CS61584A Cirrus Logic, Inc., CS61584A Datasheet - Page 6

• Manufacturer Part Number: CS61584A
• Description: Dual T1/e1 Line Interface
• Manufacturer: Cirrus Logic, Inc.

6
ANALOG CHARACTERISTICS
Notes: 7. For input amplitude of 1.2 V
6
Receiver
RTIP/RRING Differential Input Impedance
Sensitivity Below DSX-1 (0 dB = 2.4 V)
Loss of Signal Threshold
Data Decision Threshold
Allowable Consecutive Zeros before LOS
Receiver Input Jitter Tolerance (DSX-1, E1)
Receiver Return Loss
Jitter Attenuator
Jitter Attenuator Corner Frequency
Attenuation at 10 kHz Jitter Frequency
Attenuator Input Jitter Tolerance
(Before Onset of FIFO Overflow or Underflow Protection)
Transmitter
Arbitrary Pulse Amplitude at Transformer Secondary
10. For input amplitude of 4.14 V
11. Jitter tolerance increases at lower frequencies. Refer to the Receiver section.
12. Not production tested. Parameters guaranteed by design and characterization.
13. Typical performance using the line interface circuitry recommended in the Applications section.
14. Return loss = 20 log
15. Attenuation measured with sinusoidal input jitter equal to 3/4 of measured jitter tolerance. Circuit
8. For input amplitude of 0.5 V
9. For input amplitude of 1.07 V
z
attenuates jitter at 20 dB/decade above the corner frequency. Output jitter can increase significantly
when more than 28 UI's are input to the attenuator. The jitter attenuator -3 dB knee in T1 mode is
selectable for 4.0 Hz or 1.25 Hz. Refer to the Jitter Attenuator section.
0
= cable impedance.
Parameter
T1, DSX-1
T1, FCC Part 68 and E1 (Note
10 Hz and below
2 kHz
10 kHz - 100 kHz
51 kHz - 102 kHz
102 kHz - 2.048 MHz
2.048 MHz - 3.072 MHz
T1
E1
T1, DSX-1
T1, DS1
E1, 75
E1, 120
10
ABS((z
(Notes 12, 13, and 14)
pk
pk
pk
pk
1
(Notes 12 and 15)
(Notes 12 and 15)
to 4.14 V
to 1.2 V
+ z
to 4.14 V
to 5.0 V
(T
0
) / (z
A
DS261PP5
= -40 to 85 °C; power supply pins within ±5% of nominal.)
pk
(Note 10)
(Note 12)
1
(Note 11)
pk
pk
, and 4.14 V
(Note 7)
(Note 8)
- z
pk
.
.
.
0
)) where z
9)
Symbol
pk
1
to 5.0 V
= impedance of the transmitter or receiver, and
pk
.
1.25
Min
160
300
6.0
0.4
60
55
45
40
12
18
14
28
-
-
-
-
-
-
-
-
-
-13.6
1.25
Typ
175
0.3
4.0
20
65
50
22
24
22
60
43
73
52
43
52
-
-
-
-
-
CS61584A
CS61584A
Max
190
70
75
55
60
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
DS261PP5
DS261F1
UI
mV/LS
Peak
Unit
% of
bits
k
dB
dB
Hz
dB
UI
pk-pk
V
B