Tektronix MTG100 Manual do Utilizador descarregar pdf (Página 167)

Appendix A: Specifications

AĆ4

MTG100 & MTG300 MPEG Generator User Manual

Table AĆ1: Functional characteristics (Cont.)

Characteristics Description

SI header change MTG300 only

Target packets One selected item. If two or more sections are contained in one packet, all of the sections are

changed by the operation.

Number of packets 1 to 65535 packets (on every manual operation)

Target of change word

operation

reserved (2)

DTS value change MTG300 only

Target packet One selected PID including Video PES (except for the scrambled PES)

Number of packets Continuous

Add time 0 ms to 50 ms (90 kHz resolution)

Table AĆ2: Electrical characteristics

Characteristics Description

Clock

Reference clock For Output_clock, PCR/PTS/DTS, Packet operation timing, and TDT/STT time.

Internal 27 MHz ± 1 ppm

External 27 MHz

Output clock

Frequency 0.5 MHz to 80 MHz, Locked to Reference clock.

PLL divide ratioFYID Output Clock = (X / (Y * Z))*27MHz

(Internal and External

Reference)

1024 t X t 65536

4500 t Y t 9000

Z = 4 (32 MHz t Output clock v 80 MHz)

Z = 8 (16 MHz t Output clock v 32 MHz)

Z=16 (8MHzt Output clock v 16 MHz)

Z=32 (4MHzt Output clock v 6 MHz)

Z=64 (2MHzt Output clock v 4 MHz)

Z = 128 (1 MHz t Output clock v 2 MHz)

(External clock)

(Output clock t 24 MHz)

Output Clock = (Y / X) * 216 MHz

1024 t X t 65536

8 t Y t 16383 Output clock / 6000 t Y t Output clock / 3000

(External clock)

(Output clock w 24 MHz)

Output Clock = (Y / X) * 432 MHz

1024 t X t 65536

8 t Y t 16383 Output clock / 12000 t Y t Output clock / 6000

P/N and Jitter

t -104 dBc/Hz at 20 kHz (t 32 MHz)

t -97 dBc/Hz at 20 kHz (t 64 MHz)

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