GS2975A Datasheet, PDF (21/27 Pages) Gennum Corporation – HD-LINX® III Multi-Rate SDI Automatic Reclocker with Dual Differential Outputs

t _LA
t _LD
DATA
LOS
Figure 4-4: LOS signal timing
NOTE: LOS is sensitive to transitions appearing at the input, and does not distinguish
between transitions caused by input data, and transitions due to noise.
4.11 Output Drivers and Output Mute
The GS2975A offers a choice of dual reclocked data outputs or one data output and one
recovered clock output. Table 4-3 shows the correlation of the output pins to the
corresponding input select pins.
Table 4-3: Configuration of Output Drivers and Output Mute Pins
DDO_MUTE
RCO_MUTE
DATA/CLOCK
1
1
0
1
1
1
0
1
0
0
1
1
1
0
X
0
0
X
NOTE:
MUTE = Outputs latched at previous data bit.
Power down = Outputs pulled to V_cc through 50Ω resistor.
DDO0
DATA
DATA
MUTE
MUTE
DATA
MUTE
RCO/DDO1
CLOCK
DATA
CLOCK
MUTE
Power Down
Power Down
GS2975A HD-LINX® III Multi-Rate SDI Automatic
Reclocker with Dual Differential Outputs
Data Sheet
41487 - 4
April 2009
21 of 27