TP3056B

MONOLITHIC SERIAL INTERFACE

COMBINED PCM CODEC AND FILTER

SLWS072A – MAY 1998 – REVISED AUGUST 1998

6

POST OFFICE BOX 655303

gain, noninverting, in A-law and

µ-law modes, (unless otherwise noted)

filter gains and tracking errors

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Maximum peak transmit

µ-law

3.17 dBm0

2.501

V

overload level

A-law

3.14 dBm0

2.492

V

Transmit filter gain, absolute‡ (at 0 dBm0)

TA = 25°C

– 0.15

0.15

dB

‡

f = 16 Hz

–40

‡

f = 50 Hz

–30

‡

f = 60 Hz

–26

‡

f = 200 Hz

– 1.8

– 0.1

Transmit filter gain relative to absolute‡

f = 300 Hz to 3000 Hz

– 0.15

0.15

dB

Transmit filter gain, relative to absolute‡

f = 3300 Hz

– 0.35

0.05

dB

f = 3400 Hz

– 0.8

0

f = 4000 Hz

–14

f

≥ 4600 Hz

(measure response from 0 Hz to 4000 Hz)

–32

Absolute‡ transmit gain variation with

temperature and supply voltage relative to

absolute transmit gain

– 0.1

0.1

dB

3 dBm0

≥ input level

≥ –40 dBm0

±0.2

Transmit gain tracking error with level

Sinusoidal test method,

Reference level = –10 dBm0

– 40 dBm0 > input

level

≥ –50 dBm0

±0.4

dB

– 50 dBm0 > input

level

≥ –55 dBm0

±0.8

Receive filter gain, absolute‡ (at 0 dBm0)

Input is digital code sequence for 0-dBm0 signal,

TA = 25°C

– 0.15

0.15

dB

‡

f = 0 Hz to 3000 Hz,

TA = 25°c

– 0.15

0.15

Receive filter gain relative to absolute‡

f = 3300 Hz

– 0.35

0.05

dB

Receive filter gain, relative to absolute‡

f = 3400 Hz

– 0.8

0

dB

f = 4000 Hz

–14

Absolute‡ receive gain variation with temperature

and supply voltage

TA = full range,

See Note 3

– 0.1

0.1

dB

Sinusoidal test method;

3 dBm0

≥ input level

≥ –40 dBm0

±0.2

Receive gain tracking error with level

reference input PCM code

corresponds to an ideally

– 40 dBm0 > input

level

≥ –50 dBm0

±0.4

dB

encoded – 10 dBm0 signal

– 50 dBm0 > input

level

≥ –55 dBm0

±0.8

Pseudo-noise test method;

3 dBm0

≥ input level

≥ –40 dBm0

±0.25

Transmit and receive gain tracking error with

level (A-law, CCITT G 712)

Pseudo noise test method

reference input PCM code

corresponds to an ideally

– 40 dBm0 > input

level

≥ –50 dBm0

±0.3

dB

encoded – 10 dBm0 signal

– 50 dBm0 > input

level

≥ –55 dBm0

±0.45

† All typical values are at VCC = 5 V, VBB = –5 V, and TA = 25°C.

‡ Absolute rms signal levels are defined as follows: VI = 1.2276 V = 0 dBm0 = 4 dBm at f = 1.02 kHz with RL = 600 Ω.

NOTE 3: Full range for the TP3056B is 0

°C to 70°C.