TFA9812HN PHILIPS [NXP Semiconductors], TFA9812HN Datasheet - Page 39

• Manufacturer Part Number: TFA9812HN
• Description: BTL stereo Class-D audio amplifier with I2S input
• Manufacturer: PHILIPS [NXP Semiconductors]

NXP Semiconductors
10. Internal circuitry
TFA9812_2
Preliminary data sheet
Table 51.
D = fixed control setting, determined by default I
supported (i.e. all options implemented in the TFA9812).
[1]
[2]
[3]
[4]
[5]
Table 52.
Control function
Clip level control
Output power limit level control
PWM signal frequency selection
Thermal foldback threshold temperature control
Pin
1
32
2
3
40
32 kHz, 44.1 kHz and 48 kHz supported
Bypass.
Special Legacy mode implementation.
10 % clip level.
400 kHz.
Functional control support in I
Internal circuitry
Symbol
XTALIN
AVOL
XTALOUT
V
V
DDA(3V3)
DDD(3V3)
Rev. 02 — 22 January 2009
Equivalent circuitry
BTL stereo Class-D audio amplifier with I
2
C and Legacy control modes
2
C register setting; N = not supported; Y = fully
2
Reference
Section 8.5.5
Section 8.5.6
Section 8.5.7
Section 8.7.1
ESD
3, 40
ESD
1, 32
V
SS1
Exposed die paddle
, V
STABA
ESD
V
Exposed die-paddle
SS2
SS1
I
Y
Y
Y
Y
2
C mode
, REFA, REFD
, V
V
Exposed die-paddle
SS1
SS2
, V
, REFA, REFD,
010aaa459
SS2
…continued
010aaa461
, REFA, REFD,
© NXP B.V. 2009. All rights reserved.
TFA9812
Legacy mode
D
Y
D
N
010aaa460
[4]
[5]
2
S input
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