GS3140 Datasheet, PDF (2/40 Pages) Semtech Corporation – Multi-Rate Adaptive 3G SDI Equalizer

The differential output can be DC-coupled to Semtech’s
reclockers and cable drivers, as well as industry-standard
+1.2V, +1.8V and +2.5V CML logic by changing the voltage
applied to the VCC_O pin.
The GS3140 also features programmable output
de-emphasis with eight user-selectable operating levels to
support long PCB traces at the output of the device. The
output swing can be programmed, via the user interface,
from approximately 250mV_ppd to 1V_ppd in 50mV_ppd steps.
The device comes in a 16-pin, 4mm x 4mm QFN–COL
package.
Power consumption of the GS3140 is typically 84mW when
DC-coupled to a +1.2V termination voltage with
OUTPUT_SWING = 0011_b (see Table 4-2).
The GS3140 is Pb-free, and the encapsulation compound
does not contain halogenated flame retardant.
This component and all homogeneous subcomponents are
RoHS compliant.
INT
CS
SCLK
SDIN
SDOUT
VCC_A
Control and Status
VCC_O
SDI
SDI
VEE_A
Equalizer
DC Restore
Output Trace
Driver
AGC
AGC AGC
GS3140 Functional Block Diagram
DDO
DDO
VCC_D
VEE_O
GS3140
Final Data Sheet
PDS-060939
Rev.1
May 2015
www.semtech.com
2 of 40
Semtech
Proprietary & Confidential