
436 Chapter 15
W-CDMA Uplink Digital Modulation for Receiver Test
W-CDMA Uplink Concepts
DPCH mode. For PRACH mode, refer to Table 15-6 on page 437.
Table 15-5 Connector Descriptions for DPCH Mode
Connector
Label
Connector
Type
Input/
Output
Assigned Signal
PATTERN
TRIGGER IN
BNC Input Frame sync trigger. This signal
determines the SFN frame timing of the
ESG so it is synchronous with the base
station.
PATTERN
TRIGGER IN 2
AUX I/O Pin 17 Input Compressed mode stop trigger.
Compressed mode must be active. The
trigger instructs the signal generator to
stop the compressed mode pattern at the
frame number specified in the Stop CFN#
data field.
ALT POWER
IN
AUX I/O Pin 16 Input Trigger for user-defined TPC bits.
BURST GATE
IN
BNC Input Compressed mode start trigger or the TPC
control signal.
The compressed mode or TPC mode must
be active. The compressed mode start
trigger instructs the signal generator to
begin the compressed mode pattern. The
TPC control signal instructs the ESG to
increase or decrease the DPCH signal
power relative to the carrier power.
BASEBAND
GEN REF IN
BNC Input External system clock in. This connector is
used for chip clock input when using
external data clock sources. To use an
external signal source as the data clock
input, press
BBG Chip Clock Ext Int to Ext
or send the appropriate SCPI command.
This clock rate can be multiplied by
setting the
Ext Clock Rate X1 X2 X4 softkey
to either x2 or x4.
10 MHz IN BNC Input 10 MHz reference in.
Kommentare zu diesen Handbüchern