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TA8258HQ Datasheet(PDF) 2 Page - Toshiba Semiconductor |
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TA8258HQ Datasheet(HTML) 2 Page - Toshiba Semiconductor |
2 / 13 page TA8258HQ 2006-10-23 2 Block Diagram Application Information 1. Voltage gain The closed loop voltage gain is determined by R1, R2. = 34 (dB) When R3 = 220 Ω GV ∼− 30 (dB) is given. Toshiba has confirmed that the GV (min) is approximately 28 (dB) on a regular printed circuit board. However, if the value of R2 + R3 is larger, the feedback voltage increases and oscillation will start. Determine the value of R2 + R3 to ensure proper startup behavior under actual usage conditions. Ω Ω + Ω = 400 400 k 20 og 20 λ (dB) 2 R R2 1 R og 20 V G + =λ (dB) R R R R R og 20 G 3 2 3 2 1 V + + + =λ 4/2 R1 20 k Ω R2 400 Ω 5/1 7/12 Output Input Figure 1 4/2 R1 20 k Ω R2 400 Ω 5/1 7/12 Output Input Figure 2 R3 6 9 IN1 Ripple Filter VCC IN1 VCC IN2 4 7 RL 20 k Ω 3 12 10 RL 2 IN2 AMP1 AMP2 OUT1 OUT2 PW-GND Pre-GND 5 400 Ω 1 20 k Ω 400 Ω 8 11 R C C R Mute. TC Mute |
Similar Part No. - TA8258HQ_06 |
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Similar Description - TA8258HQ_06 |
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