CS61310

DS440F1 FEB ‘03

5

ANALOG CHARACTERISTICS

(TA = -40

°Cto85°C; TV+, RV+ = 5.0 V ±5%; GND = 0 V)

Notes: 8. Using a 0.47 µF capacitor in series with the primary of a transformer recommended in the Applications

Section.

9. Pulse amplitude measured at the secondary side of the transformer across a 100

Ω load for line length

setting LEN2/1/0 = 0/1/0.

10. Pulse amplitude measured at the DSX-1 Cross-Connect for all line length settings from LEN2/1/0 =

0/1/1 to LEN2/1/0 = 1/1/1.

11. Assuming that jitter free clock is input to TCLK.

12. Not production tested. Parameters guaranteed by design and characterization.

13. Measured broadband through a 0.5

Ω resistor across the secondary of the transmitter transformer

during the transmission of an all ones data pattern.

14. Data decision threshold established after the receiver equalizer filters pulse overshoot and undershoot.

15. Jitter tolerance for 0 dB input signal level. Jitter tolerance increases at lower frequencies. See Figure 7.

16. See Receiver Jitter Tolerance Plot, Figure 7.

Parameter

Min

Typ

Max

Units

Transmitter

AMI Output Pulse Amplitudes

(Note 8)

T1, (FCC Part 68) (Note 9)

T1, DSX-1 (Note 10)

2.7

2.4

3.0

3.0

3.3

3.6

V

V

External Equalizer Pulse Amplitude

4.8

5.6

V

Transmitter Output Impedance

(Note 12)

Transformer turns ratio = 1:2

1.5

Ω

Transformer turns ratio = 1:1.5

FCC

DSX1

External Equalizer

44

44

44

Ω

Ω

Ω

Jitter Added by the Transmitter

(Notes 11,12)

10 Hz - 8 kHz

8 kHz - 40 kHz

10 Hz - 40 kHz

Broad Band

-

-

-

-

0.015

0.015

0.015

0.020

-

-

-

-

UI

UI

UI

UI

Power in 2 kHz band about 772 kHz

(Notes 8, 12)

12.6

15

17.9

dBm

Power in 2 kHz band about 1.544 MHz

(Notes 8, 12)

(referenced to power in 2 kHz band at 772 kHz)

-29

-38

-

dB

Positive to Negative Pulse Imbalance

(Notes 8, 12)

-

0.2

0.5

dB

Transmitter Short Circuit Current

(Notes 8, 13)

-

-

50

mA RMS

Receiver

RTIP/RRING Input Impedance

-

20k

-

Ω

Sensitivity Below DSX (0 dB = 3.0 V)

-40

30

-

-

-

-

dB

mV

Loss of Signal Threshold

-

-42

-

dB

Data Decision Threshold

(Notes 12,14)

T1, DSX-1

T1,(FCCPart68)

50

50

% of peak

% of peak

Allowable Consecutive Zeros before LOS

160

175

190

bits

Receiver Input Jitter Tolerance(Note 16)

T1:10 kHz - 100 kHz

(Note 12) 1 Hz

0.4

138

-

-

-

-

UI

UI