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參數(shù)資料
| 型號(hào)： | DM9801A |
| 文件頁(yè)數(shù)： | 9/60頁(yè) |
| 文件大小： | 605K |
| 代理商： | DM9801A |
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DM9801A
1M Home Phoneline Network Physical Layer Single Chip Transceiver
Final
Version: DM9801A-DS-F01
May 30, 2001
9
Pin Description
(Continued)
Pin No.
Miscellaneous:
7
Pin Name
I/O
Description
LNKSTA
I/O,Z
Link Status:
Output, positive true logic. Indication of Link Status.
Crystal Pin 1:
This pin should be connected to one side of a 20MHz (
±
50 ppm) crystal.
Crystal Pin 2:
This pin should be connected to the other side of a 20MHz (
±
50 ppm)
crystal.
Bandgap Voltage Reference:
Connect a 6.20_K
, 1% resistor between this pin and the BGGND pin to
provide an accurate current reference for the DM9801A.
Bandgap Voltage Reference Return:
Return pin for the 6.20_K
resistor connection.
Test Mode Control Pin:
TSTMODE=0: Normal operating mode.
TSTMODE=1: Enable test mode.
No Connect:
These pins are reserved. Leave these pins unconnected (floating).
45
XTAL1
ALG
46
XTAL2
ALG
21
BGREF
ALG
22
BGGND
ALG
53
TSTMODE
I
1, 2,
3,5,
15 – 18,
20,
23 – 27,
30 - 32,
35, 42,
44,
49 – 52,
54, 56,
69, 70,
73 – 78,
80, 87,
89, 98,
99, 100
Power and Ground:
The power (VCC) and ground (GND) pins of the DM9801A are grouped in pairs of two categories - Digital
Circuitry Power/Ground Pairs and Analog Circuitry Power/Ground Pair.
14, 48,
55, 79,
88,
4, 71, 72
DVCC
P
Digital logic power supply
28, 29,
38, 39
19, 33,
34, 43
NC
DGND
P
Digital logic ground
AGND
P
Analog circuit ground
AVCC
P
Analog circuit power supply
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