CS61535A Cirrus Logic, Inc., CS61535A Datasheet - Page 7

• Manufacturer Part Number: CS61535A
• Description: T1-E1 Line Interface Unit for PCM applications
• Manufacturer: Cirrus Logic, Inc.

E1 SWITCHING CHARACTERISTICS
GND = 0V; Inputs: Logic 0 = 0V, Logic 1 = RV+; See Figures 1, 2, & 3)
DS40F2
Crystal Frequency
ACLKI Duty Cycle
ACLKI Frequency
RCLK Duty Cycle
RCLK Cycle Width
RCLK Cycle Width
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
TCLK Frequency
TCLK Pulse Width
Figure 3a. Transmit Clock and Data Switching
TPOS/TNEG
TCLK
Characteristics
t pwh2
t su2
Parameter
Any Digital Output
t pw2
Figure 2. Signal Rise and Fall Characteristics
t h2
(Notes 31, 34, 36, 37)
(Notes 35, 36, 37)
(Notes 31, 32) t
t r
(Note 33)
(Note 34)
(Note 35)
(Note 31)
10%
(Note 29)
(Note 30)
(Note 32)
(Note 32)
(Note 33)
(Note 34)
(Note 35)
(Note 31)
90%
(TA = -40 C to 85 C; TV+, RV+ = 5.0V 5%;
Figure 3b. Alternate External Clock Characteristics
t
pwh3
pwh1
Symbol
t
t
t
t
t
f
t
t
pwh1
pwh1
t
t
t
t
pwh2
f
aclki
pwl1
pwl1
pw1
pw1
t
t
t
t
su2
su1
su1
su1
tclk
ACLKI
f
h2
h1
h1
h1
t
t
c
r
f
/t
/t
pw3
pw1
90%
10%
t f
Min
310
120
320
100
100
100
100
100
100
100
150
40
90
25
25
80
t pwh3
-
-
-
-
-
-
-
8.192000
t pw3
2.048
2.048
Typ
488
140
348
488
348
140
194
194
194
194
194
194
29
-
-
-
-
-
-
-
CS61535A
Max
670
190
500
670
340
340
60
85
85
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Units
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
7