HMC603QS16
/
603QS16E
v00.0805
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, 0.7 - 3.8 GHz
Typical Applications
Features
0.5 dB LSB Steps to 15.5 dB
Single Positive Control Per Bit
± 0.15 dB Typical Bit Error
High Input IP3: +50 dBm
QSOP16 SMT Package
6
ATTENUATORS - SMT
The HMC603QS16 / HMC603QS16E is ideal for:
• Cellular/3G Infrastructure
• ISM, MMDS
• WLAN, WiMAX, & WiBro
Functional Diagram
General Description
The HMC603QS16 & HMC603QS16E are general
purpose broadband 5-bit positive control GaAs IC
digital attenuators in 16 lead QSOP surface mount
plastic packages. Covering 0.7 to 3.8 GHz, the inser-
tion loss is less than 1.9 dB typical. The attenuator
bit values are 0.5 (LSB), 1, 2, 4 and 8 dB for a total
attenuation of 15.5 dB. Attenuation accuracy is excel-
lent at ± 0.15 dB typical with an IIP3 of +50 dBm.
Five bit control voltage inputs, toggled between 0
and +3 to +5V, are used to select each attenuation
state at less than 1 uA each. A single Vdd bias of
+3 to +5V applied through an external 5K Ohm
resistor is required.
Electrical Specifications,
T
A
= +25° C, Vdd= +3V to +5V & Vctl= 0/Vdd (Unless Otherwise Stated)
Parameter
Frequency (GHz)
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 3.0 GHz
3.0 - 3.8 GHz
Min.
Typical
1.3
1.6
1.9
2.6
15.5
0.7 - 1.4 GHz
1.4 - 3.0 GHz
3.0 - 3.8 GHz
18
20
15
Max.
1.6
1.9
2.2
3.0
Units
dB
dB
dB
dB
dB
dB
dB
dB
Insertion Loss
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
All States
Vdd = 5V
Vdd = 3V
REF - 2 dB States
2.5 - 15.5 dB States
0.7 -2.2 GHz
2.2 - 3.8 GHz
0.7 - 3.8 GHz
0.7 - 3.8 GHz
± (0.2 + 2% of Atten. Setting) Max.
± (0.3 + 3% of Atten. Setting) Max.
29
28
53
48
1.6
1.6
dB
dB
dBm
dBm
dBm
dBm
μs
μs
Input Power for 0.1 dB Compression
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
0.7 - 3.8 GHz
6 - 188
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HMC603QS16
/
603QS16E
v00.0805
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, 0.7 - 3.8 GHz
Return Loss RF1, RF2
Insertion Loss
0
-0.5
INSERTION LOSS (dB)
RETURN LOSS (dB)
-1
-1.5
-2
-2.5
-3
-3.5
-4
0.5
+25 C
+85 C
-40 C
(Only Major States are Shown)
0
-5
-10
8 dB
I.L
2 dB
15.5 dB
4 dB
6
ATTENUATORS - SMT
-15
-20
-25
-30
-35
-40
0.5
0.5 dB
1 dB
1
1.5
2
2.5
3
3.5
4
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
FREQUENCY (GHz)
Normalized Attenuation
(Only Major States are Shown)
0
NORMALIZED ATTENUATION (dB)
-2
-4
BIT ERROR (dB)
-6
-8
-10
-12
-14
-16
-18
0.5
Bit Error vs. Attenuation State
0.5
0.4
0.3
2.4 GHz
3.5 GHz
0.2
0.1
0
-0.1
-0.2
-0.3
0.5
0.9 GHz
1.9 GHz
1
1.5
2
2.5
3
3.5
4
2
3.5
5
6.5
8
9.5
11
12.5
14
15.5
FREQUENCY (GHz)
ATTENUATION STATE (dB)
Bit Error vs. Frequency
(Only Major States are Shown)
0.6
Relative Phase vs. Frequency
(Only Major States are Shown)
40
15.5 dB
RELATIVE PHASE (deg)
0.3
BIT ERROR (dB)
4 dB
0.5 dB
1 dB
20
8 dB
4 dB
0
0
-0.3
15.5 dB
2 dB
8 dB
-20
0.5, 1, 2 dB
-0.6
0.5
1
1.5
2
2.5
3
3.5
4
-40
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
FREQUENCY (GHz)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
6 - 18
HMC603QS16
/
603QS16E
v00.0805
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, 0.7 - 3.8 GHz
Worst Case Step Error
Truth Table
Control Voltage Input
V1
8 dB
High
High
High
High
High
Low
Low
V2
4 dB
High
High
High
High
Low
High
Low
V3
2 dB
High
High
High
Low
High
High
Low
V4
1 dB
High
High
Low
High
High
High
Low
V5
0.5 dB
High
Low
High
High
High
High
Low
Attenuation
Setting
RF1 - RF2
Reference I.L.
0.5 dB
1 dB
2 dB
4 dB
8 dB
15.5 dB Max.
Atten.
6
STEP ERROR (dB)
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
0.5
1
1.5
2
2.5
3
3.5
4
ATTENUATORS - SMT
FREQUENCY (GHz)
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Bias Voltage & Current
Vdd = +5.0 Vdc ± 10%
Vdd
(VDC)
+3.0
+5.0
Idd (Typ.)
(μA)
4.0
5.0
Control & Bias Voltages
State
Low
High
0.00.20.2
Bias Condition
0 to +0.2V @ 1.0 μA Max.
Vdd
±
0.2V @ 0.5 μA Max.
Note: Vdd = +3V to +5V
±
0.2V
Application Circuit
Note:
DC Blocking Capacitors C1 & C2 are required on RF1
& RF2. Choose C1 = C2 = 100 ~ 300 pF to allow lowest
customer specific frequency to pass with minimal loss.
R1= 5K Ohm is required to supply voltage to the circuit
through either Pin 9 or Pin 16.
6 - 190
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HMC603QS16
/
603QS16E
v00.0805
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, 0.7 - 3.8 GHz
Absolute Maximum Ratings
RF Input Power (0.7 - 3.8 GHz)
Control Voltage (V1 - V5)
Bias Voltage (Vdd)
Channel Temperature
Thermal Resistance
Storage Temperature
Operating Temperature
ESD Sensitivity (HBM)
+30 dBm
Vdd + 0.5 Vdc
+8.0 Vdc
150 °C
174 °C/W
-65 to +150 °C
-40 to +85 °C
Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
6
ATTENUATORS - SMT
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS].
3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
5. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
Package Information
Part Number
HMC603MS10
HMC603MS10E
Package Body Material
Low Stress Injection Molded Plastic
RoHS-compliant Low Stress Injection Molded Plastic
Lead Finish
Sn/Pb Solder
100% matte Sn
MSL Rating
MSL1
MSL1
[1]
Package Marking
HMC603
XXXX
HMC603
XXXX
[3]
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
6 - 19
HMC603QS16
/
603QS16E
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, 0.7 - 3.8 GHz
v00.0805
Pin Descriptions
6
ATTENUATORS - SMT
Pin Number
1, 2, 8, 10 - 15
Function
GND
Description
These pins must be DC grounded.
Interface Schematic
3-7
V1 - V5
See truth table and control voltage table.
9
RF2
This pin is DC coupled and matched to 50 Ohm.
A blocking capacitor is required.
16
RF1
This pin is DC coupled and matched to 50 Ohm.
A blocking capacitor is required.
6 - 192
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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