Table 1. Pin Definitions for HDMP-0480.
Pin Name
TO_NODE[0]+
TO_NODE[0]-
TO_NODE[1]+
TO_NODE[1]-
TO_NODE[2]+
TO_NODE[2]-
TO_NODE[3]+
TO_NODE[3]-
TO_NODE[4]+
TO_NODE[4]-
TO_NODE[5]+
TO_NODE[5]-
TO_NODE[6]+
TO_NODE[6]-
TO_NODE[7]+
TO_NODE[7]-
FM_NODE[0]+
FM_NODE[0]-
FM_NODE[1]+
FM_NODE[1]-
FM_NODE[2]+
FM_NODE[2]-
FM_NODE[3]+
FM_NODE[3]-
FM_NODE[4]+
FM_NODE[4]-
FM_NODE[5]+
FM_NODE[5]-
FM_NODE[6]+
FM_NODE[6]-
FM_NODE[7]+
FM_NODE[7]-
BYPASS[0]-
BYPASS[1]-
BYPASS[2]-
BYPASS[3]-
BYPASS[4]-
BYPASS[5]-
BYPASS[6]-
BYPASS[7]-
FM_NODE[7]_AV
Pin
20
19
23
22
32
31
35
34
44
43
47
46
57
56
60
59
16
15
26
25
29
28
38
37
41
40
51
50
54
53
63
62
13
24
30
36
42
49
55
1
14
Pin Type
HS_OUT
Pin Description
Serial Data Outputs:
High-speed outputs to a hard disk drive or to a cable input.
HS_IN
Serial Data Inputs:
High-speed inputs from a hard disk drive or from a cable output.
I-LVTTL
Bypass Inputs:
For “disk bypassed” mode, connect BYPASS[n]- to GND through a1k resistor.
For “disk in loop” mode, float HIGH.
O-LVTTL
Amplitude Valid:
Indicates acceptable signal amplitude on the FM_NODE[7]± inputs.
If (FM_NODE[7]+ - FM_NODE[7]-) >= 400 mV peak-to-peak, FM_NODE[7]_AV = 1
If 400 mV > (FM_NODE[7]+ - FM_NODE[7]-) > 100 mV, FM_NODE[7]_AV = unpredictable
If 100 mV >= (FM_NODE[7]+ - FM_NODE[7]-), FM_NODE[7]_AV = 0
Table 1 is continued on next page.
4
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