TA8225HQ Toshiba, TA8225HQ Datasheet - Page 3

• Manufacturer Part Number: TA8225HQ
• Manufacturer: Toshiba

Specifications of TA8225HQ

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 45x1@2OhmW
• Audio Amplifier Function: Speaker
• Single Supply Voltage (typ): 12/15V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Power Dissipation: 50W
• Rail/rail I/o Type: No
• Single Supply Voltage (min): 9V
• Single Supply Voltage (max): 18V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -30C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 17
• Package Type: HZIP
• No. Of Channels: 1
• Package: HZIP 17-P-2.00
• Recommended Vcc (v): 13.2
• Rl=2 Ohm: 40W x 1
• Rl=4 Ohm: 23W x 1
• Rl=8 Ohm: -
• Features/built-in Functions: Standby switch
• Operating Voltage (v): 9 to 18
• Lead Free Status / Rohs Status: Compliant

2. Preventive measure against oscillation
3. Pop noise
For preventing the oscillation, it is advisable to use C
characteristic fluctuation of the temperature and the frequency.
The condenser (C
feedback signal from an output stage.
The resistance R to be series applied to C
oscillation allowance.
Since the oscillation allowance is varied according to the causes described below, perform the temperature test
to check the oscillation allowance.
In case of its use with the voltage gain G
because the phase−inversion is caused by the high frequency resulting in making the oscillation liable
generated.
A pop noise generated when the power source is turned on
depends on rise times of the in−phase side output ((11)pin) and
the negative−phase side output ((16)pin), that is, output offset
voltage.
The following two points may be pointed out as causes for
generation the output offset voltage:
Especially, the factor (2) relates to the pop noise level.
(1) In−phase and negative−phase NF capacitor charging times
(2) Input offset voltage
(1) Voltage gain to be used (G
(3) Kind of condenser
6
) between input and GND is effective for preventing oscillacion which is generated with
V
setting)
V
4
reduced or with the feedback amount increased, care must be taken
is effective for phase correction of high frequency, and improves the
(2) Capacity value of condenser
(4) Layout of printed board
4
3
, the condenser of polyester film having small
TA8225HQ/LQ
2006-04-28