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LTC5505-1ES5#TRMPBF

P1-P3P4-P6P7-P8
LTC5505-1/LTC5505-2
1
5505f
■
Multimode Mobile Phone Products
■
PCS Devices
■
Wireless Data Modems
■
Wireless and Cable Infrastructure
■
RF Power Alarm
■
Envelope Detector
■
Internal Schottky Diode RF Detector with Two Input
Power Ranges:
LTC5505-1, –28dBm to 18dBm
LTC5505-2, –32dBm to 12dBm
■
Wide Input Frequency Range: 300MHz to 3GHz
(LTC5505-1); 300MHz to 3.5GHz (LTC5505-2)
■
Temperature Compensated
■
Buffered Detector Output
■
Wide V
CC
Range of 2.7V to 6V
■
Low Operating Current: 0.5mA
■
Low Shutdown Current: <2µA
■
Low Profile (1mm) ThinSOT
TM
Package
RF Power Detector
with Buffered Output and >40dB
Dynamic Range
The LTC
®
5505-X is an RF power detector for RF applica-
tions operating in the 300MHz to 3.5GHz range. A tem-
perature compensated Schottky diode peak detector and
buffer amplifier are combined in a small 5-pin ThinSOT
package. The supply voltage range is optimized for opera-
tion from a single lithium-ion cell or 3xNiMH.
The RF input voltage is peak detected using an on-chip
Schottky diode. The detected voltage is buffered and
supplied to the V
OUT
pin. A power saving shutdown mode
reduces supply current to less than 2µA.
The LTC5505-1 operates with input power levels from
–28dBm to 18dBm. The LTC5505-2 operates with input
power levels from –32dBm to 12dBm.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Dual Band Mobile Phone Tx Power Control
ThinSOT is a trademark of Linear Technology Corporation
APPLICATIO S
U
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
LTC5505-X
1
2
3
5
4
MOBILE PHONE
DSP
C2
0.1µF
Li-Ion
V
CC
V
OUT
RF
IN
GND
SHDN
RF
DISABLE ENABLE
V
PC
Tx PA MODULE
CELL BAND
PCS BAND
BSE
5505 TA01
DIPLEXER
R1
100Ω
C1
0.3pF
LTC5505-1/LTC5505-2
2
5505f
V
CC
, V
OUT
to GND .................................... –0.3V to 6.5V
RF Voltage
LTC5505-1 ................................... (V
CC
– 2.6V) to 7V
LTC5505-2 ................................... (V
CC
– 1.4V) to 7V
SHDN Voltage to GND ................ –0.3V to (V
CC
+ 0.3V)
I
VOUT
...................................................................... 5mA
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Maximum Junction Temperature ......................... 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
ORDER PART
NUMBER
S5 PART
MARKING
T
JMAX
= 125°C, θ
JA
= 250°C/W
LTXV
LTRW
LTC5505-1ES5
LTC5505-2ES5
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Note 1)
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.6V, SHDN = V
CC
= HI, SHDN = 0V = LO, RF Input Signal is Off,
unless otherwise noted.
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Operating Voltage ● 2.7 6 V
I
VCC
Shutdown Current SHDN = LO ● 2 µA
I
VCC
Operating Current SHDN = HI, I
VOUT
= 0mA ● 0.5 0.75 mA
V
OUT
V
OL
(No RF Input) R
LOAD
= 2k, SHDN = HI, Enabled 170 260 350 mV
SHDN = LOW, Disabled 1 mV
V
OUT
Output Current V
OUT
= 1.75V, V
CC
= 2.7V, ∆V
OUT
= 10mV ● 12 mA
V
OUT
Enable Time SHDN = HI, C
LOAD
= 33pF, R
LOAD
= 2k ● 820 µs
V
OUT
Bandwidth C
LOAD
= 33pF, R
LOAD
= 2k (Note 4) 4 MHz
V
OUT
Load Capacitance (Note 7) ● 33 pF
V
OUT
Slew Rate V
RFIN
= 2V Step, C
LOAD
= 33pF, R
LOAD
= 2k (Note 3) 10 V/µs
V
OUT
Noise V
CC
= 3V, Noise BW = 1.5MHz, 50Ω RF Input Termination 1.4 mV
P-P
SHDN Voltage, Chip Disabled V
CC
= 2.7V to 6V ● 0.35 V
SHDN Voltage, Chip Enabled V
CC
= 2.7V to 6V ● 1.4 V
SHDN Input Current SHDN = 3.6V ● 24 40 µA
Consult LTC Marketing for parts specified with wider operating temperature ranges.
5 V
CC
4 V
OUT
RF
IN
1
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC SOT-23
GND 2
SHDN 3
LTC5505-1/LTC5505-2
3
5505f
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Specifications over the –40°C to 85°C operating temperature
range are assured by design, characterization and correlation with
statistical process controls.
Note 3: The rise time at V
OUT
is measured between 0.5V and 1.5V.
Note 4: Bandwidth is calculated using the 10% to 90% rise time equation:
BW = 0.35/rise time.
Note 5: RF performance is tested at:
1800MHz, 14dBm, –14dBm (LTC5505-1)
1800MHz, 12dBm, –14dBm (LTC5505-2)
Note 6: For input RF power levels >16dBm, V
CC
minimum is 3V and an RF
input series resistor of 20Ω is required to limit the input current.
Note 7: Guaranteed by design.
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.6V, SHDN = V
CC
= HI, SHDN = 0V = LO, RF Input Signal is Off,
unless otherwise noted.
PARAMETER CONDITIONS MIN TYP MAX UNITS
RF
IN
Input Frequency Range (LTC5505-1) 300 to 3000 MHz
(LTC5505-2) 300 to 3500 MHz
RF
IN
Input Power Range (LTC5505-1) RF Frequency = 900MHz (Note 5, 6, 7) V
CC
= 2.7V to 6V –28 to 18 dBm
RF Frequency = 1800MHz (Note 5, 6, 7)V
CC
= 2.7V to 6V –26 to 18 dBm
RF Frequency = 2400MHz (Note 5, 7)V
CC
= 2.7V to 6V –24 to 16 dBm
RF Frequency = 2700MHz (Note 5, 7)V
CC
= 2.7V to 6V –22 to 16 dBm
RF
IN
Input Power Range (LTC5505-2) RF Frequency = 900MHz (Note 5) –32 to 12 dBm
RF Frequency = 1800MHz (Note 5) –32 to 12 dBm
RF Frequency = 2400MHz (Note 5) –32 to 12 dBm
RF Frequency = 2700MHz (Note 5) –30 to 12 dBm
RF
IN
AC Input Resistance (LTC5505-1) F = 850MHz 165 Ω
F = 1850MHz 20 Ω
RF
IN
Input Shunt Capacitance (LTC5505-1) 2pF
RF
IN
AC Input Resistance (LTC5505-2) F = 850MHz 165 Ω
F = 1850MHz 59 Ω
RF
IN
Input Shunt Capacitance (LTC5505-2) 1.3 pF
P1-P3P4-P6P7-P8

LTC5505-1ES5#TRMPBF

Mfr. #:
Buy LTC5505-1ES5#TRMPBF
Manufacturer:
Analog Devices Inc.
Description:
RF Detector RF Pwr Detector w/ Bufed Out & >40dB Dyn
Lifecycle:
New from this manufacturer.
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