CS61581-IL データシートの表示（PDF） - Cirrus Logic

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CS61581-IL

T1/E1 Universal Line Interface

Cirrus Logic 

CS61581

ANALOG SPECIFICATIONS (Continued)

Parameter

Min

Typ

Max

Units

Receiver

RTIP/RRING Input Impedance

Sensitivity Below DSX (0 dB = 3.0 V) Long Haul, T1

-

20k

-

Ω

-40

-

-

dB

30

-

-

mV

Sensitivity Below DSX (0 dB = 3.0 V) Long Haul, E1

-36

-

48

-

-

dB

-

mV

Sensitivity Below DSX (0 dB = 3.0 V) T1 - Short Haul

-21

-

270

-

-

dB

-

mV

Sensitivity Below G.703 (0 dB = 2.4 V) E1 - Short Haul

-15

-

430

-

-

dB

-

mV

Loss of Signal Threshold (Note 18)

Long Haul, T1 & E1

-

-42

-

dB

T1 Short Haul

-

-22

-

dB

E1 Short Haul

-

-16

-

dB

Data Decision Threshold (Note 18)

(Note 15)

T1, DSX-1

-

50

-

% of peak

T1, (FCC Part 68) and E1

-

50

-

% of peak

Allowable Consecutive Zeros before LOS

160

175

190

bits

Receiver Input Jitter Tolerance - Short Haul

(Note 16)

E1: 18 kHz - 100 kHz 0.20

-

T1: 10 kHz - 100 kHz 0.4

-

(Note 13) 2 kHz 6.0

-

(Note 18) 10 Hz and below 300

-

-

UI

-

UI

-

UI

-

UI

Receiver Input Jitter Tolerance - Long Haul

(Note 17)

E1:10 kHz - 100 kHz 0.20

-

T1:10 kHz - 100 kHz 0.4

-

(Note 13) 1 Hz 138

-

UI

-

UI

UI

Notes: 15. Data decision threshold established after the receiver equalizer filters pulse overshoot and undershoot.

16. Jitter tolerance for 0 dB input signal level. Jitter tolerance increases at lower frequencies. See Figure 8.

17. See Receiver Jitter Tolerance Plot, Figure 8.

18. Guaranteed by design.

6

DS211PP8

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