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CS61881-IB

Octal E1 Analog Front End

Cirrus Logic 

CS61881

1. CHARACTERISTICS AND SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS WARNING: Operations at or beyond these limits may result in

permanent damage to the device. Normal operation is not guaranteed at these extremes

Parameter

Symbol

DC Supply

DC Supply

(referenced to RGND=TGND=0 V) RVCC

TVCC

VCCIO

Input Voltage, Any Digital Pin

Vin

Input Voltage, Any Three Level Pin (LOOPn, CBLSEL)

Vin

Input Voltage, RTIP & RRING

Vin

Input Current, Any Pin

(Note 1) Iin

Ambient Operating Temperature

TA

Storage Temperature

Tstg

Min

-

-

-0.5

GNDIO-0.5

GNDIO-0.5

RGND-0.5

-10

-40

-65

Max

4.0

(RVCC) + 0.3

4.6

5.8

VCCIO+0.5

(RVCC)+ 0.5

10

85

150

Units

V

V

V

V

V

V

µA

°C

°C

1. Transient currents of up to 100 mA will not cause SCR latch-up. Also TTIP, TRING, TVCC and TGND

can withstand a continuous current of 100 mA.

RECOMMENDED OPERATING CONDITIONS

DC Supply

Parameter

DC Supply

Ambient Operating Temperature

Power Consumption, 75Ω Mode

Power Consumption, 120Ω Mode

Symbol

(Note 2)

(Notes 3,4,5)

(Notes 3,4,5)

RVCC,

TVCC

VCCIO

TA

PC

PC

Min

3.135

3.135

-40

-

-

Typ

3.3

3.3

25

TBD

TBD

Max Units

3.465 V

3.465 V

85

°C

112 mW

99

mW

Notes: 2. TVCC must not exceed RVCC by more than 0.3 V.

3. Power consumption while driving line load over operating temperature range. Includes IC and load.

Digital input levels are within 10% of the supply rails and digital outputs are driving a 50 pF capacitive

load.

4. Typical consumption corresponds to 50% ones density and medium line length at 3.3V.

5. Maximum consumption corresponds to 100% ones density and maximum line length at 3.465V.

4

DS451PP3

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