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Power Detector. LMH2100 Datasheet

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Power Detector. LMH2100 Datasheet






LMH2100 Detector. Datasheet pdf. Equivalent




LMH2100 Detector. Datasheet pdf. Equivalent





Part

LMH2100

Description

Logarithmic Power Detector

Manufacture

Texas Instruments

Datasheet
Download LMH2100 Datasheet


Texas Instruments LMH2100

LMH2100; Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMH2100 SNWS020C – NOVEMBE R 2007 – REVISED OCTOBER 2015 LMH2100 50-MHz to 4-GHz 40-dB Logarithmic Powe r Detector for CDMA and WCDMA 1 Featur es •1 Supply Voltage: 2.7 V to 3.3 V • Output Voltage: 0.3 V to 2 V • 40 -dB Linear in dB Power Detection Range • Shutdown • Multi-Band Oper.


Texas Instruments LMH2100

ation from 50 MHz to 4 GHz • 0.5-dB Ac curate Temperature Compensation • Ext ernal Configurable Output Filter Bandwi dth • 0.4-mm Pitch DSBGA Package 2 Ap plications • UMTS/CDMA/WCDMA RF Power Control • GSM/GPRS RF Power Control • PA Modules • IEEE 802.11b, g (WLA N) 3 Description The LMH2100 is a 40-d B RF power detector intended for use in CDMA and WCDMA applications. Th.


Texas Instruments LMH2100

e device has an RF frequency range from 50 MHz to 4 GHz. It provides an accurat e temperature and supply compensated ou tput voltage that relates linearly to t he RF input power in dBm. The circuit o perates with a single supply from 2.7 V to 3.3 V. The LMH2100 has an RF power detection range from −45 dBm to −5 dBm, and is ideally suited for direct u se in combination with.



Part

LMH2100

Description

Logarithmic Power Detector

Manufacture

Texas Instruments

Datasheet
Download LMH2100 Datasheet




 LMH2100
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
LMH2100
SNWS020C – NOVEMBER 2007 – REVISED OCTOBER 2015
LMH2100 50-MHz to 4-GHz 40-dB Logarithmic Power Detector for CDMA and WCDMA
1 Features
1 Supply Voltage: 2.7 V to 3.3 V
• Output Voltage: 0.3 V to 2 V
• 40-dB Linear in dB Power Detection Range
• Shutdown
• Multi-Band Operation from 50 MHz to 4 GHz
• 0.5-dB Accurate Temperature Compensation
• External Configurable Output Filter Bandwidth
• 0.4-mm Pitch DSBGA Package
2 Applications
• UMTS/CDMA/WCDMA RF Power Control
• GSM/GPRS RF Power Control
• PA Modules
• IEEE 802.11b, g (WLAN)
3 Description
The LMH2100 is a 40-dB RF power detector intended
for use in CDMA and WCDMA applications. The
device has an RF frequency range from 50 MHz to
4 GHz. It provides an accurate temperature and
supply compensated output voltage that relates
linearly to the RF input power in dBm. The circuit
operates with a single supply from 2.7 V to 3.3 V.
The LMH2100 has an RF power detection range from
45 dBm to 5 dBm, and is ideally suited for direct
use in combination with a 30-dB directional coupler.
Additional low-pass filtering of the output signal can
be realized by means of an external resistor and
capacitor. Typical Application: Output RC Low Pass
Filter shows a detector with an additional output low
pass filter. The filter frequency is set with RS and CS.
Typical Application: Feedback (R)C Low Pass Filter
shows a detector with an additional feedback low
pass filter. Resistor RP is optional and will lower the
Trans impedance gain (RTRANS). The filter frequency
is set with CP//CTRANS and RP//RTRANS.
The device is active for Enable = High; otherwise it is
in a low power-consumption shutdown mode. To save
power and prevent discharge of an external filter
capacitance, the output (OUT) is high-impedance
during shutdown.
Typical Application: Output RC Low Pass Filter
RF
PA
COUPLER
ANTENNA
50 :
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (MAX)
LMH2100
DSBGA (6)
1.274 mm × 0.874 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application: Feedback (R)C Low Pass
Filter
RF
PA
COUPLER
ANTENNA
VDD
RFIN
2
1
OUT RS
6
LMH2100
EN 4 3 5 REF
GND
+
CS ADC
-
50 :
VDD
RFIN
21
OUT
6
LMH2100
RP
EN 4 3 5 REF
GND
+
CP
ADC
-
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.





 LMH2100
LMH2100
SNWS020C – NOVEMBER 2007 – REVISED OCTOBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Ratings ........................... 4
6.4 Thermal Information .................................................. 5
6.5 2.7-V DC and AC Electrical Characteristics.............. 5
6.6 Timing Requirements .............................................. 11
6.7 Typical Characteristics ............................................ 11
7 Detailed Description ............................................ 23
7.1 Overview ................................................................. 23
7.2 Functional Block Diagram ....................................... 23
7.3 Feature Description................................................. 23
7.4 Device Functional Modes........................................ 29
8 Application and Implementation ........................ 30
8.1 Application Information............................................ 30
8.2 Typical Applications ............................................... 33
9 Power Supply Recommendations...................... 39
10 Layout................................................................... 40
10.1 Layout Guidelines ................................................ 40
10.2 Layout Example .................................................... 42
11 Device and Documentation Support ................. 43
11.1 Community Resources.......................................... 43
11.2 Trademarks ........................................................... 43
11.3 Electrostatic Discharge Caution ............................ 43
11.4 Glossary ................................................................ 43
12 Mechanical, Packaging, and Orderable
Information ........................................................... 43
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (March 2013) to Revision C
Page
• Added Device Information and Pin Configuration and Functions sections, ESD Ratings table, Feature Description,
Device Functional Modes, Application and Implementation, Power Supply Recommendations, Layout, Device and
Documentation Support, and Mechanical, Packaging, and Orderable Information sections. ................................................ 1
Changes from Revision A (March 2013) to Revision B
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 42
2
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Product Folder Links: LMH2100
Copyright © 2007–2015, Texas Instruments Incorporated





 LMH2100
www.ti.com
5 Pin Configuration and Functions
LMH2100
SNWS020C – NOVEMBER 2007 – REVISED OCTOBER 2015
YFQ Package
6-Pin DSBGA
Top View
A1
VDD
A2
OUT
B1
RFIN
B2
REF
C1
C2
GND
EN
PIN
NUMBER
NAME
A1
VDD
A2
OUT
B1
RFIN
B2
REF
C1
GND
C2
EN
Pin Functions
I/O
DESCRIPTION
Power Supply
Output
Analog Input
Reference Output
GND
Logic Input
Positive supply voltage
Ground referenced detector output voltage (linear in dB)
RF input signal to the detector, internally terminated with 50 .
Reference output, for differential output measurement (without pedestal). Connected
to inverting input of output amplifier.
Power ground
The device is enabled for EN = High, and brought to a low-power shutdown mode for
EN = Low.
Copyright © 2007–2015, Texas Instruments Incorporated
Product Folder Links: LMH2100
Submit Documentation Feedback
3



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