CS61305A-IL1 Cirrus Logic, Inc., CS61305A-IL1 Datasheet - Page 4

• Manufacturer Part Number: CS61305A-IL1
• Description: T1/E1 line interface
• Manufacturer: Cirrus Logic, Inc.

ANALOG SPECIFICATIONS
Notes: 19. Attenuation measured with input jitter equal to 3/4 of measured jitter tolerance. Circuit attenuates
E1 SWITCHING CHARACTERISTICS
GND = 0V; Inputs: Logic 0 = 0V, Logic 1 = RV+; See Figures 1, 2, & 3)
4
Transmitter Jitter Attenuator
Jitter Attenuation Curve Corner Frequency
Attenuation at 10kHz Jitter Frequency
Attenuator Input Jitter Tolerance
(Before Onset of FIFO Overflow or Underflow Protection)
Receiver
RTIP/RRING Input Impedance
Sensitivity Below DSX (0dB = 2.4V)
Data Decision Threshold
Allowable Consecutive Zeros before LOS
Receiver Input Jitter Tolerance
Loss of Signal Threshold
Crystal Frequency
ACLKI Duty Cycle
ACLKI Frequency
RCLK Cycle Width
Rise Time, All Digital Outputs
Fall Time, All Digital Outputs
TCLK Frequency
TCLK Pulse Width
TPOS/TNEG (TDATA) to TCLK Falling Setup Time
TCLK Falling to TPOS/TNEG (TDATA) Hold Time
RPOS/RNEG Valid Before RCLK Falling
RDATA Valid Before RCLK Falling
RPOS/RNEG Valid Before RCLK Rising
RPOS/RNEG Valid After RCLK Falling
RDATA Valid After RCLK Falling
RPOS/RNEG Valid After RCLK Rising
20. For input amplitude of 1.2 V
21. For input amplitude of 1.05 V
22. Jitter tolerance increases at lower frequencies. See Figure 12.
jitter at 20 dB/decade above the corner frequency. See Figure 10. Output jitter can increase
significantly when more than 12 UI’s are input to the attenuator. See discussion in the text section.
T1, DSX-1
T1, (FCC Part 68) and E1
10kHz - 100kHz
2kHz
10Hz and below
Parameter
Parameter
pk
pk
(TA = -40 C to 85 C; TV+, RV+ = 5.0V 5%; GND = 0V)
to 4.14 V
to 3.3 V
(Notes 16, 19)
(Notes 16, 19)
(Notes 16, 19)
(Notes 27, 28)
(Notes 29, 30)
pk
pk
(Note 20)
(Note 21)
(Note 22)
(Note 23)
(Note 24)
(Note 25)
(Note 26)
(Note 26)
(Note 27)
(Note 29)
(Note 28)
(Note 27)
(Note 29)
(Note 28)
.
.
(TA = -40 C to 85 C; TV+, RV+ = 5.0V 5%;
t
Symbol
pwh3
t
t
t
f
t
-13.6
pwh1
pwh2
t
t
t
t
f
aclki
pwl1
Min
pw1
138
500
160
300
t
t
t
t
su2
su1
su1
su1
0.4
6.0
tclk
f
53
45
t
t
h2
h1
h1
h1
c
r
-
-
-
-
f
/t
pw3
Min
310
120
150
100
100
100
100
100
100
40
90
80
25
25
-
-
-
-
-
0.30
Typ
175
50k
50
65
50
3
-
-
-
-
-
-
8.192000
2.048
2.048
Typ
488
140
348
194
194
194
194
194
194
-
-
-
-
-
-
-
CS61305A
Max
190
77
55
-
-
-
-
-
-
-
-
-
-
Max
620
190
500
340
60
85
85
-
-
-
-
-
-
-
-
-
-
-
-
DS157PP3
% of peak
% of peak
Units
bits
mV
Hz
dB
dB
UI
UI
UI
UI
V
Units
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%