MAX2837ETM-TD(2008) 查看數據表（PDF） - Maxim Integrated
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MAX2837ETM-TD Datasheet PDF : 18 Pages
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2.3GHz to 2.7GHz Wireless
Broadband RF Transceiver
AC ELECTRICAL CHARACTERISTICS—Tx MODE
(MAX2837 evaluation kit: VCC_ = 2.8V, TA = +25°C, fRF = 2.502GHz, fLO = 2.5GHz; fREF = 40MHz, ENABLE = TXENABLE = CS = high,
and RXENABLE = SCLK = DIN = low, with power matching for the differential RF pins using the Typical Operating Circuit. Lowpass
fitler is set to 10MHz RF channel BW, 90mVRMS sine and cosine signal (or 90mVRMS 64QAM 1024-FFT OFDMA FUSC I/Q signals
wherever OFDM is mentioned) applied to baseband I/Q inputs of transmitter (differential DC-coupled).) (Note 1)
PARAMETER
CONDITIONS
TRANSMIT SECTION: Tx BASEBAND I/Q INPUTS TO RF OUTPUTS
RF Output Frequency Range
Peak-to-Peak Gain Variation over
RF Band
Output optimally matched over 200MHz RF BW
Total Voltage Gain
Max gain; at unbalanced 50 balun output
Maximum Output Power over
Frequency for Any Given
200MHz Band
OFDM signal conforming to spectral emission mask
and -36dB EVM after I/Q imbalance calibration by
modem (Note 3)
RF Output Return Loss
Given 200MHz band in the 2.3GHz to 2.7GHz range,
for which the matching has been optimized
RF Gain Control Range
Unwanted Sideband Suppression Without calibration by modem, and excludes modem
I/Q imbalance; POUT = 0dBm
B1
B2
B3
RF Gain-Control Binary Weights
B4
B5
B6
Carrier Leakage
Relative to 0dBm output power; without calibration by
modem
Tx I/Q Input Impedance (R || C)
Baseband Frequency Response
for 5MHz RF Channel BW
Minimum differential resistance
Maximum differential capacitance
0 to 2.3MHz
At > 25MHz
Baseband Frequency Response
for 10MHz RF Channel BW
Baseband Group Delay Ripple
0 to 4.6MHz
At > 17MHz
0 to 2.3MHz (BW = 5MHz)
0 to 4.6MHz (BW = 10MHz)
MIN TYP MAX UNITS
2.3
2.7
GHz
2.5
dB
12
dB
0
dBm
8
dB
45
dB
45
dBc
1
2
4
dB
8
16
16
-35
dBc
100
k
0.5
pF
0.2
dB
80
0.2
dB
80
20
ns
12
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