Tektronix RTX100B, Service Manual

Page: 27 / 178

Specifications
RTX100B ISDB-T RF Signal Generator Service Manual
1-5
Table 1-2: Mainframe (Cont.)
Characteristics Description
Clock input
Frequency 160 kHz to 25 MHz (parallel clock)
1.28 MHz to 32 MHz (serial clock)
Input level, typical 0.5 V to 3.0 V
External trigger input/MISC output
Connector type BNC
Input impedance, typical 1 k
Ω
Threshold level Rising and falling edges are programmable.
High level
>
3.5 V (maximum input voltage: 7 V)
Low level
<
0.8 V
Output level
High level
>
2.2 V (with 50
Ω
termination)
Low level
<
0.8 V (with 50
Ω
termination)
Output impedance 50
Ω
PLL
Frequency 50 MHz to 100 MHz, locked to reference clock
Output clock 50 MHz maximum (serial clock)
26.75 MHz maximum (parallel clock)
Output rate 214 Mbps maximum
64 Kbps minimum
TS clock
(Internal and external
reference, 27 MHz and 10 MHz)
TS clock = (X / (2 * Y * Z) ) * 27 MHz
15362
<
X
<
31248
1686
<
Y
<
3376
2
≤
Z
≤
65536
(External parallel clock) TS clock = (X / (2 * Y * Z) ) * external parallel clock, 214 MHz maximum
15632
<
X
<
31248
1
<
Y
<
16383
2
≤
Z
≤
65536
(External serial clock) TS clock = (X / (2 * Y * Z) ) * external serial clock / 8,32 MHz maximum
15632
<
X
<
31248
1
<
Y
<
16383
2
≤
Z
≤
65536
P/N and Jitter (serial clock)
<
--104 dBc/Hz at 21.455707 MHz +20 kHz (RBW=300 Hz)
SPI interface
Connector type D-sub, 25 pin
Data rate 256 Kbps to 214 Mbps