NXP Semiconductors TFA9812 - Manual (Page 41)

TFA9812_2 © NXP B.V. 2009. All rights reserved.
Preliminary data sheet Rev. 02 — 22 January 2009 41 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplifier with I 2 S input
13/14 OUT2N
16/17 OUT1P
20/21 OUT2P
23/24 OUT1N
29 DIAG
30 CDELAY
31 POWERUP
33 ENABLE
34 GAIN
35 CSEL
36 ADSEL2/PLIM2
37 ADSEL1/PLIM1
43 TEST2
Table 52. Internal circuitry …continued
Pin Symbol Equivalent circuitry
010aaa468
V DDP
13/14, 16/17, 20/21, 23/24
V SSP1 , V SSP2
010aaa469
V DDA
V SS1 V SS1
29
010aaa470
200 nA 5 k Ω
2 µ A
V
DDA
30
DISCHARGE
V SS1
010aaa471
31
V DDA
3 k Ω
250 nA
V
SS1
010aaa472
V
SS1
, V
SS2
, REFA, REFD,
Exposed die-paddle
33, 34, 35, 36, 37, 43
Pull-down
50 µ A
ESD