v01.0801
MICROWAVE CORPORATION
HMC110
1 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, DC - 10 GHz
Features
Bandwidth: DC - 10 GHz
Low Insertion Loss: 6.2 dB
31 dB Attenuation Range
Fast Switching: 6 nS
Typical Applications
• Base Station Infrastructure
• Portable Wireless
2
ATTENUATORS - CHIP
• CATV & DBS
• MMDS & WirelessLAN
• Wireless Local Loop
• UNII & HiperLAN
Functional Diagram
General Description
The HMC110 chip is a 5-bit digital attenuator with
a 31 dB range in 1 dB steps. Each bit is activated
by applying 0V to port A and disabled with -5 V to
port A. Port B (as applicable) is biased with the
complement of port A. See SMT packaged version
HMC110G16 (hermetic).
Electrical Specifications,
T
A
= +25° C, with 0/-5V Control
Parameter
Reference Inser tion Loss
Attenuation Range
Return Loss
Attenuation Accuracy:
1 - 7 dB States
8 - 15 dB States
16 - 23 dB States
24 - 31 dB States
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
Input Power for 0.2 dB Compression
Min Atten:
Max Atten:
Min Atten:
Max Atten:
DC - 10 GHz
3
6
+22
+5
+44
+32
ns
ns
dBm
dBm
dBm
dBm
Frequency
DC - 5 GHz
DC - 10 GHz
DC - 10 GHz
DC - 2 GHz
DC - 10 GHz
Min.
Typ.
5.2
6.2
Max.
6.0
7.0
Units
dB
dB
dB
dB
dB
27
12
8
31
15
10
DC - 10 GHz
DC - 10 GHz
DC - 10 GHz
DC - 10 GHz
+/- 0.5 dB +/- 5% of Setting Max.
+/- 0.6 dB +/- 5% of Setting Max.
+/- 0.6 dB +/- 8% of Setting Max.
+/- 0.6 dB +/- 10% of Setting Max.
dB
dB
dB
dB
0.5 - 10 GHz
Input Third Order Intercept
0.5 - 10 GHz
2-2
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Visit us at www.hittite.com, or Email at sales@hittite.com
v01.0801
MICROWAVE CORPORATION
HMC110
1 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, DC - 10 GHz
Insertion Loss
0
INSERTION LOSS (dB)
-2
-4
-6
-8
-10
0
2
4
6
8
10
FREQUENCY (GHz)
Relative Attenuation
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-30
-32
-34
-36
RELATIVE ATTENUATION (dB)
2
0
2
4
6
FREQUENCY (GHz)
8
10
Relative Phase
90
RELATIVE PHASE (DEG)
70
50
30
16 dB
8 dB
10
-10
0
2
4
6
FREQUENCY (GHz)
1 dB, 2 dB, 4 dB
8
10
Return Loss
0
RETURN LOSS (dB)
31 dB
-10
-20
-30
0
2
4
6
8
10
FREQUENCY (GHz)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Visit us at www.hittite.com, or Email at sales@hittite.com
2-3
ATTENUATORS - CHIP
v01.0801
MICROWAVE CORPORATION
HMC110
1 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, DC - 10 GHz
Truth Table
Control Input
4 dB Bit
A1
High
B1
Low
Low
Low
High
Low
Low
1 dB
A2
High
Low
High
High
High
High
2 dB
A3
High
High
Low
High
High
High
8 dB Bit
A4
High
High
High
High
Low
High
B4
Low
Low
Low
Low
High
Low
16 dB Bit
A5
High
High
High
High
High
Low
B5
Low
Low
Low
Low
Low
High
Ref
1dB
2dB
4dB
8dB
16dB
Att
Set
Control Voltages
State
Low
High
Bias Condition
0 to -0.2V @ 20 uA Max.
-3V @50uA Typ to -8V @500 uA Max.
2
ATTENUATORS - CHIP
High
H igh
Low
H igh
High
Absolute Maximum Ratings
Control Voltage Range
Storage Temperature
Operating Temperature
RF Input Power (0.5 - 4 GHz)
Inser tion Loss State
Any Attenuation State
+0.5 to -8.5 Vdc
-65 to +150 deg C
-55 to +125 deg C
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
+27 dBm
+13 dBm
Outline Drawing
(See DIE HANDLING NOTES in section 8)
1.676 (0.066)
0.178 (0.007)
0.102 (0.004)
0.127 (0.005)
9 equal spaces @ 0.152 (0.006) each
0.279 (0.011)
0.864 (0.034)
A1
RF1
B1
A2
A3 A4
4306
B4
A5
B5
A6
B6
RF2
0.102 (0.004)
0.076 (0.003)
ALL DIMENSIONS IN MILLIMETERS (INCHES)
ALL TOLERANCES ARE +/- 0.025 (0.001)
DIE THICKNESS IS 0.203 (0.008), BACKSIDE IS NOT METALLIZED
BOND PADS ARE 0.100 (0.004) SQUARE
ALL UNLABELED BOND PADS ARE GROUND.
BOND PAD METALLIZATION: GOLD.
BACKSIDE METALLIZATION: NONE
2-4
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Visit us at www.hittite.com, or Email at sales@hittite.com
v01.0801
MICROWAVE CORPORATION
HMC110
1 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, DC - 10 GHz
Suggested Driver Circuit
2
ATTENUATORS - CHIP
2-5
Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current.
*Recommended values to suppress unwanted RF signals at A/B control lines. You may adjust for switching speed con-
siderations.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Visit us at www.hittite.com, or Email at sales@hittite.com
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