NJM2549
PARAMETER
DETECTION
SYMBOL
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
IF IN = 10.62MHz, No Modulation,
Test Circuit 1
IF IN = 10.7MHz, No Modulation,
Test Circuit 1
IF IN = 10.83MHz, No Modulation,
Test Circuit 1
VO DC
VO DC
VO DC
VOAC
VOAC
1
-
0.8
2.7
120
100
-
0.1
1.1
2.9
150
130
33
0.3
Demodulated DC Level
V
2
1.4
3
-
Demodulated Signal Level
1
Test Circuit 1
180
mVrms
dBuV
dB
Demodulated Signal Level
of IF/3
IF IN = 3.56667MHz, 100dBuV,
Test Circuit 1
2
160
12dB SINAD Sensitivity
- 3dB Limiting Sensitivity
Signal to Noise Ratio
12dBS/N Test Circuit 1
-
Measured at -3dB,
PI LIM
S/N
-
22
-
Test Circuit 1
Ratio of S+N and N,
Test Circuit 1
AM = 30%,
Test Circuit 1
fdev = ± 30kHz,
Test Circuit 1
-
45
-
-
AM Rejection Ratio
AMR
THD
IOAF
-
45
Total Harmonic Distortion
AF Output pin Bias Current
-
0.5
205
-
%
No Signal,
Test Circuit 4
160
250
uA
fdev = ±100kHz,
fmod = 1kHz to 1MHz,
Gain deflection, Test Circuit 6
Demodulated Signal
Frequency Characteristics
fDET
-
-2
-
dB
RSSI
No Signal,
Test Circuit 1
IF IN = 45dBuV,
Test Circuit 1
IF IN = 80dBuV,
Test Circuit 1
IF IN = 100dBuV,
Test Circuit 1
5 - 6 pin Resistance,
VRSSI
VRSSI
VRSSI
1
-
10
550
1.7
2
50
750
1.85
2.1
mV
V
2
350
1.5
1.8
12
RSSI Output Voltage
3
VRSSI4
RSSI Output Resistance
RSSI Dynamic Range
RO RSSI
15
18
KΩ
Test Circuit 3
X = ( VRSSI3 - VRSSI2 ) / 35,
D1 = 45 - ( VRSSI2 - VRSSI1 ) / X,
D2 = 80 + ( VRSSI4 – VRSSI 3 ) / X,
DRSSI
-
-
60
4
-
-
dB
DRSSI = D2 - D1
Time taken for RSSI Output to
change from 10% to 90% after IF
signal turns on.
TRI
Test Circuit 7
RSSI Response
usec
Time taken for RSSI Output to
change from 90% to 10% after IF
signal turns off.
TFI
-
4
-
Test Circuit 7
The values shown in parenthesis are reference values.
Ver.2010-06-24
- 3 -
NJRC [ NEW JAPAN RADIO ]
