TB2926HQ Toshiba, TB2926HQ Datasheet - Page 4
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TB2926HQ
Manufacturer Part Number
TB2926HQ
Description
Manufacturer
Toshiba
Datasheet
1.TB2926HQ.pdf
(18 pages)
Specifications of TB2926HQ
No. Of Channels
4
Package
HZIP 25-P-1.00F
Recommended Vcc (v)
13.2
Rl=2 Ohm
Not Supported
Rl=4 Ohm
43W x 4
Rl=8 Ohm
-
Features/built-in Functions
4 BTL channels, standby switch, mute, low-RON BiCD process, DC offset detection
Operating Voltage (v)
9 to 18
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TB2926HQ
Manufacturer:
TOSHIBA/东芝
Quantity:
20 000
2. Mute Function
The audio mute function is enabled by setting pin 22 Low. R
mute function. The time constant affects pop noise generated when power or the mute function is turned on
or off; thus, it must be determined on a per-application basis. (Refer to Figures 4 and 5.)
The value of the external pull-up resistor is determined, based on pop noise value.
For example, when the control voltage is changed from 5 V to 3.3 V, the pull-up resistor should be:
5 V
R
1
3.3 V/5 V × 47 kΩ = 31 kΩ
Figure 3 Mute Function
C
4
(pin 22)
22
1 kΩ
Mute On/Off
control
4
Figure 4 Mute Attenuation − V
1
−100
−120
−20
−40
−60
−80
and C
20
0
0
V CC = 13.2 V
f = 1 kHz
R L = 4 Ω
V O = 20dBm
BW = 400 Hz to 30 kHz
4
determine the time constant of the
0.5
Pin 22 control voltage: V
1
ATT – V
1.5
MUTE
MUTE
2
TB2926HQ
MUTE
2006-11-27
(V)
2.5
(V)
3