TB2932HQ Toshiba, TB2932HQ Datasheet - Page 3

• Manufacturer Part Number: TB2932HQ
• Manufacturer: Toshiba

Specifications of TB2932HQ

• 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, internal standby/mute control, BiCD process, I2C self-diagnosis, tweeter diagnostics
• Operating Voltage (v): 9 to 18

Caution and Application Information (description is made referring only on the
single channel.)
External Component Values
1) The hardware stand-by state
2) The software stand-by state
3) The IC operation condition
Note 3: In case of the recommended value not used.
1. Fast Mute Mode
2. IC start up procedure
Component
Therefore, before communicating in I2C BUS, it impresses voltage on the ClipDet terminal once and VDD must
be started.
VDD stands up and after the I2C BUS communication becomes possible, because this terminal functions as the
ClipDet terminal, only in IC start-up, it requests sequence setting to impress potential.
Incidentally, because it touches much more by the separate section about the conduct of the ClipDet terminal, .
When impressing the external voltage (5V/3.3V) on the ClipDet terminal ( 4 pins ), the internal reference of
VDD amplifier starts-up, it becomes I2C BUS communication will possible condition.
In case of this condition, it becomes Istby=30uA.
In I2C BUS command (Stby L→H), when sending by the Write command, the charging by the Ripple voltage
(terminal) begins after the switchover to the condition of the above 2).
When the Ripple voltage(terminal) reaches the value of the wish by this, it becomes an IC operation condition.
Name
C1
C2
C3
C4
C5
cranking condition.
engine cranking condition.
As for this product, to decrease an quiescent current with the stand-by state, the I2C BUS communication
possible condition and the simple condition in case of the turning on exist.
Please confirm of the request the following contents in the limit of the set design.
It doesn't impress the external voltage (5V/3.3V) and it says the time when the Ripple voltage potential is
large to the ClipDet terminal ( 4 pins ).In case of this condition, it becomes Istby=0.
This feature will normally be used to suppress pop noise resulting from V
The fast mute mode can be entered on receipt of a command via I
Using the IB2 register and setting to ‘one’ the bit D6, it is possible to generate a fast I
If a fast mute command is received, this IC will operate and will discharge the built-in capacitor .
Therefore the Pop sound will be reduced compared to the condition when Fast Mute is not used in the
Recommended
3900 µF
0.22 µF
0.1 µF
4.7 µF
Value
10 µF
To eliminate DC
To reduce ripple
To determine the
time of turn on
diag
To provide
sufficient
oscillation margin
To reduce pop
noise
Ripple filter
Purpose
Cut-off frequency becomes
higher
Power ON/OFF time and turn
ON diag cycle shorter
Reduces noise and provides sufficient oscillation margin
Pop noise becomes larger
Muting ON/OFF time is
shorter
Power supply ripple filtering
Lower than Recommended
Value
3
Effect
Cut-off frequency becomes
lower
Power ON/OFF time and turn
ON diag cycle longer
Pop noise becomes smaller
Muting ON/OFF time is
longer
Higher than Recommended
2
C bus.
Value
CC
transients during engine
2
C mute command.
TB2932HQ
Pop noise is
concerned with
this capacitor.
2007-07-01
Notes