NTE NTE973D Datasheet

NTE973D

Integrated Circuit

Double Balanced Modulator/Demodulator

Description:

The NTE973D is a balanced modulatior/demodulator in a 14–Lead 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:

(TA = +25°C unless otherwise specified)

Applied Voltage, ∆V

(V
Differential Input Signal, V7–V
Differential Input Signal, V
Maximum Bias Current, I
Operating Temperature Range, T
Storage Temperature Range, T

, V8–V1, V9–V7, V9–V8, V7–V4, V7–V1, V8–V4, V6–V8, V2–V5, V3–V5) 30V. . . . . . . . .

6–V7

8

4–V1

5

A

stg

Thermal Resistance, Junction–to–Ambient, R

Electrical Characteristics:

(VCC = 12V, VEE = –8V, I5 = 1mA, RL = 3.9kΩ, Re = 1kΩ, TA = +25°C,
Note 1 unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Carrier Feedthrough V

Carrier Suppression V

CFT

VC = 60mV
and offset adjusted to
zero

VC = 300mV
wave, fC = 1kHz

fS = 10kHz, 300mV

CS

60mV

rms

thJA

sine wave

rms

P–P

sine wave

square

rms

±(5 + I5Re) V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

fC = 1kHz – 40 – µV
fC = 10MHz – 140 – µV
Offset adjusted to zero – 0.04 0.4 mV
Offset not adjusted – 20 200 mV
fC = 500kHz 40 65 – dB

,

fC = 10MHz – 50k – dB

+5.0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

rms

rms

rms
rms

Note 1. All input and output characteristics are single–ended unless otherwise specified)

Electrical Characteristics (Cont’d): (VCC = 12V, VEE = –8V, I5 = 1mA, RL = 3.9kΩ, Re = 1kΩ,

T

= +25°C, Note 1 unless otherwise specified)

A

Parameter Symbol Test Conditions Min Typ Max Unit

Transadmittance Bandwidth (Magnitude) BW

Signal Gain A

|I

|TC

|TC

r
c
r

c

bS

I

bC

ioS

ioC

CC

I

EE

Single–Ended Input Impedance,

Signal Port

Single–Ended Output Impedance,

Signal Port

Input Bias Current I

Input Offset Current |I

Average Temperature Coefficient of

Input Offset Current
Output Offset Current |Ioo| I6 – I
Average Temperature Coefficient of

Output Offset Current
Common–Mode Input Swing CMV Signal Port, fS = 1kHz – 5.0 – V
Common–Mode Gain ACM Signal Port, fS = 1kHz, |VC| = 0.5V – –85 – dB
Common–Mode Quiescent Output Voltage V
Differential Output Voltage Swing Capability V
Power Supply Current I

DC Power Dissipation P

Carrier Input Port, RL = 50Ω, VC = 60mV

3dB

wave, f

= 1kHz, 300mV

S

Signal Input Port, RL = 50Ω, VS = 300mV
wave, |V

VS = 100mV

VS

Parallel Input Resistance, f = 5MHz – 200 – kΩ

ip

Parallel Input Capacitance, f = 5MHz – 2.0 – pF

ip

Parallel Output Resistance, f = 10MHz – 40 – kΩ

op

Parallel Output Capacitance, f = 10MHz – 5.0 – pF

op

IbS = (I1 + I4) / 2 – 12 30 µA
IbC = (I7 + I8) / 2 – 12 30 µA

| I

ioS

| IioC = I7 – I

| TA = –55° to +125°C – 2.0 – nA/°C

Iio

| TA = –55° to +125°C – 90 – nA/°C

Ioo

Pin6 or Pin9 – 8.0 – V

out
out

I6 + I
I

10

D

= I1 – I

9

9

| = 0.5V

C

, f = 1kHz, |VC| = 0.5V 2.5 3.5 – V/V

rms

4

8

sine wave

rms

rms

rms

sine

sine

– 300 – MHz

– 80 – MHz

– 0.7 7.0 µA
– 0.7 7.0 µA

– 14 80 µA

– 8.0 – V
– 2.0 4.0 mA
– 3.0 5.0 mA
– 33 – mW

P–P

P–P
P–P

Note 1. All input and output characteristics are single–ended unless otherwise specified)

Pin Connection Diagram

(+) Signal Input

Gain Adjust
Gain Adjust

(–) Signal Input

Bias

(+) Output

N.C.

1
2

3
4
5
6
7

V (–)

14

N.C.

13

(–) Output

12

N.C.

11

(–) Carrier Input

10

N.C.

9

(+) Carrier Input

8