GS2974A Datasheet, PDF (4/16 Pages) Gennum Corporation – HD-LINX III Adaptive Cable Equalizer

1. Pin Out
1.1 GS2974A Pin Assignment
16
VEE_A 1
15
14
13
12 VEE_D
SDI 2
SDI ³
VEE_A ⁴
5
GS2974A
(top view)
6
7
Figure 1-1: 16-Pin QFN
11 _SDO
10 SDO
9 _{VEE_D}
8
Center Pad
(bottom of package, internally
bonded to VEE_A)
1.2 GS2974A Pin Descriptions
Table 1-1: GS2974A Pin Descriptions
Pin Number
1, 4
Name
VEE_A
Timing
Analog
2, 3
SDI, SDI
Analog
5, 6
AGC, AGC
Analog
7
BYPASS
Not
Synchronous
8
MCLADJ
Analog
9
VEE_D
Analog
Type
Power
Input
–
Input
Input
Power
Description
Most negative power supply for analog circuitry.
Connect to GND.
Serial digital differential input.
External AGC capacitor.
Connect pin 5 and pin 6 together as shown in the Typical
Application Circuit on page 12.
Forces the Equalizing and DC RESTORE stages into bypass mode
when HIGH. No equalization occurs in this mode.
Maximum cable length adjust.
Adjusts the approximate maximum amount of cable to be
equalized. See Section 4.3. and Section 4.4
Most negative power supply for the digital circuitry and output
buffer.
Connect to GND.
GS2974A HD-LINX™ III Adaptive Cable Equalizer
Data Sheet
42216 - 3
January 2009
4 of 16