参数资料
| 型号： | CM2021-02TR |
| 厂商： | ON Semiconductor |
| 文件页数： | 8/9页 |
| 文件大小： | 0K |
| 描述： | IC HDMI TX PORT P/I3 8TSSOP |
| 产品变化通告： | CMD Product Obsolescence 16/Mar/2011 |
| 标准包装： | 2,500 |
| 系列： | * |
CM202102TR
http://onsemi.com
8
APPLICATION INFORMATION (Cont’d)
Design Considerations
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 less
than 10
mA, and will help ensure compliance.
EEPROM Configurations
The EDID EEPROM may be connected to either the ASIC LV domain or Connector 5 V domain of the CM2021. See the
MediaGuard EEPROM Application Note for further circuit connection and layout examples.
5V DOMAIN
“OUT” TO CABLE
LV DOMAIN
“IN” TO ASIC
Figure 4. Design Example
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
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
CM2021
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
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
NC
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
2.0K
RHP 1.0K
OPTIONAL
CBYP
100 nF
DCEC
2.0K
D1
D2
1
2
3
4
8
7
6
5
A0
A1
A2
GND SDA
SCL
WP
VCC
24C02
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