HMC600LP4
/
600LP4E
v01.0606
75 dB LOGARITHMIC
DETECTOR / CONTROLLER 50 - 4000 MHz
Typical Applications
The HMC600LP4 / HMC600LP4E is ideal for IF and
RF applications in:
• Cellular/PCS/3G
• WiMAX, WiBro & Fixed Wireless
• Power Monitoring & Control Circuitry
• Receiver Signal Strength Indication (RSSI)
• Automatic Gain & Power Control
Features
Wide Dynamic Range: up to 75 dB
Flexible Supply Voltage: +2.7V to +5.5V
Power-Down Mode
Excellent Stability over Temperature
Compact 4x4mm Leadless SMT Package
General Description
Functional Diagram
10
POWER DETECTORS - SMT
The HMC600LP4 & HMC600LP4E Logarithmic
Detector/Controller convert RF signals at its input, to a
proportional DC voltage at its output. The HMC600LP4
& HMC600LP4E employ 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 19mV/dB and an intercept of -95
dBm. The HMC600LP4 & HMC600LP4E 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, PWD = 0V, Vcc1, Vcc2 = +3.3V
[1]
Parameter
Input Frequency
±3 dB Dynamic Range
±3 dB Dynamic Range Center
±1 dB Dynamic Range
Output Slope
Output Intercept
Temperature Sensitivity @ -10 dBm Input
[2]
Typ.
50
74
-30
64
19.6
-96
-2.7
Typ.
100
74
-30
64
19.5
-96
-2.8
Typ.
500
74
-30
64
19.4
-96
-3.6
Typ.
900
74
-30.5
65
19.2
-96
-4.8
Typ.
1900
70
-31.0
62
19.1
-95
-6.9
Typ.
2500
66
-31.0
59
19.5
-93
-7.4
Typ.
3500
51
-27
44
21.0
-79
-8.3
Typ.
4000
48
-23.5
41
22.3
-72
-12.9
Units
MHz
dB
dBm
dB
mV/dB
dBm
mdB/°C
[1] Detector mode measurements; LOGOUT (Pin 17) is shorted to VSET (Pin 16).
[2] Measured from T
A
= -40C to T
A
= +85C
10 - 2
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
HITTITE [ HITTITE MICROWAVE CORPORATION ]
