ADE3800XT データシートの表示（PDF） - STMicroelectronics
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ADE3800XT
STMicroelectronics
ADE3800XT Datasheet PDF : 138 Pages
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ADE3800
Pin Descriptions
Table 5: System Controls (Sheet 2 of 2)
LQFP100 LQFP128
Name
Input/
Output
Description
23
32 XCLK
I/O Crystal clock buffered output. Controlled by XCLK_EN pin
28
37 XCLK_EN
I Crystal clock output enable.
When connected to 3.3 V, the XCLK output is active
When connected to Ground, the XCLK output is disabled
25
34 RESETN2
I
Reset 2 inputa. Active Low
53
65 RESETN
I
Reset input1. Active Low
54
66 SDA
I/O I2C Datab. Open drain
56
68 SCL/CSYNC
I
I2C Clockc or Composite Sync Input Signal
26
35 SDA2
I/O I2C 2 Data2. Open drain
27
36 SCL2/EXT_SOG/
I
I2C 2 Clock3 or Composite Sync Input Signal
CSYNC
24
33 TST_SCAN
I Reserved for test. Should be connected to Digital Ground
a. RESETN and RESETN2 pins are ORed together internally. The pin which is not used must be connected to
ground.
b. The SDA and SDA2 pins share the same internal bi-directional control. The pin that is not used reverts as
output and must be left floating or connected to a pull-up resistor.
c. This device has two RESET/I2C ports (RESETN/SCL/SDA or RESETN2/EXT_SOG/SDA2) to facilitate PCB
layout. The state of the two RESET pins determines which RESET/I2C port is active. The RESET pin that is
held in the low state disables that RESET/I2C port for normal RESET/I2C operations. However, the disabled
ports SCL input (either SCL or EXT_SOG) can be used as a CSYNC input from an external CSYNC extractor.
If this CSYNC input is not required, then the unused SCL pin should be connected to ground
Table 6: Digital Section Power Supply Pins (Sheet 1 of 2)
LQFP100 LQFP128
Name
5
4
DVDD18
6
5
DVDD18
7
6
DGND
8
7
DGND
18
27 DVDD18
19
28 DVDD18
20
29 DGND
21
30 DGND
22
31 DVDD33
55
67 DGND
57
69 DVDD33
66
78 DGND
67
DGND
68
79 DVDD18
69
80 DVDD18
Digital 1.8V Supply
Digital 1.8V Supply
Digital Ground
Digital Ground
Digital 1.8V Supply
Digital 1.8V Supply
Digital Ground
Digital Ground
Digital 3.3V Supply
Digital Ground
Digital 3.3V Supply
Digital Ground
Digital Ground
Digital 1.8V Supply
Digital 1.8V Supply
Description
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