ta8259h TOSHIBA Semiconductor CORPORATION, ta8259h Datasheet - Page 3

• Manufacturer Part Number: ta8259h
• Description: Max Power 37 W Btl X 4ch Audio Power Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Caution and Application Method
1. Voltage gain adjustment
This IC has no NF (negative feedback) terminals. Therefore, the voltage gain can't adjusted, but it makes
the device a space and total costs saver.
Therefore, the total voltage gain is decided by expression below.
The voltage gain of Amp. 1
The voltage gain of Amp. 2A, B
The voltage gain of BLT Connection : G
G
V
= G
V1
+ G
V2
+ G
V (BTL)
= 8 + 20 + 6 = 34dB
Figure 1 Block diagram
(description is made only on the single channel)
: G
: G
V1
V2
V (BTL)
= 8dB
= 20dB
3
= 6dB
2002-03-05
TA8259H