CS61583 datasheet(5/44 Pages) CIRRUS

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ANALOG SPECIFICATIONS (TA = -40 to 85 °C; power supply pins within ±5% of nominal)

Parameter

Min

Typ

Max

Units

Transmitter

AMI Output Pulse Amplitudes

(Note 16)

E1, 75

Ω

(Note 17)

E1, 120

Ω

(Note 18)

T1, DSX-1

(Note 19)

2.14

2.7

2.4

2.37

3.0

2.6

3.3

3.6

Recommended Transmitter Output Load

(Note 16)

E1, 75

Ω

E1, 120

Ω

76.6

57.4

90.6

Ω

Jitter Added During

10 Hz - 8 kHz

Remote Loopback

8 kHz - 40 kHz

10 Hz - 40 kHz

Broad Band

(Note 20)

0.005

0.008

0.010

0.015

Power in 2 kHz band about 772 kHz

(Notes 14 and 21)

(DSX-1 only)

12.6

17.9

dBm

Power in 2 kHz band about 1.544 MHz

(Notes 14 and 21))

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

(DSX-1 only)

-29

-38

Positive to Negative Pulse Imbalance

(Notes 14 and 21)

T1, DSX-1

E1, amplitude at center of pulse interval

E1, width at 50% of nominal amplitude

-5

0.2

0.5

Transmitter Return Loss

(Notes 14, 21, and 22)

51 kHz - 102 kHz

102 kHz - 2.048 MHz

2.048 MHz - 3.072 MHz

E1 Short Circuit Current

(Note 23)

mArms

E1 and DSX-1 Output Pulse Rise/Fall Times

(Note 24)

E1 Pulse Width (at 50% of peak amplitude)

244

E1 Pulse Amplitude

E1, 75

Ω

for a space

E1, 120

Ω

-0.237

-0.3

0.237

0.3

Notes: 16. Using a transformer that meets the specifications in the Applications section.

17. Measured across 75

Ω at the output of the transmit transformer for CON2/1/0 = 0/0/0.

18. Measured across 120

Ω at the output of the transmit transformer for CON2/1/0 = 0/0/1.

19. Measured at the DSX-1 cross-connect for line length settings CON2/1/0 = 0/1/0, 0/1/1,

1/0/0, 1/0/1, and 1/1/0 after the appropriate length of #22 ABAM cable specified in Table 1.

20. Input signal to RTIP/RRING is jitter free. Values will reduce slightly if jitter free clock is input to TCLK.

21. Typical performance using the line interface circuitry recommended in the Applications section.

22. Return loss = 20 log 10 ABS((z1+z0)/(z1-z0)) where z1=impedance of the transmitter or receiver, and

z0=cable impedance.

23. Transformer secondary shorted with 0.5

Ω resistor during the transmission of 100% ones.

24. At transformer secondary and measured from 10% to 90% of amplitude.

CS61583

DS172PP5

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