CS61574A/75 Cirrus Logic, Inc., CS61574A/75 Datasheet - Page 6

• Manufacturer Part Number: CS61574A/75
• Description: T1/E1 Line Interface Unit for Stratum-4 applications
• Manufacturer: Cirrus Logic, Inc.

T1 SWITCHING CHARACTERISTICS
GND = 0V; Inputs: Logic 0 = 0V, Logic 1 = RV+; See Figures 1, 2, & 3)
Notes: 29. The transmitted pulse width does not depend on the TCLK duty cycle.
E1 SWITCHING CHARACTERISTICS
GND = 0V; Inputs: Logic 0 = 0V, Logic 1 = RV+; See Figures 1, 2, & 3)
6
Crystal Frequency
TCLK Frequency
TCLK Pulse Width
ACLKI Duty Cycle
ACLKI Frequency
RCLK Duty Cycle
Rise Time, All Digital Outputs
Fall Time, All Digital Outputs
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
Crystal Frequency
TCLK Frequency
TCLK Pulse Width
ACLKI Duty Cycle
ACLKI Frequency
RCLK Duty Cycle
Rise Time, All Digital Outputs
Fall Time, All Digital Outputs
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
30. ACLKI provided by an external source or TCLK.
31. RCLK duty cycle will be 62.5% or 37.5% when jitter attenuator limits are reached.
32. At max load of 1.6 mA and 50 pF.
33. Host Mode (CLKE = 1).
34. Extended Hardware Mode.
35. Hardware Mode, or Host Mode (CLKE = 0).
Parameter
Parameter
(Note 32)
(Note 33)
(Note 34)
(Note 35)
(Note 32)
(Note 33)
(Note 34)
(Note 35)
(Note 26)
(Note 29)
(Note 30)
(Note 31) t
(Note 32)
(Note 33)
(Note 34)
(Note 35)
(Note 26)
(Note 29)
(Note 30)
(Note 31) t
(Note 32)
(Note 33)
(Note 34)
(Note 35)
(TA = -40 C to 85 C; TV+, RV+ = 5.0V 5%;
(TA = -40 C to 85 C; TV+, RV+ = 5.0V 5%;
t
t
pwh3
pwh1
pwh3
pwh1
Symbol
Symbol
t
t
f
f
pwh2
t
t
t
t
pwh2
t
t
t
t
f
f
aclki
aclki
t
t
t
t
t
t
t
t
su2
su1
su1
su1
su2
su1
su1
su1
tclk
tclk
f
h2
h1
h1
h1
f
h2
h1
h1
h1
t
t
t
t
c
c
r
f
r
f
/t
/t
/t
/t
pw3
pw1
pw3
pw1
Min
150
150
150
150
150
150
150
Min
150
100
100
100
100
100
100
40
45
25
25
40
45
25
25
-
-
-
-
-
-
-
-
-
-
6.176000
8.192000
CS61574A CS61575
1.544
1.544
2.048
2.048
Typ
274
274
274
274
274
274
Typ
194
194
194
194
194
194
50
50
-
-
-
-
-
-
-
-
-
-
-
-
Max
Max
500
340
60
55
85
85
60
55
85
85
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
DS154F2
Units
Units
MHz
MHz
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
%