GS1532 Gennum Corporation, GS1532 Datasheet - Page 6

• Manufacturer Part Number: GS1532
• Description: Serializer For HD-SDI, Sd-sdi & DVB-ASI. 3.3/1.8V Supply.
• Manufacturer: Gennum Corporation

1.2 PIN DESCRIPTIONS (Continued)
GENNUM CORPORATION
NUMBER
23, 24
PIN
18
19
20
21
22
SMPTE_BYPASS
SDO_EN/DIS
SDO, SDO
CD_GND
CD_VDD
NAME
RSET
(Continued)
(Continued)
(Continued)
Synchronous
Synchronous
TIMING
Analog
Analog
Analog
Analog
Non
Non
Input Power
Input Power
Output
TYPE
Input
Input
Input
6
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Used to enable / disable all SMPTE encoding, scrambling and
word alignment.
When set LOW, SMPTE scrambling and encoding will be disabled.
When set HIGH, the device will carry out SMPTE scrambling /
coding. (DVB_ASI must be LOW)
CONTROL SIGNAL INPUT
An external 1% resistor connected to this input is used to set the
SDO / SDO output signal amplitude.
Power supply for the serial digital cable driver 1.8V DC
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Used to enable or disable the serial digital output stage.
When SDO_EN/DIS is LOW, the serial digital output signals SDO
and SDO are disabled and become high impedance.
When connected to logic HIGH, the serial digital output signals
SDO and SDO are enabled.
GND connection - serial digital cable driver
SERIAL DATA OUTPUT SIGNAL
Serial digital output signal from the parallel to serial converter
operating at 1.485Gb/s, 1.485 /1.001Gb/s, or 270Mb/s.
The slew rate of the output is automatically controlled to meet
SMPTE 292M and 259M specifications according to the setting of
the SD/HD pin.
NOTE: The SDO / SDO output signals will be forced to a logic LOW
level when the LOCKED pin = LOW.
DESCRIPTION
21498 - 0