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PDF MAX2203 Data sheet ( Hoja de datos )
| Número de pieza | MAX2203 | |
| Descripción | RMS Power Detector | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX2203 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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19-4982; Rev 0; 10/09
EVAALVUAAILTAIOBNLEKIT
RMS Power Detector
General Description
The MAX2203 RMS power detector is designed to
operate from 800MHz to 2.0GHz. The device is ideal for
wideband code-division multiple access (WCDMA),
cdma2000®, and high-speed downlink/uplink packet
access. The MAX2203 accepts an RF signal at the
input and outputs the same voltage regardless of the
peak-average of the input signal. The output voltage
and input power is linear in dB. The device has a
-24dBm to +3dBm detection range, and every dB
change in input power gives 35mV (typ) change in out-
put voltage.
The MAX2203 operates from a 2.5V to 4.2V supply and
is specified over the -40°C to +85°C extended tempera-
ture range. The device is available in a 6-bump WLP
package.
Applications
WCDMA, cdma2000, 1xEVDO
High-Speed Downlink Packet Access (HSDPA)
High-Speed Uplink Packet Access (HSUPA)
Features
o -24dBm to +3dBm Power-Detection Range
o 35mV/dB (typ) Log Detector
o 0.1dB (typ) RMS Accuracy from WCDMA
Modulation Change
o ±0.4dB Detection Error Due to Temperature
o +2.5V to +4.2V Single-Supply Operation
o Space-Saving 6-Bump WLP Package
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
MAX2203EWT+T10 -40°C to +85°C 6 WLP
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
TOP
MARK
AA
Pin Configuration
Typical Operating Circuit appears at end of data sheet.
www.DataSheet4U.com
TOP VIEW
(BUMPS ON BOTTOM)
1
+
2
MAX2203
A
RFIN/ENA GND
B
GND FILT
C
VCC OUT
cdma2000 is a registered trademark of Telecommunications
Industry Association.
________________________________________________________________ Maxim Integrated Products 1
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.
1 page  
RMS Power Detector
BUMP
A1
A2, B1
B2
C1
C2
Pin Description
NAME
RFIN/ENA
GND
FILT
VCC
OUT
FUNCTION
RF Input and Enable Logic Input. See the Typical Operating Circuit. Drive ENA high to turn on the
device. Drive ENA low to place it in shutdown mode.
Ground. Connect to PCB ground plane.
Intermediate Filtering Node. Bypass FILT with a capacitor as close as possible to the device.
Power Supply. Connect to either a regulated supply or battery. Bypass VCC with a capacitor as close
as possible to the device.
Detector Output. Connect an external lowpass RC filter for filtering.
Detailed Description
The MAX2203 RMS power detector is designed to
operate from 800MHz to 2.0GHz. The device is ideal for
WCDMA, cdma2000, and high-speed downlink/uplink
packet access. The MAX2203 accepts an RF signal at
the input and outputs the same voltage regardless of
the peak-average of the input signal. The output volt-
age and input power is linear in dB. The device has a
-24dBm to +3dBm detection range, and every dB
change in input power gives 35mV (typ) change in out-
put voltage. Table 1 shows the peak to average of the
signals used to test the MAX2203.
Table 1. Peak-to-Average Ratio (PAR*) of Test Signals
MODULATION
DPCCH + 1DPDCH
DPCCH + 5DPDCH
IS95 Reverse
www.DatIaSS9h5eFeot4rUw.acrodmPilot
9-Channel Forward
cdma2000 Pilot + DCCH
*PAR of CW is 3dB.
PAR AT DIFFERENT PROBABILITY OF COMPLEMENTARY CUMULATIVE
DISTRIBUTION (dB)
10%
1%
0.1%
0.01%
4.8 5.8 6.2 6.5
6.5 8.4 9.2 9.8
5.5 6.9 7.6 8.1
5.6 7.6 8.8 9.5
7 10.3 12 12.7
6.8 8.3 9.2 9.7
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet MAX2203.PDF ] | |
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