GX3202 Datasheet, PDF (21/49 Pages) Semtech Corporation – Crosspoint Switch with Trace Equalization and Output De-emphasis

Table 4-1: Serial Data Input
EQ_BOOST[287:0],
EXT_PG0_EQ_BOOST and
EXT_PG1_EQ_BOOST bits 1:0
(binary)
00
01
10
11
EQ_TERMINATION[287:0],
EXT_PG0_EQ_TERMINATION
and
EXT_PG1_EQ_TERMINATION
bits 3:3
0
1
EQ_POWERDOWN[287:0],
EXT_PG0_EQ_POWERDOWN
and
EXT_PG1_EQ_POWERDOWN
bits 4:4
0
1
Boost Applied (@ nominal 1.5GHz)
0dB boost
3.5dB boost
7.6dB boost
12dB boost
0” to 6” (15 cm) trace
6” (15 cm) to 16”
(40 cm) trace
16” (40 cm) to 35”
(89 cm) trace
35” (89 cm) to 47”
(119 cm) trace
Input Termination Common Mode Point Switch to
VCC_IN_1, VCC_IN_2
Open (see Figure 3-1)
Closed (see Figure 3-1)
Equalizer Power
On
Off
GX3202 202 x 202 3.5Gb/s Crosspoint
Data Sheet
56077 - 1
October 2012
21 of 49
Proprietary & Confidential