HMC611LP4_09 Datasheet, PDF (1/10 Pages) Hittite Microwave Corporation – 60 dB, LOGARITHMIC DETECTOR / CONTROLLER, 1 - 10000 MHz

HMC611LP4 / 611LP4E
v04.0309
60 dB, LOGARITHMIC
DETECTOR / CONTROLLER, 1 - 10000 MHz
12
Typical Applications
The HMC611LP4(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
Features
Wide Dynamic Range: Up to 63 dB
High Accuracy: ±1 dB with 54 dB Range Up to 8 GHz
Supply Voltage: +5V
Excellent Stability over Temperature
Buffered Temperature Sensor Output
24 Lead 4x4mm SMT Package: 16mm2
Functional Diagram
General Description
The HMC611LP4(E) Logarithmic Detector/Controller
converts RF signals at its input, to a proportional DC
voltage at its output. The HMC611LP4(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 18 dBm (22 dBm for ƒ ≥ 5.8 GHz).
The HMC611LP4(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.
Input Frequency
1 - 3600
5800
±3 dB Dynamic Range
70
66
±3 dB Dynamic Range Center
-25
-23
±1 dB Dynamic Range
60
61
Output Intercept
18
25
Output Slope
-25
-24
Temperature Sensitivity @ -10 dBm Input ^[2]
7
5
[1] Detector mode measurements; LOGOUT (Pin 15) is shorted to VSET (Pin 16).
[2] Measured from T_A = -40°C to T_A = +85°C
Typ.
7000
62
-21
58
23
-26
8
Typ.
8000
59
-20
52
22
-28
20
Typ.
10000
50
-15
42
21
-32
28
Units
MHz
dB
dBm
dB
dBm
mV/dB
mdB/°C
12 - 48
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