Datasheet

MAX2831/MAX2832
2.4GHz to 2.5GHz 802.11g/b
RF Transceivers with Integrated PA
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(MAX2831 EV kit: V
CC_
= 2.7V to 3.6V, V
CCPA
= V
CCTXPA
= 2.7V to 4.2V, T
A
= -40°C to +85°C, Rx set to the maximum gain. CS =
high, RXHP = SCLK = DIN = low, RSSI and clock output buffer are off, no signal at RF inputs, all RF inputs and outputs terminated
into 50Ω, receiver baseband outputs are open. 100mV
RMS
differential I and Q signals (54Mbps IEEE 802.11g OFDM) applied to I/Q
baseband inputs of transmitter in transmit mode, f
REF
= 40MHz, and registers set to recommended settings and corresponding test
mode, unless otherwise noted. Typical values are at V
CC
= 2.8V, V
CCPA
= 3.3V, and T
A
= +25°C, LO frequency = 2.437GHz, unless
otherwise noted. RF inputs/outputs specifications are referenced to device pins and do not include 1dB loss from EV kit PCB, balun,
and SMA connectors.) (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.
V
CCTXPA
, V
CCPA
and TXRF_ to GND ....................-0.3V to +4.5V
V
CCLNA
, V
CCTXMX
, V
CCPLL
, V
CCCP
, V
CCXTAL
, V
CCVCO
,
V
CCRXVGA
, V
CCRXFL
, and V
CCRXMX
_ to GND....-0.3V to +3.9V
B6, B7, B3, B2, SHDN, B5, CS, SCLK, DIN, B1, TUNE, B4,
TXBBI_, TXBBQ_, RXHP, RXTX, RXBBI_, RXBBQ_, RSSI,
BYPASS, CPOUT, LD, CLOCKOUT, XTAL, CTUNE, RXRF_ to
GND .......................................-0.3V to (Operating V
CC
+ 0.3V)
RXBBI_, RXBBQ_, RSSI, BYPASS, CPOUT, LD, CLOCKOUT
Short-Circuit Duration ..........................................................10s
RF Input Power ...............................................................+10dBm
Continuous Power Dissipation (T
A
= +70°C)
48-Pin TQFN (derates 27.8mW/°C above +70°C) ..........2.22W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
CAUTION! ESD SENSITIVE DEVICE
PARAMETERS CONDITIONS MIN TYP MAX UNITS
V
CC_
2.7 3.6
Supply Voltage
V
CCPA
, V
CCTXPA
2.7 4.2
V
S hutd own m od e,
B7: B1 = 0000000,
r efer ence osci ll ator not
ap pl i ed
T
A
= +25°C 20 µA
T
A
= +25°C 28 35
Standby mode
T
A
= -40°C to +85°C 35
T
A
= +25°C 62 78
Rx mode
T
A
= -40°C to +85°C 82
MAX2831, transmit section 82 104
M AX 2831, P A, P
OU T
= + 18.2d Bm 209 258
Tx mode, T
A
= +25°C,
V
CC
= 2.8V, V
CCPA
=
3.3V, (Note 2)
MAX2832 86
Rx calibration mode T
A
= +25°C 101
Supply Current
Tx calibration mode T
A
= +25°C 78
mA
Rx I/Q Output Common-Mode
Voltage
T
A
= +25°C at default common-mode setting 0.98 1.2 1.33 V
T
A
= -40°C (relative to T
A
= +25°C) -17
Rx I/Q Output Common-Mode
Voltage Variation
T
A
= +85°C (relative to T
A
= +25°C) 15
mV
Tx Baseband Input Common-
Mode Voltage Operating Range
DC-coupled 0.9 1.3 V
Tx Baseband Input Bias Current Source current 22 µA