HMC948LP3E
v00.0910
54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz
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
Typical Applications
the HMc948LP3e is ideal for: • Point-to-Point Microwave radio • VsAt • wideband Power Monitoring • receiver signal strength Indication (rssI) • test & Measurement
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Functional Diagram 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 microwave radio and VsAt applications, the HMc948LP3e is housed in a compact 3x3 mm roHs compliant sMt plastic package.
Power Detectors - sMt
Electrical Specifications, TA = +25 C Vcc = +3.3V
Parameter Input Frequency ±3 dB Dynamic range ±3 dB Dynamic range center Log error over temperature (-40 to +85) output Intercept output slope typ. 1 53 -23 ±1 -104 16.8 typ. 5 54 -25 ±1 -107 16.7 typ. 10 54 -24 ±1 -109 15.9 typ. 14 55 -22 ±1.5 -112 15.2 typ. 18 55 -20 ±1.5 -113 14.6 typ. 20 55 -15 ±1.5 -108 14.4 typ. 23 55 -15 ±1.5 -111 14.2 Units GHz dB dBm dB dBm mV/dB
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F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC948LP3E
v00.0910
54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz
Electrical Specifications, (continued)
Parameter LOGOUT Interface output Voltage range output rise time [1] / Fall time [2] Power Supply (Vcc) operating Voltage range supply current in Normal Mode [1] 0 dBm Input Pulsed; measured from 10% to 90% [2] 0 dBm Input Pulsed; measured from 90% to 10% 3.15 3.3 91 3.45 V mA f = 10 GHz 0.9 5/7 1.8 V ns conditions Min. typ. Max. Units
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LOG OUT & Error vs. Input Power, Fin = 5 GHz
3 2
Ideal Log Out +25 C Log Out +85 C Log Out -40 C
LOG OUT & Error vs. Input Power, Fin = 1 GHz
2
Ideal Log Out +25 C Log Out +85 C Log Out -40 C
3 2 1 ERROR (dB) 0
2 1 ERROR (dB) 0 1.5
LOG OUT (V)
1
ERR +25 C ERR +85 C ERR -40 C
-1 -2 -3 -50 -40 -30 -20 -10 0 10 INPUT POWER (dBm)
LOG OUT (V)
1.5
1
ERR +25 C ERR +85 C ERR -40 C
-1 -2 -3 -50 -40 -30 -20 -10 0 10 INPUT POWER (dBm)
0.5 -60
0.5 -60
LOG OUT & Error vs. Input Power, Fin = 10 GHz
2
Ideal Log Out +25 C Log Out +85 C Log Out -40 C
LOG OUT & Error vs. Input Power, Fin = 14 GHz
3 2 1 ERROR (dB) 0 1.5 2
Ideal Log Out +25 C Log Out +85 C Log Out -40 C
3 2 1 ERROR (dB) 0
LOG OUT (V)
1
ERR +25 C ERR +85 C ERR -40 C
-1 -2 -3 -50 -40 -30 -20 -10 0 10 INPUT POWER (dBm)
LOG OUT (V)
1.5
1
ERR +25 C ERR +85 C ERR -40 C
-1 -2 -3 -50 -40 -30 -20 -10 0 10 INPUT POWER (dBm)
0.5 -60
0.5 -60
Unless otherwise noted: Vcc = +3.3V, TA = +25 °C
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
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Power Detectors - sMt
HMC948LP3E
v00.0910
54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz
LOG OUT & Error vs. Input Power, Fin = 20 GHz
3 2
Ideal Log Out +25 C Log Out +85 C Log Out -40 C
LOG OUT & Error vs. Input Power, Fin = 18 GHz
2
Ideal Log Out +25 C Log Out +85 C Log Out -40 C
3 2 1 ERROR (dB) 0
2 1 ERROR (dB) 0 1.5
LOG OUT (V)
1
ERR +25 C ERR +85 C ERR -40 C
-1 -2 -3 -50 -40 -30 -20 -10 0 10 INPUT POWER (dBm)
LOG OUT (V)
1.5
1
ERR +25 C ERR +85 C ERR -40 C
-1 -2 -3 -50 -40 -30 -20 -10 0 10 INPUT POWER (dBm)
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Power Detectors - sMt
0.5 -60
0.5 -60
LOG OUT & Error vs. Input Power, Fin = 23 GHz
2
Ideal Log Out +25 C Log Out +85 C Log Out -40 C
LOG OUT vs. Frequency
3 2 1 ERROR (dB) 0 2 1.75 LOG OUT (V) 1.5
1 GHz 5 GHz 10 GHz 14 GHz 18 GHz 20 GHz 23 GHz
LOG OUT (V)
1.5
1.25 1
1
ERR +25 C ERR +85 C ERR -40 C
-1 -2 -3 -50 -40 -30 -20 -10 0 10 INPUT POWER (dBm)
0.75 0.5 -60
0.5 -60
-50
-40
-30
-20
-10
0
10
INPUT POWER (dBm)
Unless otherwise noted: Vcc = +3.3V, TA = +25 °C
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F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC948LP3E
v00.0910
54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz
Rise Time for Various Frequencies @ 0 dBm
1.8
2 GHz 10 GHz 18 GHz
Fall Time for Various Frequencies @ 0 dBm
1.8
2 GHz 10 GHz 18 GHz
1.6 LOG OUT (V)
1.6 LOG OUT (V)
1.4
1.4
1.2
1.2
1
1
0.8
0
20
40
60 TIME (ns)
80
100
0.8
0
20
40
60 TIME (ns)
80
100
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Power Detectors - sMt
11 - 4
Input Return Loss
0
RETURN LOSS (dB)
-5
-10
-15
+25 C +85 C -40 C
-20
0
5
10
15
20
25
30
FREQUENCY (GHz)
Unless otherwise noted: Vcc = +3.3V, TA = +25 °C
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC948LP3E
v00.0910
54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz
Absolute Maximum Ratings
Vcc rF Input Power Junction temperature continuous Pdiss (t = 85°c) (Derate 11.62 mw/°c above 85°c) thermal resistance (rth) (junction to ground paddle) storage temperature operating temperature esD sensitivity (HBM) +3.6V +15 dBm 125 °c 0.46w 86.09 °c/w -65 to +150 °c -40 to +85 °c class 1A
eLectrostAtIc seNsItIVe DeVIce oBserVe HANDLING PrecAUtIoNs
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Power Detectors - sMt
Outline Drawing
Notes: 1. LeADFrAMe MAterIAL: coPPer ALLoY 2. DIMeNsIoNs Are IN INcHes [MILLIMeters]. 3. LeAD sPAcING toLerANce Is NoN-cUMULAtIVe 4. PAD BUrr LeNGtH sHALL Be 0.15mm MAXIMUM. PAD BUrr HeIGHt sHALL Be 0.05mm MAXIMUM. 5. PAcKAGe wArP sHALL Not eXceeD 0.05mm. 6. ALL GroUND LeADs AND GroUND PADDLe MUst Be soLDereD to PcB rF GroUND. 7. reFer to HMc APPLIcAtIoN Note For sUGGesteD PcB LAND PAtterN.
Package Information
Part Number HMc948LP3e Package Body Material roHs-compliant Low stress Injection Molded Plastic Lead Finish 100% matte sn MsL rating MsL1
[2]
Package Marking [1] 948 XXX
[1] 4-Digit lot number XXXX [2] Max peak reflow temperature of 260 °c
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F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC948LP3E
v00.0910
54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz
Pin Descriptions
Pin Number 1, 4, 5, 8, 9, 10, 12 Function N/c Description No connection necessary. these pins may be connected to rF/Dc ground without affecting performance. Interface schematic
2
rFIN
rF input pin.
3, 6, 7
GND
these pins and the exposed package bottom must be connected to a high quality rF/Dc ground.
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Power Detectors - sMt
11 - 6
11
LoG oUt
Log out. these pins should be connected to each other through a 0 ohm resistor. see application circuit.
13 - 16
Vcc
Bias supply. connect supply voltage to these pins with appropriate filtering.
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC948LP3E
v00.0910
54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz
Application & Evaluation PCB Schematic
11
Power Detectors - sMt
11 - 7
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC948LP3E
v00.0910
54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz
Evaluation PCB
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Power Detectors - sMt
11 - 8
List of Materials for Evaluation PCB 132032 [1]
Item J1 J2 J3, J4 c1 c2, c3 c4 U1 PcB [2] Description K-type connector sMA connector Dc Pin 5 pF capacitor, 0402 Pkg. 10 nF capacitor, 0402 Pkg. 4.7 µF tantalum capacitor, cAse A Pkg. HMc948LP3e Log Detector 600-00008-00 evaluation PcB
the circuit board used in the application should use rF circuit design techniques. signal lines should have 50 ohm impedance while the pckage ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. the evaluation circuit board shown is available from Hittite upon request.
[1] reference this number when ordering complete evaluation PcB [2] circuit Board Material: rogers 4350 or Arlon 25 Fr
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com