Rainbow Electronics MAX2203 User Manual
Max2203 rms power detector, General description, Applications

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
♦ -24dBm to +3dBm Power-Detection Range
♦ 35mV/dB (typ) Log Detector
♦ 0.1dB (typ) RMS Accuracy from WCDMA
Modulation Change
♦ ±0.4dB Detection Error Due to Temperature
♦ +2.5V to +4.2V Single-Supply Operation
♦ Space-Saving 6-Bump WLP Package
MAX2203
RMS Power Detector
________________________________________________________________
Maxim Integrated Products
1
V
CC
A
1
2
+
RFIN/ENA
GND
OUT
FILT
GND
TOP VIEW
(BUMPS ON BOTTOM)
B
C
MAX2203
Pin Configuration
Ordering Information
19-4982; Rev 0; 10/09
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
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX2203EWT+T10 -40
°C to +85°C 6
WLP
AA
+
Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Operating Circuit appears at end of data sheet.
cdma2000 is a registered trademark of Telecommunications
Industry Association.