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參數(shù)資料
| 型號： | TDA8442 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | I2C-bus interface for colour decoders |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大小： | 85K |
| 代理商： | TDA8442 |
March 1991
3
Philips Semiconductors
Product specification
I
2
C-bus interface for colour decoders
TDA8442
PINNING
PIN
SYMBOL
DESCRIPTION
1
2
3
4
5
6
DAC1
DAC2
DAC3
SDA
SCL
P2
analogue output 1
analogue output 2
analogue output 3
serial data line; I
2
C-bus
serial clock line; I
2
C-bus
Port 2 npn collector output
with internal pull-up
resistor
not connected
supply return (ground)
positive supply voltage
not connected
Port 1 open npn emitter
output
inverted P2 output
not connected
not connected
not connected
analogue output 0
7
8
9
10
11
n.c.
GND
V
P
n.c.
P1
12
13
14
15
16
P2N
n.c.
n.c.
n.c.
DAC0
Fig.2 Pinning diagram
FUNCTIONAL DESCRIPTION
Control
Analogue control is facilitated by four 6-bit digital-to-analogue converters (DAC0 to DAC3).
The values of the output voltages from the DACs are set via the I
2
C-bus.
The high-current output port (P1) is suitable for switching between internal and external RGB signals.
It is an open npn emitter output capable of sourcing 14 mA (min.).
The two output ports (P2 and P2N) can be used for NTSC/PAL switching. These are npn collector outputs with internal
pull-up resistors of 10 k
(typ.). Both outputs are capable of sinking up to 2 mA with a voltage drop of less than 400 mV.
If one output is switched on (LOW), the other output is switched off, and vice versa.
Reset
The power-down-reset mode occurs whenever the positive supply voltage falls below 8.5 V (typ.) and resets all registers
to a defined state.
相關(guān)PDF資料 |
PDF描述 |
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| TDA8443A | I2C-bus controlled YUV/RGB switch |
| TDA8446 | Fast RGB/YC switch for digital decoding |
| TDA8446T | Fast RGB/YC switch for digital decoding |
| TDA8501 | PAL/NTSC encoder |
| TDA8501T | PAL/NTSC encoder |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8443A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled YUV/RGB switch |
| TDA8443AN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TV Switch Circuit |
| TDA8444 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octuple 6-bit DACs with I2C-bus |
| TDA8444AT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octuple 6-bit DACs with I2C-bus |
| TDA8444AT/N4,112 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC OCTUPLE 6-BIT D/A RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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