NTE1780
Integrated Circuit
2 Channel Tone/DC Volume/Balance Control Circuit
Description:
The NTE1780 is an integrated circuit in a 12鈥揕ead SIP type package designed for 2鈥揷hannel volume
and tone control circuits.
Features:
D
Easier Compact Set Design
D
Functions Are: 2鈥揅hannel Bass, Treble Control Circuit
D
Balance Control Circuit
D
DC Volume Control Circuit (Volume Control
w
/Physiological Characteristics)
D
All Functions Enable DC Controllable
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4V
Circuit Voltage, V
1, 4, 5, 6鈥?
, V
8, 9, 11, 12鈥?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0, V
2鈥?
Supply Current, I
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64mA
Circuit Current, I
3
, I
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0mA
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 920mW
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +70擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Electrical Characteristics:
(T
A
= +25C, V
CC
= 12V unless otherwise specified)
Parameter
Circuit Current
Circuit Voltage
Volume Circuit
Maximum Output
Channel Balance (Note 1)
Volume Starting Voltage
Residual Tone Level
(Volume Minimum)
Balance Control Circuit
Attenuation (R鈥揷h)
A
ttBR
f = 1kHz, V
i
= 400mV
rms
, V
12
= V
CC
,
V
5
= V
8
= V
CC
/2, V
OR1
: V
1
= (5.5/12),
V
CC
(VR鈥?), V
OR2
: V
1
= 0V, Note 3
鈥?2
鈥?5
鈥?/div>
dB
V
O
max
CB
V
(st)
V
min.
f = 1kHz, V
i
= 400mV
rms
, V
12
= V
CC
,
V
1
= V
5
= V
8
= V
CC
/2
f = 1kHz, V
i
= 400mV
rms
, V
12
= VR,
V
1
= V
5
= V
8
= V
CC
/2, Note 2
f = 1kHz, V
i
= 400mV
rms
, V
12
= 0,
V
1
= V
5
= V
8
= V
CC
/2
190
鈥?/div>
0.40
鈥?/div>
230
+0.2
0.60
25
270
鹵1.0
0.90
50
V
碌V
rms
mV
rms
Symbol
I
tot
V
3, 10鈥?
V
CC
= 12V
V
i
= No Signal, V
12
= V
CC
, V
1
= V
5
= V
8
= V
CC
/2
Test Conditions
Min
24
8.0
Typ
38
8.4
Max
50
8.8
Unit
mA
V
Note 1. Deviation between R and L鈥揷h for maximum output.
Note 2. V
12
voltage when output voltage is 0.1mV
rms
.
Note 3. A
ttBR
: V
OR2
/V
OR1
1
2
3
