Tektronix RTX100B, Service Manual

Page: 28 / 178

Specifications
1-6
RTX100B ISDB-T RF Signal Generator Service Manual
Table 1-2: Mainframe (Cont.)
Characteristics Description
Pin assignments 1 DCLK
2 GND
3 to 10 DATA 7 to DATA 0
11 DVALID
12 PSYNC
13 Shield
14 DCLK
15 GND
16 to 23 DATA 7 to DATA 0
24 DVALID
25 PSYNC
Output
Output level, typical 330 mV to 550 mV (termination: internal 100
Ω ,
external 100
Ω
), bus LVDS with 50
Ω
termination
Offset 1.1 V to 1.5 V
Output resistance, typical 100
Ω
, between differential outputs (output off)
Data delay, typical
±
5 ns from the falling edge of DCLK (see Figure 1-1 on page 1-11)
Input
Input level, typical
>
+100 mV,
<
--100 mV, (RI+)--(RI--) with 100
Ω
termination
Input resistance, typical 100
Ω
(between differential inputs)
Clock pulse width, typical T/2
±
T/10, T=1/f (f=byte clock frequency) (see Figure 1-1 on page 1-11)
Data hold time, typical T/2
±
T/10, T=1/f (f=byte clock frequency, data are latched on DCLK rising edge)
(see Figure 1-1 on page 1-11)
ASI interface
Standard conformance EN 50083-9 Annex B
Connector type BNC
Impedance 75
Ω
Data rate 256 Kbps to 214 Mbps
Output
Number of outputs 1
Output voltage 800 mV
±
10%
Jitter
≤
0.2 UI p--p
Rise/fall time
≤
1.2 ns (20% to 80%)
Return loss
<
--17 dB (5 MHz to 270 MHz) into 75
Ω
load