Datasheet

MAX2015
0.1GHz to 3GHz, 75dB Logarithmic
Detector/Controller
_______________________________________________________________________________________ 7
RF PULSE RESPONSE
MAX2015 toc19
TIME (50ns/div)
RF INPUT VOLTAGE, OUTPUT VOLTAGE (V)
-0.5
0
0.5
1.0
1.5
2.0
2.5
-1.0
f
IN
= 100MHz
V
OUT
RFIN
(AC-COUPLED)
S11 MAGNITUDE
MAX2015 toc20
FREQUENCY (GHz)
MAGNITUDE (dB)
2.52.01.51.00.5
-22.5
-20.0
-17.5
-15.0
-12.5
-10.0
-25.0
0 3.0
V
CC
= 2.7V, 3.0V
V
CC
= 3.3V, 3.6V
S11 MAGNITUDE
MAX2015 toc21
FREQUENCY (GHz)
MAGNITUDE (dB)
2.52.01.51.00.5
-22.5
-20.0
-17.5
-15.0
-12.5
-10.0
-25.0
03.0
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
Typical Operating Characteristics (continued)
(MAX2015 typical application circuit (Figure 1), V
S
= V
CC
= 3.3V, P
IN
= -10dBm, f
IN
= 100MHz, R1 = 0Ω, R4 = 0Ω, R
L
= 10kΩ, V
PWDN
=
0V, T
A
= +25°C, unless otherwise noted.)
Pin Description
PIN NAME FUNCTION
1, 4 V
CC
Supply Voltage. Bypass with capacitors as specified in the application drawing. Place capacitors as
close to the pin as possible (see the Power-Supply Connections section).
2, 3
INHI, INLO
Differential RF Inputs
5 PWDN
Power-Down Input. Drive PWDN with a logic-high to power down the IC. PWDN must be connected to
GND for V
S
between 4.75V and 5.25V with R4 = 75Ω.
6 GND Ground. Connect to the PCB ground plane.
7 SET
Set-Point Input. To operate in detector mode, connect SET to OUT. To operate in controller mode,
connect a precision voltage source to control the power level of a power amplifier.
8 OUT
Detector Output. In detector mode, this output provides a voltage proportional to the log of the input
power. In controller mode, this output is connected to a power-control input on a power amplifier (PA).
—EP
Exposed Paddle (TDFN package only). Connect EP to GND using multiple vias, or the EP can also be left
unconnected.