ML2724 Просмотр технического описания (PDF) - Micro Linear Corporation
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ML2724 Datasheet PDF : 26 Pages
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ML2724
SYMBOL PARAMETER
fFREF Reference signal frequency
VFREF Reference signal input level
RECEIVER
ZIN
NF
DRRX
S
Receiver input impedance
Receiver noise figure
Data Rate
Input Sensitivity
BWRX
PIMAX
Bandwidth
Maximum RX RF input
IIP3
Receiver Input IP3
LO leakage at RXI
IRR Mixer Image Rejection Ratio
Adjacent channel rejection
IF FILTERS
fIFC
BWIF
IF filter center frequency
IF filter 3dB bandwidth
LIMITER, AGC, AND FM DEMODULATOR
tOVLD
Recovery from overload
Eb/No
Co-Channel rejection, 0.1% BER
VODC
VOPK
VOL
Quiescent voltage @ AOUT
Output voltage swing AOUT
AOUT open-drain voltage
RSSI PERFORMANCE
tRRSSI
tFRSSI
GRSMID
VRSMX
VRSMD
RSSI rise time No Signal to
-15dBm into the IF mixer
RSSI fall time, < -15dBm to
No Signal into the IF mixer
RSSI sensitivity
RSSI maximum voltage
RSSI midrange voltage
CONDITIONS
6.144MHz or 12.288MHz sine wave,
capacitively coupled
fc=2445MHz
fc=2445MHz
FSK modulation, fdev=+/-512kHz
<12.5% CER at 1.536Mchip/s
<0.1% BER at 1.536Mbps
3dB Bandwidth
<12.5% CER at 1.536Mchip/s
<0.1% BER at 1.536Mb/s
Test tones 2 and 4 channels away
Measured at 3.5MHz offset
-80dBm wanted signal <10-3 BER
Single 2GFSK modulated interferer
with a 1.5MHz –20dBc bandwidth
1 channel away
2 channels away
3 or more channels away
After Automatic Filter Alignment
After Automatic Filter Alignment
From +15dBm at input
For 0.1% BER
-80 dBm, modulated with
1.536Mbps GFSK, BT=0.5, PRBS
data
IO=100μA, TPC Mode
20pF load, 20% to 80%
20pF load, 20% to 80%
(V-40dBm – V-60dBm)/20dB
See Figure 3
-40dBm into RXI
MIN
2.0
-82
+5
-4
0.55
28
1.8
1.4
TYP
6.144
12.288
MAX
VCCA
UNITS
MHz
MHz
VPP
2.2+j0
16.5
1.536
-90
-81
770
-15
-60
35
Ω
dB
Mbps
dBm
dBm
kHz
dBm
dBm
dBm
dBm
dB
6
dB
31
dB
36
dB
1.024
1405
MHz
kHz
5
12
μs
10.5
dB
10.5
dB
1.1
V
1.1
VPP
0.4
V
4.5
μs
3.0
μs
36
42 mV/dB
2.3
V
1.7
2.0
V
DS2724-F-03
FINAL DATASHEET
DECEMBER 2005 5
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