MA-COM MAIA-007100

MADR-007131-000100
Dual Linear Driver for Vector Modulators
Rev. V2
Features
• Linearizes M/A-COM’s PIN Diode Vector
Modulators Over a 360° Phase Range
• Dual Channels Allow One Driver per Vector
Modulator
• Guaranteed Minimum Output Currents of 20 mA
• Operates with a Single Supply Voltage of +5V
• Low Quiescent Currents
• Single Control Voltage for Each Channel
• 6 x 4 mm Chip Scale Package
• Test Boards with Vector Modulators are Available
• Tape and Reel Packaging Available
• Lead-Free PQFN Package
• 100% Matte Tin Plating over Copper
• Halogen-Free “Green” Mold Compound
• 260°C Reflow Compatible
• RoHS* Compliant Version of MADRCC0002
Description
M/A-COM's MADR-007131-000100 is a dual, break
point free driver that produces a logarithmic output
current suitable for linearizing PIN diode based
vector modulators. This driver, in conjunction with
the external components, as defined in Figure 1,
produces a linearized transfer function between the
input control voltage of the driver and the
attenuation / phase output of the vector modulator.
The MADR-007131-000100 has been optimized for
linearizing M/A-COM’s Vector Modulators (see Table
1), but will function well with most types of cathode
grounded vector modulators. The driver is packaged
in a 6 x 4 mm Chip Scale Package for commercial
SMT applications. A typical schematic for a dual
linearizer driving a vector modulator is shown in
Figure 1.
Circuit Description:
(Reference Figures 1, 2 and 3)
Note that this is a dual driver. Only the top circuit
will be described, because the bottom circuit is
identical. The input divider, R1 and the sum of R2
and R3, sets the overall transfer function of the circuit. To increase the transfer function, decrease the
Control Voltage and the value of R1. Temperature
compensation is a function of the temperature
coefficient of the thermistor, R3, and the ratio of R2
to R3, and can only be optimized once the transfer
function and linearity component values have been
established. Varying the value of R4 will optimize
the linearity of the VVA. One can achieve a more
linear transfer function by driving the attenuator
over a smaller portion of its dynamic range. Note
that when the vector modulators called out in Table
1 are driven with the dual linearizer, both amplitude
and phase are affected, which makes it hard to define linearity. The individual transfer function of
each voltage variable attenuator in the vector
modulator (See Figure 2 for the block diagram) is
linearized as a function of voltage. The two VVAs in
the block diagram are the quad hybrids that are
terminated by two PIN diodes. See Figure 3 for
the transfer function of the MAIA-007150-000100
vector modulator (phase and attenuation vs. control
voltages).
Ordering Information
Part Number
Package
MADR-007131-000100
Bulk Packaging
MADR-007131-0001TR
Tape & Reel (1K Reel)
MAIA-007099-0001TB
Test Board with Circuit per
Figure 1
(MAIA-007099-000100,
GSM Vector Modulator)
MAIA-007100-0001TB
Test Board with Circuit per
Figure 1
(MAIA-007100-000100,
PCS Vector Modulator)
MAIA-007150-0001TB
Test Board with Circuit per
Figure 1
(MAIA-007150-000100,
UMTS Vector Modulator
Note: Reference Application Note M513 for reel size
information.
* Restrictions on Hazardous Substances, European Union
Directive 2002/95/EC.
1
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MADR-007131-000100
Dual Linear Driver for Vector Modulators
Rev. V2
Electrical Specifications: TA = 25°C, Z0 = 50Ω, Reference Figure 1 (Each Circuit)
Parameter
Test Conditions
Units
Min
Typ
Max
Output Drive Current
Vcontrol = VCC
mA
20
—
—
+VCC Supply Range
—
V
4.5
5.0
5.5
IN, REF Voltage
—
V
0
—
VCC
+VCC Quiescent Current
No Load
µA
—
50
70
Settling Time
50% Ctl to 90%/10% RF
µS
—
25
—
Figure 1
2
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MADR-007131-000100
Dual Linear Driver for Vector Modulators
Rev. V2
Table 1. Inductor Selection for M/A-COM Vector Modulators
Vector
Modulator
Frequency
Range (MHz)
Coil Craft
P/N L1 - L4
Description of
L1 - L4
Resistor
Values
R2, R6
Thermistor
Quality
Values
Thermistor
R3, R7
P/N for R3, R7
MAIA-007099-000100
925-960 (GSM)
0603CS-68NXJBC
Inductor, 68 nH, ± 5%
270 Ohms
750 Ohms
QT0805-751K
MAIA-007100-000100
1930-1990 (PCS)
0603CS-27NXJBC
Inductor, 27 nH, ± 5%
360 Ohms
680 Ohms
QT0805-681K
MAIA-007150-000100
2040-2240 (UMTS)
0603CS-27NXJBC
Inductor, 27 nH, ± 5%
270 Ohms
750 Ohms
QT0805-751K
Recommended PCB Configuration
3
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MADR-007131-000100
Dual Linear Driver for Vector Modulators
Rev. V2
Pin Configuration
Pin No.
Function
Pin No.
Function
1
NC
17
REF A
2
IN B
18
NC
3
NC
19
REF A
4
REF B
20
NC
5
NC
21
IN A
6
REF B
22
NC
7
NC
23
NC
8
REF B
24
NC
9
OUT B
25
NC
Parameter
Absolute Maximum
10
NC
26
NC
+VCC
+20 V
11
Vcc
27
NC
IN A, IN B
-0.5V < Input < Vcc +0.5V
12
NC
28
GND
REF A, REF B
-0.5V < Input < Vcc +0.5V
13
NC
29
NC
Output Short Circuit Duration3
Continuous
14
OUT A
30
NC
Operating Temperature
-40°C to +85°C
15
REF A
31
NC
Storage Temperature
-65°C to +125°C
16
NC
32
NC
Package Power Dissipation
Control Voltage
150 mW
Lead Temperature
300ºC for 10 seconds
The exposed pad centered on the package bottom must be
connected to RF and DC ground. (For PQFN Packages)
Handling Procedures
Absolute Maximum Ratings 1,2
1. Exceeding any one or combination of these limits may
cause permanent damage to this device.
2. M/A-COM does not recommend sustained operation near
these survivability limits.
3. Additional heat sinking may be required for a continuous
output short circuit to ground, to keep the junction
temperature of the amplifier below 150°C.
Please observe the following precautions to avoid
damage:
Static Sensitivity
Silicon Integrated Circuits are sensitive to
electrostatic discharge (ESD) and can be damaged
by static electricity. Proper ESD control techniques
should be used when handling these devices.
4
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MADR-007131-000100
Dual Linear Driver for Vector Modulators
Rev. V2
Lead-Free 4x6 mm, 32-lead PQFN†
†
Reference Application Note M538 for lead-free solder reflow
recommendations.
5
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MADR-007131-000100
Dual Linear Driver for Vector Modulators
Rev. V2
Figure 3A - Phase and Attenuation of MAIA-007150-000100,
Vector Modulator Linearized with MADR-007131-000100 Linearizer 3,4,5,6
(y)
90°
45°
bias 1 = 0.0V
0.5V
bias 2 = 5.0V
3.5V
3.0V
1.0V
(x)
0°
2.5V
2.0V
1.5V
1.5V
1.0V
2.0V
2.5V
3.0V
3.5V
bias 1 = 5.0V
0.5V
bias 2 = 0.0V
Figure 3B
bias 1 = 0V
bias 2 = +5V
bias 1 = 0V
bias 2 = 0V
(y)
90°
45°
(x)
0°
Loss = 22 dB
Loss = 17 dB
bias 1 = +5V
bias 2 = +5V
Loss = 12 dB
bias 1 = +5V
bias 2 = 0V
3.
4.
5.
6.
Reflection
coefficient = 0.5
Tic marks on x,y axes refer to reflection coefficient in increments of 0.1V. Reflection coefficients vary from -0.5 to +0.5 on both the x and y axes.
Data is for vector modulators driven by linearizers per attached schematic.
Inputs to the linearizers vary from 0 to 5V.
The phase with the inputs to both linearizers set to +5V is arbitrarily called zero degrees.
6
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MADR-007131-000100
Dual Linear Driver for Vector Modulators
Rev. V2
Figure 2—Block Diagram
Vector Modulator
7
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.