Datasheet

MAX2831/MAX2832
2.4GHz to 2.5GHz 802.11g/b
RF Transceivers with Integrated PA
18 ______________________________________________________________________________________
B2
1
2
3
4
5
6
7
8
9
10
11
12
13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37
36
35
34
33
32
31
30
29
28
27
26
25
V
CCLNA
B6
GNDRXLNA
RXRF+
RXRF-
B7
V
CCPA
TXRF+
TXRF-
SHDN
POWER DETECTOR
SERIAL
INTERFACE
TEMP
SENSOR
AM
DETECTOR
V
CCTXPA
B5
CS
RSSI
V
CCTXMX
SCLK
DIN
V
CCPLL
CLOCKOUT
LD
B1
CPOUT
RXBBQ+
RXBBQ-
RX Q
OUTPUTS
RX/TX GAIN
CONTROL
B4
BYPASS
TUNE
GNDVCO
CTUNE
V
CCVCO
XTAL
PLL
÷
GNDCP
SERIAL INPUTS
V
CCXTAL
V
CCCP
RXTX
GNDTEST
V
CCRXMX
TXBBI+
TXBBI-
TXBBQ+
TXBBQ-
V
CCRXFL
RXHP
V
CCRXVGA
RXBBI+
RXBBI-
MAX2831
MODE
CONTROL
RX/TX GAIN
CONTROL
RX/TX GAIN
CONTROL
REFERENCE
CLOCK BUFFER
OUTPUT
NOTE: ALL GROUND (PINS 2, 26, AND 31) AND BYPASS CAPACITORS’ GROUND REQUIRE THEIR OWN VIAS TO GROUND.
DO NOT CONNECT THEM TO THE EXPOSED PADDLE GROUND.
RX BASEBAND HPF
CORNER FREQUENCY
CONTROL
B3
RX/TX
GAIN CONTROL
RX INPUT
TX OUTPUT
MODE CONTROL
RX/TX GAIN
CONTROL
RX/TX GAIN
CONTROL
RX GAIN
CONTROL
TX INPUT RX I OUTPUTS
0°
90°
RSSI
MUX
TO RSSI
MUX
RSSI
TEMP
SENSOR
CRYSTAL
OSCILLATOR/
BUFFER
÷
RSSI
TO
RSSI
MUX
MUX
IMUX QMUX
MUX
Block Diagrams/Typical Operating Circuits