参数资料
型号: TFA9812HN
厂商: NXP SEMICONDUCTORS
元件分类: 音频/视频放大
英文描述: 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48
封装: 7 X 7 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT619-8, HVQFN-48
文件页数: 56/66页
文件大小: 386K
代理商: TFA9812HN
TFA9812_2
NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 02 — 22 January 2009
6 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplier with I2S input
Figure 1 shows the block diagram of the TFA9812. For a detailed description of the audio
signal path see Section 8.1.
7.
Pinning information
7.1 Pinning
Fig 2.
Pin conguration, transparent top view
Table 3.
Pinning description TFA9812
Pin
Symbol
Type
Description
1
XTALIN
I
Crystal oscillator input
2
XTALOUT
O
Crystal oscillator output
3VDDA(3V3)
P
Analog supply voltage (3.3 V)
4
STABA
O
1.8 V analog stabilizer output
5
REFA
P
Analog reference voltage
6VDDA
P
Analog supply voltage (8 V to 20 V)
7
TEST1
I
Test signal input 1. For test purposes only (connect to VSS)
8VSS1
P
PCB ground reference
9
STAB2
O
Decoupling of internal 11 V regulator for channel 2 drivers
10
VSSP2
P
Negative power supply voltage for channel 1 and channel 2
11
VSSP2
P
Negative power supply voltage for channel 1 and channel 2
12
BOOT2N
O
Bootstrap high-side driver negative PWM output channel 2
13
OUT2N
O
Negative PWM output channel 2
010aaa218
TFA9812HN
BOOT1N
VSSP2
BOOT2N
VSSP1
VSSP2
VSSP1
STAB2
STAB1
VSS1
DIAG
TEST1
CDELAY
VDDA
POWERUP
REFA
AVOL
STABA
ENABLE
VDDA(3V3)
GAIN
XTALOUT
CSEL
XTALIN
ADSEL2/PLIM2
OUT2N
BOOT1P
OUT2P
OUT1P
V
DDP
V
DDP
OUT1P
BOOT1P
OUT1N
V
SS2
MCLK
BCK
WS
DATA
TEST2
REFD
STABD
V
DDD(3V3)
SDA/MS
SCL/SFOR
ADSEL1/PLIM1
12
25
11
26
10
27
9
28
8
29
7
30
6
31
5
32
4
33
3
34
2
35
1
36
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
terminal 1
index area
Transparent top view
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