NJRC NJM2549 Wide band fm if demodulator Datasheet

NJM2549
WIDE BAND FM IF DEMODULATOR
GENERAL DESCRIPTION
PACKAGE OUTLINE
The NJM2549 is a wide band IF IC with a maximum
IF input frequency of 15 MHz.
It includes an IF Amplifier, Quadrature Detector, RSSI
and IF Balanced Output.
NJM2549RB2
MAIN APPLICATIONS
RF ID
Radar detector
Wireless Infrared Communication System
Voice Transmission System
A few MHz band Signal Detector
FEATURES
Wide Range Operating Voltage
Low Operating Current
Wide Range IF Input Frequency
2.7V to 9V (recommended supply voltage)
3mA (standard)
10.7MHz (standard)
100kHz to 15MHz (reference value)
DC to 1MHz (reference value)
Wide Band FM Detector Range
RSSI Quick Response
High FM Detection Sensitivity
IF Amplifier with Balanced Output
Bipolar Technology
Package Outline
22dBuV (- 3dB Limiting Sensitivity)
TVSP10
BLOCK DIAGRAM
AF
OUT
QUAD
IN
IF
OUT1
IF
OUT2
RSSI
OUT
10
9
8
7
6
QUAD
DET
IF AMP
1
V
Ver.2010-06-24
+
RSSI
2
3
4
5
IF
IN
IF
DEC1
IF
DEC2
GND
-1-
NJM2549
ABSOLUTE MAXIMUM RATINGS
PARAMETER
(Ta=25°C)
SYMBOL
RATINGS
UNIT
+
Supply Voltage
V
10
V
Power Dissipation
PD
300
mW
Operating Temperature
Topr
- 40 to + 85
°C
Storage Temperature
Tstg
- 50 to + 125
°C
RECOMMENDED OPERATIONAL CONDITION
PARAMETER
Supply Voltage
SYMBOL
TEST CONDITIONS
V+
(Ta=25°C)
MIN.
TYP.
MAX.
UNIT
2.7
3
9
V
ELECTRICAL CHARACTERISTICS
(Ta = 25°C, V+ = 3V, IF IN = 10.7MHz / 80dBuV, fdev = ± 10kHz, fmod = 1kHz, unless otherwise noted)
PARAMETER
Current Consumption
SYMBOL
Iccq
TEST CONDITIONS
No Signal,
Test Circuit 1
MIN.
TYP.
MAX.
UNIT
-
3
3.7
mA
70
75
80
dB
-3
0
3
IF
IF Input / Output Gain
IF Output Gain Frequency
Characteristics
G IF
f IF1
f IF2
IF Amplifier Input Resistance
RI IF
IF Output Level
VO IF
Duty Ratio of Wave IF Output
DR IF
IF Output Current
Ver.2010-06-24
I OIF
IF IN = 20dBuV ,
Test Circuit 4
The ratio from the gain at 10.7MHz
to the gain at 1MHz,
Test Circuit 4
The ratio from the gain at 10.7MHz
to the gain at 15MHz,
Test Circuit 4
2 - 4 pin Resistance,
Test Circuit 3
RL = 15kΩ, No Modulation,
Test Circuit 4
RL = 15kΩ, No Modulation,
Test Circuit 4
No Signal,
Test Circuit 4
dB
-4
-1
2
8.5
10
11.5
kΩ
350
425
500
mVpp
44
50
58
%
230
290
350
uA
-2-
NJM2549
PARAMETER
SYMBOL
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
DETECTION
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
-
0.1
0.3
0.8
1.1
1.4
2.7
2.9
-
VO AC1
Test Circuit 1
120
150
180
VO AC2
IF IN = 3.56667MHz, 100dBuV,
Test Circuit 1
VO DC1
Demodulated DC Level
VO DC2
VO DC3
Demodulated Signal Level
Demodulated Signal Level
of IF/3
12dB SINAD Sensitivity
mVrms
12dBS/N Test Circuit 1
- 3dB Limiting Sensitivity
PI LIM
Signal to Noise Ratio
S/N
AM Rejection Ratio
AMR
Total Harmonic Distortion
THD
AF Output pin Bias Current
IO AF
Demodulated Signal
Frequency Characteristics
fDET
V
100
130
160
-
33
-
-
22
-
-
45
-
-
45
-
-
0.5
-
%
160
205
250
uA
-
-2
-
dB
-
10
50
dBuV
Measured at -3dB,
Test Circuit 1
Ratio of S+N and N,
Test Circuit 1
AM = 30%,
Test Circuit 1
fdev = ± 30kHz,
Test Circuit 1
No Signal,
Test Circuit 4
fdev = ±100kHz,
fmod = 1kHz to 1MHz,
Gain deflection, Test Circuit 6
dB
RSSI
V RSSI1
RSSI Output Voltage
V RSSI2
V RSSI3
V RSSI4
RSSI Output Resistance
RSSI Dynamic Range
RO RSSI
DRSSI
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,
Test Circuit 3
350
550
750
1.5
1.7
1.85
1.8
2
2.1
12
15
18
KΩ
-
60
-
dB
-
4
-
V
X = ( VRSSI3 - VRSSI2 ) / 35,
D1 = 45 - ( VRSSI2 - VRSSI1 ) / X,
D2 = 80 + ( VRSSI4 – VRSSI 3 ) / X,
DRSSI = D2 - D1
Time taken for RSSI Output
change from 10% to 90% after
TRI
signal turns on.
Test Circuit 7
RSSI Response
Time taken for RSSI Output
change from 90% to 10% after
TFI
signal turns off.
Test Circuit 7
The values shown in parenthesis are reference values.
Ver.2010-06-24
mV
to
IF
to
IF
usec
-
4
-
-3-
NJM2549
TEST CIRCUIT
This test circuit allows the measurement of all parameters described in “ELECTRICAL CHARACTERISTICS”.
Test Circuit 1 (Detected Output: S-Curve)
Audio Analyzer
AF OUT
Input impedance = 100kΩ
LPF = 30kHz
V
+
T1
R2
2.4k
C6
82p
C7
0.01u
10
RSSI OUT
9
C5
3p
V
C4
100p
8
7
6
QUAD
DET
IF AMP
1
2
C1
0.01u
C9
10u
C8
0.01u
RSSI
3
C2
0.01u
4
5
C3
0.01u
R1
51
Zo=50
IF IN
Test Circuit 2 (Detected Output: N-Curve, the Detected Output is reversed)
Audio Analyzer
AF OUT
Input impedance = 100kΩ
LPF = 30kHz
V
+
T1
C6
82p
C7
0.01u
10
RSSI OUT
R2
2.4k
9
8
C5
3p
V
C4
100p
7
6
QUAD
DET
IF AMP
1
2
C1
0.01u
C9
10u
C8
0.01u
RSSI
3
C2
0.01u
R1
51
4
5
C3
0.01u
T1:4CJH(Sample No.:080293006)
Zo=50
SAGAMI ELEC CO., LTD. (Japan)
IF IN
Ver.2010-06-24
-4-
NJM2549
Test Circuit 3 for Terminal Resistance
10
9
8
7
6
QUAD
DET
IF AMP
1
2
RSSI
3
4
5
Test Circuit 4 for IF Amplifier
Oscilloscope
A
V
T1
C7
0.01u
C6
82p
A
10
0.01uF
+
15kΩ
Selector
R2
2.4k
9
8
7
6
QUAD
DET
IF AMP
1
2
C1
0.01u
C9
10u
C8
0.01u
RSSI
3
C2
0.01u
4
5
C3
0.01u
R1
51
Zo=50
IF IN
T1:4CJH(Sample No.:080293006)
SAGAMI ELEC CO., LTD. (Japan)
Ver.2010-06-24
-5-
NJM2549
Test Circuit 5 for Demodulated Signal Frequency Characteristics (Detected Output: S-Curve)
AF OUT
Spectrum
Analyzer
FET Probe
V
+
T1
R2
2.4k
C6
82p
C7
0.01u
10
RSSI OUT
9
C5
3p
V
C4
100p
8
7
6
QUAD
DET
IF AMP
1
2
C1
0.01u
C9
10u
C8
0.01u
RSSI
3
C2
0.01u
4
5
C3
0.01u
R1
51
Zo=50
IF IN
Test Circuit 6 for Demodulated Signal Frequency Characteristics (Detected Output: N-Curve)
AF OUT
Spectrum
Analyzer
FET Probe
V
+
T1
C6
82p
C7
0.01u
10
RSSI OUT
R2
360
9
8
C5
3p
V
C4
100p
7
6
QUAD
DET
IF AMP
1
2
C1
0.01u
C9
10u
C8
0.01u
RSSI
3
C2
0.01u
4
5
C3
0.01u
R1
51
Zo=50
IF IN
T1:4CJH(Sample No.:080293006)
SAGAMI ELEC CO., LTD. (Japan)
Ver.2010-06-24
-6-
NJM2549
Test Circuit 7 for RSSI Response
AF OUT
V
+
Oscilloscope
T1
R2
2.4k
C6
82p
C7
0.01u
10
9
C5
3p
C4
100p
8
7
6
QUAD
DET
IF AMP
1
2
C1
0.01u
C9
10u
C8
0.01u
RSSI
3
C2
0.01u
4
5
C3
0.01u
R1
51
Zo=50
IF IN
Signal ON to OFF
OFF to ON
Test Circuit 8 for Demodulated signal (LPF is connected)
Ca
3300p
Audio Analyzer
Input impedance = 100kΩ
LPF = 30kHz
+
fc=
2π
Ra
68k
3
1
Hz
RaRbRcCaCbCc
Rb
68k
Cb
330p
Rc
68k
AF OUT
Cc
1000p
V
+
RSSI OUT
V
T1
R2
2.4k
C6
82p
C7
0.01u
10
9
C5
3p
C4
100p
8
7
6
QUAD
DET
IF AMP
1
2
C1
0.01u
C9
10u
C8
0.01u
RSSI
3
C2
0.01u
4
5
C3
0.01u
R1
51
Zo=50
IF IN
T1:4CJH(Sample No.:080293006)
SAGAMI ELEC CO., LTD. (Japan)
Ver.2010-06-24
-7-
NJM2549
TERMINAL FUNCTION
(Ta = 25°C , V+ = 3V , No signal )
Pin No.
SYMBOL
EQUIVARENT CIRCUIT
VOLTAGE
FUNCTION
1
1
V+
--
Supply Voltage
5
1
1.95V
2pin: IF Amplifier Input
3,4pin: IF Decoupling
An external decoupling
capacitor is connected to
enhance stability.
The bandwidth of IF
Amplifier can be adjusted.
Large capacity: narrow IF
Small capacity: wide IF
--
Received Signal Strength
Indicator Output
Pin6 outputs DC level
proportional to the log of
pin2 input signal level.
1.25V
FM IF Output
This is a balanced output,
and the capacitor for the
phase-shifter is connected
between QUAD IN and
either of IF OUTs.
The
joining
terminal
changes the inclination.
7pin:N-Corve
8pin:S-Corve
2
2
3
4
IF IN
IF DEC1
IF DEC2
3
10k
10k
4
50k
400uA
50k
5
1
70
6
RSSI
6
15k
5
1
70
7
8
7
IF OUT2
IF OUT1
70
8
300uA
300uA
5
Ver.2010-06-24
-8-
NJM2549
Pin No.
SYMBOL
EQUIVARENT CIRCUIT
VOLTAGE
FUNCTION
--
Quadrature
Detector
Input
An external phase-shifting
coil or discriminator is
connected between IF
OUT and pin9.
Note that supply voltage
should be the same as the
voltage supplied to pin1.
1.05V
Demodulated Signal
Output
Can output the wide range
between ground level and
supply voltage level.
1
9
70
QUAD IN
9
25uA
5
1
160uA
10
AF OUT
70
10
5
Ver.2010-06-24
-9-
NJM2549
EVALUATION BOARD
The evaluation board is useful for your design and to have more understanding of the usage and performance of
this device. This circuit is the same as TEST CIRCUIT. Note that this board is not prepared to show the
recommendation of pattern and parts layout.
Circuit Diagram
V
AF OUT
+
RSSI OUT
T1
R2
2.4k
C6
82p
C7
0.01u
10
9
C5
3p
C4
100p
8
7
6
QUAD
DET
IF AMP
1
2
C1
0.01u
C9
10u
C8
0.01u
RSSI
3
C2
0.01u
4
5
C3
0.01u
R1
51
IF IN
List of Component
Items
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Ver.2010-06-24
Designation
Value
Items
Designation
Value
C1
0.01uF
Resistor
R1
51Ω
C2
0.01uF
Resistor
R2
2.4kΩ
C3
0.01uF
C4
100pF
Transformer
T1
4CJH
C5
3pF
C6
82pF
IC
IC1
NJM2549
C7
0.01uF
C8
0.01uF
C9
10uF
Note: IF transformer for detection, 4CJH(Sample No.:080293006) SAGAMI ELEC CO., LTD. (Japan)
- 10 -
NJM2549
PRINTED CIRCUIT BOARD
C3
C5
C4
R1
C2
C1
IC1
NJM
2549
R2
C6
C8
C7
Circuit Side View
Ground Side View
+
C9
Ver.2010-06-24
- 11 -
NJM2549
TYPICAL CHARACTERISTICS
[DC CHARACTERISTICS]
(Test Circuit 1, Ta = 25°C, V+ = 3V, No Signal, unless otherwise noted)
Current Consumption versus Supply Voltage
and Ambient Temperature
Current Consumption versus Temperature
and Supply Voltage
5
5
4
4
V+= 9.0V, 3.0V
3
25°C
-40°C
2
Iccq ( mA )
Iccq ( mA )
Ta= 85°C
3
2.7V
2
1
1
0
0
0
2
4
6
8
-50
10
Supply Voltage V + ( V )
0
50
100
Ambient Temperature Ta ( °C )
[IF AMP CHARACTERISTICS]
(Test Circuit 4, Ta = 25°C, V+ = 3V, IF IN = 10.7MHz / 20dBuV, No Modulation, unless otherwise noted)
IF AMP Gain versus IF Frequency
and Terminal Capacitance
IF AMP Gain versus IF Frequency
( Standard Circuit )
100
100
Ta= -40°C, 25°C, 85°C
C1=C2=C3
=1uF
80
60
GIF ( dB )
GIF ( dB )
80
40
20
60
10nF
3.3nF
1nF
40
20
0
0
0.1
1
10
100
0.1
IF Input Frequency ( MHz )
85
80
80
Ta= 85°C, 25°C
-40°C
GIF ( dB )
GIF ( dB )
85
70
100
V+= 9.0V, 3.0V, 2.7V
75
70
65
65
2
4
6
8
Supply Voltage V + ( V )
Ver.2010-06-24
10
IF AMP Gain versus Temperature
and Supply Voltage
IF AMP Gain versus Supply Voltage
and Ambient Temperature
75
1
IF Input Frequency ( MHz )
10
-50
0
50
100
Ambient Temperature Ta ( °C )
- 12 -
NJM2549
IF Output Level versus Temperature
and Supply Voltage
550
550
500
500
450
Ta= 85°C
25°C
-40°C
400
VO IF ( mVpp )
V O IF ( mVpp )
IF Output Level versus Supply Voltage
and Ambient Temperature
350
450
V+= 2.7V, 3.0V, 9.0V
400
350
300
300
2
4
6
8
10
-50
Supply Voltage V+ ( V )
IF Output Duty Ratio versus Supply Voltage
and Ambient Temperature
50
100
IF Output Duty Ratio versus Temperature
and Supply Voltage
60
60
Ta= -40°C
55
50
V+= 9.0V, 3.0V, 2.7V
55
85°C
25°C
DR IF ( % )
DR IF ( % )
0
Ambient Temperature Ta ( °C )
45
50
45
40
40
2
4
6
8
10
-50
Supply Voltage V + ( V )
0
50
100
Ambient Temperature Ta ( °C )
IF Output Current versus Supply Voltage
and Ambient Temperature
IF Output Current versus Temperature
and Supply Voltage
400
400
350
350
V+= 9.0V, 3.0V, 2.7V
300
25°C
250
IO IF ( uA )
IO IF ( uA )
Ta= -40°C
300
250
-40°C
200
200
2
4
6
Supply Voltage V + ( V )
Ver.2010-06-24
8
10
-50
0
50
100
Ambient Temperature Ta ( °C )
- 13 -
NJM2549
[DEMODULATED CHARACTERISTICS (S- Curve)]
(Test Circuit 1, Ta = 25°C, V+ = 3V, IF IN = 10.7MHz / 20dBuV, No Modulation, unless otherwise noted)
Demodulated DC Level versus Frequency
( S-curve, BW:99MHz, Supply Voltage )
5
10
4
8
3
6
2
VO DC ( V )
VO DC ( V )
Demodulated DC Level versus Frequency
( S-curve, BW:99MHz, Ambient Temperature )
Ta= -40°C
25°C
85°C
1
V+= 9.0V
3.0V
2.7V
4
2
Ta=
0
0
1
10
1
100
10
IF Input Frequency ( MHz )
Demodulated DC Level versus Frequency
( S-curve, BW:200kHz, Ambient Temperature )
Demodulated DC Level versus Frequency
( S-curve, BW:200kHz, Supply Voltage )
5
5
4
V+=9.0V
3
VO DC ( V )
VO DC ( V )
4
Ta= 85°C
25°C
-40°C
3
2
3.0V
2.7V
2
1
1
0
0
10.6
10.65
10.7
10.75
10.6
10.8
Demodulated DC Level versus Supply Voltage
( S-curve, Ambient Temperature )
10.7
10.75
10.8
Demodulated DC Level versus Temperature
( S-curve, Supply Voltage )
2.0
2.0
1.5
25°C
1.0
-40°C
V+= 9.0V
1.5
Ta= 85°C
VO DC ( V )
VO DC ( V )
10.65
IF Input Frequency ( MHz )
IF Input Frequency ( MHz )
3.0V, 2.7V
1.0
0.5
0.5
0.0
0.0
2
4
6
8
+
Supply Voltage V ( V )
Ver.2010-06-24
100
IF Input Frequency ( MHz )
10
-50
0
50
100
Ambient Temperature Ta ( °C )
- 14 -
NJM2549
[DEMODULATED CHARACTERISTICS (N- Curve)]
(Test Circuit 2, Ta = 25°C, V+ = 3V, IF IN = 10.7MHz / 20dBuV, No Modulation, unless otherwise noted)
Demodulated DC Level versus Frequency
( N-curve, BW:99MHz, Ambient Temperature )
Demodulated DC Level versus Frequency
( N-curve, BW:99MHz, Supply Voltage )
5
10
4
6
VO DC ( V )
3
VO DC ( V )
8
Ta= -40°C
25°C
85°C
2
1
V+= 9.0V
3.0V
2.7V
4
2
0
0
1
10
100
1
10
IF Input Frequency ( MHz )
Demodulated DC Level versus Frequency
( N-curve, BW:200kHz, Ambient Temperature )
5
4
4
Ta= 85°C, 25°C
V+= 9.0V
3.0V
2.7V
3
VO DC ( V )
VO DC ( V )
Demodulated DC Level versus Frequency
( N-curve, BW:200kHz, Supply Voltage )
5
3
2
-40°C
2
1
1
0
0
10.6
10.65
10.7
10.75
10.6
10.8
Demodulated DC Level versus Supply Voltage
( N-curve, Ambient Temperature )
10.7
10.75
10.8
Demodulated DC Level versus Temperature
( N-curve, Supply Voltage )
2.0
2.0
1.5
1.5
Ta= 85°C
25°C
-40°C
1.0
0.5
V+= 9.0V
VO DC ( V )
VO DC ( V )
10.65
IF Input Frequency ( MHz )
IF Input Frequency ( MHz )
1.0
3.0V, 2.7V
0.5
0.0
0.0
2
4
6
Supply Voltage V+ ( V )
Ver.2010-06-24
100
IF Input Frequency ( MHz )
8
10
-50
0
50
100
Ambient Temperature Ta ( °C )
- 15 -
NJM2549
[DEMODULATED CHARACTERISTICS (AC Level)]
(Test Circuit 1, Ta = 25°C, V+ = 3V, IF IN = 10.7MHz / 80dBuV, fdev = ± 10kHz, fmod = 1kHz,
unless otherwise noted)
S+N, N, AMR, SINAD versus IF Input Level
(Test Circuit 1)
S+N, N , AMR , SINAD versus IF Input Level
(Test Circuit 8)
-10
50
SINAD
-30
40
AMR
-40
30
N
-50
20
-60
-70
0
20
40
60
80
SINAD
50
-30
40
AMR
-40
10
-60
0
-70
20
10
N
0
0
100
20
40
60
80
100
IF Input Level ( dBuV )
Detuning Characteristic
( VOAC , THD, N-Curve )
4
1000
3
S-Curve
2
1
1
S-Curve ( V )
100
VOAC ( mVrms ) , THD ( % )
Circuit 1
VOAC
VOAC ( mVrms ) , THD ( % )
30
-50
Detuning Characteristic
( VOAC , THD, S-Curve )
10
60
-20
IF Input Level ( dBuV )
1000
70
SINAD ( dB )
60
S+N
Circuit 2
4
VOAC
100
10
3
N-Curve
1
2
N-Curve ( V )
-20
0
S+N, N, AMR ( dB )
S+N, N, AMR ( dB )
-10
70
SINAD ( dB )
S+N
0
1
THD
THD
0.1
0
10.55 10.6 10.65 10.7 10.75 10.8 10.85
IF Input Frequency ( MHz )
0.1
0
10.55 10.6 10.65 10.7 10.75 10.8 10.85
IF Input Frequency ( MHz )
Demodulated Signal Level versus
FM Modulation Frequency
175
Circuit 6
fdev= ±100kHz
150
VO AC ( mVrms )
125
100
75
50
25
Circuit 5
fdev= ±10kHz
0
1
10
100
1000
10000
FM Modulation Frequency fmod ( kHz )
Ver.2010-06-24
- 16 -
NJM2549
Demodulated Signal Level versus
Supply Voltage and Ambient Temperature
Demodulated Signal Level versus
Temperature and Supply Voltage
200
200
180
180
VO AC ( mVrms )
160
140
V+= 9.0V
160
V O AC ( mVrms )
Ta= 85°C
25°C
-40°C
3.0V, 2.7V
140
120
120
100
100
2
4
6
8
10
-50
Supply Voltage V+ ( V )
AF Output pin Bias Current versus
Supply Voltage and Ambient Temperature
50
100
AF Output pin Bias Current versus
Temperature and Supply Voltage
350
350
300
250
V+= 9.0V
300
Ta= 85°C
IO AF ( uA )
IO AF ( uA )
0
Ambient Temperature Ta ( °C )
25°C
200
250
3.0V
2.7V
200
-40°C
150
150
100
100
2
4
6
8
10
Supply Voltage V+ ( V )
-50
0
50
100
Ambient Temperature Ta ( °C )
Demodulated DC Level versus Frequency
and R2
3
R2= 4.7k
2.4k
1.2k
V O DC ( V )
2
680
360
180
1
0
10.6
10.65
10.7
10.75
10.8
IF Input Frequency ( MHz )
Ver.2010-06-24
- 17 -
NJM2549
[RSSI CHARACTERISTICS]
(Test Circuit 1, Ta = 25°C, V+ = 3V, IF IN = 10.7MHz / 80dBuV, fdev = ± 10kHz, fmod = 1kHz,
unless otherwise noted)
RSSI Output versus IF Input Level
and Ambient Temperature
2.5
RSSI Output versus IF Input Level
and Supply Voltage
2.5
Ta= 85°C
25°C
-40°C
2.0
V+= 9.0V
2.0
3.0V, 2.7V
1.5
VRSSI ( V )
V RSSI ( V )
1.5
1.0
0.5
1.0
0.5
0.0
0.0
0
20
40
60
80
100
0
IF Input Level ( dBuV )
20
40
60
80
100
IF Input Level ( dBuV )
RSSI Output versus Temperature
and IF Input Level
RSSI Output versus Supply Voltage
and IF Input Level
2.5
2.5
IF IN= 100dBuV
IF IN= 100dBuV
2.0
2.0
80dBuV
80dBuV
1.5
1.0
45dBuV
V RSSI ( V )
V RSSI ( V )
1.5
1.0
45dBuV
0.5
0.5
No input signal
0.0
2
4
6
8
10
Supply Voltage V + ( V )
No input signal
0.0
-50
0
50
100
Ambient Temperature Ta ( °C )
RSSI Output versus Supply Voltage Frequency
and IF Input Level
2.5
IF IN= 100dBuV
VRSSI ( V )
2.0
80dBuV
1.5
1.0
45dBuV
0.5
No input signal
0.0
0.1
1
10
100
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
IF Input Frequency ( MHz )
Ver.2010-06-24
- 18 -
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