HITTITE HMC993LP5E_12

HMC993LP5E
v00.0911
AUTOMATIC GAIN CONTROL - SMT
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
Typical Applications
Features
The HMC993LP5E is ideal for:
Wide Gain Control Range: -11 to +32 dB
• Cellular/3G Infrastructure
High Output IP3: +46 dBm
• WiBro / WiMAX / 4G
Positive Analog Control: 0V to +5V
• Microwave Radio & VSAT
Configurable with 1 or 2 Attenuators
32 Lead 5x5 mm SMT Package: 25 mm2
• Test Equipment and Sensors
• IF & RF Applications
General Description
Functional Diagram
The HMC993LP5E is an RF analog controlled variable
gain amplifier composed of two identical voltage
variable attenuators in combination with an InGaP
HBT gain block MMIC amplifier which operates from
0.7 to 3.0 GHz, and can be controlled to provide
anywhere from -11 dB attenuation, to 32 dB of gain.
The HMC993LP5E delivers noise figure of 8 dB in
its maximum gain state, with output IP3 of up to
+46 dBm. The HMC993LP5E is housed in a RoHS
compliant 5x5 mm QFN leadless package.
Electrical Specifications,
TA = +25° C, 50 Ohm System, VDD = DETVDD = +5V [1]
AUTOMATIC
GAIN
Parameter
Frequency
Min.
Typ.
SMT
Max.
Units
1 Attenuator Operation
0.9 GHz
1.9 GHz
2.4 GHz
2.8 GHz
36
26
23
20
dB
dB
dB
dB
2 Attenuator Operation
0.9 GHz
1.9 GHz
2.4 GHz
32
21
17
dB
dB
dB
1 Attenuator Operation
0.9 GHz
1.9 GHz
2.4 GHz
2.8 GHz
21
22
23
24
dB
2 Attenuator Operation
0.9 GHz
1.9 GHz
2.4 GHz
43
33
28
dB
Gain (min. Attenuation)
Gain Control Range
1
CONTROL
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
Electrical Specifications (continued),
TA = +25° C, 50 Ohm System, VDD = DETVDD = +5V [1]
Frequency
Min.
Typ.
Max.
Units
1 Attenuator Operation
0.9 GHz
1.9 GHz
2.4 GHz
2.8 GHz
15
13
13
13
dB
2 Attenuator Operation
0.9 GHz
1.9 GHz
2.4 GHz
15
15
13
dB
1 Attenuator Operation
0.9 GHz
1.9 GHz
2.4 GHz
2.8 GHz
17
23
17
18
dB
2 Attenuator Operation
0.9 GHz
1.9 GHz
2.4 GHz
16
28
18
dB
Output Third Order Intercept Point
(Two-Tone Output Power= 0 dBm Each Tone) (min. Attenuation)
0.9 GHz
1.9 GHz
2.4 GHz
2.8 GHz
46
45
45
40
dBm
dBm
Output Power for 1dB Compression (min. Attenuation)
0.9 GHz
1.9 GHz
2.4 GHz
2.8 GHz
25
25
24.8
24
dBm
dBm
Noise Figure (min. Attenuation)
0.9 GHz
1.9 GHz
2.4 GHz
2.8 GHz
7.6
9.5
10.7
11.8
dB
260
mA
Input Return Loss
(min. Attenuation)
Output Return Loss
(min. Attenuation)
Supply Current (Idd)
Power Detector
Input Frequency
±3 dB Dynamic Range
Typ.
Typ.
Typ.
Typ
Units
900
1900
2400
2800
MHz
61
61
61
62
dB
DETOUT Slope
15.5
15.4
15.4
15.5
mV/dB
DETOUT Intercept
-68.2
-69.9
-70
-71.3
dBm
-1.3
-1.2
-1.2
-1.2
dB
Veriation of DETOUT with
Temperature from -40°C to +85°C @20dBm Input
AUTOMATIC GAIN CONTROL - SMT
Parameter
[1] Unless otherwise noted, test conditions: ATTN1 + ATTN2 + AMP1 + AMP2 in cascade.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
2
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
900MHz TUNE
Gain vs. VCTRL [1]
Gain vs. VCTRL [2]
40
35
30
20
25
GAIN (dB)
GAIN (dB)
30
20
15
10
0
10
-40C
+25C
+85C
5
-40C
+25C
+85C
-10
0
-20
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0
5
0.5
1
1.5
2
VCTRL (V)
3
3.5
4
4.5
5
Gain vs. Frequency [2]
40
40
30
30
20
20
10
GAIN (dB)
10
0
-10
VCTRL=0V
VCTRL=1V
VCTRL=1.5V
VCTRL=2V
VCTRL=2.5V
-20
-30
-40
0.5
0.6
0.7
0.8
0.9
1.1
1.2
1.3
1.4
-20
-30
VCTRL=3V
VCTRL=3.5V
VCTRL=4V
VCTRL=5V
1
0
-10
VCTRL=0V
VCTRL=1V
VCTRL=1.5V
VCTRL=2V
VCTRL=2.5V
-40
-50
-60
0.5
1.5
0.6
0.7
0.8
0.9
VCTRL=3V
VCTRL=3.5V
VCTRL=4V
VCTRL=5V
1
1.1
1.2
1.3
1.4
1.5
FREQUENCY (GHz)
FREQUENCY (GHz)
Input Return Loss vs. VCTRL [2]
Input Return Loss vs. VCTRL [1]
0
0
-40C
+25C
+85C
-5
INPUT RETURN LOSS (dB)
INPUT RETURN LOSS (dB)
2.5
VCTRL (V)
Gain vs. Frequency [1]
GAIN (dB)
AUTOMATIC GAIN CONTROL - SMT
40
-10
-15
-20
-25
-30
-40C
+25C
+85C
-5
-10
-15
-20
-25
-30
0
0.5
1
1.5
2
2.5
3
VCTRL (V)
3.5
4
4.5
5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
VCTRL (V)
[1] ATTN1 + AMP1 + AMP2
[2] ATTN1 + ATTN2 + AMP1 + AMP2
3
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
900MHz TUNE
Output Return Loss vs. VCTRL[2]
Output Return Loss vs. VCTRL [1]
-40C
+25C
+85C
-5
-10
-15
-20
-25
-30
-40C
+25C
+85C
-5
-10
-15
-20
-25
-30
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.5
1
1.5
2
VCTRL (V)
3
3.5
4
4.5
5
1.1
1.2
1.3
1.4
Output IP3 vs. Frequency [1]
Output IP3 vs. VCTRL [1]
60
60
55
55
50
50
OIP3 (dBm)
OIP3 (dBm)
2.5
VCTRL (V)
45
40
VCTRL=0V
VCTRL=1V
VCTRL=2V
VCTRL=3V
VCTRL=4V
VCTRL=5V
45
40
-40C
+25C
+85C
35
35
30
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
30
0.4
5
0.5
0.6
0.7
VCTRL (V)
0.8
0.9
1
AUTOMATIC GAIN CONTROL - SMT
0
OUTPUT RETURN LOSS (dB)
OUTPUT RETURN LOSS (dB)
0
FREQUENCY (GHz)
Output IP2 vs.VCTRL [1]
Output IP2 vs. Frequency [1]
70
70
65
65
55
OIP2 (dBm)
OIP2 (dBm)
60
50
45
VCTRL=0V
VCTRL=1V
VCTRL=2V
VCTRL=3V
VCTRL=4V
VCTRL=5V
40
35
30
0.4
60
55
50
-40C
+25C
+85C
45
40
0.5
0.6
0.7
0.8
0.9
1
FREQUENCY (GHz)
1.1
1.2
1.3
1.4
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
VCTRL (V)
[1] ATTN1 + AMP1 + AMP2
[2] ATTN1 + ATTN2 + AMP1 + AMP2
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
900MHz TUNE
Input IP3 vs. Frequency [1]
40
40
35
30
25
IIP3 (dBm)
IIP3 (dBm)
30
20
15
20
10
0
10
-40C
+25C
+85C
5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
VCTRL=0V
VCTRL=1V
VCTRL=2V
-10
0
-20
0.4
5
0.5
0.6
0.7
VCTRL (V)
0.8
VCTRL=3V
VCTRL=4V
VCTRL=5V
0.9
1
1.1
1.2
1.3
1.4
1.3
1.4
FREQUENCY (GHz)
Output P1dB vs. Frequency [1] [2]
Noise Figure vs. Frequency [1] [2]
30
12
29
10
28
27
8
26
NF (dB)
OP1dB (dBm)
AUTOMATIC GAIN CONTROL - SMT
Input IP3 vs.VCTRL [1]
25
24
4
23
-40C
+25C
+85C
22
21
20
0.4
6
0.5
0.6
0.7
-40C
+25C
+85C
2
0.8
0.9
1
FREQUENCY (GHz)
1.1
1.2
1.3
1.4
0
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
FREQUENCY (GHz)
[1] ATTN1 + AMP1 + AMP2
[2] VCTRL=Minimum Attenuation
5
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
1900MHz TUNE
Gain vs. VCTRL [2]
30
30
25
-40C
+25C
+85C
20
GAIN (dB)
GAIN (dB)
20
15
10
10
0
-40C
+25C
+85C
-10
5
0
-20
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.5
1
1.5
2
VCTRL (V)
40
30
30
20
20
10
10
0
0
-10
VCTRL=0V
VCTRL=1V
VCTRL=1.5V
VCTRL=2V
VCTRL=2.5V
-30
-40
1.4
1.5
1.6
1.7
1.8
3.5
4
4.5
5
VCTRL=3V
VCTRL=3.5V
VCTRL=4V
VCTRL=5V
1.9
2
2.1
2.2
2.3
-10
-20
VCTRL=0V
VCTRL=1V
VCTRL=1.5V
VCTRL=2V
VCTRL=2.5V
-30
-40
-50
1.4
2.4
1.5
1.6
1.7
FREQUENCY (GHz)
1.8
VCTRL=3V
VCTRL=3.5V
VCTRL=4V
VCTRL=5V
1.9
2
2.1
2.2
2.3
2.4
FREQUENCY (GHz)
Input Return Loss vs. VCTRL [1]
Input Return Loss vs. VCTRL [2]
0
0
-40C
+25C
+85C
-5
INPUT RETURN LOSS (dB)
INPUT RETURN LOSS (dB)
3
Gain vs. Frequency [2]
GAIN (dB)
GAIN (dB)
Gain vs. Frequency [1]
-20
2.5
VCTRL (V)
AUTOMATIC GAIN CONTROL - SMT
Gain vs. VCTRL [1]
-10
-15
-20
-25
-30
-40C
+25C
+85C
-5
-10
-15
-20
-25
-30
0
0.5
1
1.5
2
2.5
3
VCTRL (V)
3.5
4
4.5
5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
VCTRL (V)
[1] ATTN1 + AMP1 + AMP2
[2] ATTN1 + ATTN2 + AMP1 + AMP2
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
6
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
1900MHz TUNE
Output Return Loss vs. VCTRL [2]
0
-5
-5
-40C
+25C
+85C
-10
OUTPUT RETURN LOSS (dB)
OUTPUT RETURN LOSS (dB)
0
-15
-20
-25
-30
-35
-40
-45
-40C
+25C
+85C
-10
-15
-20
-25
-30
-35
-40
-45
-50
-50
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.5
1
1.5
2
VCTRL (V)
3
3.5
4
4.5
5
Output IP3 vs. Frequency [1]
60
55
55
50
50
OIP3 (dBm)
60
45
40
VCTRL=0V
VCTRL=1V
VCTRL=2V
VCTRL=3V
VCTRL=4V
VCTRL=5V
45
40
-40C
+25C
+85C
35
35
30
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
30
1.4
5
1.5
1.6
1.7
VCTRL (V)
75
75
70
70
OIP2 (dBm)
80
65
50
1.4
2
2.1
2.2
2.3
2.4
65
60
VCTRL=0V
VCTRL=1V
VCTRL=2V
VCTRL=3V
VCTRL=4V
VCTRL=5V
55
1.9
Output IP2 vs.VCTRL [1]
80
60
1.8
FREQUENCY (GHz)
Output IP2 vs. Frequency [1]
OIP2 (dBm)
2.5
VCTRL (V)
Output IP3 vs. VCTRL [1]
OIP3 (dBm)
AUTOMATIC GAIN CONTROL - SMT
Output Return Loss vs. VCTRL [1]
-40C
+25C
+85C
55
50
1.5
1.6
1.7
1.8
1.9
2
FREQUENCY (GHz)
2.1
2.2
2.3
2.4
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
VCTRL (V)
[1] ATTN1 + AMP1 + AMP2
[2] ATTN1 + ATTN2 + AMP1 + AMP2
7
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
1900MHz TUNE
Input IP3 vs. Frequency [1]
45
50
40
40
IIP3 (dBm)
IIP3 (dBm)
35
30
25
30
20
10
20
-40C
+25C
+85C
15
-10
1.4
10
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
VCTRL=0V
VCTRL=1V
VCTRL=2V
0
5
1.5
1.6
1.7
2
2.1
2.2
2.3
2.4
2.3
2.4
Noise Figure vs. Frequency [1] [2]
Output P1dB vs. Frequency [1] [2]
30
16
29
14
28
12
27
26
NF (dB)
OP1dB (dBm)
1.9
FREQUENCY (GHz)
VCTRL (V)
25
24
10
8
6
23
22
4
-40C
+25C
+85C
21
20
1.4
1.8
VCTRL=3V
VCTRL=4V
VCTRL=5V
1.5
1.6
1.7
1.8
1.9
2
FREQUENCY (GHz)
2.1
2.2
2.3
-40C
+25C
+85C
2
2.4
0
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
AUTOMATIC GAIN CONTROL - SMT
Input IP3 vs.VCTRL
[1]
FREQUENCY (GHz)
[1] ATTN1 + AMP1 + AMP2
[2] VCTRL=Minimum Attenuation
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
8
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
2400MHz TUNE
Gain vs. VCTRL [2]
40
30
-40C
+25C
+85C
20
20
GAIN (dB)
GAIN (dB)
30
10
0
10
0
-40C
+25C
+85C
-10
-10
-20
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.5
1
1.5
2
VCTRL (V)
20
20
10
10
0
0
GAIN (dB)
30
-10
-20
VCTRL=0V
VCTRL=1V
VCTRL=1.5V
VCTRL=2V
VCTRL=2.5V
-40
-50
1.9
2
2.1
2.2
2.3
VCTRL=3V
VCTRL=3.5V
VCTRL=4V
VCTRL=5V
2.4
3.5
4
4.5
5
2.5
2.6
2.7
2.8
-10
-20
VCTRL=0V
VCTRL=1V
VCTRL=1.5V
VCTRL=2V
VCTRL=2.5V
-30
-40
-50
1.9
2.9
2
2.1
2.2
FREQUENCY (GHz)
2.3
VCTRL=3V
VCTRL=3.5V
VCTRL=4V
VCTRL=5V
2.4
2.5
2.6
2.7
2.8
2.9
FREQUENCY (GHz)
Input Return Loss vs. VCTRL [1]
Input Return Loss vs. VCTRL [2]
0
0
-40C
+25C
+85C
-5
INPUT RETURN LOSS (dB)
INPUT RETURN LOSS (dB)
3
Gain vs. Frequency [2]
30
-30
2.5
VCTRL (V)
Gain vs. Frequency [1]
GAIN (dB)
AUTOMATIC GAIN CONTROL - SMT
Gain vs. VCTRL [1]
-10
-15
-20
-25
-30
-40C
+25C
+85C
-5
-10
-15
-20
-25
-30
0
0.5
1
1.5
2
2.5
3
VCTRL (V)
3.5
4
4.5
5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
VCTRL (V)
[1] ATTN1 + AMP1 + AMP2
[2] ATTN1 + ATTN2 + AMP1 + AMP2
9
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
2400MHz TUNE
Output Return Loss vs. VCTRL [1]
Output Return Loss vs. VCTRL [2]
-40C
+25C
+85C
-5
-10
-15
-20
-25
-30
-35
-40C
+25C
+85C
-5
-10
-15
-20
-25
-30
-35
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.5
1
1.5
2
VCTRL (V)
3
3.5
4
4.5
5
Output IP3 vs. Frequency [1]
Output IP3 vs. VCTRL [1]
60
60
55
55
50
50
OIP3 (dBm)
OIP3 (dBm)
2.5
VCTRL (V)
45
40
VCTRL=0V
VCTRL=1V
VCTRL=2V
VCTRL=3V
VCTRL=4V
VCTRL=5V
45
40
-40C
+25C
+85C
35
35
30
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
30
1.9
5
2
2.1
2.2
VCTRL (V)
2.3
2.4
2.5
2.6
2.7
2.8
AUTOMATIC GAIN CONTROL - SMT
0
OUTPUT RETURN LOSS (dB)
OUTPUT RETURN LOSS (dB)
0
2.9
FREQUENCY (GHz)
Output IP2 vs.VCTRL [1]
Output IP2 vs. Frequency [1] [3]
90
90
85
85
75
OIP2 (dBm)
OIP2 (dBm)
80
70
65
VCTRL=0V
VCTRL=1V
VCTRL=2V
VCTRL=3V
VCTRL=4V
VCTRL=5V
60
55
50
1.9
80
75
70
-40C
+25C
+85C
65
60
2
2.1
2.2
2.3
2.4
2.5
FREQUENCY (GHz)
2.6
2.7
2.8
2.9
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
VCTRL (V)
[1] ATTN1 + AMP1 + AMP2
[2] ATTN1 + ATTN2 + AMP1 + AMP2
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
10
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
2400MHz TUNE
Input IP3 vs. Frequency [1]
50
50
45
40
IIP3 (dBm)
IIP3 (dBm)
40
35
30
30
20
10
25
-40C
+25C
+85C
20
0
15
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
-10
1.9
5
VCTRL=0V
VCTRL=1V
VCTRL=2V
2
2.1
2.2
VCTRL (V)
2.4
2.5
2.6
2.7
2.8
2.9
2.8
2.9
Noise Figure vs. Frequency [1] [2]
30
16
29
14
28
12
27
NF (dB)
26
25
24
10
8
6
23
22
4
-40C
+25C
+85C
21
20
1.9
2.3
VCTRL=3V
VCTRL=4V
VCTRL=5V
FREQUENCY (GHz)
Output P1dB vs. Frequency [1] [2]
OP1dB (dBm)
AUTOMATIC GAIN CONTROL - SMT
Input IP3 vs.VCTRL [1]
2
2.1
2.2
2.3
2.4
2.5
FREQUENCY (GHz)
2.6
2.7
2.8
-40C
+25C
+85C
2
2.9
0
1.9
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
FREQUENCY (GHz)
[1] ATTN1 + AMP1 + AMP2
[2] VCTRL=Minimum Attenuation
11
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
2800MHz TUNE
30
30
25
10
15
GAIN (dB)
GAIN (dB)
20
-40C
+25C
+85C
20
10
5
0
-10
-20
0
VCTRL=0V
VCTRL=1V
VCTRL=1.5V
VCTRL=2V
VCTRL=2.5V
-30
-5
-10
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
-40
2.3
5
2.4
2.5
2.6
VCTRL (V)
2.9
3
3.1
3.2
3.3
Output Return Loss vs. VCTRL [1]
0
OUTPUT RETURN LOSS (dB)
0
INPUT RETURN LOSS (dB)
2.8
FREQUENCY (GHz)
Input Return Loss vs. VCTRL [1]
-40C
+25C
+85C
-5
-10
-15
-20
-25
-30
-40C
+25C
+85C
-5
-10
-15
-20
-25
-30
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.5
1
1.5
VCTRL (V)
2
2.5
3
3.5
4
4.5
5
3
3.1
3.2
3.3
VCTRL (V)
Output IP3 vs. Frequency [1]
Output IP3 vs. VCTRL [1]
60
50
55
45
-40C
+25C
+85C
50
OIP3 (dBm)
OIP3 (dBm)
2.7
VCTRL=3V
VCTRL=3.5V
VCTRL=4V
VCTRL=5V
AUTOMATIC GAIN CONTROL - SMT
Gain vs. Frequency [1]
Gain vs. VCTRL [1]
45
40
35
40
30
35
25
30
0
0.5
1
1.5
2
2.5
3
VCTRL (V)
3.5
4
4.5
5
20
2.3
VCTRL=0V
VCTRL=1V
VCTRL=2V
VCTRL=3V
VCTRL=4V
VCTRL=5V
2.4
2.5
2.6
2.7
2.8
2.9
FREQUENCY (GHz)
[1] ATTN1 + AMP1 + AMP2
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
2800MHz TUNE
Output IP2 vs.VCTRL [1]
80
80
75
75
65
OIP2 (dBm)
OIP2 (dBm)
70
60
55
VCTRL=0V
VCTRL=1V
VCTRL=2V
VCTRL=3V
VCTRL=4V
VCTRL=5V
50
45
40
2.3
70
65
60
-40C
+25C
+85C
55
50
2.4
2.5
2.6
2.7
2.8
2.9
3
3.1
3.2
0
3.3
0.5
1
1.5
FREQUENCY (GHz)
2.5
3
3.5
4
4.5
5
Input IP3 vs. Frequency [1]
50
50
45
40
IIP3 (dBm)
40
35
30
30
20
10
25
-40C
+25C
+85C
20
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
VCTRL=0V
VCTRL=1V
VCTRL=2V
0
15
-10
2.3
5
2.4
2.5
2.6
VCTRL (V)
2.8
2.9
3
3.1
3.2
3.3
3.2
3.3
Noise Figure vs. Frequency [1] [2]
30
20
29
18
-40C
+25C
+85C
28
27
16
14
NF (dB)
26
25
24
12
10
8
23
6
22
4
21
2
20
2.3
2.7
VCTRL=3V
VCTRL=4V
VCTRL=5V
FREQUENCY (GHz)
Output P1dB vs. Frequency [1] [2]
OP1dB (dBm)
2
VCTRL (V)
Input IP3 vs.VCTRL [1]
IIP3 (dBm)
AUTOMATIC GAIN CONTROL - SMT
Output IP2 vs. Frequency [1]
2.4
2.5
2.6
2.7
2.8
2.9
FREQUENCY (GHz)
3
3.1
3.2
3.3
0
2.3
-40C
+25C
+85C
2.4
2.5
2.6
2.7
2.8
2.9
3
3.1
FREQUENCY (GHz)
[1] ATTN1 + AMP1 + AMP2
[2] VCTRL=Minimum Attenuation
13
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
VDD, DETVDD, DETEN,
DETSET,DETRSSI, AMP1OUT,
AMP2OUT
+5.6 V
Continuous Pdiss (T=85 °C)
Derate 41.8 mW/°C above 85 °C
1.7 W
VCTRL
-0.6V to VDD+0.6V
Thermal Resistance (Rth)
(junction to package bottom)
23.9°C/W
ATTN1IN, ATTN2IN Input Power
+20 dBm
Storage Temperature
-65 to +150°C
AMP1IN RF Input Power
+8 dBm
Operating Temperature
-40 to +85 °C
AMP2IN RF Input Power
+18 dBm
ESD Sensitivity (HBM)
Class 1A
DETOUT Output Current
5 mA
DETIN RF Iput Power
12 dBm
Junction Temperature
125°C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
AUTOMATIC GAIN CONTROL - SMT
Absolute Maximum Ratings
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEAD AND GROUND PADDLE MATERIAL: COPPER ALLOY.
3. LEAD AND GROUND PADDLE PLATING: 100% MATTE TIN.
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
6. CHARACTERS TO BE HELVETICA MEDIUM, .025 HIGH, WHITE INK, OR LASER MARK LOCATED APPROX. AS SHOWN.
7. PAD BURR LENGTH SHALL BE 0.15mm MAX. PAD BURR HEIGHT SHALL BE 0.25mm MAX.
8. PACKAGE WARP SHALL NOT EXCEED 0.05mm
9. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND.
10. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED PCB LAND PATTERN.
Package Information
Part Number
Package Body Material
Lead Finish
HMC993LP5E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL Rating
MSL1
[2]
Package Marking [1]
H993
XXXX
[1] 4-Digit lot number XXXX
[2] Max peak reflow temperature of 260 °C
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
14
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
AUTOMATIC GAIN CONTROL - SMT
Pin Descriptions
15
Pin Number
Function
Description
1, 3, 5, 8, 15, 17,
24, 26, 28, 30
GND
These pins and package bottom must be connected to RF
ground.
2, 29
ATTN2OUT,
ATTN1OUT
These ports are matched to 50 Ohms.
Blocking capacitor is required.
4, 9, 31
VDD
Power supply for the attenuator. External bypass
capacitors are required. See application circuits.
6, 32
ATTN2IN,
ATTN1IN
These ports are matched to 50 Ohms.
Blocking capacitor is required.
7
VCTRL
Attenuation control voltage for the attenuator.
0V for minimum attenuation, 5V for maximum attenuation.
10, 11, 12, 22
N/C
No connection required. These pins may be connected to
RF ground without affecting performance.
13
DETOUT
Logarithmic output that converts the input power to a DC
level in detector mode. Output voltage increases with
increasing amplitude.
14
DETVDD
Power supply for the logarithmic detector. External by pass
capacitors are required. See application circuit.
16
DETIN
Detector RF input pin.
Interface Schematic
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
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Application Support: Phone: 978-250-3343 or [email protected]te.com
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
Pin Descriptions (continued)
Function
Description
18
DETEN
Enable pin.
Apply VEN > 0.8xVcc for normal operation.
Apply VEN < 0.2xVcc to disable the detector.
19
DETSET
Set point input for controller mode.
Connect to DETOUT with the resistor network shown in
evaluation board drawing for detector mode.
20
DETRSSI
Connection for ground referenced external lowpass filter
capacitor.
21, 25
AMP2OUT,
AMP1OUT
These ports are mathed to 50 Ohms. External Choke
inductor and DC blocking capacitor are required.
See application circuits.
23, 27
AMP2IN,
AMP1IN
These ports are matched to 50 Ohms.
Blocking capacitor is required.
Interface Schematic
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
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Application Support: Phone: 978-250-3343 or [email protected]
AUTOMATIC GAIN CONTROL - SMT
Pin Number
16
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
AUTOMATIC GAIN CONTROL - SMT
Application Circuit - 900 MHz
17
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
AUTOMATIC GAIN CONTROL - SMT
Evaluation PCB - 900 MHz
List of Materials for Evaluation PCB EVAL01-HMC993LP5E[1]
Item
Description
Item
Description
J1-J6
SMA Connector
L4
3.9 nH Inductor, 0603 Pkg.
J7
DC Connector Header
C2, C6, C10, C22,
C24
0 Ohm Resistor, 0402 Pkg.
100 pF Capacitor, 0402 Pkg.
R1-R6, R9-R10,
R13, R18-R20
R8
51 Ohms Resistor, 0402 Pkg.
C4
1 µF Capacitor, 0603 Pkg.
R11, R15
10 kOhms Resistor, 0402 Pkg.
C7
1 µF Capacitor, 0402 Pkg.
R14
1 kOhms Resistor, 0402 Pkg.
C8-C9, C15-C16,
C18, C20
0.1 µF Capacitor, 0402 Pkg.
U1
HMC993LP5E
RF-Automatic Gain Controller
C11, C14, C17, C19,
C21, C25
1000 pF Capacitor, 0402 Pkg.
PCB [2]
600-00116-00 Evaluation PCB
C13, C30
33 µF Capacitor, Tantalum
C28
5.6 pF Capacitor, Ultra Low ESR, 0603
Pkg.
C29
2.4 pF Capacitor, Ultra Low ESR, 0402
Pkg.
L1
56 nH Inductor, 0603 Pkg.
L2
18 nH Inductor, 0603 Pkg.
L3
4.7 nH Inductor, 0402 Pkg.
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350 or Arlon 25 FR
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
18
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
AUTOMATIC GAIN CONTROL - SMT
Application Circuit - 1900, 2400 & 2800 MHz
Components for Selected Frequency Values
19
Tune Option
Evaluation PCB Number
C24
C27
C28
C29
L1
1900 MHz
EVAL02-HMC993LP5E
15 pF
2.7 pF
6.8 pF
1.2 pF
24 nH
2400 MHz
EVAL03-HMC993LP5E
10 pF
1.6 pF
3.0 pF
0.8 pF
15 nH
2800 MHz
EVAL04-HMC993LP5E
6.8 pF
1.5 pF
1.5 pF
0.7 pF
15 nH
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
AUTOMATIC GAIN CONTROL - SMT
Evaluation PCB - 1900, 2400 & 2800 MHz
List of Materials for Evaluation PCB [1]
Item
Description
Item
Description
J1-J6
SMA Connector
J7
DC Connector Header
R1-R6, R9-R10,
R13, R18-R20, R34
0 Ohm Resistor, 0402 Pkg.
C2, C6, C10, C22
100 pF Capacitor, 0402 Pkg.
R8
51 Ohms Resistor, 0402 Pkg.
1 µF Capacitor, 0603 Pkg.
R11, R15
10 kOhms Resistor, 0402 Pkg.
C7
1 µF Capacitor, 0402 Pkg.
R14
1 kOhms Resistor, 0402 Pkg.
C8-C9, C15-C16,
C18, C20
0.1 µF Capacitor, 0402 Pkg.
U1
HMC993LP5E
RF-Automatic Gain Controller
C11, C14, C17, C19,
C21, C25
1000 pF Capacitor, 0402 Pkg.
PCB [2]
600-00116-00 Evaluation PCB
C13, C30
33 µF Capacitor, Tantalum
C24
Capacitor, Ultra Low ESR, 0603 Pkg.
C27
Capacitor, Ultra Low ESR, 0402 Pkg.
[2] Please refer to “Components for Selected Frequency Tune”
table for values
C28
Capacitor, Ultra Low ESR, 0603 Pkg.
[3] Circuit Board Material: Rogers 4350 or Arlon 25 FR
C29
Capacitor, Ultra Low ESR, 0402 Pkg.
L1
Inductor, 0603 Pkg.
L2
3.3 nH Inductor, 0603 Pkg.
C4
[1] When requesting an evaluation board, please reference the
appropriate evaluation PCB number listed in the table “Components for Selected Frequency Tune”
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
20
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
Application Information
AUTOMATIC GAIN CONTROL - SMT
Introduction
The HMC993LP5E is a complete high performance Automatic Gain Control (AGC) solution, housing a Variable Gain
Amplifier (VGA) core and a control core in a single package. Its unique VVA technology provides constant OIP3 over
the entire control voltage range. The HMC993LP5E greatly simplifies the design of gain control loops by increasing
the integration level and reducing the number of required circuit elements. The VGA core of the HMC993LP5E is
composed of two identical voltage variable attenuators followed by two gain block amplifiers which operate from 0.7
to 3.0 GHz. The HMC993LP5E’s control core features a high accuracy log detector. As shown in the functional block
diagram, the HMC993LP5E combines all of these cores in a highly compact 5 x 5 mm plastic package, and offers an
easy-to-use, temperature stable AGC solution.
The HMC993LP5’s VGA core has a flexible structure where a single attenuator (22.2 dB at 1900 MHz) or two attenuators (33.6 dB at 1900 MHz) can be used depending upon the dynamic range requirement. Inputs and outputs of
the HMC993LP5E’s attenuators and first amplifier (ATTIN1, ATTOUT1, ATTIN2, ATTOUT2, AMPIN1, AMPOUT1) are
broadband matched to 50 Ohm single-ended and require only external DC blocking capacitors over the entire frequency band of operation. The input of the HMC993LP5E’s log detector (RFDETIN) is also broadband matched to 50
Ohm single-ended and does not require any matching components. Input and output of the HMC993LP5E’s second
amplifier (AMPIN2, AMPOUT2) need power matching components for key application frequencies. Refer to application circuits for example application frequencies.
The HMC993LP5E requires a single 5V supply with adequate power supply decoupling as recommended in the application schematics.
Figure 1a: The HMC993LP5E’s VGA configuration with 1 attenuator, 1900 MHz tune.
21
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
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Application Support: Phone: 978-250-3343 or [email protected]
HMC993LP5E
v00.0911
Figure 1b: The HMC993LP5E’s VGA configuration with 2 attenuators, 1900 MHz tune.
VGA Operation
AUTOMATIC GAIN CONTROL - SMT
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
The HMC993LP5E’s VGA core can be configured with one or two variable attenuators followed by two fixed gain
amplifiers for different control ranges as shown in Figure 1a and Figure 1b (basic connections are not shown). Note
that the link between VCTRL and DETOUT pins must be broken for correct VGA Operation. The VCTRL pin should be
used to set the attenuation of the HMC993LP5E.
Gain Control Interface VCTRL
The VCTRL pin is the gain control pin common to both of HMC993LP5E’s identical voltage variable attenuators. The
VCTRL gain control voltage ranges between 1V and 4V. A VCTRL control voltage of 1V provides the lowest attenuation,
while 4V provides the highest attenuation.
Figure 2 represents the VGA operation of HMC993LP5E with two attenuators and two amplifiers for different gain control
voltages applied to the VCTRL pin. The output power increases linearly with the input power until the power saturation is
reached when the VCTRL voltage is constant. The useable input power range of such a system is limited by the saturation level of the final stage amplifier. So the input power level required for power saturation and the dynamic range of the
HMC993LP5E’s VGA is defined by the value of the gain control voltage applied to the VCTRL pin. Refer to the Figure 2
for the useable input power range at different VCTRL levels.
When VCTRL=1V, the gain of HMC993LP5E’s VGA with 2 attenuators is 21.5 dB at 1900 MHz. The input power required
for 1 dB compression point at the output is given by: Pin1dB = Pout1dB – Gain (dB) + 1 = 25 – 21.5 + 1 = 4.5 dB.
When VCTRL=2V, the gain of the HMC993LP5E’s VGA with 2 attenuators is 11.7 dB at 1900 MHz. The input power
required for 1 dB compression point at the output is given by: Pin1dB = Pout1dB – Gain (dB) + 1 = 25 – 11.7 + 1 = 14.3
dB.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
22
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
30
OUTPUT POWER (dBm)
VCTRL=1 V
VCTRL=2 V
VCTRL=3 V
VCTRL=4 V
10
0
-10
-20
-30
-40
-50
-70
-60
-50
-40
-30
-20
-10
0
10
INPUT POWER (dBm)
Figure 2: Pout vs. Pin at 1900 MHz, 1 attenuator
Therefore, increasing the VCTRL pin voltage reduces the gain of the HMC993LP5E’s VGA and increases input power
level required for power saturation. When the input signal is weak, the attenuation level of the variable attenuators
should be reduced. When the input signal is large; the attenuation level of the variable attenuators should be increased
to achieve a constant output level.
The gain control performance of the HMC993LP5E at 1900 MHz is shown in Figures 3. The HMC993LP5E provides
22.2 dB of gain control range with a maximum gain of 26 dB when it is configured in 1 attenuator + 2 amplifiers mode,
and similarly a 33.6 dB of gain control range with a maximum gain of 21.5 dB of gain when it is configured in 2 attenuators + 2 amplifiers mode. The HMC993LP5E’s VGA has a very flat linear-in-dB gain control characteristic with a slope of
-12.97 dB/V for the 2 attenuators configuration and -7.28 dB/V for the 1 attenuator configuration. The log-linearity error
of the HMC993LP5 VGA is typically less than ± 2dB over the entire gain control range.
30
20
GAIN (dB)
AUTOMATIC GAIN CONTROL - SMT
20
10
0
-10
1 Attenuator
2 Attenuators
-20
1
1.5
2
2.5
3
3.5
4
VCTRL (V)
Figure 3: Gain vs. VCTRL at 1900 MHz
Noise and Distortion
As with any multistage VGA consisting of voltage variable attenuators and gain blocks, the noise figure (NF) and input
referred distortion (IIP3) characteristics of the HMC993LP5E’s VGA are dependent on the gain control voltage VCTRL.
When the attenuation level of the variable attenuators is set to minimum (maximum gain state), the noise figure of the
HMC993LP5E’s VGA is minimized; however the IIP3 is degraded to minimum as well. The noise figure and IIP3 of the
HMC993LP5E’s VGA increases with the attenuation level of the variable attenuators.
For low attenuation levels, the noise contribution from the VGA is important since the input signal is weak. For high atten-
23
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
For low attenuation levels of the variable attenuators, IIP3 is less important since high gain of whole VGA improves distortion performance at its output (OIP3). For high attenuation levels of the variable attenuators, IIP3 is more important
because of low gain of whole VGA. The distortion performance of the HMC993LP5E’s VGA at 1900 MHz is shown in
Figure 4. The HMC993LP5E’s VGA provides an almost constant OIP3 of up to +45 dBm in any state when it is configured in one attenuator and two amplifiers mode.
50
40
40
Noise Figure
Gain
OIP3
30
30
20
20
10
10
0
OIP3 (dBm)
NOISE FIGURE, GAIN (dB)
50
0
1
1.5
2
2.5
3
3.5
4
VCTRL (V)
Figure 4: Noise Figure & Gain & OIP3 vs. VCTRL at 1900 MHz, 1 attenuator.
AGC Operation
The HMC993LP5E can be configured as an AGC amplifier by using VGA core and the built in log detector. An example
for AGC amplifier configuration of the HMC993LP5E is depicted in Figure 5.
AUTOMATIC GAIN CONTROL - SMT
uation levels of the variable attenuators, the noise contribution from the VGA is less important and the noise requirement
of the VGA is relaxed since the input signal is high. The noise figure performance of the HMC993LP5E’s VGA at 1900
MHz is shown in Figure 4. The HMC993LP5E’s VGA delivers a noise figure of 9.8 dB in its maximum gain state when it
is configured in 1 attenuator + 2 amplifiers mode.
In AGC amplifier configuration, the input signal is amplified by the HMC993LP5E’s VGA. The output of the HMC993LP5E’s
VGA core is fed back to the input of the HMC993LP5E’s log detector (RFDETIN) through an external coupler or attenuator to drop the maximum and minimum output level of the HMC993LP5E’s VGA to within the dynamic range of the
HMC993LP5E’s log detector. The HMC993LP5E’s log detector produces a voltage at the output of the log detector
(DETOUT) proportional to the output power level of the HMC993LP5E’s VGA. The high impedance output pin DETOUT
is connected to the gain control pin VCTRL of VGA to form the AGC loop. The VSET pin is the constant output power set
point of the AGC amplifier. As a result of negative feedback, the gain of the VGA is automatically adjusted to maintain a
constant signal power level at the output of AGC amplifier. The output signal power level is determined by the AGC set
point VSET, regardless of the input signal variation.
AGC Set point Interface VSET
In closed loop AGC operation the output power level of the HMC993LP5E is controlled by the VSET pin. An input voltage between 0.2V and 1.2V should be applied to the VSET input pin to control the output power level. Output power vs.
VSET characteristic is shown in Figure 6a and Figure 6b for different input power levels and different coupler ratios used.
The slope of the gain vs. VSET characteristic is 58.3dB/V and it is independent of the coupler ratio used.
The relation between the gain of HMC993LP5E’s output power and VSET pin voltage at 1900 MHz can be approximated
as given in Equation (1) when it is configured in AGC amplifier configuration with 2 attenuator + 2 amplifiers.
Output Power (dBm) = -67.7 + |Coupler Ratio| + 58.3 x VSET
Equation (1)
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
24
HMC993LP5E
v00.0911
AUTOMATIC GAIN CONTROL - SMT
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
Figure 5: The HMC993LP5E’s AGC configuration with 2 attenuators, 1900 MHz tune.
[email protected] = -20 dBm
[email protected] = -10 dBm
[email protected] = 0 dBm
4
30
3
20
2
0
1
-10
0
-20
-1
20 dB coupler is used
-30
-2
Input Power = -20 dBm
Input Power = -10 dBm
Input Power = 0 dBm
Ideal
-40
-50
0.2
0.4
0.6
0.8
1
-10
-1
-30
-4
0.2
1
0
-20
-50
VSET (V)
2
Pin=-10dBm
0
-3
Figure 6a: Output Power vs. VSET over Input Power,
2 attenuators @ 1900 MHz.
3
10
-40
1.2
4
[email protected]= -13 dBm
[email protected]= -20 dBm
[email protected]= -30 dBm
Coupler= -13 dBm
Coupler= -20dBm
Coupler= -30 dBm
Ideal= -13 dBm
Ideal= -20 dBm
Ideal= -30 dBm
ERROR (dB)
10
ERROR (dB)
OUTPUT POWER (dBm)
20
OUTPUT POWER (dBm)
30
-2
-3
-4
0.4
0.6
0.8
1
1.2
VSET (V)
Figure 6b: Output Power vs. VSET over coupler
ratio, 2 attenuators @ 1900 MHz.
In closed loop operation the HMC993LP5E is able to automatically adjust the RF gain over a gain adjustment range of
up to 33.6 dB at 1900 MHz. The HMC993LP5E’s output dynamic range is a function of both input power level and the
coupler ratio used to close the AGC loop. The combined effect of the input power and coupler ratio on the output power
dynamic range is presented in Figures 6a and 6b.
For high input power levels, the maximum level of output dynamic range is limited by the Psat of the VGA or the highest detectable power level by the log detector. To eliminate any limitations that can arise due to highest detectable log
25
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
Similarly, the lower side of the dynamic range is limited by the noise floor of the VGA or the lowest power level detectable by the log detector. To eliminate any limitations on the lower side of the dynamic range, the coupler ratio should be
low enough to translate the minimum VGA output power level to a value higher than the lowest detectable log detector
power level.
Please also refer to the Log Detector section for more information.
Figure 7a shows the output power vs. input power transfer characteristic of the HMC993LP5E over different VSET
voltages for a closed AGC loop configuration. For low and high input power levels the HMC993LP5E attenuation rage
is saturated and the output is a linear function of the input. For input power levels within the dynamic range, the
HMC993LP5E automatically adjusts the attenuation level as shown in Figure 7b to maintain a constant output power
level. When Vset=0.5 V, the output power level is set to -18.7 dBm and the HMC993LP5E’s AGC amplifier provides a
gain control range of 33.6 dB from -40.2 dBm to -6.6 dBm with an excellent ripple within 0.7 dB.
5
VSET=0.3V
VSET=0.5V
VSET=0.7V
-10
Vset = 0.3V
Vset = 0.5V
Vset = 0.7V
4
DETOUT (V)
OUTPUT POWER (dBm)
0
-20
3
2
-30
1
20 dB coupler is used
-40
-60
-50
-40
-30
-20
-10
0
20 dB coupler is used
10
INPUT POWER (dBm)
Figure 7a: Output Power vs. input power over VSET,
2 attenuators @ 1900 MHz.
0
-60
-50
-40
-30
-20
-10
0
10
AUTOMATIC GAIN CONTROL - SMT
detector, a high enough coupler ratio should be chosen to translate the maximum VGA output power level to a value
lower than the highest detectable log detector power level.
INPUT POWER (dBm)
Figure 7b: DETOUT vs. input power over VSET, 2
attenuators @ 1900 MHz..
Log Detector
The logarithmic detector of the HMC993LP5E converts the average envelope of RF input power to a proportional DC
voltage at its output (DETOUT), as shown in Figure 8. In detection mode, the DETOUT pin should be connected to
the VSET input. The HMC993LP5E’s logarithmic detector employs a successive compression technology which delivers 50 dB of dynamic range (±1dB) with high conversion accuracy over a wide input frequency range. Note that the
link between DETOUT and VCTRL pins must broken and DETOUT must connected to VSET via 1k Ohms resistor for
LOGAMP operation.
The HMC993LP5E’s logarithmic detector can be used in the controller mode where an external voltage is applied to the
VSET pin to create an AGC loop. The linear-in-dB behavior of the HMC993LP5E’s VGA and logarithmic detector creates
a linear AGC system. For linear operation, the signal fluctuations at the input of the log detector should remain within
the dynamic range of the log detector. In closed loop AGC operation, the HMC993LP5E’s response to large input level
changes is not slew-rate limited, and the speed of the transient response can be adjusted through loop filter capacitors
C4 and C7 (see Figure 5).
To achieve maximum gain adjustment range of the HMC993LP5E, the coupler ratio should be chosen based on the
output power desired. A coupler ratio which translates the output power to the center (~-25dBm) of the usable dynamic
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]
26
HMC993LP5E
v00.0911
RF AUTOMATIC GAIN CONTROLLER
(RF-AGC), 700 - 3000 MHz
If the linear operation range of the HMC993LP5E is maximized by selecting the appropriate coupler ratio, the
HMC993LP5E can handle larger changes in input level. For example, an input voltage of 0.5 V is applied to the Vset
pin to set the constant output power level to -18.7 dBm. A coupler ratio of ~7 dB can be chosen to provide a maximum
dynamic range of 33.6 dB.
1.5
900 MHz
1900 MHz
2400 MHz
2800 MHz
1.2
DETOUT (V)
AUTOMATIC GAIN CONTROL - SMT
range of the log detector should be chosen. The gain adjustment range of the HMC993L5E is maximized in this configuration.
0.9
0.6
0.3
0
-70
-60
-50
-40
-30
-20
-10
0
10
INPUT POWER (dBm)
Figure 8: DETOUT vs. input power over frequency.
Loop Bandwidth and Response Time
The AGC system has a response time to undesired input level fluctuations. Response time and the stability of the
HMC993LP5E’s AGC loop is determined by C4 and C7 in the application schematic. The HMC993LP5E’s response to
voltage changes in VSET with C4=C7=1μF when the input level is kept constant is shown in Figure 9.
4
3.5
VCTRL (V)
3
2.5
2
1.5
Pin = -10 dBm
1
0
100
200
300
400
500
600
700
800
900 1000
TIME (ms)
Figure 9: HMC993LP5E’s gain control voltage when
VSET is toggled between 0.3V - 0.7V and input level
is kept constant in closed loop.
27
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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]