HP ESG-D Series, User Manual

Page: 650 / 712

7-4
Operation
Digital Modulation Input/Output Relationships (Options UN3 and UN4)
Digital Modulation Input/Output Relationships (Options UN3 and UN4)
Signal generators equipped with Options UN3 or UN4 can be configured to
internally-generate pattern or framed data, the baseband generator’s clock can be
internally- or externally-supplied, and the external data clock can be set to a
normal bit clock or a symbol clock for the NADC, PDC, PHS, and TETRA
formats. Combinations of these selections will affect the inputs required and the
outputs available. The following tables specify the input requirements and the
outputs available for pattern data mode and framed data mode. (Note: Instruments
with Option 1EM will have all connectors positioned on the rear panel.)
Table 7-1. Pattern Data Mode
Data
BBG Data
Clock
External
Data
Clock
Front Panel Inputs Rear Panel Outputs
DATA
CLOCK
SYMBOL
SYNC
DATA
DATA
CLK
OUT
SYMBOL
SYNC
OUT
DATA
OUT
Internal Internal NA NA NA NA Internal
Bit Clock Internal
Symbol
Clock Internally
Generated
Data
Internal External Normal User’s Bit
Clock NA NA Internal
Bit Clock Internal
Symbol
Clock Internally
Generated
Data
Internal External Symbol User’s
Symbol
Clock NA NA Internal
Bit Clock Internal
Symbol
Clock Internally
Generated
Data
External Internal NA NA User’s
Symbol
Clock
1
1. The front panel SYMBOL SYNC and DATA inputs must be clocked by the internal bit clock output from the
rear panel DATA CLK OUT.
User’s
External
Data
1
Internal
Bit Clock User’s
Symbol
Clock User’s
External
Data
External External Normal User’s Bit
Clock User’s
Symbol
Clock User’s
External
Data Internal
Bit Clock User’s
Symbol
Clock User’s
External
Data
External External Symbol User’s
Symbol
Clock
2
2. When the user’s symbol clock is supplied to the DATA CLOCK input, it must also be supplied to the
SYMBOL SYNC input via a tee.
User’s
Symbol
Clock
2
User’s
External
Data Internal
Bit Clock User’s
Symbol
Clock User’s
External
Data