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參數(shù)資料
| 型號(hào)： | ZXCD1000EQ16 |
| 廠商： | ZETEX PLC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | HIGH FIDELITY CLASS D AUDIO AMPLIFIER SOLUTION |
| 中文描述： | 2 CHANNEL, AUDIO AMPLIFIER, PDSO16 |
| 封裝： | QSOP-16 |
| 文件頁(yè)數(shù)： | 4/16頁(yè) |
| 文件大?。?/td> | 1226K |
| 代理商： | ZXCD1000EQ16 |
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ISSUE 2 - APRIL 2002
ZXCD1000 Class D controller IC
A functional block diagram of the ZXCD1000 is shown
in Figure 2. The on chip series regulators drop the
external VCCsupply (12V-18V) to the approximate 9V
(9VA/9VB) and 5.5V (5V5) supplies required by the
internal circuitry.
A triangular waveform is generated on chip and is
brought out at the OscA and OscB outputs. The
frequency of this is set (to ~200kHz) by an external
capacitor (Cosc) and on chip resistor. The triangular
waveform must be externally AC coupled back into the
ZXCD1000 at the TriangleA and TriangleB inputs.
AC coupling ensures symmetrical operation resulting
in minimal system DC offsets. TriangleA is connected
to one of the inputs of a comparator and TriangleB is
connectedtooneoftheinputsofasecondcomparator.
The other inputs of these two comparators are
connected to the AudioA and AudioB inputs, which are
anti-phase signals externally derived from the audio
input. The triangular wave is an order higher in
frequency than the audio input (max 20kHz). The
outputs of the comparators toggle every time the
TriangleA/B and the (relatively slow) AudioA/B signals
cross.
ZXCD1000
4
Oscillator & Ramp
Internal 5V5
Internal 9V
PWM
PWM
Pre-
Driver
Pre-
Driver
O/P
Driver
O/P
Driver
Audio A
Audio B
V
CC
C
Out A
15
Out B
10
5
9
9
T
T
O
O
3
D
4
G
G
1
2
5
6 7
8
9
11
12
13
14
16
Buffers
Figure 2.
Functional Block Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZXCD1000EQ16TA | 功能描述:音頻放大器 Class D Cont IC 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 |
| ZXCD1000EQ16TC | 功能描述:音頻放大器 Class D Cont IC 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 |
| ZXCD1000MOKIT | 功能描述:器件套件 ZXCD mono Kit RoHS:否 制造商:AVX 零部件類型: |
| ZXCD1000STKIT | 功能描述:器件套件 ZXCD mono Kit RoHS:否 制造商:AVX 零部件類型: |
| ZXCD100MOEVAL | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:100W CLASS D AUDIO AMPLIFIER EVALUATION BOARD |
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