REV. M

Page 25

September 1998

AS3502

≤VDD≤4.5 V ; AGR = 0 dB; DGR = 0 dB; RL = 150Ω

from EP+ to EP-) unless otherwise specified.

Symbol

Parameter

Conditions

Min.

Typ.*

Max.

Units

GRA

Absolute Receive Gain

Trimming and Step Deviations

25 °C, Note 1

Steps: 0dB, -6dB, -12dB

±0.3

dB

GRAT

Gain Variation with Temp.

±0.1

dB

GRAV

Gain Variation with Supply

±0.05

dB

GRAG

Gain Variation with Digital Gain

-6 dB

≤ DGR ≤ 0 dB

±0.05

dB

DGR

Digital Gain Setting Range

See text for coefficient calculation

-6

0

dB

GTR

Gain Variation with Input Level

1020 Hz tone

-40 to +3 dBm0

-50 to -40 dBm0

-50 to -55 dBm0

±0.2

±0.4

±0.8

dB

dB

dB

GRAF

Receive Frequency Response

Relative to gain @ 1020 Hz, -10dBm0

0 Hz to 2400 Hz

2400 Hz to 3000 Hz

3400 Hz

3400 Hz to 4000 Hz

-0.2

-0.25

-0.8

0.2

0.2

0

Note 2

dB

dB

dB

dB

SOS

Spurious Out-of Band Signals at

the Output

4.6 kHz @0 dBm0; 300 Hz

≤ f ≤3.4 kHz

8k Hz @-0 dBm0; 300 Hz

≤ f ≤3.4 kHz

-40

-50

dBm0

dBm0

PDR

Absolute Group Delay

0 dBm0 @ 800Hz

370

µs

DDR

Group Delay Distortion

Relative to minimum

500 Hz

630 Hz

800 Hz

1000 Hz

1250 Hz

1600 Hz

2100 Hz

2500 Hz

0

0

0

10

20

30

60

110

µs

µs

µs

µs

µs

µs

µs

µs

STDR

Signal to Distortion Ratio

f = 1020 Hz , Note 3

0 dBm0

-10 dBm0

-30 dBm0

-40 dBm0

- 45 dBm0

50

50

36

31

26

dBp

dBp

dBp

dBp

dBp

ICNR

Idle Channel Noise

PCM +0 Code; AGR = + 6 dB

-75

dBm0p

SFNR

Sampling Frequency. Noise

selectively measured @ 8 kHz;

AGR=+6 dB

-78

dBm0

PSRRR

Receive

Power Supply Rejection Ratio

VDD + 100 mVrms; PCM +0 Code

0 - 4 kHz

4 - 50 kHz

50

50

dBp

dB

CT TX->RX

Transmit to Receive Crosstalk

GR = -12 dB

75

dB

* Typical figures are at 25°C and are for design aid only; not guaranteed and not subject to production testing

Note 1:

The tolerance of the absolute level is defined by the trimming accuracy of the converter reference.

Note 2:

GRAF =

13 sin

π 4000 − f

(

)

1200

− 1

















Note 3:

Total distortion includes quantization and harmonic distortion.