CSP1027 datasheet(48/64 Pages) AGERE

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CSP1027 Voice Band Codec for

Data Sheet

Cellular Handset and Modem Applications

December 1999

Lucent Technologies Inc.

9 Electrical Characteristics and Requirements

The following electrical characteristics are preliminary and are subject to change. Electrical characteristics refer to

the behavior of the device under specified conditions. Electrical requirements refer to conditions imposed on the

user for proper operation of the device. The parameters below are valid for the following conditions:

VDD = 5 V ± 10% (See Section 8.3 on page 47 for exceptions.)

Table 12. Digital Electrical Characteristics and Requirements

Parameter

Symbol

Min

Max

Unit

Input Voltage (except PORCAP):

Low

High

VIL

VIH

—

0.7 x VDD

0.3 x VDD

—

PORCAP Input Voltage:

Low

High

VIL

VIH

—

0.7 x VDD

0.5 x VDD

—

Input Current (except EIGS, IOCK, PORCAP):

Low (VIL = 0 V)

High (VIH = 5.5 V)

IIL

IIH

–5

—

µA

Input Current (EIGS):

Low (VIL = 0 V)

High (VIH = 5.5 V)

IIL

IIH

–5

—

100

µA

Input Current (IOCK):

Low (VIL = 0 V)

High (VIH = 5.5 V)

IIL

IIH

–100

—

µA

Input Current (PORCAP):

Low (VIL = 0 V)

High (VIH = 5.5 V)

IIL

IIH

–100

—

µA

Output Low Voltage:

Low (IOL = 2.0 mA)

Low (IOL = 50 µA)

VOL

—

0.4

0.2

Output High Voltage:

High (IOH = –2.0 mA)

High (IOH = –50 µA)

VOH

VDD – 0.7

VDD – 0.2

—

Output 3-State Current:

Low (VDD = 5.5 V, VIL = 0 V)

High (VDD = 5.5 V, VIH = 5.5 V)

IOZL

IOZH

–10

—

µA

Input Capacitance

—

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