TDA8595 NXP Semiconductors, TDA8595 Datasheet - Page 9

• Manufacturer Part Number: TDA8595
• Description: The TDA8595 is a complementary quad Bridge Tied Load (BTL) audio power amplifiermade in BCDMOS technology
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TDA8595_2
Product data sheet
Fig 4. Start-up and shut-down timing in I
V
DIAG
DB2 bit D7
POR
IB1 bit D0
start enable
STB
SVR
amplifier
output
P
When the amplifier is switched off by pulling the STB pin LOW, the amplifier is first muted
(fast mute) and then the capacitor on the SVR pin is discharged. With an SVR capacitor of
22 F the standby current is reached 1 second after the STB pin is switched to zero (see
Figure
The start-up and shut-down pop can be further decreased by activating the low pop mode.
When the low pop mode is enabled (IB2[D3] = 0), the output voltage rise from ground level
during start-up will be slower (see
increase the start-up time.
t
d(mute_off)
t
wake
t
amp_on
4,
Figure
5,
2
Figure 6
C-bus mode
Rev. 02 — 21 November 2007
and
t
d(soft_mute)
Figure
Figure
7).
6). This will decrease the pop even more but will
I
2
C-bus controlled 4
t
d(fast_mute)
45 W power amplifier
fast
mute
t
TDA8595
off
© NXP B.V. 2007. All rights reserved.
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