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TDF8599B 数据表(PDF) 5 Page - NXP Semiconductors

部件名 TDF8599B
功能描述  I2C-bus controlled dual channel 43 W/4 W, single channel 85 W/1 W class-D power amplifier with load diagnostics
PDF  54 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

TDF8599B 数据表(HTML) 5 Page - NXP Semiconductors

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TDF8599B_1
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 — 29 July 2009
5 of 54
NXP Semiconductors
TDF8599B
I2C-bus controlled dual channel class-D power amplifier
[1]
I = input, O = output, I/O = input/output, G = ground and P = power supply.
[2]
In this data sheet supply voltage VP describes VP1, VP2 and VPA.
8.
Functional description
8.1 General
The TDF8599B is a dual full bridge (BTL) audio power amplifier using class-D technology.
The audio input signal is converted into a Pulse-Width Modulated (PWM) signal using the
analog input and PWM control stages. A PWM signal is applied to driver circuits for both
high-side and low-side enabling the DMOS power output transistors to be driven. An
external 2nd order low-pass filter converts the PWM signal into an analog audio signal
across the loudspeakers.
CLIP
13
O
clip output; open-drain
DIAG
14
O
diagnostic output; open-drain
SDA
15
I/O
I2C-bus data input and output
SCL
16
I
I2C-bus clock input
SSM
17
master setting: Spread spectrum mode frequency
slave setting: phase lock operation
OSCSET
18
master/slave oscillator setting
master only setting: set internal oscillator frequency
OSCIO
19
I/O
external oscillator slave setting: input
internal oscillator master setting: output
DCP
20
I
DC protection input for the filtered output voltages
VSTAB2
21
decoupling internal stabilizer 2 for DMOST drivers
OUT2N
22
O
channel 2 negative PWM output
BOOT2N
23
boot 2 negative bootstrap capacitor
VP2[2]
24
P
channel 2 power supply voltage
PGND2
25
G
channel 2 power ground
BOOT2P
26
boot 2 positive bootstrap capacitor
OUT2P
27
O
channel 2 positive PWM output
OUT1P
28
O
channel 1 positive PWM output
BOOT1P
29
boot 1 positive bootstrap capacitor
PGND1
30
G
channel 1 power ground
VP1[2]
31
P
channel 1 power supply voltage
BOOT1N
32
boot 1 negative bootstrap capacitor
OUT1N
33
O
channel 1 negative PWM output
VSTAB1
34
decoupling internal stabilizer 1 for DMOST drivers
VDDD
35
decoupling of the internal 5 V logic supply
GNDD/HW
36
G
ground digital supply voltage
handle wafer connection
Table 3.
Pin description …continued
Symbol
Pin
Type[1]
Description



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