TDA1566TH View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
TDA1566TH
NXP Semiconductors.
TDA1566TH Datasheet PDF : 46 Pages
| |||
NXP Semiconductors
TDA1566
I2C-bus controlled dual channel/single channel ampliļ¬er
Table 19. Data bytes
Bit Data byte DB1 channel 1 Data byte DB2 channel 2 Data byte DB3 both
channels
D7
0 no AC load detected 0 no AC load detected 0 TDA1566 in mute or
operating
(IB1[D0] = 1)
1 AC load detected
1 AC load detected
1 power-on reset has
occurred or TDA1566
in standby
(IB1[D0] = 0)
D6
0 no speaker fault
0 no speaker fault
0 below maximum
temperature
1 speaker fault
1 speaker fault
1 maximum
temperature
protection activated
D5
0 ampliļ¬er load (D4 = 0) 0 ampliļ¬er load (D4 = 0) 0 no temperature
not valid (D4 = 1)
not valid (D4 = 1)
warning
1 line driver load
(D4 = 0)
1 line driver load
(D4 = 0)
1 temperature
pre-warning active
open load (D4 = 1)
open load (D4 = 1)
D4
0 ampliļ¬er load (D5 = 0) 0 ampliļ¬er load (D5 = 0) 0 SVR below VP / 2
line driver load
(D5 = 1)
line driver load
(D5 = 1)
1 not valid (D5 = 0)
1 not valid (D5 = 0)
1 SVR above VP / 2
open load (D5 = 1)
open load (D5 = 1)
D3
0 no shorted load
0 no shorted load
0 invalid DC load data
1 shorted load
1 shorted load
1 valid DC load data
D2
0 no output offset
0 no output offset
reserved for test
1 output offset detected 1 output offset detected
D1
0 no short to VP
0 no short to VP
reserved for test
1 short to VP
1 short to VP
D0
0 no short to ground
0 no short to ground
reserved for test
1 short to ground
1 short to ground
6.5 Timing waveforms
6.5.1 Start-up and shutdown
To prevent switch-on or switch-off pop noise, the capacitor on the SVR pin CSVR is used
for smooth start-up and shutdown. During start-up and shutdown the output voltage tracks
the SVR voltage. With IB1[D7] = 0 the time constant made with the SVR capacitor can be
increased to reduce turn on transients at the load. Consequently the start-up time
td(mute_off) increases with approximately 420 ms (VP = 14.4 V, CSVR = 22 ĀµF, Tamb = 25 Ā°C).
Note that in non-I2C-bus mode the IB1[D7] = 0 setting will be used.
Increasing CSVR results in a longer start-up and shutdown time. Note that a larger SVR
capacitor value will also result in a longer DC load detection cycle.
TDA1566_2
Product data sheet
Rev. 02 ā 20 August 2007
Ā© NXP B.V. 2007. All rights reserved.
17 of 46
Share Link: 