参数资料
| 型号： | CM2020-01TR |
| 厂商： | ON Semiconductor |
| 文件页数： | 8/9页 |
| 文件大小： | 0K |
| 描述： | IC HDMI XMITTER PORT P/I 38TSSOP |
| 标准包装： | 2,500 |
| 系列： | * |
| 其它名称： | CM2020-01TR-ND CM2020-01TROSTR |
CM202001TR
http://onsemi.com
8
APPLICATION INFORMATION (Cont’d)
Design Considerations
5V Overcurrent Output
Maximum Overcurrent Protection output drop at 55 mA on 5V_OUT is 100 mV. To meet HDMI output requirements of
4.8 5.3 V, an input of greater than 4.9 V should be used (i.e. 5.1 V
±4%). A 0.1 mF ceramic bypass capacitor on this output
is also recommended.
Hotplug Detect Input
To meet the requirements of HDMI CTS TID712, the following pullup/pulldown configuration is recommended for a 3.3 V
±10% internal VCC rail (See Figure 4 below). A 0.1 mF ceramic capacitor is recommended for additional edge debounce and
ESD bypass.
DUT On vs. DUT Off
Many HDMI CTS tests require a power off condition on the System Under Test. Many Dual Rail Clamp (DRC) ESD diode
configurations will be forward biased when their VDD rail is lower than the I/O pin bias, thereby exhibiting extremely high
apparent capacitance measurements, for example. The MediaGuard
t backdrive isolation circuitry limits this current to
<5
mA, and will help ensure compliance.
Figure 4. Design Example
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LV_SUPPLY
5V_SUPPLY
RPU
47K
RPU
47K
RPU
47K
RPU
47K
D2+
D2
D1+
D1
D0+
D0
CK+
CK
HOTPLUG
DOC_DAT
DOC_CLK
CEC
HDMI ASIC
CM2020
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2
3
4
5
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7
8
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5V
LV
GND
D2+
GND
D2
D1+
GND
D1
D0+
GND
D0
CK+
GND
CK
CEC_I
SCK_I
SDA_I
HPD_I
D2+
GND
D2
D1+
GND
D1
D0+
GND
D0
CK+
GND
CEC
CK
N/C
SCL
SDA
DDC GND
HOTPLUG
+5V
VOUT
BYPASS
20
38
37
GND 36
D2+ 35
GND 34
D2 33
D1+ 32
GND 31
D1 30
D0+ 29
GND 28
D0 27
CK+ 26
GND 25
CK 24
CECO23
SCKO22
SDAO21
HPDO
3.3 V
RCEC
27K
TP1
HDMI
RPD
15K
COUT
100 nF
RSCL
4.7K
RSDA
4.7K
OPTIONAL
CBYP
100 nF
5V DOMAIN
“OUT” TO CABLE
LV DOMAIN
“IN” TO ASIC
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