SC1100 datasheet(328/348 Pages) NSC

328 / 348 page

www.national.com

328

Revision 1.1

Electrical Specifications (Continued)

tUSB_DJU22

Source differential driver jitter4 for

paired transactions

–150

150

7-36

Function (downstream)

tUSB_SE2

Source EOP width4, 5

1.25

1.5

µs7-37

tUSB_DE2

Differential to EOP 5 transition skew

–40

100

7-37

tUSB_RJD21

Receiver Data Jitter Tolerance4 for

consecutive transactions

–152

152

7-38

Host (upstream)

tUSB_RJD22

Receiver Data Jitter Tolerance4 for

paired transactions

–200

200

7-38

Host (upstream)

tUSB_RJU21

Receiver Data Jitter Tolerance4 for

consecutive transactions

–75

7-38

Function (downstream)

tUSB_RJU22

Receiver Data Jitter Tolerance4 for

paired transactions

–45

7-38

Function (downstream)

Low Speed Receiver EOP Width5

tUSB_RE21

Must reject as EOP

330

7-36

tUSB_RE22

Must accept as EOP

675

7-36

Unless otherwise specified, all timings use a 50 pF capacitive load (CL) to ground.

Full-speed timing has a 1.5 K

Ω pull-up to 2.8 V on the DPOS_Port1,2,3 lines.

Timing difference between the differential data signals (DPOS_PORT1,2,3 and DNEG_PORT1,2,3).

Measured at the crossover point of differential data signals (DPOS_PORT1,2,3 and DNEG_PORT1,2,3).

EOP is the End of Packet where DPOS_PORTt = DNEG_PORT = SE0. SE0 occurs when output level voltage

≤ V

(Min).

CL = 350 pF.

Table 7-23. USB Interface Signals (Continued)

Symbol

Parameter

Min

Max

Unit

Figure

Comments

SC1100 Datasheet(PDF) 328 Page - National Semiconductor (TI)

SC1100 Datasheet(HTML) 328 Page - National Semiconductor (TI)

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL