HITTITE HMC743LP6C

HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
Typical Applications
Features
The HMC743LP6C(E) is ideal for:
-45 to +18 dB Gain Control in 0.5 dB Steps
• Cellular/3G Infrastructure
Power-up State Selection
• WiBro, WiMAX & LTE/4G
High Output IP3: +33 dBm
• Microwave Radio & VSAT
TTL/CMOS Compatible Serial Control
• Test Equipment and Sensors
±0.25 dB Typical Gain Step Error
Single +5V Supply
• IF & RF Applications
40 Lead 6x6 mm SMT Package: 36 mm2
Functional Diagram
General Description
The HMC743LP6C(E) is a digitally controlled variable
gain amplifier which operates from DC to 4 GHz,
can be programmed to provide 63 dB of gain control
in 0.5 dB steps and delivers output IP3 of up to
+33 dBm. The gain control interface accepts a three
wire serial input word and allows independent or
simultaneous control of two 6-bit digital attenuators.
The HMC743LP6C(E) also features a user selectable
power up state and a serial output for cascading
other serially controlled Hittite products. The
HMC743LP6C(E) is housed in an RoHS compliant
6x6 mm QFN leadless package, and requires minimal
external components.
Variable gain amplifiers - digital - SMT
12
12 - 1
Electrical Specifications, TA = +25° C, 50 Ohm System Vdd = +5V, Vcc = +5V
Parameter
Min.
Frequency Range
Typ.
Max.
Min.
70 - 1000
Gain (Maximum Gain State)
18.5
6
Max.
Units
MHz
13
dB
Gain Control Range
63
63
dB
Input Return Loss
18
19
Output Return Loss
15
17
dB
70 - 350 MHz: ± (0.3 + 3.5%)
350 - 750 MHz: ± (0.3 + 6.0%)
750 - 1000 MHz: ± (0.3 + 4.0%)
0.7 - 1.7 GHz: ± (0.3 + 4.5%)
1.7 - 3.2 GHz: ± (0.3 + 4.0%)
3.2 - 4.0 GHz: ± (0.3 + 5.0%)
dB
dB
dB
Output Power for 1 dB Compression
18
17
dBm
Output Third Order Intercept Point
(Two-Tone Output Power= 8 dBm Each Tone)
33
28
dBm
Noise Figure
6
7
dB
100
160
100
160
ns
ns
Gain Accuracy: (Referenced to Maximum Gain State)
All Gain States
15.5
Typ.
700 - 4000
Switching Characteristics
tRISE, tFall (10 / 90% RF)
tON, tOFF (Latch Enable to 10 / 90% RF)
Supply Current (Idd)
2
Supply Current (Icc)
82
2
102
82
mA
102
mA
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
70 to 1000 MHz Tuning
Relative Gain Setting
Maximum Gain vs. Temperature
(Referenced to Maximum Gain State)
0
20
-10
RELATIVE GAIN (dB)
22
16
+25 C
+85 C
-40 C
14
12
31.5dB
-40
-50
63dB
-60
10
-70
0
0.2
0.4
0.6
0.8
1
0
0.2
0.4
FREQUENCY (GHz)
-10
-10
RETURN LOSS (dB)
0
Max Gain State
-20
63dB
-30
1
0.8
1
Max Gain State
-20
16dB
-30
16dB
-40
0.4
0.6
0.8
1
31.5dB
63dB
-40
0.2
0.8
Output Return Loss
0
0
0.6
FREQUENCY (GHz)
Input Return Loss
RETURN LOSS (dB)
16dB
-30
0
0.2
0.4
FREQUENCY (GHz)
0.6
FREQUENCY (GHz)
Bit Error vs. Relative Gain State
Bit Error vs. Frequency
(Major Frequencies)
4
3
63dB
0.5, 0.7GHz
3
BIT ERROR (dB)
BIT ERROR (dB)
2
2
31.5dB
16dB
1
0
1
0.9GHz
0
-1
-2
0.1, 0.3GHz
0
0.2
0.4
0.6
FREQUENCY (GHz)
0.8
1
-1
0
8
16
24
32
40
48
56
64
RELATIVE GAIN SETTING (dB)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
12
variable gain amplifiers - digital - SMT
GAIN (dB)
18
8dB
-20
12 - 2
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
70 to 1000 MHz Tuning
Relative Phase vs. Frequency
Step Error vs. Frequency (Worst Case)
20
1
31.5dB
10
56, 58, 60, 62db
16dB
STEP ERROR (dB)
RELATIVE PHASE (DEG)
63dB
0
-10
0dB
0.5
0
-0.5
47, 47.5dB
-20
12 - 3
0.2
0.4
0.6
0.8
-1
1
0
0.2
FREQUENCY (GHz)
-20
0.6
0.8
1
Output P1dB vs. Temperature [1]
20
0, 0.5, 1, 2, 4dB
-30
19
-40
16dB
-50
8dB
P1dB (dBm)
REVERSE ISOLATION (dB)
0.4
FREQUENCY (GHz)
Reverse Isolation (Major States)
16dB
-60
31.5dB
-70
18
17
+25 C
+85 C
-40 C
16
63dB
-80
15
-90
-100
14
0
0.2
0.4
0.6
0.8
0
1
0.2
FREQUENCY (GHz)
0.4
0.6
0.8
1
0.8
1
FREQUENCY (GHz)
Psat vs. Temperature [1]
Output IP3 vs. Temperature [1]
22
40
21
36
20
IP3 (dBm)
Psat (dBm)
Variable gain amplifiers - digital - SMT
12
0
19
+25 C
+85 C
-40 C
18
32
+25 C
+85 C
-40 C
28
17
16
24
0
0.2
0.4
0.6
FREQUENCY (GHz)
0.8
1
0
0.2
0.4
0.6
FREQUENCY (GHz)
[1] Max Gain State
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
70 to 1000 MHz Tuning
Input Attenuator Relative Attenuation
Noise Figure vs. Frequency [1]
(Major States)
14
0
-5
+25 C
+85 C
-40 C
10
RELATIVE GAIN (dB)
8
6
4
2
0.5, 1, 2dB
4dB
-10
8dB
-15
-20
16dB
-25
31.5dB
-30
0
-35
0
0.2
0.4
0.6
0.8
1
0
0.2
0.4
FREQUENCY (GHz)
0.6
Input Attenuator Bit Error vs.
Attenuation State (Major Frequencies)
2
3
31.5dB
0.5, 0.7dB
16dB
2
BIT ERROR (dB)
1
BIT ERROR (dB)
1
FREQUENCY (GHz)
Input Attenuator Bit Error vs.
Frequency (Major States)
0
1
-1
0
-2
-1
0.1dB
0
0.2
0.4
0.6
0.8
1
0
8
16
FREQUENCY (GHz)
24
0.3, 0.9dB
32
40
48
56
64
RELATIVE GAIN STATE (dB)
Input Attenuator Relative Phase vs.
Frequency (Major States)
Output Attenuator Relative Attenuation
(Major States)
20
0
-5
8, 16dB
31.5dB
10
RELATIVE GAIN (dB)
RELATIVE PHASE (DEG)
0.8
0
0.5, 1, 2, 4dB
-10
4dB
-10
0.5, 1, 2dB
8dB
-15
-20
31.5dB
-25
16dB
-30
-20
0
0.2
0.4
0.6
FREQUENCY (GHz)
0.8
1
-35
0
0.2
0.4
0.6
0.8
1
FREQUENCY (GHz)
[1] Max Gain State
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
12
variable gain amplifiers - digital - SMT
NOISE FIGURE (dB)
12
12 - 4
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
70 to 1000 MHz Tuning
Output Attenuator Bit Error vs.
Attenuation State (Major Frequencies)
Output Attenuator Bit Error vs.
Frequency (Major States)
2
16dB
0.5, 0.7GHz
2
8dB
BIT ERROR (dB)
1
BIT ERROR (dB)
3
31.5dB
0
1
-1
-2
12 - 5
0
0.2
0.4
0.6
0.8
-1
1
0
8
FREQUENCY (GHz)
16
24
0.1GHz
0.3, 0.9GHz
32
48
40
56
64
RELATIVE GAIN STATE (dB)
Output Attenuator Relative Phase vs.
Frequency (Major States)
20
RELATIVE PHASE (DEG)
Variable gain amplifiers - digital - SMT
12
0
10
8, 16dB
31.5dB
0
0.5, 1, 2, 4dB
-10
-20
0
0.2
0.4
0.6
0.8
1
FREQUENCY (GHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
0.7 to 4.0 GHz Tuning
Relative Gain Setting
Maximum Gain vs. Temperature
(Referenced to Maximum Gain State)
20
0
-10
RELATIVE GAIN (dB)
GAIN (dB)
16
12
+25 C
+85 C
-40 C
8
8dB
-20
31.5dB
16dB
-30
-40
-50
63dB
-60
-70
1
1.5
2
2.5
3
3.5
4
0.5
1
1.5
FREQUENCY (GHz)
2
2.5
3
3.5
4
FREQUENCY (GHz)
Input Return Loss
Output Return Loss
0
0
RETURN LOSS (dB)
RETURN LOSS (dB)
0.5dB
-10
-20
63dB
-30
-10
0dB
-20
63dB
-30
16dB
31.5dB
-40
0.5
1
1.5
31.5dB
2
2.5
3
3.5
-40
0.5
4
1
1.5
FREQUENCY (GHz)
2
2.5
3
3.5
4
FREQUENCY (GHz)
Bit Error vs. Relative Gain State
Bit Error vs. Frequency
(Major Frequencies)
4
3
1.0, 4.0GHz
63dB
2
2
BIT ERROR (dB)
BIT ERROR (dB)
3
16dB
31.5dB
1
0
1
0
-1
-2
2.0, 3.0GHz
0.5
1
1.5
2
2.5
FREQUENCY (GHz)
3
3.5
4
-1
0
8
16
24
32
40
48
56
64
RELATIVE GAIN STATE(dB)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
12
variable gain amplifiers - digital - SMT
4
0.5
12 - 6
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
0.7 to 4.0 GHz Tuning
Relative Phase vs. Frequency
Step Error vs. Frequency (Worst Case)
60
1
31.5dB
40
30
STEP ERROR (dB)
RELATIVE PHASE (DEG)
50
63dB
31.5dB
20
16dB
8dB
10
0.5
31dB
31dB
62.5dB
0
-0.5
0
-10
12 - 7
1
1.5
2
2.5
3
3.5
4
0.5
1
1.5
8dB
4
3.5
4
3.5
4
19
4dB
P1dB(dBm)
REVERSE ISOLATION (dB)
3.5
24
16dB
-60
31.5dB
14
+25 C
+85 C
-40 C
9
-80
-90
0.5
3
0.5, 1, 2dB
-50
-70
2.5
Output P1dB vs. Temperature [1]
-20
-40
2
FREQUENCY (GHz)
Reverse Isolation
-30
15dB
47dB
FREQUENCY (GHz)
63dB
1
1.5
2
2.5
3
3.5
4
0.5
4
1
1.5
FREQUENCY (GHz)
2
2.5
3
FREQUENCY (GHz)
Psat vs. Temperature [1]
Output IP3 vs. Temperature [1]
24
40
35
19
30
IP3 (dBm)
Psat (dBm)
Variable gain amplifiers - digital - SMT
12
0.5
-1
14
+25 C
+85 C
-40 C
20
+25 C
+85 C
-40 C
9
25
15
4
0.5
1
1.5
2
2.5
FREQUENCY (GHz)
3
3.5
4
10
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
[1] Max Gain State
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
0.7 to 4.0 GHz Tuning
Input Attenuator Relative Attenuation
Noise Figure vs. Frequency [1]
(Major States)
16
0
RELATIVE GAIN (dB)
NOISE FIGURE(dB)
-5
+25 C
+85 C
-40 C
12
8
4
4dB
-10
0.5, 1, 2dB
8dB
-15
-20
16dB
-25
31.5dB
-30
-35
1
1.5
2
2.5
3
3.5
4
0.5
1
1.5
FREQUENCY (GHz)
31.5dB
4
1.0, 4.0GHz
2
BIT ERROR (dB)
1
BIT ERROR (dB)
3.5
3
8, 16dB
0
0.5, 1, 2, 4dB
-1
0.5
1
1.5
2
1
0
2.5
3
3.5
-1
4
2.0, 3.0GHz
0
8
16
FREQUENCY (GHz)
24
32
40
48
56
64
RELATIVE GAIN STATE (dB)
Input Attenuator Relative Phase vs.
Frequency (Major States)
Output Attenuator Relative Attenuation
(Major Steps)
30
0
20
31.5dB
-5
16dB
RELATIVE GAIN (dB)
RELATIVE PHASE (DEG)
3
Input Attenuator Bit Error vs.
Attenuation State (Major Frequencies)
2
8dB
10
0
-10
-20
-30
2.5
FREQUENCY (GHz)
Input Attenuator Bit Error vs.
Frequency (Major States)
-2
2
4dB
-10
0.5, 1, 2dB
8dB
-15
-20
16dB
-25
31.5dB
-30
0.5
1
1.5
2
2.5
FREQUENCY (GHz)
3
3.5
4
-35
0.5
1
1.5
2
2.5
3
3.5
FREQUENCY (GHz)
[1] Max Gain State
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
4
12
variable gain amplifiers - digital - SMT
0
0.5
12 - 8
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
0.7 to 4.0 GHz Tuning
Output Attenuator Bit Error vs. Frequency
Output Attenuator Bit Error vs.
(Major States)
Attenuation State (Major Frequencies)
2
3
0
0.5, 1, 2, 4, 8, 16dB
-1
1.0, 4.0GHz
2
31.5dB
BIT ERROR (dB)
BIT ERROR (dB)
1
1
0
2.0, 3.0GHz
-2
12 - 9
1
1.5
2
2.5
3
3.5
4
0
8
16
FREQUENCY (GHz)
24
32
40
48
56
64
RELATIVE GAIN STATE (dB)
Output Attenuator Relative Phase vs.
Frequency (Major States)
40
31.5dB
RELATIVE PHASE (DEG)
Variable gain amplifiers - digital - SMT
12
0.5
-1
16dB
20
8dB
0
0.5, 1, 2, 4dB
-20
-40
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
Serial Control Interface
The HMC743LP6C(E) contains a 3-wire SPI compatible digital interface (SERIN, CLK, LEA (or LEB)) that is used to
control the input and output gain control elements (digital attenuators). The input (IN) and output (OUT) attenuators
can be individually controlled thru the latch enable pins. The LEA pin latches the serial 6-bit control word to the output
attenuator. The LEB pin latches the serial 6-bit control word to the input attenuator.
The 6-bit serial word can be loaded either MSB first or LSB first depending on the state of the BO (bit order) pin.
Setting BO to high configures the serial controller to operate in LSB first mode. Setting BO to low configures the serial
controller to operate in MSB first mode.
Timing Diagram
PUP Truth Table
Timing diagram is used for either input or output digital
gain control. Control word is shown with MSB first (BO
= Low) configuration.
LE
(A and B)
PUP1
PUP2
Gain Relative to Max Setting
0
0
0
-63 dB
0
1
1
0 dB
Parameter
Typ.
Min. serial period, tSCK
100 ns
Control set-up time, tCS
20 ns
Control hold-time, tCH
20 ns
LE setup-time, tLN
10 ns
Min. LE pulse width, tLEW
10 ns
Power-On Sequence
Min LE pulse spacing, tLES
630 ns
Serial clock hold-time from LE, tCKN
10 ns
The ideal power-up sequence is: GND, Vdd, digital
inputs, RF inputs. The relative order of the digital
inputs are not important as long as they are powered
after Vdd / GND
Power-Up States
The HMC743LP6C offers two different power up
states, either full attenuation or maximum gain mode.
See truth table.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
12
variable gain amplifiers - digital - SMT
When LEA or LEB (or both) is raised to a logic high, 6-bit data in the serial input register is transferred to the input
attenuator or the output attenuator (or both). While either LEA or LEB are high, CLK signal must be masked or stopped
to prevent data transition during output loading.
12 - 10
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
Absolute Maximum Ratings
Truth Table (for each attenuator)
Control Voltage Input
Attenuation
D5
D4
D3
D2
D1
D0
High
High
High
High
High
High
0 dB
Variable gain amplifiers - digital - SMT
11.5 dBm (T = +85 °C)
Digital Inputs (CLK, LEA, LEB,
SERIN, PUP1, PUP2 & B0)
-0.5V to Vdd +0.5V
High
High
High
High
High
Low
-0.5 dB
Bias Voltage (Vdd)
5.6V
High
High
High
High
Low
High
-1 dB
Collector Bias Voltage (Vcc)
5.5V
High
High
High
Low
High
High
-2 dB
Channel Temperature
150 °C
High
High
Low
High
High
High
-4 dB
Continuous Pdiss (T = 85 °C)
(derate 14.5 mW/°C above 85 °C) [1]
1.09 W
High
Low
High
High
High
High
-8 dB
Low
High
High
High
High
High
-16 dB
Low
Low
Low
Low
Low
Low
-31.5 dB
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
12
RF Input Power [1]
Vcc
69 °C/W
-65 to +150 °C
Operating Temperature
-40 to +85 °C
[1] At max gain settling
Bias Voltage
Vdd
Thermal Resistance
Storage Temperature
Control Voltage Table
Voltage (V)
Current (Typ.) (mA)
State
Vdd = +3V , Vcc = + 5V
Vdd = Vcc = +5V
+ 3.0
1
Low
0 to 0.5V @ <1 µA
0 to 0.8V @ <1 µA
+ 5.0
2
High
2 to 3V @ <1 µA
2 to 5V @ <1 µA
+ 5.0
82
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED LAND PATTERN.
12 - 11
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
Package Information
Part Number
Package Body Material
Lead Finish
MSL Rating
HMC743LP6C
Low Stress Injection Molded Plastic
Sn/Pb Solder
MSL1
[1]
HMC743LP6CE
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL1
[2]
Package Marking [3]
H743
XXXX
H743
XXXX
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
Pin Descriptions
Function
Description
1
RF1
This pin is DC coupled.
An off chip DC blocking capacitor is required.
38
RF6
RF output and DC bias for
the output stage of the amplifier.
2, 8, 15, 18 - 20,
28, 35, 39
N/C
No Connection
3, 23
SEROUT, SERIN
Data in and out pins
4, 5
PUP1, PUP2
Controls power up state
21, 22
LEB, LEA
LEA is the latch enable for the output attenuator.
LEB is the latch enable for the input attenuator.
24
CLK
Clock input
25
BO
Controls bit order of control word.
B0 - High = LSB first
B0 - Low = MSB first
6
Vdd
Supply Voltage
7, 16,
27, 36
RF2, RF3,
RF4, RF5
These pins are DC coupled and matched to 50 Ohms.
Blocking capacitors are required. Select value based
on lowest frequency of operation.
9 - 14
ACG1 - ACG6
External capacitors to ground are required. Place capacitor
as close to pins as possible. See “Components for Selected
Frequencies” table.
17, 26, 37, 40
Paddle
GND
These pins and the exposed ground paddle must be connected
to RF/DC ground.
29 - 34
ACG7 - ACG12
External capacitors to ground are required. Place capacitor
as close to pins as possible. See “Components for Selected
Frequencies” table.
Interface Schematic
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
12
variable gain amplifiers - digital - SMT
Pin Number
12 - 12
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
Application Circuit
Variable gain amplifiers - digital - SMT
12
12 - 13
Components for Selected Frequencies *
Tuned Frequency
70 - 1000 MHz
700 - 4000 MHz
Evaluation PCB
124459 [1]
124460 [1]
C3 (pF)
1000
100
C1, C2, C4, C14 (pF)
3300
100
100
330
C15 (pF)
2200
1000
L1 (nH)
560
36
C8, C10 (pF)
[1] Reference this number when ordering complete evaluation PCB.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC743LP6C / 743LP6CE
v04.0311
0.5 dB LSB GaAs MMIC DUAL 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 4 GHz
Evaluation PCB
List of Materials for Evaluation [1]
Item
Description
J1, J2
PCB Mount SMA Connector
J3
18 pos Header, 2mm
J4, J5
DC Pin
C1 - C4
Capacitor, 0402 Pkg. [1]
C5 - C7
330 pF Capacitor, 0402 Pkg.
C8, C10
Capacitor, 0402 Pkg. [1]
C9
100 pF Capacitor, 0402 Pkg.
C15
Capacitor, 0603 Pkg. [1]
L1
Inductor, 0603 Pkg.
R1
1.8 Ohm Resistor, 1206 Pkg.
U1
HMC743LP6(E) Variable Gain Amplifier
PCB [2]
118866 Evaluation PCB
The circuit board used in the application should use
RF circuit design techniques. Signal lines should
have 50 Ohm impedance while the package ground
leads and exposed paddle 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 circuit board shown is available from Hittite upon request.
[1] Please reference Components for Selected Frequencies Table
[2] Circuit Board Material: Arlon 25FR or Rogers 4350
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
variable gain amplifiers - digital - SMT
12
12 - 14