TYPICAL APPLICATION CIRCUIT - Adjustment Free Multi-standard Serial To Parallel Convertor
Vcc
8.2nH
Serial Data
Output
1uF
75
100nF
1uF
Vcc
100nF
90.9
90.9
GS9000D
75
Vcc
SDO
37.5
SDO
VEE
RSET
VCC
SDI
SDI
VEE
1
GS9028
2
8
7
100nF
Vcc
150
LOCK
Vcc
3
4
Vcc
6
5
59
4.75k
Vcc
CLK_EN
150
22k
Vcc
150
CD
CLK_EN
Vcc
Vcc
100nF
3k3
100
4.7nF
Vcc
OEM_TEST
CLK_EN
SSI/CD
COSC
LOCK
Vcc
MOD
VCC
VEE
VEE
44
DDI
1
2
3
4
5
6
7
8
9
10
11
12
100k
Pot
VCC
A/D
HSYNC
100
SWF
VSS
VSS
VSS
PD8
PD9
43
42
41
40
39
38
37
36
35
34
33
32
31
30
VEE
SDO
SDO
VEE
SCO
SCO
VEE
NC
Vcc
NC
90.9
90.9
100
100
100
100
100
100
100
100
100
Vcc
4
SDI
SDI
SCI
SCI
SS1
SS0
SSC
5
6
7
8
9
10
11
12
3
2
1
28
27
26
25
24
23
PD7
PD6
PD5
PD4
PD3
PD2
PD1
100nF
Serial Data Input
Vcc
DDI
VCC_75
VCC
Vcc
(1) Typical value for input return loss matching
(2) The GS7025 can be replaced by either the GS9025A or GS9035A for
applications at data rates less then 270Mb/s or when equalization is not required
GS9000D and GS7025 INTERCONNECTIONS
Figure 11 shows an application of the GS9000D in a
270Mb/s serial to parallel converter. This circuit uses the
GS7025 Serial Digital Receiver. For datarates below 270Mb/s
the GS9025A can be used. If cable equalization is not
required the GS7025 or GS9025A may be replaced with a
GS9035A Reclocker IC.
The GS9028 Cable Equalizer allows a serial loop through
after the reclocker.
GENNUM CORPORATION
75
100nF
15nH (1)
37.5
75
10n
75
Vcc
10n
VEE
SDI
SDI
VCC
VEE
GS7025
(2)
29
28
27
26
25
24
23
GS9000D
22
21
20
19
Vcc
270
NC
13
14
15
16
17
18
100nF
100nF
VDD
VDD
PD0
PCLK
SWC
SCE
VDD
CD_ADJ
AGC-
100nF
100
100nF
13
14
15
16
17
18
19
20
21
22
Vcc
RVCO_RTN
VEE
LF-
LFS
LF+
VEE
VCC
AGC+
CBG
VCC
RVCO 365
100nF
1.8k
15nF
Vcc
100nF
100pF
Vcc
68k
*
22nF
3.3pF
NOTE: Value of SDO and SCO
pull-up resistors is 90.9Ω ± 1%
Fig. 11
8 of 9
18784 - 3
GENNUM [ GENNUM CORPORATION ]
