GS1535B Gennum Corporation, GS1535B Datasheet - Page 7

• Manufacturer Part Number: GS1535B
• Description: Multi-rate Sdi Automatic Reclocker
• Manufacturer: Gennum Corporation

Table 1-1: GS1535B / GS9065B Pin Descriptions (Continued)
Pin Number
35, 38 - 42
24, 25, 26
27
28
29
30
31
33
34
36
SS[2:0]
LD
SD/HD
KBB
Name
ASI/177
RSVD
VCC_DIG
VEE_DIG
RSVD
DDO_MUTE
40066 - 0
Type
Bi-directional
Logic Input
Output
Reserved
Power
Power
Output
Analog Input
Reserved
Logic Input
August 2006
Description
When AUTO/MAN is HIGH, SS[0:2] are outputs, displaying the data rate to
which the PLL has locked.
When AUTO/MAN is LOW, SS[0:2] are inputs, forcing the PLL to lock only to a
selected data rate
.
* Only applies to the GS1535B. For the GS9065B, when AUTO/MAN is LOW, the
pin settings SS[0:2] = 101 will be ignored by the device.
When set HIGH, the device disables the 177Mb/s data rate in the data rate
detection circuit. This prevents a false lock to 177Mb/s when using DVB-ASI.
When set LOW, 177Mb/s lock is possible, however, if a 270Mb/s ASI signal is
applied, the device could false lock to the 177MHz signal.
Lock Detect.
This pin is set HIGH by the device when the PLL is locked.
Do not connect.
Most positive power supply connection for the internal glue logic.
Connect to 3.3V.
Most negative power supply connection for the internal glue logic.
Connect to GND.
GS1535B:
This signal will be set LOW by the device when the reclocker has locked to
1.485Gbps or 1.485/1.001Gbps, or when a non-SMPTE standard is applied (i.e.
the device is not locked).
It will be set HIGH when the reclocker has locked to 143Mbps, 177Mbps,
270Mbps, 360Mbps, or 540Mbps.
GS9065B:
This signal will go HIGH when the reclocker has locked to the input SD signal. It
will be LOW otherwise.
Controls the loop bandwidth of the PLL.
Leave this pin floating for serial reclocking applications.
Do not connect.
Mutes the DDO/DDO outputs, when not in bypass mode.
SS2
0
0
0
0
1
1
GS1535B / GS9065B Preliminary Data Sheet
SS1
0
0
1
1
0
0
SS0
0
1
0
1
0
1
SELECTED/FORCED
1483.5/1485*
DATA RATE
(Mb/s)
143
177
270
360
540
7 of 27