CS61574A Datasheet, PDF (5/44 Pages) Cirrus Logic – T1/E1 LINE INTERFACE

CS61574A CS61575
ANALOG SPECIFICATIONS (TA = -40°C to 85°C; TV+, RV+ = 5.0V ±5%; GND = 0V)
Parameter
Min
Typ
Max
Units
Jitter Attenuator
Jitter Attenuation Curve Corner Frequency (Notes 17, 25)
CS61574A
-
6
-
Hz
CS61575
-
3
-
Hz
CS61574A T1 Receiver Jitter Transfer
(Notes 25, 26)
Jitter Freq. [Hz]
Amplitude [UIpp]
10
10
3.0
6.0
100
10
20
30
500
10
35
40
1k
5
40
50
10k, 40k
0.3
40
50
-
dB
-
dB
-
dB
-
dB
-
dB
CS61575 T1 Receiver Jitter Transfer
(Notes 25, 26)
Jitter Freq. [Hz]
Amplitude [UIpp]
10
10
6.0
9.0
100
10
23
33
500
10
38
43
1k
5
40
50
10k, 40k
0.3
40
50
-
dB
-
dB
-
dB
-
dB
-
dB
CS61574A E1 Receiver Jitter Transfer (Notes 26, 27, 28)
Jitter Freq. [Hz]
Amplitude [UIpp]
10
1.5
3.0
6.0
20
1.5
6.0
12
100
1.5
20
32
400
1.5
30
40
1k
1.5
35
45
10k, 100k
0.2
35
45
-
dB
-
dB
-
dB
-
dB
-
dB
-
dB
CS61575 E1 Receiver Jitter Transfer (Notes 26, 27, 28)
Jitter Freq. [Hz]
Amplitude [UIpp]
10
1.5
6.0
12
20
1.5
12
18
100
1.5
22
29
400
1.5
30
39
1k
1.5
35
45
10k, 100k
0.2
35
45
-
dB
-
dB
-
dB
-
dB
-
dB
-
dB
Attenuator Input Jitter Tolerance
(Notes 17, 28)
(Before Onset of FIFO Overflow or Underflow Protection)
CS61574A
12
23
CS61575
138
-
-
UI
-
UI
Notes: 25. Attenuation measured at the demodulator output of an HP3785B with input jitter equal to 3/4 of
measured jitter tolerance using a measurement bandwidth of 1 Hz (10<f<100Hz), 4Hz (100<f<1000
Hz) and 10 Hz (f> 1kHz) centered around the jitter frequency. With a 2¹⁵-1 PRBS data pattern.
26. Crystal must meet specifications described in CXT6176/CXT8192 data sheet.
27. Jitter measured at the demodulator output of an HP3785A (or equivalent) using a measurement
bandwidth not to exceed 20 Hz centered around the jitter frequency. With a 2¹⁵-1 PRBS data pattern.
28. Jitter below 100 kHz and within the attenuator’s input jitter tolerance is not translated or aliased to
other frequencies. Output jitter increases significantly when attenuator input jitter tolerance is
exceeded.
DS154F2
5