TA8258HQ Toshiba, TA8258HQ Datasheet - Page 2

• Manufacturer Part Number: TA8258HQ
• Manufacturer: Toshiba

Specifications of TA8258HQ

• No. Of Channels: 2
• Package: HZIP 12-P-1.78
• Recommended Vcc (v): 37
• Rl=2 Ohm: -
• Rl=4 Ohm: -
• Rl=8 Ohm: 20W x 2
• Features/built-in Functions: 2 channels, muting function, output shorting (AC)/thermal shutdown protection circuit.
• Operating Voltage (v): 15 to 42

Block Diagram
Application Information
1. Voltage gain
The closed loop voltage gain is determined by R
if the value of R
R
2
Toshiba has confirmed that the G
+ R
G
G
When R
G
is given.
3
V
V
V
to ensure proper startup behavior under actual usage conditions.
IN1
IN2
=
∼ − 30 (dB)
=
= 34 (dB)
=
20
20l
20
l
og
3
l
og
2
og
= 220 Ω
R
+ R
1
20
R
R
+
2
1
3
R2
R
k
+
is larger, the feedback voltage increases and oscillation will start. Determine the value of
400
Ω
2
R
(dB)
+
4
5
3
1
2 IN2
+
2
400
R
Ω
IN1
+
Pre-GND
400 Ω
400 Ω
3
R
3
Ω
Ripple Filter
Mute. TC
(dB)
V
8
6
(min) is approximately 28 (dB) on a regular printed circuit board. However,
AMP1
AMP2
20 kΩ
20 kΩ
1
Mute
, R
V
2
11
9
CC
PW-GND
2
.
OUT1
OUT2
Input
Input
10
12
7
R
R
C
C
R
3
4/2
5/1
4/2
5/1
R
R
L
L
400 Ω
400 Ω
Figure 1
Figure 2
R
R
2
2
V
20 kΩ
20 kΩ
CC
R
R
1
1
TA8258HQ
2004-04-06
7/12
7/12
Output
Output