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參數(shù)資料
| 型號： | TDA19989AET |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | 150 MHz pixel rate HDMI 1.4 transmitter with 3 x 8-bit video inputs, HDCP and CEC support |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PBGA64 |
| 封裝： | 4.50 X 4.50 MM, 0.95 MM HEIGHT, PLASTIC, SOT-962-3, TFBGA-64 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 61K |
| 代理商： | TDA19989AET |
AN10920_1
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Application note
Rev. 01 — 19 April 2010
3 of 8
NXP Semiconductors
AN10920
Using CEC with TDA19989
1. Introduction
The TDA19989 is a 150 MHz pixel rate HDMI 1.3a transmitter with 3
×
8-bit video inputs
that includes an embedded feature which enables it to support the Consumer Electronic
Control (CEC) protocol.
CEC operates over a bidirectional single-wire bus allowing communication of
CEC-enabled AV products, connected by HDMI, over the home-appliance network using a
single remote control.
This application note explains the exact requirements for the following functions that must
be observed to ensure the TDA19989 CEC feature operates correctly:
CEC internal clock calibration
CEC data registers read/write
2. CEC internal clock calibration
The clock to the TDA19989 CEC module can be supplied either:
externally from an external oscillator source
or
internally from the TDA19989’s dedicated internal Free Running Oscillator (FRO)
If the internal clock is used, it
must
be calibrated every time the TDA19989 is powered up.
The process for calibrating the internal clock is shown in the flow chart
Figure 1
. Note that
it is imperative that the steps shown in the flow chart must be followed exactly to ensure
that the internal clock is calibrated correctly.
Calibration functions controlled by the host processor are located in the software driver
supplied with the TDA19989; for information on these functions you will need to refer to
the
HDMI CEC User Manual
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA19989AET/C181,5 | 功能描述:視頻 IC 150MHZ PIXEL HDMI 1.4 TRANSMITTER RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TDA19989AET/C181’5 | 功能描述:視頻 IC 150MHZ PIXEL HDMI 1.4 TRANSMITTER RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TDA19989AET/C185,5 | 功能描述:視頻 IC 150MHZ PIXEL RATE HDMI 1.3 TRANSMITTER RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TDA19989AET/C185,518 | 制造商:NXP Semiconductors 功能描述: |
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