HMC612LP4 Datasheet, PDF (1/10 Pages) Hittite Microwave Corporation – 75 dB LOGARITHMIC DETECTOR / CONTROLLER, 50 Hz - 3000 MHz

HMC612LP4 / 612LP4E
v01.0108
75 dB LOGARITHMIC
DETECTOR / CONTROLLER, 50 Hz - 3000 MHz
7
7 - 60
Typical Applications
Features
The HMC612LP4(E) is ideal for IF and RF applica-
tions in:
• Cellular/PCS/3G
• WiMAX, WiBro, WLAN, Fixed Wireless & Radar
• Power Monitoring & Control Circuitry
• Receiver Signal Strength Indication (RSSI)
• Automatic Gain & Power Control
Functional Diagram
Wide Input Bandwidth: 50 Hz to 3 GHz
Wide Dynamic Range: Up to 74 dB
High Accuracy: ±1 dB with 60 dB Range Up to 0.9 GHz
Supply Voltage: +2.7V to +5.5V
Excellent Stability over Temperature
Power-Down Mode
Compact 4x4mm Leadless SMT Package
General Description
The HMC612LP4(E) Logarithmic Detector/Controller is
ideal for converting input signals with frequencies in the
50 Hz to 3 GHz range, to a proportional DC voltage at
its output. The HMC612LP4(E) employs a successive
compression technology which delivers extremely high
dynamic range and conversion accuracy over a wide
input frequency range. As the input signal is increased,
successive amplifiers move into saturation one by one
creating an accurate approximation of the logarithm
function. The output of a series of square law detectors
is summed, converted into voltage domain and buff-
ered to drive the LOGOUT output. For detection mode,
the LOGOUT pin is shorted to the VSET input and will
provide a nominal logarithmic slope of 19 mV/dB and an
intercept of -99 dBm. The HMC612LP4(E) can also be
used in the controller mode where an external voltage
is applied to the VSET pin, to create an AGC or APC
feedback loop.
Electrical Specifications, T_A = +25C^[1]
Parameter
Typ. Typ. Typ. Typ. Typ. Typ.
Input Frequency
0.00005 0.0001 0.001 0.01 0.1
1
±3 dB Dynamic Range
75
75
75
75
74
74
±3 dB Dynamic Range Center
-30
±3 dB Dynamic Range Center -45 -44.5 -45.5 -45 -45
±1 dB Dynamic Range
68
67
68
67
65
68
Output Slope
19.7 19.7 19.6 19.6 19.8 19.7
Output Intercept
-94.5
Output Intercept
-110 -110.2 -110.6 -110.6 -110.0
Temperature
Sensitivity @ -43 dBV Input ^{[2] -9.9}
-11.9 -11.3 -11.3 -11.3
Temperature
Sensitivity @ -30 dBm Input ^[2]
-12.5
[1] Detector mode measurements; LOGOUT (Pin 17) is shorted to VSET (Pin 18).
[2] Measured from T_A = -45C to T_A = +85C, Vdd1, Vdd2 = 5V
Typ.
10
74
-30
66
19.8
-93.9
-12.2
Typ.
100
74
-30
66
19.8
-93.8
-11.7
Typ.
900
72
-31
64
19.4
-94.8
-11.2
Typ.
1900
64
-33
55
19.4
-92.5
-11.7
Typ.
2500
60
-34
52
19.8
-91.3
-12.1
Typ.
3000
55
-34
45
20.8
-86.4
Units
MHz
dB
dBm
dBV
dB
mV/dB
dBm
dBV
mdBV/°C
-13.4 mdBm/°C
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com