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ACS8510 Datasheet(PDF) 13 Page - Semtech Corporation |
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ACS8510 Datasheet(HTML) 13 Page - Semtech Corporation |
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13 / 69 page ![]() Revision 2.07/Jan 2001 ã2001 Semtech Corp www.semtech.com 13 ACS8510 SETS ADVANCED COMMUNCIATIONS FINAL I I I I I I I $ $ $ $ -LWWHUDQG ZDQGHUIUHTXHQF\ ORJ VFDOH I I $ I I I I I I I $ $ $ $ -LWWHUDQG ZDQGHUIUHTXHQF\ ORJ VFDOH I I $ Figure 1: Minimum Input Jitter Tolerance for inputs supporting G.783 compliant sources Table 3: Amplitude and Frequency values for Jitter Tolerance for inputs supporting G.783 compliant sources M T S l e v e l e d u ti l p m a k a e p o t k a e P )l a v r e t n I ti n u ( ) z H ( y c n e u q e r F 0 A1 A2 A3 A4 A0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F 1 - M T S0 0 8 21 1 39 35 . 15 1 . 0u 2 1u 8 7 1m 6 . 1m 6 . 5 15 2 1 . 03 . 9 10 0 5k 5 . 6k 5 6m 3 . 1 Output Clock Ports The device supports a set of main output clocks, T OUT0 and TOUT4, and a pair of secondary output clocks, 'Frame-Sync' and 'Multi-Frame-Sync'. The two main output clocks, T OUT0 and TOUT4, are independent of each other and are individually- selectable. The two secondary output clocks, 'Frame-Sync' and 'Multi-Frame-Sync', are derived from T OUT0. The frequencies of the output clocks are selectable from a range of pre-defined spot frequencies and a variety of output technologies are supported, as defined in Table 5. Performance-wise, the output ports are specified in Figures 3, 4 and 5, in terms of jitter, MTIE (and TDEV) and Phase Error, respectively. Low-speed Output Clock (T OUT4) The T OUT4 clock is supplied on two output ports, T O8 and TO9. The former port will provide an AMI signal carrying a composite clock of 64 kHz and 8 kHz, according to ITU Recommendation G.703. The latter port will provide a TTL/CMOS signal at either 1.544 MHz or 2.048 MHz, depending on the setting of the SONSDHB pin. High-speed Output Clock (Part of T OUT0) The T OUT0 port has multiple outputs. Outputs TO1 and T O2 are TTL/CMOS output with a choice of 11 different frequencies up to 51.84 MHz. Outputs T O3 to TO5 are all TTL/CMOS outputs with fixed frequencies of 19.44 MHz, 38.88 MHz and 77.76 MHz, respectively. Output T O6 is differential and can support clocks up to 155.52 MHz. Output T O7 is also differential |
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