GS2975A Datasheet, PDF (7/27 Pages) Gennum Corporation – HD-LINX® III Multi-Rate SDI Automatic Reclocker with Dual Differential Outputs

Table 1-1: Pin Descriptions (Continued)
Pin Number Name
36
DDO_MUTE
Type
Logic Input
Description
Mutes the DDO0 and/or RCO/DDO1 outputs.
DDO_MUTE RCO_MUTE DATA/CLOCK DDO0
RCO/DDO1
1
1
0
DATA
CLOCK
1
1
1
DATA
DATA
0
1
0
MUTE
CLOCK
0
1
1
MUTE
MUTE
1
0
X
DATA
Power down
0
0
X
MUTE
Power down
NOTE:
MUTE = Outputs latched at previous data bit.
Power down = Outputs pulled to V_cc through 50Ω resistor.
37
38, 40
39, 45
41
42
44, 46
47
48
50, 51
52, 53
54 - 59
60
DATA/CLOCK
RCO/DDO1,
RCO/DDO1
RSV
VCC_RCO
VEE_RCO
DDO0, DDO0
VCC_DDO
VEE_DDO
XTAL_OUT+,
XTAL_OUT-
XTAL+, XTAL-
NC
VEE_CP
Logic Input
Output
Reserved
Power
Power
Output
Power
Power
Output
Input
No Connect
Power
Data/Clock select.
When set HIGH, the RCO/DDO1 pin will output a copy of the serial digital
output (DDO0).
When set LOW, the RCO/DDO1 pin will output a re-timed clock (RCO).
Serial clock or secondary data output.
When RCO_MUTE is connected to VCC, the serial digital differential clock or
secondary data output will be presented.
Do not connect.
Most positive power supply connection for the RCO/DDO1 and RCO/DDO1
output driver.
Connect to 3.3V.
Most negative power supply connection for the RCO/DDO1 and RCO/DDO1
output driver.
Connect to GND.
Differential Serial Digital Outputs.
Most positive power supply connection for the DDO0/DDO0 output driver.
Connect to 3.3V.
Most negative power supply connection for the DDO0/DDO0 output driver.
Connect to GND.
Differential outputs of the reference oscillator used for monitoring or test
purposes.
Reference crystal input. Connect to the GO1535 as shown in the Typical
Application Circuit on page 22.
Not connected internally.
Most negative power supply connection for the internal charge pump.
Connect to GND.
GS2975A HD-LINX® III Multi-Rate SDI Automatic
Reclocker with Dual Differential Outputs
Data Sheet
41487 - 4
April 2009
7 of 27