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LT5581 Datasheet(PDF) 2 Page - Linear Technology

Part # LT5581
Description  6GHz RMS Power Detector with 40dB Dynamic Range
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT5581 Datasheet(HTML) 2 Page - Linear Technology

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LT5581
2
5581fa
The
l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C, VCC = 3.3V, EN = 3.3V, unless otherwise noted (Note 2). Test circuit is shown in Figure 1.
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Supply Voltage .........................................................5.5V
Maximum Input Signal Power—Average .............15dBm
Maximum Input Signal Power—Peak (Note 7) ....25dBm
DC Voltage at RFIN ....................................... –0.3V to 2V
VOUT Voltage ....................................–0.3V to VCC + 0.3V
Maximum Junction Temperature, TJMAX ............... 150°C
Operating Temperature Range.................. –40°C to 85°C
Storage Temperature Range................... –65°C to 150°C
CAUTION: This part is sensitive to electrostatic discharge. It
is very important that proper ESD precautions be observed
when handling the LT5581.
(Note 1)
TOP VIEW
9
DDB PACKAGE
8-LEAD (3mm
2mm) PLASTIC DFN
5
6
7
8
4
3
2
1
VCC
EN
VOUT
GND
CSQ
RFIN
GND
GND
TJMAX = 150°C, θJA = 76°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT5581IDDB#PBF
LT5581IDDB#TRPBF
LDKM
8-Lead (3mm × 2mm) Plastic DFN
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
AC Input
Input Frequency Range (Note 4)
10-6000
MHz
Input Impedance
205||1.6
Ω||pF
fRF = 450MHz
RF Input Power Range
Externally Matched to 50Ω Source
–34 to 6
dBm
Linear Dynamic Range, CW (Note 3)
±1dB Linearity Error
40
dB
Linear Dynamic Range, CDMA (Note 3)
±1dB Linearity Error; CDMA 4-Carrier
40
dB
Output Slope
31
mV/dB
Logarithmic Intercept (Note 5)
–42
dBm
Output Variation vs Temperature
Normalized to Output at 25˚C, –40°C < TA < 85°C;
PIN = –34 to +6dBm
±1
dB
Output Variation vs Temperature
Normalized to Output at 25°C, –40°C < TA < 85°C;
PIN = –27 to –10dBm
±0.5
dB
Deviation from CW Response;
PIN = –34dBm to 0dBm
TETRA π/4 DQPSK
CDMA 4-Carrier 64-Channel Fwd 1.23Mcps
±0.1
±0.5
dB
dB


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