1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 ? o
o
? ? o
i
i
? ? ? ? i
i
i
i
? ? ? v ttl
od01
od00
gnd
v ttl
oclk74t
xtest2
xtest3
v dd
v dd
gnd
gnd
icnt0
icnt1
icnt2
icnt3
nc
nc
v dd
nc pin
no. i/o signal 21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40 ? ? ? ? ? ? ? o
o
? ? i
i
? ? i
i
? ? nc
gnd
v ecl
nc
nc
v ecl
v ecl
oclk74en
oclk74e
gnd
gnd
tclk148n
tclk148
gnd
v ecl
idn
id
gnd
nc
nc pin
no. i/o signal 41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60 o
? ? o
? i
i
? ? ? ? ? o
? o
o
? o
o
oltn
nc
nc
olt
v ss
xtest1
xrst
nc
gnd
gnd
v dd
v dd
trsfg
v ttl
od19
od18
gnd
od17
od16
v ttl pin
no. i/o signal 61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80 o
o
? o
o
? o
o
? o
o
? o
o
? o
o
? o
o od15
od14
gnd
od13
od12
gnd
od11
od10
v ttl
od09
od08
gnd
od07
od06
v ttl
od05
od04
gnd
od03
od02 pin
no. i/o signal 61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80 40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
gnd
v ttl
v dd
v dd
gnd
gnd
nc
nc
v dd
nc 60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41 v ttl
gnd
v ttl
v dd
v dd
gnd
gnd
nc
v ss
nc
nc
gnd
gnd
v ttl
gnd
v ttl
gnd nc
nc
gnd
v ecl
gnd
gnd
gnd
v ecl
v ecl
nc
nc
v ecl
gnd
nc 1.5 gbps receiver ?op view CXG8004Q (1/3)
il08 v ttl
CXG8004Q (2/3)
: parallel clock delay control
: 1.485 gbps serial data
: inverted 1.485 gbps serial data
: external clock (1.485 ghz)
: inverted external clock (1.485 ghz)
: reset
: nrzi ? nrz conversion and descrambler control
: trs detector control
: ch/yh flag detector control
: 20 bits parallel signal
: 74.25 mhz parallel clock (ecl level)
: inverted 74.25 mhz parallel clock (ecl level)
: 4.25 mhz parallel clock (lvttl level)
: retiming data of discriminator
: inverted data of discriminator
: trs detector inputs
icnt0 - icnt3
id
idn
tclk148
tclk148n
xrst
xtest1
xtest2
xtest3
outputs
od00 - od19
oclk74e
oclk74en
oclk74t
olt
oltn
trsfg
CXG8004Q (3/3) nrzi nrz
conv. ?20 1 : 20
separator variable
delay discrimi-
nator sp cbr timing
ref.
detector x 9 + x 4 + 1
de scrambler sw xtest1 46 xtest2 7 xtest3 8 icnt0 - icnt3 13 - 16 id 37 idn data 53 trseg 6 oclk74t 28 oclk74en 29 20 oclk74e 44 olt 41 oltn 3, 2, 80, 79,
77, 76, 74, 73,
71, 70, 68, 67,
65, 64, 62, 61,
59, 58, 56, 55 od00 - od19 1.485 ghz high-speed clock 36 tclk148 33 tclk148n 32 4
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