HMC602LP4 / 602LP4E
v01.0407
70 dB, LOGARITHMIC
DETECTOR / CONTROLLER, 1 - 8000 MHz
Typical Applications
Features
The HMC602LP4(E) is ideal for IF and RF applica-
tions in:
Wide Dynamic Range: up to 70 dB
High Accuracy: 1 dB with 60 dB Range Up To 6 GHz
Fast: 8ns Output Response Time
Supply Voltage: +5V
• Cellular/PCS/3G
• WiMAX, WiBro, WLAN, Fixed Wireless & Radar
• Power Monitoring & Control Circuitry
• Receiver Signal Strength Indication (RSSI)
• Automatic Gain & Power Control
Power-Down Mode
Excellent Stability over Temperature
Buffered Temperature Sensor Output
Compact 4x4mm Leadless SMT Package
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Functional Diagram
General Description
The HMC602LP4(E) Logarithmic Detector/Controller
converts RF signals at its input, to a proportional DC
voltage at its output. The HMC602LP4(E) employs
a successive compression topology which delivers
extremely high dynamic range and conversion accuracy
over a wide input frequency range. As the input power
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 buffered 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 -25mV/
dB and an intercept of 12 dBm (19 dBm for ƒ ≥ 5.8 GHz).
The HMC602LP4(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.
[1]
Electrical Specifications, TA = +25C, EN= 5V, Vcc1, Vcc2, Vcc3= +5V
Parameter
Typ.
Typ.
100
70
Typ.
900
72
Typ.
1900
71
Typ.
2200
72
Typ.
3600
70
Typ.
5800
66
Typ.
7000
62
Typ.
7500
59
Typ.
8000
57
Units
MHz
dB
Input Frequency
50
3 dB Dynamic Range
3 dB Dynamic Range Center
1 dB Dynamic Range
70
-30
-30
-30.5
63
-32.5
63
-33
-31
-25
-22
-22
-20.5
46
dBm
dB
61
61
62
57
60
55
50
Output Slope
-25.7
+13.2
12.3
-25.7
+13.2
11.2
-25.3
+13.4
11.4
-25.0
+13.0
11.6
-24.9
+12.4
12.5
-24.8
+14.2
14.7
-25.5
+21.3
16.9
-27.5
+20.2
24.6
-28.9
+19.2
27.7
-30.2
+18.5
33.0
mV/dB
dBm
mdB/°C
Output Intercept
Temperature Sensitivity @ -10 dBm Input [2]
[1] Detector mode measurements; LOGOUT (Pin 15) is shorted to VSET (Pin 16).
[2] Measured from T = -40C to T = +85C
A
A
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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