HMC288MS8E [HITTITE]
2 dB LSB GaAs MMIC 3-BIT DIGITAL ATTENUATOR, 0.7 - 3.7 GHz; 2分贝LSB的GaAs MMIC 3位数字衰减器， 0.7 - 3.7 GHz的
| 型号： | HMC288MS8E |
| 厂家： | 
HITTITE MICROWAVE CORPORATION |
| 描述： | 2 dB LSB GaAs MMIC 3-BIT DIGITAL ATTENUATOR, 0.7 - 3.7 GHz |
| 文件： | 总6页 (文件大小：185K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HMC288MS8 / 288MS8E
v±1.±7±5
2 dB LSB GaAs MMIC 3-BIT DIGITAL
ATTENUATOR, 0.7 - 3.7 GHz
5
Typical Applications
Features
The HMC288MS8 / HMC288MS8E is ideal for:
• Cellular
2 dB LSB Steps to 14 dB
Single Positive Control Per BIT
Monotonic: ±±0 dB Bit Error Typical
Miniature MSOP-8 Package, 14.8mm2
• PCS, ISM, MMDS
• WLL applications
Functional Diagram
General Description
The HMC288MS8 & HMC288MS8E are broadband
0-bit positive control GaAs IC digital attenuators in 8
lead MSOP surface mount plastic packages. Cover-
ing ±.7 to 0.7 GHz, the insertion loss is typically less
than 1.2 to 1.8 dB. The attenuator bit values are 2
(LSB), 4, and 8 dB for a total attenuation of 14 dB.
Accuracy is excellent at ± ±.0 dB typical with an
IIP0 of up to +51 dBm. Three bit control voltage inputs,
toggled between ± and +0 to +5V, are used to select
each attenuation state at less than 5± uA each. A sin-
gle Vdd bias of +0 to +5V applied through an external
5K Ohm resistor is required while occupying less than
14.8 mmꢀ.
Electrical Specifications,
TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Parameter
Frequency
Min.
Typical
Max.
Units
±.7 - 1.4 GHz
1.4 - 2.0 GHz
2.0 - 2.7 GHz
2.7 - 0.7 GHz
1.±
1.0
1.5
1.7
1.4
1.7
2.±
2.0
dB
dB
dB
dB
Insertion Loss
Attenuation Range
±.7 - 0.7 GHz
14
dB
±.7 - 1.4 GHz
1.4 - 2.0 GHz
2.0 - 2.7 GHz
2.7 - 0.7 GHz
14
11
1±
9
17
15
14
12
dB
dB
dB
dB
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
± ±.0 + 03 of Atten. Setting Max
± ±.2 + 03 of Atten. Setting Max
± ±.0 + 03 of Atten. Setting Max
± ±.0 + 43 of Atten. Setting Max
All Attenuation States
All Attenuation States
All Attenuation States
All Attenuation States
±.7 - 1.4 GHz
1.4 - 2.0 GHz
2.0 - 2.7 GHz
2.7 - 0.7 GHz
dB
dB
dB
dB
5V
0V
25
22
dBm
dBm
Input Power for ±.1 dB Compression
±.7 - 0.7 GHz
±.7 - 0.7 GHz
Input Third Order Intercept Point
(Two-tone Input Power = ±dBm Each Tone)
5V
0V
51
47
dBm
dBm
Switching Characteristics
56±
6±±
ns
ns
±.7 - 0.7 GHz
tRISE, tFALL (1±/9±3 RF)
tON, tOFF (5±3 CTL to 1±/9±3 RF)
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
5 - 34
HMC288MS8 / 288MS8E
v±1.±7±5
2 dB LSB GaAs MMIC 3-BIT DIGITAL
ATTENUATOR, 0.7 - 3.7 GHz
Return Loss RF1, RF2
5
(Only Major States are Shown)
Insertion Loss
0
-0.5
-1
0
2 dB
4 dB
-5
8 dB
14 dB
-1.5
-2
-10
-15
-20
-25
-2.5
-3
+25 C
-40 C
+85 C
-3.5
-4
0.5
1
1.5
2
2.5
3
3.5
4
4
4
0.5
1
1.5
2
2.5
3
3.5
4
14
4
FREQUENCY (GHz)
FREQUENCY (GHz)
Absolute Bit Error
vs. Attenuation State
1.5
Normalized Attenuation
(Only Major States are Shown)
0
-2
-4
-6
-8
1.2
0.9
0.6
0.3
0
0.9 GHz
1.9 GHz
2.4 GHz
3.5 GHz
-10
2 dB
4 dB
8 dB
-12
-14
-16
14 dB
0.5
1
1.5
2
2.5
3
3.5
2
4
6
8
10
12
FREQUENCY (GHz)
ATTENUATION STATE (dB)
Absolute Bit Error vs. Frequency
(Only Major States are Shown)
Relative Phase vs. Frequency
(Only Major States are Shown)
1.5
60
2 dB
1.2
4 dB
40
8 dB
16 dB
2 dB
4 dB
0.9
8 dB
14 dB
20
0
0.6
0.3
0
-20
0.5
1
1.5
2
2.5
3
3.5
0.5
1
1.5
2
2.5
3
3.5
FREQUENCY (GHz)
FREQUENCY (GHz)
Note: All Data Typical Over Voltage (+3V to +5V) & Temperature (-40 to +85 deg. C.).
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
5 - 35
HMC288MS8 / 288MS8E
v01.0705
2 dB LSB GaAs MMIC 3-BIT DIGITAL
ATTENUATOR, 0.7 - 3.7 GHz
5
Truth Table
Control & Bias Voltages
Control Voltage Input
State
Bias Condition
Attenuation
Setting
RF1 - RF2
V1
V2
V3
2 dB
Low
0 to +0.2V @ 20 uA Max.
Vdd 0.2V @ 50 uA Max
8 dB
4 dB
High
Reference
I.L.
Note: Vdd = +3V to 5V 0.2V
High
High
High
High
High
Low
High
Low
High
Low
High
High
2 dB
4 dB
8 dB
14 dB
Max. Atten.
Low
Low
Low
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Application Circuit
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 throught either PIN 5 or PIN 8.
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
5 - 36
HMC288MS8 / 288MS8E
v01.0705
2 dB LSB GaAs MMIC 3-BIT DIGITAL
ATTENUATOR, 0.7 - 3.7 GHz
5
Absolute Maximum Ratings
Control Voltage (V1, V2, V3)
Vdd + 0.5 Vdc
Bias Voltage (Vdd)
+8.0 Vdc
Storage Temperature
-65 to +150 °C
-40 to +85 °C
+28 dBm
Operating Temperature
RF Input Power (0.7 - 4 GHz)
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
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
Package Body Material
Lead Finish
MSL Rating
MSL1 [1]
Package Marking [3]
H288
XXXX
HMC288MS8
Low Stress Injection Molded Plastic
Sn/Pb Solder
H288
XXXX
MSL1 [2]
HMC288MS8E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
[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
5 - 37
HMC288MS8 / 288MS8E
v01.0705
2 dB LSB GaAs MMIC 3-BIT DIGITAL
ATTENUATOR, 0.7 - 3.7 GHz
5
Evaluation Circuit Board
* R2 = R3 = R4 = 100 Ohm.
These resistors are optional
and may be used to enhance
decoupling of the RF path
from the control inputs.
List of Materials for Evaluation PCB 103143 [1]
The circuit board used in the final application should
use RF circuit design techniques. Signal lines
should have 50 ohm impedance while the pack-
age ground leads should be connected directly to
the ground plane similar to that shown. A sufficient
number of via holes should be used to connect the
top and bottom ground planes. The evaluation cir-
cuit board as shown is available from Hittite Micro-
wave Corporation upon request.
Item
Description
J1 - J2
J3 - J6
R1
PCB Mount SMA Connector
DC Pin
5k Ohm Resistor, 0402 Chip
100 Ohm Resistor, 0402 Chip
R2, R3, R4
0402 Chip Capacitor, Select for Lowest Fre-
quency of Operation
C1, C2
U1
HMC288MS8 / HMC288MS8E
Digital Attenuator
[2]
PCB
103141 Evaluation PCB 1.5” x 1.5”
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
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
5 - 38
HMC288MS8 / 288MS8E
v01.0705
2 dB LSB GaAs MMIC 3-BIT DIGITAL
ATTENUATOR, 0.7 - 3.7 GHz
5
Notes:
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
5 - 39
相关型号：
©2020 ICPDF网 联系我们和版权申明