TLV320AD11A

3.3 V INTEGRATED ADSL OVER POTS CODEC

SLWS087B – JUNE 1999 – REVISED MARCH 2000

18

POST OFFICE BOX 655303

25

otherwise noted)

TX and EC channel (measured differentially unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Signal bandwidth

138

kHz

Conversion rate

OSEN pin high

4.416

MHz

Conversion rate

OSEN pin low

2.208

MHz

Channel gain error

PAA = 0 dB, Input = 99.1875 kHz at 06 dB

–0.1

0.1

dB

PAA step gain error

–0.2

0.2

dB

DC offset

–70

70

mV

Cross–talk

RX to TX channel (43.125 kHz at –1 dB)

–65

dB

Group delay

6

µs

Power supply reject ratio (PSRR)

200 mVpp at 99.1875 kHz

50

dB

Full scale output voltage

Load = 2000

Ω, single-ended measured

AVDD_TX/2

±0.75

V

Full scale output voltage

Load = 4000

Ω, differentially measured

3

Vp–p

AC Performance

SNR

Signal-to-noise ratio

81

dB

THD

Total harmonic distortion ratio

43.125 kHz at –1 dB (see Note 10)

86

dB

TSNR

Signal-to-noise + harmonic distortion ratio

80

dB

MT

Missing-tone test (see Note 11)

120.750 kHz (missing-tone)

76

dB

Channel Frequency Response (refer to Figure 7)

30 kHz

–0.25

0.25

Gain relative to gain at 99.1875

60 kHz

–0.25

0.25

dB

g

(25.875 kHz DHPF is bypassed)

138 kHz

–3

dB

276 kHz

–55

NOTES: 10. The input signal is the digital equivalent of a sine wave (digital full scale = 0 dB). The nominal differential output with this input

condition is 3 Vpp.

11. 27 tones, 25.875 to 138 kHz, 4.3125 kHz/step, –1 dB

reference outputs (see Note 12)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

REFP

REF plus input voltage

2.5

REFM

REF minus input voltage

AVDD REF = 3 3 V

0.5

V

VMID_REF

REF mid input voltage

AVDD_REF = 3.3 V

1.5

V

VMID_ADC

Receive channel mid-input voltage

1.5

NOTE 12: All the reference outputs should not be used as voltage source.

digital outputs

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOH

High-level output voltage

IOH = 0.5 mA

2.4

V

VOL

Low-level output voltage

IOL = –0.5 mA

0.6

V