HMC707LP5 / 707LP5E
v04.0409
0.5 dB LSB 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, 700 - 1200 MHz
Features
-2.5 to +29 db gain Control in 0.5 db steps
power-up state selection
High Output ip3: +38 dbm
low noise figure: 0.8 db
ttl/CmOs Compatible
serial, parallel, or latched parallel Control
±0.25 db typical step error
single +3V and +5V supply
32 lead 5x5mm smt package: 25mm
2
Typical Applications
the HmC707lp5(e) is ideal for:
• Cellular infrastructure
• Wibro, WimaX and lte/4g
• microwave radio & Vsat
• test equipment and sensors
• if & rf applications
12
Variable gain amplifiers - digital - smt
Functional Diagram
General Description
the HmC707lp5(e) is a digitally controlled variable
gain amplifier which operates from 700 mHz to 1200
mHz, and can be programmed to provide between
-2.5 db attenuation and 29 db of gain, in 0.5 db steps.
the HmC707lp5(e) delivers noise figure of 0.8 db
in its maximum gain state, with output ip3 of up to
+38 dbm. the dual mode gain control interface ac-
cepts either three wire serial input or 6-bit parallel
word. the HmC707lp5(e) also features a user
selectable power up state and a serial output for
cascading other Hittite serially controlled components.
for 1900 mHz applications please refer to the
HmC708lp5(e) data sheet.
Rbias = 820 Ohms for Vdd = +5V, Rbias = 4.7 kOhms for Vdd = +3V, Vdd = Vdd1 = Vdd2
parameter
frequency range
gain (maximum gain state)
gain Control range
input return loss
Output return loss
attenuation accuracy: (referenced to maximum gain state)
Output power for 1 db Compression
Output third Order intercept point
noise figure
switching Characteristics
trise, tfall (50% Ctl to 90% rf)
Current amp 1
Current amp 2
25
130
24
min.
typ.
Vdd = +3V
0.7 - 1.2
27.5
31.5
11
12.5
±(0.3 + 4.5%) of attenuation setting
12
15
33
[1]
Electrical Specifications,
T
A
= +25° C,
max.
min.
typ.
Vdd = +5V
0.7 - 1.2
max.
Units
gHz
db
db
db
db
db
dbm
25
29
31.5
14
15.5
±(0.3 + 4.5%) of attenuation setting
18
21
38.5
0.8
205 / 180
[2]
dbm
db
ns
115
190
ma
ma
0.8
-
35
155
45
190
68
130
88
155
[1] two-tone output power @ -10 dbm [2] two-tone output power @ -5 dbm
12 - 1
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 apps@hittite.com
HMC707LP5 / 707LP5E
v04.0409
0.5 dB LSB 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, 700 - 1200 MHz
Maximum Gain vs. Frequency
[1]
36
Vdd=5V
Normalized Attenuation
(Only Major States are Shown)
0
NORMALIZED ATTENUATION (dB)
-5
-10
-15
-20
-25
-30
-35
0.5
Vdd=3V
Vdd=5V
32
GAIN (dB)
28
Vdd=3V
24
+25C
+85C
-40C
20
16
0.5
0.7
0.9
1.1
FREQUENCY (GHz)
1.3
1.5
0.6
0.7
0.8
0.9
1
1.1 1.2
FREQUENCY (GHz)
1.3
1.4
1.5
12
Variable gain amplifiers - digital - smt
12 - 2
Input Return Loss
(Only Major States are Shown)
0
Output Return Loss
(Only Major States are Shown)
0
-5
RETURN LOSS (dB)
RETURN LOSS (dB)
-5
Vdd=3V
Vdd=5V
-10
-15
-20
-25
Vdd=3V
Vdd=5V
-10
-15
-20
0.5
0.7
0.9
1.1
FREQUENCY (GHz)
1.3
1.5
-30
0.5
0.7
0.9
1.1
FREQUENCY (GHz)
1.3
1.5
Output IP3 vs. Tone Power
[1]
44
Pout=-15 dBm
Pout=-10 dBm
Pout= -5 dBm
Pout= 0 dBm
Output IP3 vs. Attenuation @ 900 MHz
40
40
IP3 (dBm)
Vdd=5V
30
IP3 (dBm)
Pout=-5dBm
36
Vdd=3V
20
Vdd=3V
Vdd=5V
32
10
Pout=-10dBm
28
0.7
0
0.8
0.9
1
FREQUENCY (GHz)
1.1
1.2
0
4
8
12
16
20
24
ATTENUATION STATE (dB)
28
32
[1] maximum gain state with digital attenuation set to minimum attenuation
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 apps@hittite.com
HMC707LP5 / 707LP5E
v04.0409
0.5 dB LSB 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, 700 - 1200 MHz
Bit Error vs. Frequency
(Only Major States are Shown)
2
1.5
1
BIT ERROR (dB)
0.5
0
-0.5
-1
-1.5
-2
0.5
0.6
0.7
0.8
Vdd=3V
Vdd=5V
Bit Error vs. Attenuation State
1.2
1
BIT ERROR (dB)
0.8
0.6
0.4
0.2
0
-0.2
0.9GHz, 1GHz, 1.1GHz, 1.2GHz
Vdd=3V
Vdd=5V
700MHz, 800MHz
12
Variable gain amplifiers - digital - smt
10
5
RELATIVE PHASE (deg)
0
-5
-10
-15
-20
0.5
0.9
1
1.1 1.2
FREQUENCY (GHz)
1.3
1.4
1.5
0
4
8
12
16
20
24
ATTENUATION STATE (dB)
28
32
Relative Phase vs. Frequency
(Only Major States are Shown)
Step Error vs. Frequency
(Only Major States are Shown)
1
0.8
0.6
STEP ERROR (dB)
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
Vdd=3V
Vdd=5V
Vdd=3V
Vdd=5V
0.7
0.9
1.1
FREQUENCY (GHz)
1.3
1.5
-1
0.5
0.6
0.7
0.8
0.9
1
1.1 1.2
FREQUENCY (GHz)
1.3
1.4
1.5
Noise Figure vs. Frequency
1.4
1.2
NOISE FIGURE (dB)
1
0.8
0.6
0.4
0.2
0
0.7
Noise Figure vs. Attenuation @ 900 MHz
20
NOISE FIGURE (dB)
Vdd=3V
Vdd=5V
16
12
Vdd=3V
Vdd=5V
8
4
0.8
0.9
1
FREQUENCY (GHz)
1.1
1.2
0
0
4
8
12
16
20
24
ATTENUATION (dBm)
28
32
12 - 3
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 apps@hittite.com
HMC707LP5 / 707LP5E
v04.0409
0.5 dB LSB 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, 700 - 1200 MHz
Output IP3 & Supply Current vs.
Supply Voltage @ 900 MHz
44
IP3 @0.9GHz
Output IP3 & Supply Current vs.
Rbias @ 900 MHz
300
45
500
40
IP3 (dBm)
250
IP3 (dBm)
35
400
DC CURRENT (mA)
Idd (mA)
36
200
25
Vdd=3V
Vdd=5V
300
32
Idd
150
15
200
28
2.7
3.1
3.5
3.9
4.3
4.7
5.1
100
5.5
5
1
10
100
Rbias (Ohms)
1000
100
10000
VOLTAGE SUPPLY (V)
Option 1
[1]
: Amp1 + 6-Bit DAT only
Gain & Return Loss
[1] [2]
30
20
RESPONSE (dB)
10
0
S11
Vdd=3V
Vdd=5V
S21
12
Variable gain amplifiers - digital - smt
12 - 4
Noise Figure vs. Frequency
[1] [2]
1.5
1.2
NOISE FIGURE (dB)
Vdd=3V
Vdd=5V
0.9
0.6
-10
-20
S22
0.3
-30
0.5
0.6
0.7
0.8
0.9
1
1.1 1.2
FREQUENCY (GHz)
1.3
1.4
1.5
0
0.5
0.7
0.9
1.1
FREQUENCY (GHz)
1.3
1.5
Output IP3 vs. Attenuation @ 900 MHz
[1]
40
30
Pout=-15dBm
IP3 (dBm)
20
10
Vdd=3V
Vdd=5V
0
Pout=-20dBm
-10
0
4
8
12
16
20
24
ATTENUATION STATE (dB)
28
32
[1] see application Circuit
[2] maximum gain state with digital attenuator set to minimum attenuation
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 apps@hittite.com
HMC707LP5 / 707LP5E
v04.0409
0.5 dB LSB 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, 700 - 1200 MHz
Option 2
[1]
: 6-Bit DAT + Amp2 only
Gain & Return Loss
[1] [2]
30
20
RESPONSE (dB)
10
0
-10
-20
S11
3V
5V
Output IP3 vs. Attenuation @ 900 MHz
[1]
44
Pout=0dBm
S21
40
36
IP3 (dBm)
32
28
24
20
Pout=-5dBm
Vdd=3V
Vdd=5V
Setup limit
S22
12
Variable gain amplifiers - digital - smt
-30
0.5
0.6
0.7
0.8
0.9
1
1.1 1.2
FREQUENCY (GHz)
1.3
1.4
1.5
0
4
8
12
16
20
24
ATTENUATION STATE (dB)
28
32
Serial Control Interface
the HmC707lp5(e) contains a 3-wire spi compatible digital interface (serin, ClK, le). it is activated when p/s
is kept high. the 6-bit serial word must be loaded msb first. the positive-edge sensitive ClK and le requires
clean transitions. standard logic families work well. if mechanical switches were used, sufficient debouncing should
be provided. When le is high, 6-bit data in the serial input register is transferred to the attenuator. When le is high
ClK is masked to prevent data transition during output loading.
When p/s is low, 3-wire spi interface inputs (serin, ClK, le) are disabled and serial input register is loaded
asynchronously with parallel digital inputs (d0-d5). When le is high, 6-bit parallel data is transferred to the attenuator.
for all modes of operations, attenuation state will stay constant while le is kept low.
[1] see application Circuit
[2] maximum gain state with digital attenuator set to minimum attenuation
12 - 5
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 apps@hittite.com
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