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参数资料
| 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： | 17/48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
24 of 48
NXP Semiconductors
TDA9989
HDMI 1.3a transmitter with CEC support
7.10 Interrupt controller
Pin INT_HDMI is used to alert the micro controller that a critical event concerning the
HDMI or CEC has occurred. The software provided with the device read a status register
(I2C-bus) to determine which block between HDMI and CEC has caused the interruption
before processing it. Some of theses interrupts are maskable. The interrupt types are
described in Table 18.
7.10.1 Hot plug/unplug detect
The hot plug detect (HPD) pin is 5 V input tolerant. The HPD signal, when asserted, tells
the transmitter that the receiver is connected. When changing from LOW-to-HIGH, the
TDA9989 has to read the EDID of the receiver in order to select the video format that the
receiver can handle.
7.10.2 Receiver sensitivity
The TDA9989 has the capability to sense the receiver connectivity and working behavior.
This feature (RxSense) detects the presence of the 50
pull-up resistor R
T on the TMDS
clock channel of the downstream side.
Table 18.
Interruptions
Interrupt domain
Interrupt name
Denition
Maskable feature
HPD
hpd
transition on HPD input
maskable
RxSense
rx_sense
transition on RxSense
maskable
Interrupt
sw_intsoftware
test purpose (output an
interrupt signal)
maskable
EDID
edid_block_rd
EDID block read nished maskable
CEC
cec_int
CEC message received
not maskable
Fig 15. Receiver sensitivity detection
INTERNAL
BANDGAP
0.935 V
±4 %
VDD 1.8 V
power_down
TDA9989
pole
τ =
80 ns
RXS_FIL
Vinp_rxs
I_transmit
Vinn_rxs
35 k
35 k
RECEIVER
HDMI cable
Rpu
VCC
001aai452
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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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