tb2946hq TOSHIBA Semiconductor CORPORATION, tb2946hq Datasheet - Page 9

• Manufacturer Part Number: tb2946hq
• Description: 49 W ? 4-ch Btl Audio Power Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Test Circuit
Components in the test circuit are only used to determine the device characteristics.
It is not guaranteed that the system will work properly with these components.
Mute attenuation
Upper cut-off frequency
DC offset threshold voltage
Layer short detection impedance
Pin 25 saturation voltage
(at each detector ON condition)
Characteristics
Mute
Play
5 V
C1: 0.22 μF
C1: 0.22 μF
C1: 0.22 μF
C1: 0.22 μF
R1: 47 kΩ
C6: 1 μF
11
12
13
15
16
14
22 Mute
4 Stby
IN1
IN2
IN3
IN4
Pre-GND
AC-GND
R half-short
P25-Sat
Symbol
Ripple
V
ATT M
off-set
10
F
th
Circuit
TAB
Test
1
⎯
⎯
⎯
⎯
⎯
V
9
MUTE: ON、DIN_AUDIO
V
G
Rpull-up = 10 kΩ, +V = 5.0 V
Out(+)-Out(-)
Rpull-up = 10 kΩ, +V = 5.0 V
channel (+) or (-) shorted to
GND, when between R
impedance output to GND.
Rpull-up = 10 kΩ, +V = 5.0 V
(pin 25 = low)
CC2
OUT
6
V
Offset/short
= 26dB, −3dB
= 7.75 Vrms → Mute: OFF
V
Test Condition
20
CC1
17
18
19
21
24
23
25
9
8
7
5
2
3
Out1 (+)
PW-GND1
Out1 (−)
Out2 (+)
PW-GND2
Out2 (−)
Out3 (+)
PW-GND3
Out3 (−)
Out4 (+)
PW-GND4
Out4 (−)
s
±1.0
Min
85
⎯
⎯
⎯
R
R
R
R
L
L
L
L
= 4 ohm
= 4 ohm
= 4 ohm
= 4 ohm
Typ.
±1.5
100
250
100
+B
3.3
TB2946HQ
2009-01-29
Max
±2.0
500
⎯
⎯
⎯
Unit
kHz
dB
V
Ω
V