MAX2831ETM+ Maxim Integrated Products, MAX2831ETM+ Datasheet - Page 4

• Manufacturer Part Number: MAX2831ETM+
• Description: RF Transceiver 2.4GHz to 2.5GHz, 80 2.11g RF Transceiver
• Manufacturer: Maxim Integrated Products

Specifications of MAX2831ETM+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.4GHz to 2.5GHz 802.11g/b
RF Transceivers with Integrated PA
AC ELECTRICAL CHARACTERISTICS—Rx Mode (continued)
(MAX2831 EV kit: V
puts at 112 mV
RF pins using the typical applications and registers set to default settings and corresponding test mode, unless otherwise noted.
Unmodulated single-tone RF input signal is used with specifications which normally apply over the entire operating conditions, unless
otherwise indicated. 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)
4
Baseband Gain Range
DSB Noise Figure
In-Band Compression Point
Based on EVM
In-Band Output P-1dB
Out-of-Band Input IP3 (Note 4)
I/Q Phase Error
I/Q Gain Imbalance
RX I/Q Output Load Impedance
(R || C)
Tx-to-Rx Conversion Gain for Rx
I/Q Calibration
Baseband VGA Settling Time
I/Q Output DC Step when RXHP
Transitions from 1 to 0 in
Presence of 802.11g Short
Sequence
I/Q Output DC Droop
I/Q Static DC Offset
Spurious Signal Emissions from
LNA input
RECEIVER BASEBAND FILTERS
Gain Ripple in Passband
G r oup - D el ay Ri p p l e i n P assb and
_______________________________________________________________________________________
PARAMETER
RMS
CC_
(-19dBV), f
= 2.8V, V
REF
CCPA
= 40MHz, SHDN = CS = high, RXTX = SCLK = DIN = low, with power matching for the differential
From maximum baseband gain (B5:B1 = 11111) to
minimum baseband gain (B5:B1 = 00000)
Voltage gain = maximum with B7:B6 = 11
Voltage gain = 50dB with B7:B6 = 11
Voltage gain = 45dB with B7:B6 = 10
Voltage gain = 15dB with B7:B6 = 0X
-19dBV
output EVM degrades to
9%
Voltage gain = 90dB, with B7:B6 = 11
B7:B6 = 11
B7:B6 = 10
B7:B6 = 0X
1σ variation (without calibration)
1σ variation (without calibration)
Minimum differential resistance
Maximum differential capacitance
For receiver gain, B7:B1 = 1101111 (Note 5)
Gain change from B5:B1 = 10111 to B5:B1 = 00111; gain
settling to within ±2dB of steady state
After switching RXHP to logic 0 from initial logic 1, during
ideal short sequence data at -55dBm input in AWGN
channel, for -19dBV output; normalized to RMS signal on
I and Q outputs; transition point varied from 0 to 0.8µs in
steps of 0.1µs
After switching RXHP to 0, D13:D12, Register 7
(A3:A0 = 0111)
RXHP = 1, B7:B1 = 1101110, 1σ variation
RF = 1GHz to 26.5GHz
10kHz to 8.5MHz at baseband
10kHz to 8.5MHz at baseband
= V
CCTXPA
RMS
baseband
= 3.3V, T
CONDITIONS
A
=+25°C, f
B7:B6 = 11
B7:B6 = 10
B7:B6 = 0X
RF
= 2.439GHz, f
LO
= 2.437GHz; receiver baseband I/Q out-
MIN
55
±0.35
TYP
±0.1
±1.3
±45
2.6
3.2
-41
-24
2.5
-12
0.5
0.1
-51
±1
±1
62
16
34
24
10
10
-6
-4
-5
MAX
67
D eg r ees
UNITS
DB
ns
dBm
V
dBm
dBm
dBc
V/s
mV
dB
dB
dB
kΩ
dB
pF
µs
P-P
P-P
P-P