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| 型号： | TDA9989ET |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PBGA64 |
| 封装： | 4.50 X 4.50 MM, 0.80 MM HEIGHT, PLASTIC, SOT-962-3, TFBGA-64 |
| 文件页数： | 20/48页 |
| 文件大小： | 226K |
| 代理商： | TDA9989ET |
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TDA9989_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 11 June 2009
27 of 48
NXP Semiconductors
TDA9989
HDMI 1.3a transmitter with CEC support
Non successful calibration will lead to CEC signal no matching timings specication as
consequence CEC not functional.
7.11.3 CEC interrupt
Pin INT_HDMI is used by the TDA9989 to warm the host processor HDMI or CEC events
(CEC message is available to read) have occurred.
Software reads interrupt status register determine which block between HDMI or CEC has
raised the interruption before processing it.
7.11.4 Power-On Reset (POR)
After power-up, the TDA9989 is activated by hard reset by POR module. This is used to
set the TDA9989 to a known state.
7.11.5 Repeater function
The TDA9989 can be used in a repeater device according to HDMI 1.3a.
7.12 HDMI core
7.12.1 Output TMDS buffers
7.12.1.1
Digitally controlled signal amplitude
The TMDS signal output peak-to-peak voltage (Vswing) is programmable by the software
using I2C-bus register vswing_crtl[3:0]. Vswing varies from 370 mV to 640 mV with
±5%
accuracy in 18 mV steps according to the following formula:
Vswing = 370 mV + 18 mV
× vswing_ctrl[3:0]
An external resistor (10 k
± 1 %) must be connected between pin EXT_SWING and
analog ground.
7.12.2 Pixel repetition
To transmit video formats with pixel rates below 25 megasamples per second or to
increase the number of audio sample packets in each frame, the TDA9989 uses pixel
repetition to increase the transmitted pixel clock (see Table 20).
Table 20.
Pixel repetition
PR[3]
PR[2]
PR[1]
PR[0]
Pixel repetition factor
0000no repetition: pixel sent once
00012 times: pixel repeated once
00103 times
00114 times
01005 times
01016 times
01107 times
01118 times
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相关代理商/技术参数 |
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| TDA9989ET/C1,518 | 功能描述:视频 IC IC HDMI TX 1.3A 150MHZ RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| TDA9989ET/C1,551 | 功能描述:视频 IC IC HDMI TX 1.3A 150MHZ RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| TDA9989ET/C1,557 | 功能描述:视频 IC IC HDMI TX 1.3A 150MHZ RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| TDA9995HL/C1,518 | 功能描述:视频开关 IC HDMI SW 3:1 EQUALIZER RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| TDA9995HL/C1,551 | 功能描述:视频开关 IC HDMI SW 3:1 EQUALIZER RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
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