ꢀ ꢁꢂ ꢃ ꢄ ꢅ ꢀ ꢁꢂ ꢃ ꢄ ꢆꢅ ꢀ ꢁꢂ ꢃ ꢄ ꢇꢅ ꢀ ꢁꢂ ꢃ ꢈꢅ ꢀꢁ ꢂꢃ ꢈꢆ
ꢀ ꢁꢂ ꢃ ꢈ ꢇꢅ ꢀ ꢁꢂ ꢃ ꢉ ꢅ ꢀ ꢁꢂ ꢃ ꢉ ꢆ ꢅ ꢀꢁ ꢂꢃ ꢉꢇ
ꢁ ꢊꢋꢌꢍꢊ ꢋ ꢎꢏ ꢐ ꢑ ꢎꢀꢌꢒ ꢓꢍꢔꢀ ꢊ ꢍꢎꢏ ꢆꢀ ꢒꢊ ꢓꢆꢁ ꢆꢕ ꢍ ꢁꢒ ꢑꢒ ꢎꢏ ꢖ
SLOS078J − NOVEMBER 1978 − REVISED SEPTEMBER 2004
APPLICATION INFORMATION
IC PREAMPLIFIER RESPONSE CHARACTERISTICS
25
Max Bass
Max
Treble
20
V
T
A
=
15 V
CC
15
10
= 25°C
5
0
−5
−10
−15
−20
−25
Min
Treble
Min Bass
20 40 100 200 400
1 k 2 k 4 k 10 k 20 k
f − Frequency − Hz
220 kΩ
0.00375 µF
0.01 µF
0.003 µF
10 kΩ
0.03 µF
0.03 µF
27 kΩ
MIN
MIN
100 kΩ
Treble
100 kΩ
Bass
MAX
V
CC+
V
CC+
10 kΩ 3.3 kΩ
MAX
+
+
100 Ω
Input
1 µF
TL062
−
TL062
−
Output
V
CC−
V
CC−
0.003 µF
100 Ω
10 kΩ
Balance
10 pF
10 pF
+
75 µF
5 kΩ
Gain
47 kΩ
+
68 kΩ
50 pF
47 µF
Figure 27. IC Preamplifier
19
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
