NJM1496
DOUBLE BALANCED MODULATION / DEMODULATOR
■
GENERAL DESCRIPTION
The
NJM1496
is a double balanced modulator-demodulator which
produces an output voltage proportional to hte product of an input
(signal) voltage and a switching (carrier) signal. Typical applications
include suppressed carrier modulation, amplitude modulation,
synchronous detection, FM or PM detection, broadband frequency
doubling and chopping.
■
FEATURES
●
Excellent carrier suppression
65dB typical at 0.5MHz
50dB typical at 10MHz
●
Adjustable gain and signal handling
●
Fully balanced inputs and outputs
●
High Common Mode Rejection 85dB Typ.
●
Package Outline DIP14, DMP14, SSOP14
●
Bipolar Technology
■
APPLICATION
●
Balanced Modulation
●
Synchronous Detection
●
FM Detection
●
Phase Detection
●
Sampling
■
PIN CONFIGURATION
■
PACKAGE OUTLINE
NJM1496D
NJM1496M
NJM1496V
NJM1496D
NJM1496M
NJM1496V
■
EQUIVALENT CIRCUIT
Ver.2003-12-09
-1-
NJM1496
■
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Applied Voltage
Carrier Input Voltage
Signal Input Voltage
Input Signal
Bias Current (I
5
)
Power Dissipation
RATINGS
30 (Applied Pins 6-8, 12-8, 6-10, 12-10, 10-1, 8-1, 10-4, 8-4, 2-5, 3-5)
±5 (Applied Pins 8-10)
±(5+I
5
, Re) (Applied Pins 1-4)
5
10
(DIP14)
570
(DMP14) 300
(SSOP14) 300
-20 to +75
-40 to +125
(T
a
=25°C)
UNIT
V
V
V
V
mA
mW
mW
mW
°C
°C
Operating Temperature Range
Storage Temperature Range
■
ELECTRICAL CHARACTERISTICS
PARAMETER
Single-Ended Input Impedance
Parallel Input Resistance
Parallel Input Capacitance
Single-Ended Output Impedance
Parallel Output Resistance
Parallel Output Capacitance
Input Bias Current
I
bs
=I
1
+I
4
/ 2
I
bs
=I
8
+I
10
/ 2
Input Offset Current
I
ios
=I
1
- I
4
I
ios
=I
8
- I
10
Average Temperature Coefficient of
Input Offset Current
Output Offset Current
(I
6
- I
12
)
Average Temperature Coefficient of
Output Offset Current
Output Voltage
Operating Current
(I
6
+ I
12
)
I
14
DC Power Dissipation
DC characteristics (V
+
=12V, V
-
=-8V, I
5
=1.0mA, R
L
=3.9kΩ, R
e
=1.0kΩ, T
a
=25°C)
SYMBOL
R
ip
C
ip
R
op
C
op
I
bs
I
bc
I
ios
I
ioc
∆I
io
I
OC
∆I
OC
V
O
I
D+
I
D-
P
D
TEST CONDITION
Signal Port, f =5.0MHz
Signal Port, f =5.0MHz
f =10MHz
f =10MHz
MIN.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP.
200
2.0
40
5.0
12
12
0.7
0.7
2.0
15
90
8.0
2.0
3.0
33
MAX.
-
-
-
-
30
30
7
7
-
80
-
-
4.0
5.0
-
UNIT
kΩ
pF
kΩ
pF
µA
µA
µA
µA
nA / °C
µA
nA / °C
V
mA
mA
mW
-2-
Ver.2003-12-09
NJM1496
■
ELECTRICAL CHARACTERISTICS
PARAMETER
Carrier Feedthrough
V
CFT
V
CFT
AC characteristics (V
+
=12V, V
-
=-8V, I
5
=1.0mA, R
L
=2.9kΩ, R
e
=1.0kΩ, T
a
=25°C)
SYMBOL
TEST CONDITION
V
C
=60mVrms sine wave
offset adjusted
f
C
=1.0kHz
f
C
=10MHz
V
C
=300mV
P-P
square wave
f
C
=1.0kHz
offset adjusted
offset not adjusted
f
S
=10kHz, 300mVrms sine wave
offset adjusted
f
C
=500kHz, 60mVrms sine wave
f
C
=10MHz, 60mVrms sine wave
V
C
=60mVrms sine wave
f
S
=1.0kHz, 300mVrms sine wave
V
S
=300mVrms sine wave
│V
C
│=0.5Vdc
V
S
=100mVrms, f
S
=1.0kHz
│V
C
│=0.5Vdc
f
S
=1.0kHz
f
S
=1.0kHz,
│V
C
│=0.5Vdc
MIN.
TYP.
MAX.
UNIT
-
-
40
140
-
-
µVrms
µVrms
V
CFT
V
CFT
Carrier Suppression
V
CS
V
CS
Transadmittance Bandwidth
(R
L
=50Ω)
Carrier Input Port
Signal Input Port
Voltage Gain, Signal Channel
AV
S
Signal Port Common Mode Input Voltage
Range
Signal Port Common Mode Rejection Ratio
Differential Output Swing Capability
CM
V
ACM
DV
out
-
-
0.04
20
0.4
200
mVrms
mVrms
40
-
65
50
-
-
dB
dB
BW 3dB
BW 3dB
-
300
80
-
MHz
MHz
2.5
-
-
-
3.5
5.0
-85
8.0
-
-
-
-
V/V
V
P-P
dB
V
P-P
■
TEST CIRCUIT
Ver.2003-12-09
-3-
NJM1496
■
TYPICAL CHARACTERISTICS
Carrier Suppression
Carrier Suppression
Carrier Feedthrough
Sideband Output
-4-
Ver.2003-12-09
NJM1496
■
TYPICAL APPLICATIONS
AM Modulator Circuit
Product Detector (+12V DC Single Supply)
[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.
Ver.2003-12-09
-5-
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