HMC948LP3E Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – 54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz

v00.0910
HMC948LP3E
54 dB, LOGARITHMIC
DETECTOR, 1 - 23 GHz
11
Typical Applications
The HMC948LP3E is ideal for:
• Point-to-Point Microwave Radio
• VSAT
• Wideband Power Monitoring
• Receiver Signal Strength Indication (RSSI)
• Test & Measurement
Functional Diagram
Features
Wide Input Bandwidth: 1 to 23 GHz
Wide Dynamic Range: 54 dB up to 23 GHz
Single Positive Supply: +3.3V
Excellent Stability Over Temperature
Fast Rise / Fall Time: 5 / 7 ns
16 Lead 3x3 mm SMT Package: 9 mm²
General Description
The HMC948LP3E Logarithmic Detector converts
RF signals at its input, to a proportional DC voltage
at its output. The HMC948LP3E employs successive
compression topology which delivers high dynamic
range over a wide input frequency range. As the input
power is increased, successive amplifiers move into
saturation one by one creating an approximation of
the logarithm function. The output of a series of square
law detectors is summed, converted into the voltage
domain and buffered to drive the LOG OUT output.
The HMC948LP3E provides a nominal logarithmic
slope of +14.2 mV/dB and an intercept of -111 dBm at
23 GHz. Ideal as a log detector for high volume micro-
wave radio and VSAT applications, the HMC948LP3E
is housed in a compact 3x3 mm RoHS compliant SMT
plastic package.
Electrical Specifications, T_A = +25 C Vcc = +3.3V
Parameter
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Units
Input Frequency
1
5
10
14
18
20
23
GHz
±3 dB Dynamic Range
53
54
54
55
55
55
55
dB
±3 dB Dynamic Range Center
-23
-25
-24
-22
-20
-15
-15
dBm
Log Error Over Temperature (-40 to +85)
±1
±1
±1
±1.5
±1.5
±1.5
±1.5
dB
Output Intercept
-104
-107
-109
-112
-113
-108
-111
dBm
Output Slope
16.8
16.7
15.9
15.2
14.6
14.4
14.2
mV/dB
11 - 1
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: [phone] Fax: [phone] Order On-line at www.hittite.com
Application Support: Phone: [phone] or [e-mail]