HMC600LP4_09 Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – 75 dB LOGARITHMIC DETECTOR / CONTROLLER 50 - 4000 MHz

HMC600LP4 / 600LP4E
v02.0909
75 dB LOGARITHMIC
DETECTOR / CONTROLLER 50 - 4000 MHz
12
12 - 2
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
Functional Diagram
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
The HMC600LP4(E) Logarithmic Detector/Controller
converts RF signals at its input, to a proportional DC
voltage at its output. The HMC600LP4(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 19mV/dB
and an intercept of -95 dBm. The HMC600LP4(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, PWD = 0V, Vcc1, Vcc2 = +3.3V ^[1]
Parameter
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Input Frequency
50
100
500
900
1900 2500
±3 dB Dynamic Range
74
74
74
74
70
66
±3 dB Dynamic Range Center
-30
-30
-30
-30.5 -31.0 -31.0
±1 dB Dynamic Range
64
64
64
65
62
59
Output Slope
19.6
19.5
19.4
19.2
19.1
19.5
Output Intercept
Temperature Sensitivity @ -10 dBm Input ^[2]
-96
-96
-96
-96
-95
-93
-2.7
-2.8
-3.6
-4.8
-6.9
-7.4
[1] Detector mode measurements; LOGOUT (Pin 17) is shorted to VSET (Pin 16).
[2] Measured from T_A = -40C to T_A = +85C
Parameter
RF Input (INP)
Return Loss
LOGOUT Interface
Conditions
Min.
F = 50 - 4000 MHz, Zo = 50Ω, See plot
Open Loop Impedance
Current Drive (Source)
Typ.
3500
51
-27
44
21.0
-79
-8.3
Typ.
10
16
0.4
Typ.
4000
48
-23.5
41
22.3
-72
-12.9
Units
MHz
dB
dBm
dB
mV/dB
dBm
mdB/°C
Max.
Units
dB
kΩ
mA
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