HMC681LP5 Datasheet, PDF (1/10 Pages) Hittite Microwave Corporation – 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz

HMC681LP5 / 681LP5E
v03.1010
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN
AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz
Typical Applications
The HMC681LP5(E) is ideal for:
• IF & RF Applications
• Cellular/3G Infrastructure
• WiBro / WiMAX / 4G
• Microwave Radio & VSAT
• Test Equipment and Sensors
Functional Diagram
12
Features
+13.5 dB to +45 dB Gain Control in 0.5 dB Steps
High Output IP3: +36 dBm
±0.25 dB Typical Gain Step Error
Single +5V Supply
32 Lead 5x5mm SMT Package: 25mm²
General Description
The HMC681LP5(E) is a digitally controlled variable
gain amplifier which operates from DC to 1 GHz,
and can be programmed to provide anywhere from
13.5 dB, to 45 dB of gain, in 0.5 dB steps. The
HMC681LP5(E) delivers noise figure of 2.8 dB in its
maximum gain state, with output IP3 of up to +36
dBm in any state. This serially controlled digital VGA
incorporates off chip AC ground capacitors for near
DC operation, making it suitable for a wide variety of
RF and IF applications. The HMC681LP5(E) is housed
in a RoHS compliant 5x5 mm QFN leadless package,
and provides the user with a highly integrated solution.
This functionality is also available with parallel control
as the HMC626LP5(E).
12 - 1
Electrical Specifications, T_A = +25° C, Vdd = Vs= P/S= +5V
Parameter
Min.
Typ.
Max.
50 - 350
Min.
Typ.
Max.
350 - 1000
Gain (Maximum Gain State)
40
45
30
40
Gain Control Range
31.5
31.5
Input Return Loss
25
30
Output Return Loss
20
17
Gain Setting Accuracy:
(Referenced to Maximum Gain State)
All Gain States
± (0.15 + 3% of Relative Gain Setting) Max. ± (0.15 + 3% of Relative Gain Setting) Max.
Output Power for 1 dB Compression
20
19
Output Third Order Intercept Point
(Two-Tone Output Power= 5 dBm Each Tone)
38
36
Noise Figure
2.7
2.8
Switching Characteristics
tRISE, tFALL (10/90% RF)
60
60
tON, tOFF (50% CTL to 10/90% RF)
120
120
Total Supply Current
176
225
176
225
Units
MHz
dB
dB
dB
dB
dB
dBm
dBm
dB
ns
ns
mA
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: [phone] Fax: [phone] Order On-line at www.hittite.com
Application Support: Phone: [phone] or [e-mail]