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PDF HMC960LP4E Data sheet ( Hoja de datos )
| Número de pieza | HMC960LP4E | |
| Descripción | DC-100 MHz DUAL Digital Variable Ga in Amplifier | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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HMC960LP4E
v01.1212
DC - 100 MHz DUAL Digital
Variable Gain AmplifieR with Driver
Typical Applications
The HMC960LP4E is suitable for:
• Baseband I/Q Transceivers
• Direct Conversion & Low IF Transceivers
• Diversity Receivers
• ADC Drivers
• Adaptive Gain Control
Features
Low Noise: 6 dB NF
High Linearity: Output IP3 +30 dBm
Variable Gain: 0 to 40 dB
High Bandwidth: DC to 100 MHz
Precise Gain Accuracy: 0.5 dB Gain Step
Excellent Magnitude and Phase Response
Externally Controlled Common Mode Output Level
Parallel or Serial Gain Control
Read/Write Serial Port Interface (SPI)
24 Lead 4x4 mm SMT Package 16 mm2
Programmable Input Impedance
(400 Ω Differential or 100 Ω Differential)
Functional Diagram
General Description
The HMC960LP4E is a digitally programmable dual
channel variable gain amplifier. It supports discrete
gain steps from 0 to 40 dB in precise 0.5 dB steps.
It features a glitch free architecture to provide
exceptionally smooth gain transitions. The device
has matched gain paths which provide excellent
quadrature balance over a wide signal bandwidth.
The HMC960LP4E provides an SPI programmable
input impedance of 100 Ω differential or 400 Ω
differential (default).
Externally controlled common mode output feature
enables the HMC960LP4E to provide a flexible output
interface to other parts in the signal path.
Gain can be controlled via either a parallel interface
(GC[6:0]) or via the read/write serial port (SPI).
Housed in a compact 4x4mm (LP4) SMT QFN
package, the HMC960LP4E requires minimal external
components and provides a low cost alternative to
more complicated switched amplifier architectures.
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1 page  
v01.1212
HMC960LP4E
DC - 100 MHz DUAL Digital
Variable Gain AmplifieR with Driver
Figure 1. Gain vs. Temperature (40 MHz)
40
35
30
25
20
15
10
5
0
0
27 C
85 C
-40 C
5 10 15 20 25 30 35 40
PROGRAMMED GAIN (dB)
Figure 2. Gain Error,
Absolute & Step (40 MHz)
0.1
0.05
0
-0.05
-0.1
0
ABSOLUTE GAIN
RELATIVE GAIN
5 10 15 20 25 30 35 40
PROGRAMMED GAIN (dB)
Figure 3. Gain vs. Temperature (100 MHz)
40
35
30
25
20
15
10 27 C
85 C
5 -40 C
0
0 5 10 15 20 25 30 35 40
PROGRAMMED GAIN (dB)
Figure 4. Gain Error,
Absolute & Step (100 MHz)
0.5
0.25
0
-0.25
-0.5
0
ABSOLUTE GAIN
RELATIVE GAIN
5 10 15 20 25 30 35 40
PROGRAMMED GAIN (dB)
Figure 5. Frequency Response vs. Gain [1]
50
40dB GAIN
40
30
20
10
0
0dB GAIN
-10
-20
-30
0.1
1 10 100
FREQUENCY (MHz)
1000
Figure 6. Channel Isolation vs. Gain [2]
-20
-30
0dB
10dB
20dB
-40
30dB
40dB
-50
-60
0 dB Gain
-70
-80
-90
-100
0.1
40 dB Gain
1 10 100
FREQUENCY (MHz)
1000
[1] 2 dB Gain step increments
[2] 10 dB Gain step increments
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4
5 Page 
v01.1212
HMC960LP4E
DC - 100 MHz DUAL Digital
Variable Gain AmplifieR with Driver
Table 4. Pin Descriptions (Continued)
Pin Number
Function
Description
Interface Schematic
19, 20
IIP, IIN
Inphase (I) channel positive and negative differential
inputs respectively
21
22
23, 24
VDDI
VDDQ
Inphase (I) Channel 5 V Supply. Must be locally decoupled
to GND
Quadrature (Q) Channel 5 V Supply. Must be locally
decoupled to GND
IQN, IQP
Quadrature (Q) channel negative and positive differential
inputs respectively
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10
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet HMC960LP4E.PDF ] | |
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