參數(shù)資料
型號(hào)： TFA9812HN/N1,518
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48
封裝： 7 X 7 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT619-8, HVQFN-48
文件頁(yè)數(shù)： 64/66頁(yè)
文件大小： 386K
代理商： TFA9812HN/N1,518
TFA9812_2
NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 02 — 22 January 2009
7 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplier with I2S input
14
OUT2N
O
Negative PWM output channel 2
15
BOOT1P
O
Bootstrap high-side driver positive PWM output channel 1
16
OUT1P
O
Positive PWM output channel 1
17
OUT1P
O
Positive PWM output channel 1
18
VDDP
P
Positive power supply voltage (8 V to 20 V)
19
VDDP
P
Positive power supply voltage (8 V to 20 V)
20
OUT2P
O
Positive PWM output channel 2
21
OUT2P
O
Positive PWM output channel 2
22
BOOT2P
O
Bootstrap high-side driver positive PWM output channel 2
23
OUT1N
O
Negative PWM output channel 1
24
OUT1N
O
Negative PWM output channel 1
25
BOOT1N
O
Bootstrap high-side driver negative PWM output channel 1
26
VSSP1
P
Negative power supply voltage for channel 1 and channel 2
27
VSSP1
P
Negative power supply voltage for channel 1 and channel 2
28
STAB1
O
Decoupling of internal 11 V regulator for channel 1 drivers
29
DIAG
O
Fault mode indication output (open-drain pin)
30
CDELAY
I
Timing reference
31
POWERUP
I
Power-up pin to switch between Sleep and other operational
modes
32
AVOL
I
Analog volume control (Legacy mode)
33
ENABLE
I
Enable input to switch between 3-state and other
operational modes
34
GAIN
I
Gain selection input to select between 0 dB and +24 dB
gain (Legacy mode)
35
CSEL
I
Control selection input to select between Legacy mode
(no I2C bus control) and I2C bus control
36
ADSEL2/PLIM2 I
Address selection in I2C mode input 2, power limiter
selection input 2 in Legacy mode
37
ADSEL1/PLIM1 I
Address selection in I2C mode input 1, power limiter
selection input 1 in Legacy mode
38
SCL/SFOR
I
I2C bus clock input in I2C mode, I2S serial data format
selection input in Legacy mode
39
SDA/MS
I/O
I2C bus data input and output in I2C mode, master/slave
selection input in Legacy mode
40
VDDD(3V3)
P
Digital supply voltage (3.3 V)
41
STABD
O
1.8 V digital stabilizer output
42
REFD
P
Digital reference voltage
43
TEST2
I
Test signal input 2; for test purposes only (connect to VSS)
44
DATA
I
I2S bus data input
45
WS
I/O
I2S bus word select input (I2S slave mode) or output (I2S
master mode)
46
BCK
I/O
I2S bus bit clock input (I2S slave mode) or output (I2S
master mode)
Table 3.
Pinning description TFA9812 …continued
Pin
Symbol
Type
Description
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