Atec Rohde-Schwarz-CMW500 - Manual (Page 67)

Version 11.00, May 2013
Rohde & Schwarz R&S ® CMW500 Wideband Radio Communication Tester 67
Digital I/Q 1 to 4 (R&S
®
CMW-B510F option) and
digital I/Q 5 to 8 (R&S
®
CMW-B520F option)
52
The R&S ® CMW-B510F option makes the first digital I/Q interface and AUX interface and the R&S ® CMW-B520F option makes the
second digital I/Q interface and AUX interface available on the rear of the instrument.
Digital I/Q interface
The digital I/Q interface can be used for connecting the R&S ® CMW to the digital I/Q interface of other Rohde & Schwarz instruments
(e.g. R&S ® AMU200A, R&S ® EX-IQ-Box).
DIG I/Q IN 1/3/5/7 input 26-pin MDR connector
Level LVDS
Clock rate in 100 MHz
Clock rate out 100 MHz
DIG I/Q OUT 2/4/6/8 output 26-pin MDR connector
Level LVDS
Clock rate 100 MHz
Control signals general-purpose control, for future use
6 signals 100 MHz
I/Q data
Resolution for clock rate up to 100 MHz 18 bit for I and 18 bit for Q
I/Q sample rate
Source internal, digital input, digital output,
Range 1.92 Msample/s to 100 Msample/s
Predefined values 53 standard-independent 100 Msample/s
WCDMA, LTE 1.92 Msample/s, 3.84 Msample/s,
7.68 Msample/s, 9.6 Msample/s,
15.36 Msample/s, 19.2 Msample/s,
30.72 Msample/s
I/Q enable/request rate
Digital input transfer mode 1 (enable mode) 75 MHz, 100 MHz
transfer mode 2 (request mode) 0 Hz to 100 MHz
Digital output transfer mode 1 (enable mode) 100 MHz
transfer mode 2 (request mode) 0 Hz to 100 MHz
AUX interface
The AUX interface can be used for connecting the R&S ® CMW to other instruments, e.g. to trigger, clock and enable signals.
AUX A/B/C/D bidirectional, half-duplex BNC connectors
Level 3.3 V TTL
Clock rate 0 Hz to 100 MHz
Included extras
Digital I/Q cable (two sets) same cable as included in R&S ® SMU-Z6 26-pin MDR connector
52 R&S ® CMW500 and R&S ® CMW270 only.
53 Further values in the range from 400 sample/s to 100 Msample/s can be provided on request.