Rainbow Electronics MAX2406 - Manual

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________________General Description
The MAX2406 low-noise amplifier (LNA)/downconverter
mixer is designed for use over a wide range of frequen-
cies and is optimized for communications systems
operating at a frequency of 1.9GHz. Applications
include PWT1900/DCT1900, DCS1800/PCS1900, PHS,
and DECT. This device includes an LNA, a downcon-
verter mixer, and a local-oscillator (LO) buffer in a low-
cost, plastic surface-mount package. At 1.9GHz, the
LNA has 2.5dB typical noise figure and a -9.5dBm input
third-order intercept point (IP3). The downconverter
mixer has a low 9.1dB noise figure and a 4.5dBm input
IP3. Image and LO filtering are implemented off-chip for
maximum flexibility.
The MAX2406 has a differential IF port that can be used
in a single-ended configuration by tying the unused
side to V
CC . The LO buffer can be driven differentially
or in a single-ended configuration with only -10dBm of
LO power. Power consumption is 60mW in receive
mode, and typically drops to less than 1µW in shut-
down mode.
For transceiver applications, the MAX2410 or
MAX2411A both offer a transmitter along with a similar
receiver.
________________________Applications
PWT1900/DCT1900
DCS1800/PCS1900
PHS/PACS
DECT
____________________________Features
♦ Integrated LNA/Downconverter
♦ 3.2dB Combined Receiver Noise Figure:
2.5dB (LNA)
9.1dB (mixer)
♦ -12.5dBm Combined Receiver Input IP3:
-9.5dBm (LNA)
4.5dBm (mixer)
♦ LO Buffer
♦ +2.7V to +5.5V Single-Supply Operation
♦ 60mW Power Consumption
♦ Low-Power Shutdown Mode
MAX2406
Low-Cost Downconverter
with Low-Noise Amplifier
________________________________________________________________ Maxim Integrated Products 1
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
GND
LNAOUT
GND
GND GND
GND
LNAIN
GND
TOP VIEW
RXMXIN
GND
IF
IF LO
LO
RXEN
V
CC
12
11
9
10
GND
GND GND
V CC
MAX2406
QSOP
__________________Pin Configuration
POWER
MANAGEMENT
RXMXIN
IF
IF
LO
LNAIN
LNAOUT
RXEN
MAX2406
LO
________________Functional Diagram
19-1303; Rev 0; 10/97
PART
MAX2406EEP -40°C to +85°C
TEMP. RANGE PIN-PACKAGE
20 QSOP
EVALUATION KIT
AVAILABLE
______________Ordering Information
Typical Application Functional Diagram appears at end of
data sheet.