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參數(shù)資料
| 型號： | TDA4885 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | 150 MHz video controller with I2C-bus |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP32 |
| 封裝： | 0.400 INCH, PLASTIC, SOT-232-1, SDIP-32 |
| 文件頁數(shù)： | 9/56頁 |
| 文件大小： | 396K |
| 代理商： | TDA4885 |
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1997 Nov 25
9
Philips Semiconductors
Product specification
150 MHz video controller with I
2
C-bus
TDA4885
7.9
Gain modulation
To achieve brightness uniformity over the screen scan
dependent gain modulation is possible. With open-circuit
pins the gain will be reduced by 20% giving the possibility
of symmetrical gain modulations (
±
18%) with
±
1 V related
to the open-circuit voltage of about 2.0 V at any gain
setting.
If the gain modulation feature will not be used pins GM
1
,
GM
2
and GM
3
should be grounded to profit by maximum
voltage gain.
7.10
I
2
C-bus control
The TDA4885 contains an I
2
C-bus receiver for several
control functions:
1.
Contrast control with 6-bit DAC
2.
Brightness control with 6-bit DAC
3.
OSD contrast control with 4-bit DAC
4.
Gain control for each channel with 6-bit DAC
5.
Internal feedback reference and external reference
voltage control for each channel with 8-bit DAC
6.
Control register with control bits FPOL, DISV, DISO
and PEDST
7.
Test register for production tests only.
All registers are set to logic 0 (minimum value for control
registers) after power-up and after internal power-on reset
of the I
2
C-bus.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA4885/V2 | 制造商:NXP Semiconductors 功能描述: |
| TDA4886 | 制造商:PHILIPS-SEMI 功能描述: |
| TDA4886A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:140 MHz video controller with I2C-bus |
| TDA4887 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:160 MHz bus-controlled monitor video preamplifier |
| TDA4887PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:160 MHz bus-controlled monitor video preamplifier |
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