TFA9812HN PHILIPS [NXP Semiconductors], TFA9812HN Datasheet - Page 5

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

6. Block diagram
Fig 1.
ADSEL2/PLIM2
ADSEL1/PLIM1
POWERUP
SCL/SFOR
XTALOUT
TFA9812 block diagram
ENABLE
SDA/MS
XTALIN
MCLK
DATA
CSEL
GAIN
BCK
WS
46
45
44
1
2
47
31
33
34
35
36
37
38
39
OSCILLATOR
INTERFACE
PHASED
LOCKED
SERIAL
AUDIO
LOOP
INTERFACE
CONTROL
TEST1
7
PARAMETRIC
EQUALIZER
10-BAND
TEST2
PROTECTION
CLOCK
PROTECTION
43
UFP
OFP
IBP
LP
DIAG
OVP
UVP
OCP
OTP
ODP
WP
29
CONTROL
AND SOFT
REGISTER
ADDRESS
VOLUME
HEX 01
MUTE
CDELAY
1
30
DE-EMPHASIS
0
FILTER AND
POLATION
STABD
AVOL
INTER-
ADC
41
32
CSEL
FOLDBACK
REFD
THERMAL
REFERENCES
42
GAIN
STABA
V
DDD(3V3)
TFA9812
4
LIMITER
POWER
40
REFA
V
5
DDA(3V3)
3
CONTROLLER
CONTROLLER
V
DDA
PWM
PWM
6
EXPOSED DIE PADDLE V
CONTROL
CONTROL
CONTROL
CONTROL
LOGIC
LOGIC
LOGIC
LOGIC
SS1
8
DRIVER
DRIVER
DRIVER
DRIVER
DRIVER
DRIVER
DRIVER
DRIVER
V
HIGH
HIGH
HIGH
LOW
HIGH
LOW
LOW
LOW
SS2
48
STAB2
STAB1
V
V
V
18, 19
16, 17
10, 11
23, 24
26, 27
V
20, 21
13, 14
V
SSP2
DDP
DDP
DDP
SSP2
15
25
28
22
12
9
OUT1P
V
BOOT1N
OUT1N
V
STAB1
BOOT2P
OUT2P
BOOT2N
OUT2N
BOOT1P
V
STAB2
010aaa217
SSP2
DDP
SSP1