CS61535A View Datasheet(PDF) - Cirrus Logic

Part Name

Description

Manufacturer

CS61535A

T1/E1 Line Interface

Cirrus Logic 

CS61535A

E1 SWITCHING CHARACTERISTICS (TA = -40°C to 85°C; TV+, RV+ = 5.0V ±5%;

GND = 0V; Inputs: Logic 0 = 0V, Logic 1 = RV+; See Figures 1, 2, & 3)

Parameter

Symbol Min

Typ

Max

Crystal Frequency

ACLKI Duty Cycle

ACLKI Frequency

RCLK Duty Cycle

RCLK Cycle Width

(Note 29)

(Note 30)

(Notes 31, 32)

(Note 32)

RCLK Cycle Width

(Note 32)

Rise Time, All Digital Outputs

(Note 33)

Fall Time, All Digital Outputs

(Note 33)

TPOS/TNEG (TDATA) to TCLK Falling Setup Time

TCLK Falling to TPOS/TNEG (TDATA) Hold Time

RPOS/RNEG Valid Before RCLK Falling

(Note 34)

RDATA Valid Before RCLK Falling

(Note 35)

RPOS/RNEG Valid Before RCLK Rising

(Note 31)

RPOS/RNEG Valid After RCLK Falling

(Note 34)

RDATA Valid After RCLK Falling

(Note 35)

RPOS/RNEG Valid After RCLK Rising

(Note 31)

TCLK Frequency

TCLK Pulse Width

(Notes 31, 34, 36, 37)

(Notes 35, 36, 37)

fc

tpwh3/tpw3

faclki

tpwh1/tpw1

tpw1

tpwh1

tpwl1

tpw1

tpwh1

tpwl1

tr

tf

tsu2

th2

tsu1

tsu1

tsu1

th1

th1

th1

ftclk

tpwh2

- 8.192000 -

40

-

60

-

2.048

-

-

29

-

310

488

670

90

140

190

120

348

500

320

488

670

-

348

-

100

140

-

-

-

85

-

-

85

25

-

-

25

-

-

100

194

-

100

194

-

100

194

-

100

194

-

100

194

-

100

194

-

-

2.048

-

80

-

340

150

-

340

Units

MHz

%

MHz

%

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

MHz

ns

ns

tr

tf

Any Digital Output

90%

10%

90%

10%

Figure 2. Signal Rise and Fall Characteristics

t pw2

t pwh2

TCLK

t su2

t h2

TPOS/TNEG

Figure 3a. Transmit Clock and Data Switching

Characteristics

DS40F2

t pw3

t pwh3

ACLKI

Figure 3b. Alternate External Clock Characteristics

7

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