ML2722 データシートの表示（PDF） - Micro Linear Corporation
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ML2722 Datasheet PDF : 28 Pages
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ML2722
RECEIVER
ZIN
NF
DRRX
S
BWRX
PIMAX
IIP3
IRR
Receiver RF impedance
Receiver RF noise figure
Data Rate
Input Sensitivity
Bandwidth
Maximum RX RF input
Receiver input IP3
LO Leakage at RXI
Receive RF mixer image
rejection
Adjacent channel rejection
Receiver settling time
fc=915MHz
fc=915MHz
FSK modulation, fdev=+/-460kHz
For better than 12.5% CER
3dB nominal
<12.5% CER at 1.536Mchip/s
Test tones 2 and 4 channels away
Measured at 3.5MHz offset
-80dBm wanted signal <12.5% CER
(a single interferer with 2GFSK
modulation to give a
-20dBc bandwidth of 1.5MHz)
1 channel
2 channels
3 or more channels
RXON high to valid data
IF FILTERS
fIFC
BWIF
IF filter center frequency
IF filter 3dB bandwidth
After Automatic Filter Alignment
After Automatic Filter Alignment
LIMITER, AGC, AND FM DEMODULATOR
tOVLD
Recovery from overload
Eb/No
Co-Channel rejection, 12.5%
CER
AM tolerance for 12.5% or better
CER
From 0dBm at input
For 12.5% CER
-80dBm, modulated with 1.536Mbps
GFSK, BT=0.5, PRBS data
-80dBm wanted signal, AM
modulation depth at 100kHz rate
RSSI PERFORMANCE
tRRSSI
tFRSSI
VRSMX
VRSMN
GRSMID
PRSMX
PRSMN
RSSI rise time: < -100dBm to
-15dBm into the IF mixer
RSSI fall time: <-15dBm to
<-100dBm into the IF mixer
RSSI maximum voltage
RSSI minimum voltage
RSSI sensitivity, mid range
RSSI maximum signal
RSSI minimum signal
RSSI accuracy
20pF load, 20% to 80%
20pF load, 20% to 80%
-15dBm in
No signal
Sensitivity is >50% mid range
Sensitivity is >50% mid range
Measured at -40dBm input power
17-j50
9
1.536
-95
770
8
-12
-80
35
15
40
45
120
1.024
1405
5
12
3
4
90
1
5.3
10
1
4.4
10
2.2
2.8
0.05
28
35
42
-20
-95
1.5
1.9
2.1
Ω
dB
Mbps
dBm
kHz
dBm
dBm
dBm
dB
dB
μs
MHz
kHz
μs
dB
dB
%
μs
μs
V
V
mV/dB
dBm
dBm
V
DS2722-F-06
FINAL DATASHEET
DECEMBER 2005 5
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