Datasheet

MAX2014
50MHz to 1000MHz, 75dB Logarithmic
Detector/Controller
8
Pin Description
PIN NAME DESCRIPTION
1, 4 V
CC
Supply Voltage. Bypass with capacitors as specified in the typical application circuits. 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 printed circuit (PC) board 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 Pad (TDFN Package Only). Connect EP to GND using multiple vias, or the EP can also be left
unconnected.
OUTPUT VOLTAGE vs. FREQUENCY
FREQUENCY INPUT (MHz)
OUTPUT VOLTAGE (V)
MAX2014 toc23
0 200 400 600 800 1000
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
P
IN
= -60dBm
P
IN
= -30dBm
P
IN
= -45dBm
P
IN
= -10dBm
V
CC
= 2.7V, 3.3V, 3.6V
V
CC
= 2.7V
V
CC
= 3.6V
RF PULSE RESPONSE
TIME (50ns/div)
RF INPUT VOLTAGE, OUTPUT VOLTAGE (V)
MAX2014 toc24
-1.0
-0.5
0
0.5
1.0
1.5
2.0
2.5
V
OUT
f
IN
= 100MHz
RFIN
(AC-COUPLED)
S11 MAGNITUDE
FREQUENCY (MHz)
MAGNITUDE (dB)
MAX2014 toc25
0 200 400 600 800 1000
-25.0
-22.5
-20.0
-17.5
-15.0
-12.5
-10.0
V
CC
= 2.7V, 3.0V, 3.3V, 3.6V
S11 MAGNITUDE
FREQUENCY (MHz)
MAGNITUDE (dB)
MAX2014 toc26
0 200 400 600 800 1000
-25.0
-22.5
-20.0
-17.5
-15.0
-12.5
-10.0
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
T
A
= -20°C
Typical Operating Characteristics (continued)
( 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.)