NTE973D
Integrated Circuit
Double Balanced Modulator/Demodulator
Description:
The NTE973D is a balanced modulatior/demodulator in a 14鈥揕ead DIP type package designed for
use where the output voltage is a product of an input voltage (signal) and a switching function (carrier).
Typical applications include suppressed carrier and amplitude modulation, synchronous detection,
FM detection, phase detection, and chopper applications.
Features:
D
Excellent Carrier Suppression:
65dB typ @ 0.5MHz
50db typ @ 10MHz
D
Adjustable Gain and Signal Handling
D
Balanced Inputs and Outputs
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Applied Voltage,
鈭哣
(V
6
鈥揤
7
, V
8
鈥揤
1
, V
9
鈥揤
7
, V
9
鈥揤
8
, V
7
鈥揤
4
, V
7
鈥揤
1
, V
8
鈥揤
4
, V
6
鈥揤
8
, V
2
鈥揤
5
, V
3
鈥揤
5
) . . . . . . . . . 30V
Differential Input Signal, V
7
鈥揤
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.0V
Differential Input Signal, V
4
鈥揤
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵(5
+ I
5
R
e
) V
Maximum Bias Current, I
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Operating Temperature Range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0擄 to +70擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Thermal Resistance, Junction鈥搕o鈥揂mbient, R
thJA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100擄C/W
Electrical Characteristics:
Parameter
Carrier Feedthrough
(V
CC
= 12V, V
EE
= 鈥?V, I
5
= 1mA, R
L
= 3.9k鈩? R
e
= 1k鈩? T
A
= +25擄C,
Note 1 unless otherwise specified)
Symbol
V
CFT
Test Conditions
V
C
= 60mV
rms
sine wave
and offset adjusted to
zero
V
C
= 300mV
P鈥揚
square
wave, f
C
= 1kHz
f
C
= 1kHz
f
C
= 10MHz
Offset adjusted to zero
Offset not adjusted
f
C
= 500kHz
f
C
= 10MHz
Min
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
40
鈥?/div>
Typ
40
140
0.04
20
65
50k
Max
鈥?/div>
鈥?/div>
0.4
200
鈥?/div>
鈥?/div>
Unit
碌V
rms
碌V
rms
mV
rms
mV
rms
dB
dB
Carrier Suppression
V
CS
f
S
= 10kHz, 300mV
rms
,
60mV
rms
sine wave
Note 1. All input and output characteristics are single鈥揺nded unless otherwise specified)
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