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參數(shù)資料
| 型號(hào)： | TDA8588J |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PZFM37 |
| 封裝： | PLASTIC, SOT725-1, 37 PIN |
| 文件頁數(shù)： | 12/54頁 |
| 文件大?。?/td> | 283K |
| 代理商： | TDA8588J |
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2004 Feb 24
12
Philips Semiconductors
Product specification
I
2
C-bus controlled 4
×
50 Watt power
amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
V
(V)
t (sec)
t
backup
out of regulation
V
O(REG2)
V
BUCAP
V
P
mdb512
Fig.5 Backup capacitor function.
t
backup
C
backup
V
------------------------I
V
L
)
0.5
–
×
=
Reset output
A reset pulse is generated at pin RST when the output
voltage of regulator 2 rises above the reset threshold
value. The reset output is a push-pull output that both
sources and sinks current. The output voltage can switch
between ground and V
O(REG2)
, and operates at a low
regulator 2voltageorV
BUCAP
.TheRSTsignaliscontrolled
by a low-voltage detection circuit which, when activated,
pulls pin RST LOW (reset active) when V
O(REG2)
is
≤
V
th(rst)
. If V
O(REG2)
≥
V
th(rst)
, pin RST goes HIGH. The
reset pulse is delayed by 40
μ
s internally. To extend the
delay and to prevent oscillations occurring at the threshold
voltage, an external capacitor can be connected to
pin RESCAP. Note that a reset pulse is not generated
when V
O(REG2)
falls below the reset threshold value.
Reset delay capacitor
A Reset Delay Capacitor (RDC) connected to
pin RESCAP can be used to extend the delay period of the
reset pulse and to ensure that a clean reset signal is sent
to the microcontroller. The RDC is charged by a current
source. The reset output (pin RST) will be released
(pin RST goes HIGH) when the RDC voltage crosses the
RDC threshold value.
Power switches
There are two power switches that provide an unregulated
DC voltage output for amplifiers and an aerial motor
respectively. The switches have internal protection for
over-temperature conditions and are activated by setting
bits D2 and D3 of instruction byte IB1 to logic 1. The
regulated outputs will supply pulsed current loads that can
contaminate the line with high frequency noise, so it is
important to prevent any cross-coupling between the
regulated outputs, particularly with the 8.3 V audio supply,
and the unregulated outputs.
In the ON state, the switches have a low impedance to the
battery voltage. When the battery voltage is higher than
22 V, the switches are switched off. When the battery
voltage is below 22 V the switches are set to their original
condition.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8588J/N3 | 功能描述:音頻放大器 MULTI CHIP MODULE IPAS2.50 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 |
| TDA8588J/N3,112 | 功能描述:音頻放大器 MULTI CHIP MODULE 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 |
| TDA8589AJ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled 4 45 Watt power amplifier and multiple voltage regulator |
| TDA8589AJ/N3 | 功能描述:音頻放大器 POWER AMPL + STABI 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 |
| TDA8589AJ/N3,112 | 功能描述:音頻放大器 POWER AMPL + STABI 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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