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MAX9933EUA+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
General Description
The MAX9930–MAX9933 low-cost, low-power logarith-
mic amplifiers are designed to control RF power ampli-
fiers (PA) and transimpedance amplifiers (TIA), and to
detect RF power levels. These devices are designed to
operate in the 2MHz to 1.6GHz frequency range. A typi-
cal dynamic range of 45dB makes this family of logarith-
mic amplifiers useful in a variety of wireless and GPON
fiber video applications such as transmitter power mea-
surement, and RSSI for terminal devices. Logarithmic
amplifiers provide much wider measurement range and
superior accuracy to controllers based on diode detec-
tors. Excellent temperature stability is achieved over the
full operating range of -40°C to +85°C.
The choice of three different input voltage ranges elimi-
nates the need for external attenuators, thus simplifying
PA control-loop design. The logarithmic amplifier is a
voltage-measuring device with a typical signal range of
-58dBV to -13dBV for the MAX9930/MAX9933, -48dBV
to -3dBV for the MAX9931, and -43dBV to +2dBV for
the MAX9932.
The MAX9930–MAX9933 require an external coupling
capacitor in series with the RF input port. These devices
feature a power-on delay when coming out of shutdown,
holding OUT low for approximately 2.5µs to ensure
glitch-free controller output.
The MAX9930–MAX9933 family is available in an 8-pin
µMAX
®
package. These devices consume 7mA with a
5V supply, and when powered down, the typical shut-
down current is 13µA.
Applications
RSSI for Fiber Modules, GPON-CATV Triplexors
Low-Frequency RF OOK and ASK Applications
Transmitter Power Measurement and Control
TSI for Wireless Terminal Devices
Cellular Handsets (TDMA, CDMA, GPRS, GSM)
Features
♦ Complete RF-Detecting PA Controllers
(MAX9930/MAX9931/MAX9932)
♦ Complete RF Detector (MAX9933)
♦ Variety of Input Ranges
MAX9930/MAX9933: -58dBV to -13dBV
(-45dBm to 0dBm for 50Ω Termination)
MAX9931: -48dBV to -3dBV
(-35dBm to +10dBm for 50Ω Termination)
MAX9932: -43dBV to +2dBV
(-30dBm to +15dBm for 50Ω Termination)
♦ 2MHz to 1.6GHz Frequency Range
♦ Temperature Stable Linear-in-dB Response
♦ Fast Response: 70ns 10dB Step
♦ 10mA Output Sourcing Capability
♦ Low Power: 17mW at 3V (typ)
♦ 13µA (typ) Shutdown Current
♦ Available in a Small 8-Pin µMAX Package
MAX9930–MAX9933
2MHz to 1.6GHz 45dB RF-Detecting
Controllers and RF Detector
________________________________________________________________
Maxim Integrated Products
1
MAX9930
MAX9931
MAX9932
+
1
2
3
4
V
CC
OUT
N.C.
GND
TOP VIEW
RFIN
SHDN
SET
CLPF
8
7
6
5
µMAX
MAX9933
+
1
2
3
4
V
CC
OUT
N.C.
GND
RFIN
SHDN
GND
CLPF
8
7
6
5
µMAX
Pin Configurations
19-0859; Rev 1; 3/09
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
EVALUATION KIT
AVAILABLE
Block Diagram appears at end of data sheet.
Ordering Information
+
Denotes a lead-free package.
T = Tape and reel.
PART TEMP RANGE PIN-PACKAGE
MAX9930EUA+T -40
o
C to +85
o
C 8 µMAX-8
MAX9931EUA+T -40
o
C to +85
o
C 8 µMAX-8
MAX9932EUA+T -40
o
C to +85
o
C 8 µMAX-8
MAX9933EUA+T -40
o
C to +85
o
C 8 µMAX-8
µMAX is a registered trademark of Maxim Integrated Products, Inc.
MAX9930–MAX9933
2MHz to 1.6GHz 45dB RF-Detecting
Controllers and RF Detector
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 3V, SHDN = 1.8V, T
A
= -40
o
C to +85
o
C, C
CLPF
= 100nF, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(Voltages referenced to GND.)
V
CC
.......................................................................... -0.3V to +6V
OUT, SET, SHDN, CLPF ............................ -0.3V to (V
CC
+ 0.3V)
RFIN
MAX9930/MAX9933 .....................................................+6dBm
MAX9931 ....................................................................+16dBm
MAX9932 ....................................................................+19dBm
Equivalent Voltage
MAX9930/MAX9933................................................. 0.45V
RMS
MAX9931 ....................................................................1.4V
RMS
MAX9932 ....................................................................2.0V
RMS
OUT Short Circuit to GND ........................................ Continuous
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 4.5mW/°C above +70°C) .............362mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
2.70 5.25 V
Supply Current I
CC
V
CC
= 5.25V 7 12 mA
Shutdown Supply Current I
CC
SHDN = 0.8V, V
CC
= 5V 13 µA
Shutdown Output Voltage V
OUT
SHDN = 0.8V 1 mV
Logic-High Threshold Voltage V
H
1.8 V
Logic-Low Threshold Voltage V
L
0.8 V
SHDN = 3V 5 30
SHDN Input Current I
SHDN
SHDN = 0V -1 -0.01
µA
MAIN OUTPUT (MAX9930/MAX9931/MAX9932)
High, I
SOURCE
= 10mA 2.65 2.75
Voltage Range V
OUT
Low, I
SINK
= 350µA 0.15
V
Output-Referred Noise From CLPF 8 nV/√Hz
Small-Signal Bandwidth BW From CLPF 20 MHz
Slew Rate V
OUT
= 0.2V to 2.6V from CLPF 8 V/µs
SET INPUT (MAX9930/MAX9931/MAX9932)
Voltage Range (Note 2) V
SET
Corresponding to central 40dB span 0.35 1.45 V
Input Resistance R
IN
30 MΩ
Slew Rate (Note 3) 16 V/µs
DETECTOR OUTPUT (MAX9933)
RFIN = 0dBm 1.45
Voltage Range V
OUT
RFIN = -45dBm 0.36
V
Small-Signal Bandwidth BW C
CLPF
= 150pF 4.5 MHz
Slew Rate V
OUT
= 0.36V to 1.45V, C
CLPF
= 150pF 5 V/µs
MAX9930–MAX9933
2MHz to 1.6GHz 45dB RF-Detecting
Controllers and RF Detector
_______________________________________________________________________________________ 3
Note 1: All devices are 100% production tested at T
A
= +25°C and are guaranteed by design for T
A
= -40°C to +85°C as specified.
Note 2: Typical value only, set-point input voltage range determined by logarithmic slope and logarithmic intercept.
Note 3: Set-point slew rate is the rate at which the reference level voltage, applied to the inverting input of the g
m
stage, responds to
a voltage step at the SET pin (see Figure 1).
Note 4: Typical min/max range for detector.
Note 5: Pin capacitance to ground.
AC ELECTRICAL CHARACTERISTICS
(V
CC
= 3V, SHDN = 1.8V, f
RF
= 2MHz to 1.6GHz, T
A
= -40°C to +85°C, C
CLPF
= 100nF, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RF Input Frequency Range f
RF
2 1600 MHz
MAX9930/MAX9933 -58 -13
MAX9931 -48 -3
RF Input Voltage Range
(Note 4)
V
RF
MAX9932 -43 +2
dBV
MAX9930/MAX9933 -45 0
MAX9931 -35 +10
Equivalent Power Range
(50Ω Termination) (Note 4)
P
RF
MAX9932 -30 +15
dBm
f
RF
= 2MHz, T
A
= +25°C 25 27 29
f
RF
= 2MHz 24 27 30
f
RF
= 900MHz, T
A
= +25°C 23.5 25.5 27.5
f
RF
= 900MHz 22.5 25.5 28.5
Logarithmic Slope V
S
f
RF
= 1600MHz 27
mV/dB
MAX9930/MAX9933 -61 -56 -52
MAX9931 -51 -46 -42
f
RF
= 2MHz,
T
A
= +25°C
MAX9932 -46 -41 -37
MAX9930/MAX9933 -63 -56 -50
MAX9931 -53 -46 -40f
RF
= 2MHz
MAX9932 -48 -41 -35
MAX9930/MAX9933 -62 -59 -53
MAX9931 -53 -50 -44
f
RF
= 900MHz,
T
A
= +25°C
MAX9932 -49 -45 -40
MAX9930/MAX9933 -64 -59 -51
MAX9931 -55 -50 -42f
RF
= 900MHz
MAX9932 -51 -45 -38
MAX9930/MAX9933 -62
MAX9931 -52
Logarithmic Intercept P
X
f
RF
= 1600MHz
MAX9932 -47
dBm
RF INPUT INTERFACE
DC Resistance R
DC
Connected to V
CC
2kΩ
Inband Capacitance C
IB
Internally DC-coupled (Note 5) 0.5 pF
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MAX9933EUA+

Mfr. #:
Buy MAX9933EUA+
Manufacturer:
Maxim Integrated
Description:
RF Detector 2MHz to 1.6GHz 45dB RF Detector
Lifecycle:
New from this manufacturer.
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