NTE704
Integrated Circuit
TV Sound, IF Amp
Features & Applications:
D
Exceptionally High Gain: Power Gain at 4.5Hz 75dB typ.
D
Excellent Limiting Characteristics: Input Limiting Voltage (Knee) = 300
V at 4.5MHz
D
Excellent AM Rejection:
>
50dB at 4.5MHz
D
High AudioVoltage Recovery: 20mV Typ at 4.5MHz, 25kHz Deviation
D
Wide Frequency Capability: 100kHz to
>
20MHz
D
Comprehensive Circuit Functions:
IF Amplifier
AM and Noise Limiter
FM Detector
Audio PreAmplifier
Absolute Maximum Ratings: (T
A
= +25
C unless otherwise specified)
Maximum InputSignal Voltage (Between Pin1 and Pin2)
3V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Device Dissipation
300mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Minimum DC Supply Voltage (V
CC
)
5.5V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
55
to +125
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
65
to +150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (T
A
= +25
C unless otherwise specifid)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Total Device Dissipation
P
T
Note 1
V
CC
= 6V
73
90
110
mW
V
CC
= 7.5V
106
120
150
mW
V
CC
= 10V
165
190
230
mW
Voltage Gain
A
f = 1Mc/s,
V
CC
= 6V
60
66
dB
Note 2
V
CC
= 7.5V
65
70
dB
V
CC
= 10V
65
71
dB
V
CC
= 7.5V,
f = 4.5Mc/s
60
67
dB
Note 2
f = 10.7Mc/s
55
60
dB
Note 1. Total current drain may be determined by dividing P
T
by V
CC
.
Note 2. Recommended minimum DC supply voltage (V
CC
) is 5.5V. Nominal load current flowing into
Pin5 is 1.5mA at 7.5V.
Electrical Characteristics (Cont'd): (T
A
= +25
C unless otherwise specifid)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Parallel Input Resistance
R
IN
f = 4.5Mc/s, V
CC
= 7.5V
3
k
Parallel Input Capacitance
C
IN
7
pF
Parallel Output Resistance
R
OUT
f = 4.5Mc/s, V
CC
= 7.5V
31.5
k
Parallel Output Capacitance
C
OUT
4.2
pF
Noise Figure
NF
f = 4.5Mc/s, V
CC
= 7.5V
8.7
dB
Input Limiting Voltage (Knee)
V
i(lim)
f = 4.5Mc/s, V
CC
= 7.5V
300
400
V
Recovered AF
V
o(af)
f = 4.5Mc/s
V
CC
= 6V
155
mV
V
CC
= 7.5V
135
188
mV
V
CC
= 10V
220
mV
Amplitude Modulation Rejection
AMR
f = 4.5Mc/s, V
CC
= 7.5V
50
dB
Discriminator Output Resistance
R
O
(dics) f = 4.5Mc/s, V
CC
= 7.5V
60
Total Harmonic Distortion
THD
f = 4.5Mc/s, V
CC
= 7.5V
1.8
%
Pin Connection Diagram
(Top View)
10
9
8
5
4
3
2
7
6
1
Bypass
Input 4.5MH
Z
Primary Discrimin
Transformer/V
CC
(+)
Secondary Discrim
Transformer
Secondary Discrimin
Transformer
Primary Discrimin
Transformer
Tertiary Winding
GND
Input 4.5MH
Z
Output
4
.018 (0.45) Dia Typ
.335 (8.52) Dia Max
.115 (2.92)
.230 (5.84) Dia
.260
(6.6)
Max
.500
(12.7)
Min
.370
(9.4)
Max
1
2
3
4
5
6
7
8
9
10
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