Lucent Technologies Inc.

5

Data Sheet

July 1998

T8502 and T8503 Dual PCM Codecs with Filters

Table 3. Power Dissipation

Power measurements are made at MCLK = 4.096 MHz with outputs unloaded and ASEL and GS[1:0] not

connected. Clock and frame sync levels are +5 V and 0 V.

Transmission Characteristics

Table 4. Analog Interface

Channels

Operational

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

0

Standby Current

MCLK present;

—

5

8

mA

1

Partial Standby Current

MCLK present;

FS pulses present for

one channel,

channel

—

10

16

mA

2

Powerup Current

MCLK, FS pulses present

—

16

23

mA

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

1.0

60

—

M

Ω

—

0.04

2.4

µA

—

5000

—

—

—

—

1

3

—

MHz

—

—

—

50

pF

—

10

—

—

k

Ω

Relative to ground

2.25 2.35

2.5

V

—

2000

—

—

Ω

—

—

—

100

pF

0 dBm0, 1020 Hz PCM code

—

—

20

Ω

channel under test

3000

—

10000

Ω

Alternating

± zero µ-law PCM

2.25 2.38

2.5

V

channel under test, no load

2.0

2.35

2.65

V

RL = 2000

Ω

3.2

—

—

Vp-p