參數(shù)資料
型號(hào)： TDF8599TD
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 70 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36
封裝： PLASTIC, SOT851-2, HSOP-36
文件頁數(shù)： 52/53頁
文件大小： 329K
代理商： TDF8599TD
TDF8599_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 30 July 2009
8 of 53
NXP Semiconductors
TDF8599
I2C-bus controlled dual channel class-D power amplier
[1]
X = do not care.
[1]
X = do not care.
8.3 Pulse-width modulation frequency
The output signal from the amplier is a PWM signal with a clock frequency of fosc. This
frequency is set by connecting a resistor (Rosc) between pins OSCSET and AGND. The
optimal clock frequency setting is between 300 kHz and 400 kHz. Connecting a resistor
with a value of 39 k
, for example, sets the clock frequency to 320 kHz (see Figure 6).
The external capacitor (Cosc) has no inuence on the oscillator frequency. It does
however, reduce jitter and sensitivity to disturbance. Using a 2nd order LC demodulation
lter in the application generates an analog audio signal across the loudspeaker.
8.3.1 Master and slave mode selection
In a master and slave conguration, multiple TDF8599 devices are daisy-chained together
in one audio application with a single device providing the clock frequency signal for all
other devices. In this situation, it is recommended that the oscillators of all devices are
synchronized for optimum EMI behavior as follows:
All OSCIO pins are connected together and one TDF8599 in the application is congured
as the clock-master. All other TDF8599 devices are congured as clock-slaves (see
The clock-master pin OSCIO is congured as the oscillator output. When a resistor
(Rosc) is connected between pins OSCSET and AGND, the TDF8599 is in Master
mode.
The clock-slave pins OSCIO are congured as the oscillator inputs. When pin
OSCSET is directly connected to pin AGND (see Table 6), the TDF8599 is in Slave
mode.
Table 4.
I2C-bus mode operation
Pin EN
Pin SEL_MUTE
Bit IB1[D0]
Bit IB2[D0]
Mode
HIGH (S2 closed)
HIGH
1
0
Operating mode
LOW
1
Mute mode
LOW
0
Standby mode
LOW (S2 open)
off
Table 5.
Non-I2C-bus mode operation
Pin EN
Pin SEL_MUTE
Mode
HIGH (S2 closed)
HIGH (S1 open)
Operating mode
LOW (S1 closed)
Mute mode
LOW (S2 open)
off
Table 6.
Mode setting pin OSCIO
Mode
Settings
Pin OSCSET
Pin OSCIO
Master
Rosc > 26 k
output
Slave
Rosc =0 ; shorted to pin AGND
input
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDF8599TD/N2,512 功能描述:音頻放大器 IC AMP AUDIO PWR 85W D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDF8599TD/N2,518 功能描述:音頻放大器 IC AMP AUDIO PWR 85W D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDF8599TH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled dual channel 43 W/2 W single channel 85 W/1 W class-D power amplifier with load diagnostics
TDF8599TH/N2,512 功能描述:音頻放大器 IC AMP AUDIO PWR 85W D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDF8599TH/N2,518 功能描述:音頻放大器 IC AMP AUDIO PWR 85W D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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