Hittite HMC110C14 Gaas mmic smt 5 - bit digital attenuator dc - 6 ghz Datasheet

HMC110C14
MICROWAVE CORPORATION
GaAs MMIC SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz
SEPTEMBER 1999
Features
General Description
BANDWIDTH: DC - 6 GHz
The HMC110C14 is a 5-bit digital attenuator in a non-hermetic 14 lead surface
mount package. Each bit is activated by
applying a 0V control, and then disabled
by applying -5 V control to the specified
control pin. The five primary attenuation
states can be activated independently, or
collectively for a maximum combined attenuation level of 31 dB. See the nonhermetic DC-2 GHz HMC110G16. The
HMC110C14 may be used for 2.4 GHz
ISM, VSAT, 5.2 GHz UNII, 5.8 GHz ISM, or
microwave radio applications.
BIT LEVELS: 1, 2, 4, 8, 16 dB
31 dB ATTENUATION RANGE
Attenuators
2
Guaranteed Performance With 0/-5V Control, -55 to +85 deg C
Parameter
Freq.
Min.
Typ.
Max.
Units
5.5
6.5
dB
Inser tion Loss
DC-6 GHz
Attenuation Range
DC-6 GHz
27
31
dB
Return Loss (Input)
DC-6 GHz
8
12
dB
Return Loss (Output)
DC-6 GHz
10
14
dB
Attenuation Accuracy:
1 - 7 dB States
8 - 15 dB States
16 - 23 dB States
24 - 31 dB States
DC-6 GHz
DC-6 GHz
DC-6 GHz
DC-6 GHz
+ / - 0.5
+ / - 0.6
+ / - 0.6
+ / - 0.6
Switching Characteristics
tRISE, tFALL (10/90%)
tON, tOFF (50% CTL to 10/90% RF)
dB
dB
dB
dB
+/- 5% of Setting Max.
+/- 5% of Setting Max.
+/- 8% of Setting Max.
+/- 10% of Setting Max.
dB
dB
dB
dB
DC-6 GHz
3
6
ns
ns
Input Power for 0.2 dB Comp
Min Atten:
Max Atten:
0.5 - 6
+22
+ 5
dB m
dB m
Input Third Order Intercept Point
Min Atten:
Max Atten:
0.5 - 6
+44
+32
dB m
dB m
12 Elizabeth Drive, Chelmsford, MA 01824
2 - 10
Phone: 978-250-3343
Fax: 978-250-3373
Web Site: www.hittite.com
MICROWAVE CORPORATION
HMC110C14 SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz
SEPTEMBER 1999
Insertion Loss
Relative Attenuation
0
-2
-4
-6
-8
-5
4 dB
-10
1 dB
8 dB
-15
2
16 dB
-20
-25
31 dB
-30
-35
-10
0
1
2
3
4
5
6
7
0
8
1
2
3
4
5
6
7
8
7
8
FREQUENCY (GHz)
FREQUENCY (GHz)
Input Return Loss
Relative Phase
0
40
31 dB
30
INPUT RETURN LOSS (dB)
RELATIVE PHASE (deg.)
2 dB
20
16 dB
10
8 dB
0
-5
2 dB
31 dB
-10
16 dB
-15
-20
REF
4 dB
-25
8 dB
-30
1,2,4 dB
1 dB
-35
-10
0
1
2
3
4
5
6
7
0
8
1
2
3
4
5
6
FREQUENCY (GHz)
FREQUENCY (GHz)
Output Return Loss
OUTPUT RETURN LOSS (dB)
0
-5
16, 31 dB
-10
4 dB
-15
8 dB
-20
REF
-25
1 dB
2 dB
-30
-35
0
1
2
3
4
5
6
7
8
FREQUENCY (GHz)
12 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Web Site: www.hittite.com
2 - 11
Attenuators
RELATIVE ATTENUATION (dB)
INSERTION LOSS (dB)
0
MICROWAVE CORPORATION
HMC110C14 SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz
SEPTEMBER 1999
Schematic
A1 (8) B1 (7)
A2 (6)
A3 (5)
A4 (4) B4 (3) A5 (2) B5 (1)
Attenuators
1dB
4dB
2dB
8dB
RF2 (13)
RF1 (9)
2
16dB
HMC110
GND
GND
GND
GND
GND
Pin # = ( ); Pins 10 - 12, 14 and package bottom are GND.
Absolute Maximum Ratings
Truth Table
Control Voltage Range
+0.5 to -8.5 Vdc
Storage Temperature
-65 to +150 deg C
Operating Temperature
RF Input Power (0.5 - 4 GHz)
Insertion Loss State
Any Attenuation State
-55 to +125 deg C
4 dB Bit
1dB
2dB
+27 dBm
+13 dBm
A1
B1
A2
A3
A4
B4
A5
B5
Hi
Lo
Hi
Hi
Hi
Lo
Hi
Lo
Ref
Hi
Lo
Lo
Hi
Hi
Lo
Hi
Lo
1dB
Hi
Lo
Hi
Lo
Hi
Lo
Hi
Lo
2dB
Lo
Hi
Hi
Hi
Hi
Lo
Hi
Lo
4dB
Hi
Lo
Hi
Hi
Lo
Hi
Hi
Lo
8dB
Hi
Lo
Hi
Hi
Hi
Lo
Lo
Hi
16dB
Control Input
Control Voltages
State
Bias Condition
Low
0 to -0.2V@20uA Max
High
-3V@50uA Typ to -8V@500uA Max
8dB Bit
16dB Bit
Att
Set
Any combination of above states will provide an attenuation
approximately equal to the sum of the bits selected.
12 Elizabeth Drive, Chelmsford, MA 01824
2 - 12
Phone: 978-250-3343
Fax: 978-250-3373
Web Site: www.hittite.com
MICROWAVE CORPORATION
HMC110C14 SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz
SEPTEMBER 1999
Outline
0.004 COPLANARITY MAX
(0.10)
0.350
0.105 MAX
(2.66)
A1
RF
1
G
ND
G
ND
G
ND
G
ND
RF
2
PIN 14
CHAMFERED LEAD
HMC
110C14
0.285/0.295
(7.24/7.49)
0/7 Deg.
RF GND PLANE
COPLANAR WITH LEADS
2
0.157/0.163
(3.99/4.14)
B1
A2
A3
Attenuators
PIN 1
A4
B4
A5
B5
0.020/0.040
(0.51/1.02)
0.007/0.009 TYP
(0.18/0.23)
0.330
1.
0.137/0.143
(3.48/3.63)
2.
3.
RF GND PLANE
COPLANAR WITH LEADS
0.050 TYP
(1.27)
0.016 +/- 0.003 TYP
(0.51 +/- 0.08)
4.
5.
MATERIAL:
A) PACKAGE BODY & COVER : WHITE ALUMINA (92%)
B) LEADS & PACKAGE BOTTOM: COPPER
PLATING : ELECTROLYTIC GOLD 100 - 200 MICRONICHES
OVER ELECTROLYTIC NICKEL 100 TO 200 MICROINCHES.
DIMENSIONS ARE IN INCHES (MILLIMETERS).
UNLESS OTHERWISE SPECIFIED ALL TOL. ARE ±0.005(±0.13).
THE PACKAGE IS RF GROUND AND MUST BE SOLDERED TO THE PCB
RF GROUND.
PACKAGE LENGTH AND WIDTH DIMENSIONS SHOWN DO NOT INCLUDE
LID SEAL PROTRUSION. ALLOWABLE PROTRUSION SHALL BE 0.005
(0.127MM) PER SIDE.
Suggested Driver Circuit
100Ω *
Vz=5.1V
Izt=50uA
A
COMPENSATED
100pF *
DEVICES
CD4689
TTL
OR
CMOS
VCC
VCC
GND
GND
GaAs
ATTENUATOR
CONTROL
100Ω *
B
10K
74HCT04 (TTL)
74HC04 (CMOS)
100pF *
-5 VDC
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 considerations.
12 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Web Site: www.hittite.com
2 - 13
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