CS61304A Cirrus Logic, Inc., CS61304A Datasheet - Page 5

• Manufacturer Part Number: CS61304A
• Description: T1-E1 Line Interface Unit for CPE-ISDN PRI
• Manufacturer: Cirrus Logic, Inc.

T1 SWITCHING CHARACTERISTICS
GND = 0V; Inputs: Logic 0 = 0V, Logic 1 = RV+; See Figures 1, 2, & 3)
Notes: 25. Crystal must meet specifications described in CXT6176/CXT8192 data sheet.
E1 SWITCHING CHARACTERISTICS
GND = 0V; Inputs: Logic 0 = 0V, Logic 1 = RV+; See Figures 1, 2, & 3)
DS156PP2
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
26. The transmitted pulse width does not depend on the TCLK duty cycle.
27. ACLKI provided by an external source or TCLK.
28. RCLK duty cycle will be 62.5% or 37.5% when jitter attenuator limits are reached.
29. At max load of 1.6 mA and 50 pF.
30. Host Mode (CLKE = 1).
31. Extended Hardware Mode.
32. Hardware Mode, or Host Mode (CLKE = 0).
Parameter
Parameter
(Note 25)
(Note 26)
(Note 27)
(Note 28) t
(Note 29)
(Note 29)
(Note 30)
(Note 31)
(Note 32)
(Note 30)
(Note 31)
(Note 32)
(Note 25)
(Note 26)
(Note 27)
(Note 28) t
(Note 29)
(Note 29)
(Note 30)
(Note 31)
(Note 32)
(Note 30)
(Note 31)
(Note 32)
(TA = -40 C to 85 C; TV+, RV+ = 5.0V 5%;
(TA = -40 C to 85 C; TV+, RV+ = 5.0V 5%;
t
t
Symbol
pwh3
pwh1
Symbol
pwh3
pwh1
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
f
t
t
h2
h1
h1
h1
t
t
h2
h1
h1
h1
c
c
r
r
f
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
1.544
1.544
2.048
2.048
Typ
Typ
274
274
274
274
274
274
194
194
194
194
194
194
50
50
-
-
-
-
-
-
-
-
-
-
-
-
CS61304A
Max
Max
500
340
60
55
85
85
60
55
85
85
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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
%
%
%
%
5