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CA3094 Datasheet PDF : 14 Pages
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CA3094, CA3094A, CA3094B
Typical Applications (Continued)
TREBLE
“BOOST”
“CUT”
(CW) 15kΩ (CCW)
0.01µF
820Ω
D1 - D4 1N5391
V+
0.12µF
1800Ω
68Ω
0.001µF
0.001µF
5600Ω
5µF
+
220Ω
1W
220Ω
1W
15µF
+
Q2
2N6292
INPUT
C1
R1
(NOTES
32, 33)
7
VOLUME
2
+
6.8pF
1
30Ω †
27Ω
Q1
Q3
CA3094B
8
3
-
8 LEAD
6 TO-5
4
5
1Ω
0.47
680
µF
kΩ
THERMAL
COMPENSATION
NETWORK †
+
4700µF
2N6292
+
V-
4700
µF
0.47Ω
0.47Ω
2N6107
330Ω
47Ω
0.2µF
D1
D2
D3
D4
3µH
120V
60Hz
STANCOR
NO. P-8609
OR EQUIVALENT
(120VAC TO
26.8VCT AT 1A)
22Ω
RL
8Ω
R2
1.8MΩ
(NOTES 32, 33)
†OPTIONAL THERMAL
COMPENSATION
NETWORK
25µF 1kΩ
0.02µF
+
“BOOST”100kΩ “CUT” 10kΩ
(CW)
(CCW)
BASS
C2
0.47µF
JUMPER (NOTES 32, 33)
8.2Ω
1N5391
TYPICAL PERFORMANCE DATA FOR 12W AUDIO AMPLIFIER CIRCUIT
Power Output (8Ω load, Tone Control Set at “Flat”)
Music (at 5% THD, Regulated Supply). . . . . . . . . . . . . . . . . . 15W
Continuous (at 0.2% IMD, 60Hz and 2kHz
Mixed in a 4:1 Ratio, Unregulated Supply)
See Figure 8 in AN6048 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12W
Total Harmonic Distortion
At 1W, Unregulated Supply . . . . . . . . . . . . . . . . . . . . . . . . . 0.05%
At 12W, Unregulated Supply . . . . . . . . . . . . . . . . . . . . . . . .0.57%
Voltage Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40dB
Hum and Noise (Below Continuous Power Output). . . . . . . . . .83dB
Input Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250kΩ
Tone Control Range . . . . . . . . . . . . . . . . . .See Figure 9 in AN6048
NOTES:
32. For standard input: Short C2; R1 = 250kΩ, C1 = 0.047µF; remove
R2.
33. For ceramic cartridge input: C1 = 0.0047µF, R1 = 2.5MΩ, remove
jumper from C2; leave R2.
FIGURE 22. 12W AUDIO AMPLIFIER CIRCUIT FEATURING TRUE COMPLEMENTARY SYMMETRY OUTPUT STAGE WITH CA3094 IN
DRIVER STAGE
3-11
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