TDA1566TH View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
TDA1566TH
NXP Semiconductors.
TDA1566TH Datasheet PDF : 46 Pages
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NXP Semiconductors
TDA1566
I2C-bus controlled dual channel/single channel ampliļ¬er
For optimized pop performance it is recommended to keep the ampliļ¬er in mute until the
SVR voltage has reached its ļ¬nal level.
When the ampliļ¬er is switched off by pulling the EN pin LOW the ampliļ¬er is muted (fast
mute) and the capacitor on the SVR pin will be discharged. With an SVR capacitor of
22 ĀµF the off current is reached 2 s after the EN pin is switched to zero.
Start-up and shutdown in I2C-bus mode is shown in Figure 11 and explained in Table 20.
VP
DIAG
DB3[D7]
DB3[D4]
IB1[D0]
IB2[D0] = 0
2
1
EN
5
3
7
4
6
9
8
SVR
OUTx
t wake
t d(mute_off)
t dcload
t d(mute-fgain)
slow
mute
10
fast
mute
Fig 11. Start-up and shutdown timing in I2C-bus mode
001aad 014
Table 20. Start-up and shutdown timing in I2C-bus mode
Step Action
Result
1
TDA1566 is enabled with EN TDA1566 from off to standby
DB3[D7] is set and DIAG is pulled LOW to indicate
power-on reset
2
TDA1566 is switched from DIAG is released
standby to operating with
IB1[D0] = 1
DB3[D7] is reset
SVR capacitor is charged, OUTx voltage tracks SVR
voltage
gradual increase of gain; when the SVR voltage increases
above a threshold of 2 V + 2VBE the ampliļ¬ers operate at
full gain
TDA1566_2
Product data sheet
Rev. 02 ā 20 August 2007
Ā© NXP B.V. 2007. All rights reserved.
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