TP3056B

MONOLITHIC SERIAL INTERFACE

COMBINED PCM CODEC AND FILTER

SLWS072A – MAY 1998 – REVISED AUGUST 1998

9

POST OFFICE BOX 655303

gain, noninverting, in A-law and

µ-law modes, (unless otherwise noted) (continued)

distortion

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

‡

Level = 3 dBm0

33

†

‡

Level = 0 dBm0 to - 30 dBm0

36

†

Signal to distortion ratio transmit or receive half channel‡

Level =

40 dBm0

Transmit

29

dBC†

Signal-to-distortion ratio, transmit or receive half-channel‡

Level = – 40 dBm0

Receive

30

dBC†

Level =

55 dBm0

Transmit

14

Level = – 55 dBm0

Receive

15

Single-frequency distortion products, transmit

–46

dB

Single-frequency distortion products, receive

–46

dB

Intermodulation distortion

Loop-around measurement,

VFXI + = – 4 dBm0 to – 21 dBm0,

Two frequencies in the range of 300 Hz to 3400 Hz

–41

dB

Level = – 3 dBm0

33

Si

l

di

i

i

i h lf h

l (A l

)

Level = – 6 dBm0 to – 27 dBm0

36

Signal-to-distortion ratio, transmit half-channel (A-law)

(CCITT G 714)§

Level = – 34 dBm0

33.5

dB

(CCITT G.714)§

Level = – 40 dBm0

28.5

Level = – 55 dBm0

13.5

Level = – 3 dBm0

33

Si

l t di t ti

ti

i

h lf h

l (A l

)

Level = – 6 dBm0 to – 27 dBm0

36

Signal-to-distortion ratio, receive half-channel (A-law)

(CCITT G 714)§

Level = – 34 dBm0

34.2

dB

(CCITT G.714)§

Level = – 40 dBm0

30

Level = – 55 dBm0

15

† The unit dBC applies to C-message weighting.

‡ Sinusoidal test method (see Note 6)

§ Pseudo-noise test method

NOTE 6:

µ-law measurements are made using a C-message weighted filter, and A-law measurements are made using a psophometric weighted

filter.