HMC305LP4 PDF даташит
Спецификация HMC305LP4 изготовлена «Hittite Microwave Corporation» и имеет функцию, называемую «0.5 dB LSB GaAs MMIC 5-BIT SERIAL CONTROL DIGITAL ATTENUATOR 0.7 - 3.8 GHz». |
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Детали детали
Номер произв | HMC305LP4 |
Описание | 0.5 dB LSB GaAs MMIC 5-BIT SERIAL CONTROL DIGITAL ATTENUATOR 0.7 - 3.8 GHz |
Производители | Hittite Microwave Corporation |
логотип |
8 Pages
No Preview Available ! |
HMC305LP4 / 305LP4E
www.DataSheet4U.com
v03.0809
0.5 dB LSB GaAs MMIC 5-BIT SERIAL
CONTROL DIGITAL ATTENUATOR, 0.7 - 3.8 GHz
5
Typical Applications
The HMC305LP4 / HMC305LP4E is ideal for:
• Cellular/3G Infrastructure
• Fixed Wireless, WiMax & WiBro
• Test Instrumentation
Features
0.5 dB LSB Steps to 15.5 dB
CMOS Compatible Serial Data Interface
SPI Compatible Serial Output
±0.3 dB Typical Bit Error
24 Lead 4x4mm QFN Package: 16mm2
Included in the HMC-DK004 Designer’s Kit
Functional Diagram
General Description
The HMC305LP4 & HMC305LP4E are broadband
5-bit positive control GaAs IC digital attenuators with
CMOS compatible serial-to-parallel drivers packaged
in leadless QFN 4x4 mm SMT packages. Covering
0.7 to 3.8 GHz, the insertion loss is typically less
than 1.5 to 2 dB. 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 excellent at ±0.25
dB typical with an IIP3 of up to +52 dBm. Five bit
serial control words are used to select each attenuation
state. A single Vcc bias of +3V to +5V applied through
an external 5k Ohm resistor is required.
5 - 60
Electrical Specifications, TA = +25° C, Vcc = +3V to +5V
Parameter
Frequency
Min.
Insertion Loss
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 3.8 GHz
Attenuation Range
0.7 - 3.8 GHz
Return Loss (RF1 & RF2, All Atten. States)
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 3.8 GHz
Typical
1.2
1.5
1.8
2.0
15.5
17
18
19
15
Max.
1.5
2.0
2.3
2.5
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
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 (Latch Enable to 10/90% RF)
Vcc = 5V
Vcc = 3V
Vcc = 5V
Vcc = 3V
0.7 - 0.9 GHz
0.9 - 2.2 GHz
2.2 - 3.8 GHz
0.7 - 3.8 GHz
0.7 - 3.8 GHz
0.7 - 3.8 GHz
± (0.5 +5% of Atten. Setting) Max
± (0.3 +4% of Atten. Setting) Max
± (0.5 +5% of Atten. Setting) Max
25
23
52
48
750
830
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
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
No Preview Available ! |
v03.0809
HMC305LP4 / 305LP4E
www.DataSheet4U.com
0.5 dB LSB GaAs MMIC 5-BIT SERIAL
CONTROL DIGITAL ATTENUATOR, 0.7 - 3.8 GHz
Insertion Loss
0
-0.5
-1
-1.5
-2
-2.5 +25C
+85C
-3 -40C
-3.5
-4
0.5 1 1.5 2 2.5 3 3.5 4
FREQUENCY (GHz)
Return Loss RF1, RF2
(Only Major States are Shown)
0
-5
-10
0.5 dB
-15
2 dB 8 dB
I.L. 15.5 dB
-20
-25
-30
0.5
1 dB
4 dB
1 1.5 2 2.5 3 3.5
FREQUENCY (GHz)
4
5
Normalized Attenuation
(Only Major States are Shown)
0
-2
-4
-6
-8
-10
-12
-14
-16
0.5 1 1.5 2 2.5 3 3.5 4
FREQUENCY (GHz)
Bit Error
vs. Attenuation State
1
0.75
3.5 GHz
1.9 GHz 0.9 GHz
0.5
0.25
0
-0.25
2.4 GHz
-0.5
0 2 4 6 8 10 12 14 1
Bit Error vs. Frequency
(Only Major States are Shown)
3
2
0.5, 1, 2, 4 dB
8 dB
1
15.5 dB
0
-1
0.5 1 1.5 2 2.5 3 3.5 4
FREQUENCY (GHz)
Relative Phase vs. Frequency
(Only Major States are Shown)
60
40
15.5 dB
20
0
-20
-40 0.5, 1, 2, 4, 8 dB
-60
0 0.5 1 1.5 2 2.5 3 3.5 4
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 - 61
No Preview Available ! |
v03.0809
HMC305LP4 / 305LP4E
www.DataSheet4U.com
0.5 dB LSB GaAs MMIC 5-BIT SERIAL
CONTROL DIGITAL ATTENUATOR, 0.7 - 3.8 GHz
5 Worst Case Step Error
Between Successive Attenuation States
1.2
0.8
0.4
0
-0.4
-0.8
-1.2
0.5 1 1.5 2 2.5 3 3.5 4
FREQUENCY (GHz)
Digital Control Voltages
State
Low
High
Vcc = +5V
0 to 1.3V
3.5 to 5V
Vcc = +3V
0 to 0.7V
2.3 to 3V
Serial Input Truth Table
Latch
Enable
X
X
Shift
Clock
X
X
Reset
L
H
H
Function
Shift register cleared
Shift register clocked
Contents of shift register
transferred to Digital
Attenuator
Timing
Parameter
Symbol
Serial Input Setup
Time
Hold time from Serial
Input to Shift Clock
Setup time from
Shift Clock to Latch
Enable
Propagation delay,
Latch Enable to C0.5
through C8
Setup time from
Reset to Shift Clock
Clock Frequency
(1/tclk)
ts
th
tlsup
tpd
-
fclk
Vcc = +5V
Min. Max.
20 -
0-
40 -
- 30
20 -
- 30
Vcc = +3V Units
Min. Max.
100 -
ns
5 - ns
100 -
ns
- 70 ns
50 - ns
- 10 MHz
Truth Table
C 0.5
Serial Control Input
C1 C2 C4
C8
Attenuation
Setting
RF1 - RF2
High High High High High
Reference
I.L.
Low High High High High
0.5 dB
High Low High High High
1 dB
High High Low High High
2 dB
High High High Low High
4 dB
High High High High Low
8 dB
Low Low Low Low Low
15.5 dB
Max. Atten.
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Timing Diagram
5 - 62
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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Номер в каталоге | Описание | Производители |
HMC305LP4 | 0.5 dB LSB GaAs MMIC 5-BIT SERIAL CONTROL DIGITAL ATTENUATOR 0.7 - 3.8 GHz | Hittite Microwave Corporation |
HMC305LP4E | 0.5 dB LSB GaAs MMIC 5-BIT SERIAL CONTROL DIGITAL ATTENUATOR 0.7 - 3.8 GHz | Hittite Microwave Corporation |
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