il: myso i ser v i ces@ h on eyw ell.com Solid St at e El ect ron i cs C ent er
12001 St ate Hig hway 55
2002 4521W Published J une 2002 Page 1 Plymouth, Minnesota 55441-4799
1-800-323-8295
31.0 dB, DC-4GHz, 5 Bit
Serial Digital Attenuator
Features
Very Low DC Power Consumption
Attenuati on In Steps From 1 dB To 31 dB
Si ngle Or Dual Power Supply V oltages
Seri al Data Interface
50 Ohm Compatible Impedanc e
Space Sav ing LP CCTM S urfac e Mount P ac k aging
Product Description
The Honeywell HRF-AT4521 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-AT4521 is manufactured with Honeywell's
patented Silicon On Insulator (SOI) CMOS
manufacturing technology, which provides the
performance of GaAs with the economy and
integration capabiliti es of c onv entional CMOS.
RF Electrical Specifications @ + 25oC
Parameter Test Condition Frequency Minimum Typical Maximum Units
Insert i on Loss DC – 0.5 GHz
2.0 GHz
3.0 GHz
4.0 GHz
1.8
2.8
--
--
dB
dB
dB
dB
1dB Compression VSS = 0V, Input Power DC – 2.0 GHz
24 dBm
1dB Compression VSS = - VDD, Input Power DC – 2.0 GHz
29 dBm
Input IP3 VSS = 0V Two-tone inputs
Up To +5 dBm @ 0 dBm
Attenuation
DC – 2.0 GHz
38 dBm
Input IP3 Vss = - VDD
T wo-t on e in puts U p T o + 5
dBm @ 0 dBm Attenuation
DC – 2.0 GHz
>38 dBm
Return Loss* Any Combination o f Bits DC - 4.0 GHz 11 dB
Attenuation Accuracy All attenuation state s
All att en uation st ates
All att en uation st ates
All att en uation st ates
DC – 1.0 GHz
2.0 GHz
3.0 GHz
4.0 GHz
+/-(0.3 + 3% of programm ed I L)
+/-(0.3 + 3% of programm ed I L)
+/-(0.4 + 4% of programm ed I L)
+/-( 0. 5 + 6% of program m ed IL)
dB
dB
dB
dB
Trise, Tfall*
Ton, Toff (Tpd)
Transients
10% To 90%
50% Cntl To 90%/10%RF
In-Band
TBD
nS
nS
mV
T clock Period (Tprd)* T high / T low = ½ minimum clock period 50 nS
T data set up (Tsup)* Set up to rising edge of clock 5 nS
T data hold (Thld)* Data hold after rising edge of clock 2 nS
T latch set up (Tlsup)* Data set up to falling edge of OE 5 nS
0.01uF Deco upling Capacitors Required On Power S upply Rail s .
*B y desi gn
HRF-AT4521 in LPCC™ Package
HRF-AT4521
Preliminary
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Ema il: myso i ser v i ces@ h on eyw ell.com Solid St at e El ect ron i cs C ent er
12001 St ate Hig hway 55
2002 4521W Published J une 2002 Page 2 Plymouth, Minnesota 55441-4799
1-800-323-8295
Functional Schematic
DC Electrical Specifications @ + 25oC
Absolute Maximum Ratings2
(
.
Parameter Minimum Typical Maximum Units
VDD 3.3
1 5.0 V
VSS -5.0 V
IDD Power S upply Cur r ent 2 mA
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%
Parameter Absolute Maximum Units
Input Power + 35 dBm
VDD +6.0 V
VSS -5.5 V
ESD V oltage 400 V
Operating Temperature -40 To +85 Degrees C
Storage Tem per ature -65 T o +125 Degrees C
Digital I nputs VDD+0.6 max to VSS -0. 6 min V
Note 2) O peration of this Device beyond any of these par am eter s may cause perm anent dam age.
Latch-Up: Unlike conventional CMOS digital at t enuators, Honeywells' HRF-AT4521 is immune t o latch-up.
ESD Prot ection: Although the HRF-AT4521 contains ESD protection circuitry on all digital inputs, conventional pr ecauti ons should be
taken to ensure that the Absolute Maximum Ratin
g
s ar e not exce eded.
HRF-AT4521
Preliminary
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Ema il: myso i ser v i ces@ h on eyw ell.com Solid St at e El ect ron i cs C ent er
12001 St ate Hig hway 55
2002 4521W Published J une 2002 Page 3 Plymouth, Minnesota 55441-4799
1-800-323-8295
Package Outline Drawing
Pin Configuration
Serial Data Load
Serial dat a is shif ted int o the register on the risi ng edge of clock, MSB first. The OE falling edge m ust oc c ur prior to
any additional ri si ng cl oc k edges. See t he El ect ri c al S pec Table for AC parameters.
This package conform s to the LPCC
TM
4 x 4 mm 16 lead body dimensions.
See ASAT LPCC Mar keti ng Outlin e Dwg. # DGMJ00004 Latest Rev. at
http://www.asat.com for addit i onal dimensional information.
Pin Function Pin Function
1 VDD 9 GROUND
2 GROUND 10 RF OUTPUT
3 RF INPUT 11 GROUND
4 GROUND 12 VSS
5 GROUND 13 DIGITAL GROUND
6 GROUND 14 OE
7 GROUND 15 CLK
8 GROUND 16 DATA
HRF-AT4521
Preliminary
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Ema il: myso i ser v i ces@ h on eyw ell.com Solid St at e El ect ron i cs C ent er
12001 St ate Hig hway 55
2002 4521W Published J une 2002 Page 4 Plymouth, Minnesota 55441-4799
1-800-323-8295
Truth Table
Evaluation Circuit Board
Evaluation Circuit Board Layout Design Details
HRF-AT4521 Evalu at io n Board
Honey wel l's evaluati on boar d pr ov ides an
easy to use m ethod of evaluating the RF
performance of our attenuator. Sim ply
connect power, DC and RF si gnals to be
measurin
g
swit c h perform anc e i n less than 10
minutes.
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
Item Description
PCB Impedance Mat c hed M ulti-Lay er FR4
Attenuat or HRF-AT4521 Digital Attenuator
Chip Capaci tor Panasonic M odel E CU- E 1C103K B Q Capacitor, .01uf 0402 10% 16V
RF Connector Johnson Connectors Model 142-0701-801 SMA RF Coaxial Connector
DC Pi n Mil-Max Model 800-10- 064-10-001 Header P ins
HRF-AT4521
Preliminary
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Ema il: myso i ser v i ces@ h on eyw ell.com Solid St at e El ect ron i cs C ent er
12001 St ate Hig hway 55
2002 4521W Published J une 2002 Page 5 Plymouth, Minnesota 55441-4799
1-800-323-8295
Evalua tion Circuit Board Connections
Performance Curves
Insertion Loss
This Insertion Loss curve represents
the Min/Max conditions for the “0”
pass state versus all processin
g
and
temperature conditions. The Min
case is at –40C with the “Fast”
processin
g
condi ti ons. T he Max case
is at +85C with the “Slow” processin
g
condi tions. A ll ot her combi nati ons f al l
within that band. The typical 25C
case is l abeled +25C TT.
HRF-AT4521
Evaluation Board
Top View
HRF-AT4521
Honeywell
RF In RF Out
“0” = CMOS Low, “1” = CMOS High
VDD VSS
Digital
Gnd
Gnd DataCLK OE
HRF-AT4521
Preliminary
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Ema il: myso i ser v i ces@ h on eyw ell.com Solid St at e El ect ron i cs C ent er
12001 St ate Hig hway 55
2002 4521W Published J une 2002 Page 6 Plymouth, Minnesota 55441-4799
1-800-323-8295
Return Loss
Attenu ation State Accuracy
This Return Loss set of curves
represents the combi nati on of all Return
Loss cases for all attenuation settin
g
s.
All cases are better than –14dB Return
Loss at 4GHz.
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.
HRF-AT4521
Preliminary
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Ema il: myso i ser v i ces@ h on eyw ell.com Solid St at e El ect ron i cs C ent er
12001 St ate Hig hway 55
2002 4521W Published J une 2002 Page 7 Plymouth, Minnesota 55441-4799
1-800-323-8295
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 hi
g
he
r
P1dB compression values, supply Vss with
a ne
g
ative volta
g
e as shown in the next
curve.
The P1dB curve shows all states with a P1dB
compression at approximately 31dB input
power. The condit ions for this curve ar e V dd =
+5.0v and Vss = -5.0v.
HRF-AT4521
Preliminary
________________________________________________________________________________________________________
Web Site: www.mysoiservices.com Honeywell
Ema il: myso i ser v i ces@ h on eyw ell.com Solid St at e El ect ron i cs C ent er
12001 St ate Hig hway 55
2002 4521W Published J une 2002 Page 8 Plymouth, Minnesota 55441-4799
1-800-323-8295
Or der i ng In for m ation
LPCC™ is a registered T r adem ark of ASAT Ltd.
Honey well reserves the ri ght t o m ake changes to i m prove r eliabili t y, functi on or de sign. Honey well does not assum e
any l i abil it y arisi ng out of the appli cati on or use of any product or ci rcuit descri bed herei n; nei ther does it convey any
li c ense under its patent rights nor the ri ghts of others.
Ordering Number Delivery Met ho d Units Per Shipmen t
HRF-AT4521-B
HRF-AT4521-TR
HRF-AT4521-E
In Chip Tubes
On T ape A nd R eel3
On Individual Engi neer ing Evaluati on Board
Customer Specific, Usually Mi nimum
Of 50 Per Chip Tube
Customer Spec ific
On e Bo ard Per Bo x
(Note 3) Call Honeywell for details