HMC909LP4E Datasheet, PDF (1/21 Pages) Hittite Microwave Corporation – RMS POWER DETECTOR SINGLE-ENDED, DC - 5.8 GHz

HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
11
Typical Applications
The HMC909LP4E is ideal for:
• Log –> Root-Mean-Square (RMS) Conversion
• Received Signal Strength Indication (RSSI)
• Transmitter Signal Strength Indication (TSSI)
• RF Power Amplifier Efficiency Control
• Receiver Automatic Gain Control
• Transmitter Power Control
Features
Broadband Single-Ended RF Input
±1 dB Detection Accuracy to 5.8 GHz
Input Dynamic Range: -51 dBm to -11 dBm
RF Signal Wave shape & Crest Factor Independent
Digitally Programmable Integration Bandwidth
+5V Operation from -40°C to +85°C
Excellent Temperature Stability
Power-Down Mode
24 Lead 4x4mm SMT Package: 16mm²
11 - 1
Functional Diagram
General Description
The HMC909LP4E Power Detector is designed for
RF power measurement, and control applications for
frequencies up to 5.8 GHz. The detector provides
an accurate RMS representation of any broadband,
single-ended RF/IF input signal. The output is a tem-
perature compensated monotonic, representation of
real signal power, measured with an input sensing
range of 40 dB.
The HMC909LP4E is ideally suited to those wide
bandwidth, wide dynamic range applications, requir-
ing repeatable measurement of real signal power,
especially where RF/IF wave shape and/or crest factor
change with time.
The integration bandwidth of the HMC909LP4E is
digitally programmable with the use of input pins
SCI1-4 with a range of more than 4 decade. This
allows the user to dynamically set the operation
bandwidth providing the capability of handling differ-
ent types of modulations on the same platform.
HMC909LP4E features an internal op-amp at output
stage, which provides for slope / intercept adjustments
and enables controller application.
Electrical Specifications, T_A = +25 °C, Vcc = 5V
Parameter
Typ.
Typ.
Typ.
Dynamic Range (±1dB Error) ^[1]
Input Frequency
Single Ended Input Configuration
100
900
1900
40
40
40
Deviation vs Temperature: (Over full temperature range -40 °C to 85 °C).
Deviation is measured from reference, which is the same WCDMA input at 25 °C.
[1] With WCDMA 4 Carrier (TMI1-64 DPCH)
Typ.
2200
39
Typ.
2700
38
Typ.
3500
37
Typ.
3900
36
1
Typ. Units
5800
24
MHz
dB
dB
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]