TB2912HQ Toshiba, TB2912HQ Datasheet - Page 6

• Manufacturer Part Number: TB2912HQ
• Manufacturer: Toshiba

Specifications of TB2912HQ

• No. Of Channels: 4
• Package: HZIP 25-P-1.00F
• Recommended Vcc (v): 13.2
• Rl=2 Ohm: 70W x 4
• Rl=4 Ohm: 43W x 4
• Rl=8 Ohm: -
• Features/built-in Functions: 4 BTL channels, standby switch, mute, BiCD process, I2C self-diagnosis, tweeter diagnostics, low standby current
• Operating Voltage (v): 9 to 18

6. Explanation for Self Diagnosis Via I
Note 4: Self mute circuit is included on chip and is in independent from I
Note 5: Auto Increment is available.
Bit7
Bit7
Bit7
Bit7
⎯
⎯
⎯
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
1
【Slave Address】
【WRITE】
•
•
•
(1)
Sub address
Control byte1 (01H) : Initial statement = All “0”
Control byte2 (02H) : Initial statement = All “0”
Self mute operating voltage is V
If control byte 1 is chosen by sub address, it is not necessary to send byte 2 in cases when both byte 1 and
2 are to be written.
Ex) In case of sub address = byte1 chosen:
Bus map
Bit6
Bit6
Bit6
Bit6
⎯
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
1
Sub address byte 1 → byte 1 writing → Sub address byte 2 → byte 2 writing: available
Sub address byte 1 → byte 1 writing ---------------------------- → byte 2 writing: available
Bit5
Bit5
Bit5
Bit5
⎯
⎯
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
Bit4
Bit4
Bit4
Bit4
⎯
⎯
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
1
Bit3
Bit3
Bit3
Bit3
⎯
⎯
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
1
CC
= 7.8 V
Bit2
Bit2
Bit2
Bit2
⎯
⎯
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
2
C
Bit1
Bit1
Bit1
6
Bit1
⎯
⎯
0
1
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
Bit0
Bit0
Bit0
Bit0
⎯
⎯
1
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
⎯
0
1
Page Mode (auto increment) OFF
Page Mode (auto increment) ON
Control Byte1
Control Byte2
Clip Det 1% to 10% change
R-ch Muting off (play)
Fch Muting off (play)
R-ch Gain 26dB to 12dB
Fch Gain 26dB to 12dB
Offset Det Enable
Diag Cycle Enable
Turn-on Select (normal/repeatedly)
R-ch Iccq become Lower
Fch Iccq become Lower
Current Detection Enable
Line Drive Diag
Stand By OFF (play)
Clip Det Pin change to Offset Det
Fast mute ON/OFF
Current Detection. Level change from 500 mA
(max) to 300 mA (max)
Write Mode
Read Mode
2
C bus stage.
Details
Details
Function
Function
TB2912HQ
2006-04-28
Hex
01H
02H
D8H
Hex