HDMP-0480 Datasheet, PDF (4/11 Pages) Agilent(Hewlett-Packard) – Octal Cell Port Bypass Circuit without Clock and Data Recovery

Table 1. Pin Definitions for HDMP-0480.
Pin Name Pin Pin Type Pin Description
TO_NODE[0]+ 20
TO_NODE[0]- 19
TO_NODE[1]+ 23
TO_NODE[1]- 22
TO_NODE[2]+ 32
TO_NODE[2]- 31
TO_NODE[3]+ 35
TO_NODE[3]- 34
TO_NODE[4]+ 44
TO_NODE[4]- 43
TO_NODE[5]+ 47
TO_NODE[5]- 46
TO_NODE[6]+ 57
TO_NODE[6]- 56
TO_NODE[7]+ 60
TO_NODE[7]- 59
FM_NODE[0]+ 16
FM_NODE[0]- 15
FM_NODE[1]+ 26
FM_NODE[1]- 25
FM_NODE[2]+ 29
FM_NODE[2]- 28
FM_NODE[3]+ 38
FM_NODE[3]- 37
FM_NODE[4]+ 41
FM_NODE[4]- 40
FM_NODE[5]+ 51
FM_NODE[5]- 50
FM_NODE[6]+ 54
FM_NODE[6]- 53
FM_NODE[7]+ 63
FM_NODE[7]- 62
BYPASS[0]-
13
BYPASS[1]-
24
BYPASS[2]-
30
BYPASS[3]-
36
BYPASS[4]-
42
BYPASS[5]-
49
BYPASS[6]-
55
BYPASS[7]-
1
FM_NODE[7]_AV 14
HS_OUT
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