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參數(shù)資料
| 型號： | CM2030-A0TR |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 8/11頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC HDMI TX PORT P/I 38-TSSOP |
| 標(biāo)準包裝： | 1 |
| 系列： | * |
| 類型： | * |
| 應(yīng)用： | * |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 38-TFSOP （0.173"，4.40mm 寬）裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 38-TSSOP |
| 包裝： | 標(biāo)準包裝 |
| 其它名稱： | CM2030-A0TROSDKR |
CM2030
http://onsemi.com
6
than 2 kW, and up to 7.3 nF total capacitance.) The CM2030
targets an output drive slewrate of less than 100 mV/ms
regardless of static load for the CEC line. Additionally, the
same internal circuitry will perform active termination, thus
reducing ringing and overshoot in entertainment systems
connected to legacy or poorly designed CEC nodes.
The CM2030’s bidirectional slew rate limiting is
integrated into the CEC levelshifter functionality thus
allowing the designer to directly interface a simple low
voltage CMOS GPIO directly to the CEC bus and
simultaneously guarantee meeting all CEC output logic
levels and HDMI slewrate and isolation specifications (See
Figure 5).
Figure 5. Integrated CM2030 Solution
CEC
CM2030
CEC I/F
mP
The CM2030 also includes an internal backdrive
protected static pullup 120
mA current source from the
CE_SUPPLY rail in addition to the dynamic slew rate
control circuitry.
Figure 6 shows a typical shaped CM2030 CEC output
(bottom) against a ringing uncontrolled discrete solution
(top).
Figure 6. CM2030 CEC Output
HDMI certification requires capacitance measurement of
the CEC line to be less than 150 pF per device. Due to the
active circuit inside the CM2030 CEC line, CM2030 may
cause false readings during the CEC capacitance
measurement and not pass the test. The active circuit of the
CM2030 CEC line would react with the LCR meter and
cause false capacitance readings. There is no issue with the
operation of the CM2030 CEC line during normal
operations. In fact, CM2030 CEC has shown to improve the
signal integrity of the CEC line. CM2030 can be used for
applications which do not require HDMI certification or
applications which do not use the CEC line.
HOTPLUG DETECT LOGIC
The CM2030 ensures that the local ASIC will properly
detect an HDMI compliant Sink. The current sink maintains
a local logic “l(fā)ow” when no system is connected.
A valid pullup on the HDMI connector pin will overdrive
the internal pulldown and deliver a logic “high” to the local
ASIC.
HP_OUT
5V_SUPPLY
IS
HP_IN
LV SUPPLY
3IS
CM2030
19
HDMI CONN
Figure 7. Hotplug Detect Circuit
A 15 K
W pull down resistor should be connected between
HP_OUT and ground as required by HDMI specification.
There should be no pull up on the HP_IN, ASIC side of
CM2030.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CM2031 | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:HDMI Receiver Port Protection and Interface Device |
| CM2031-A0TR | 功能描述:ESD 抑制器 HDMI Reciever Port RoHS:否 制造商:STMicroelectronics 通道:8 Channels 擊穿電壓:8 V 電容:45 pF 端接類型:SMD/SMT 封裝 / 箱體:uQFN-16 功率耗散 Pd: 工作溫度范圍:- 40 C to + 85 C |
| CM2037 | 制造商:CML 制造商全稱:Chicago Miniature Lamp,inc 功能描述:T-1 3/4 Wire Terminal (standard) |
| CM2039 | 制造商:CML 制造商全稱:Chicago Miniature Lamp,inc 功能描述:T-1 3/4 Wire Terminal (standard) |
| CM20-4 | 功能描述:燈 2.5V .35A Lens End RoHS:否 制造商:Chicago Miniature 燈類型:Incandescent 燈座類型:Wire Terminal 燈大小:T-1 3/4 顏色: 電壓:14 V 工作電流: MSCP:0.3 MSCP 壽命:40000 hr 封裝:Bulk |
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