TLFD600

ADSL CODEC WITH INTEGRATED LINE DRIVER AND RECEIVER

SLAS280B – MAY 2000 – REVISED NOVEMBER 2000

20

POST OFFICE BOX 655303

RX channel

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

High-pass

FMR [D2] = 1

162

168

174

Signal bandwidth

g

filter

FMR [D2] = 0

174

180

186

kHz

Signal bandwidth

Low pass filter

G.lite mode

552

kHz

Low-pass filter

Full rate mode

1104

G.lite mode

1.

4.3125 kHz spaced tones from 138 – 552 kHz

2.

422.625 kHz tone is missing

60

Missing tone power ratio (MTPR)

Full rate mode

1.

4.3125 kHz spaced tones from 138 –

1104 kHz

2.

422.625 kHz tone is missing

60

dB

Group delay distortion

G.lite or full rate mode

10

µs

CPGA

–0.5

0.5

Gain step error

PGA2

G.lite or full rate mode

–0.5

0.5

dB

PGA3

–0.5

0.5

PSRR

G.lite mode

See Note 2

–70

dB

PSRR

Full rate mode

See Note 2

–70

dB

G.lite mode

CPGA

21 dB PGA2

30 dB PGA3

9 dB

–150

Input reference noise floor

Full rate mode

CPGA = 21 dB, PGA2 = 30 dB, PGA3 = 9 dB,

Equalizer = 0 dB

–150

dBm/Hz

CMRR

G.lite and Full Rate Mode

60

dB

NOTE 2: Inject single tone signal (267.375 kHz) at 200 mVp-p to analog power supplies and measure 267.375 kHz tones at RX output.