Table 15. Phase characteristics

Description

Value/Unit

Total TX filter group delay

<50

µs @ 34.5kHz < f < 138kHz

Total TX filter group delay distortion

<20

µs @ 34.5kHz < f < 138kHz

Note: The total ATU-R TX path (including DAC) group delay distortion is 16

µs (i.e. = 15µs+ 1µs of DAC)

AMPLITUTDE

0dB

+/-1dB

20dB

30

138

250

KHz

D98TL363

Figure 10. SC Filter Mask for ATU-CRX and ATU-R TX

Table 16. D/A Convertor (A current steering architecture is used).

Description

Value/Unit

Numbers of bits:

12bits

Minimum resolution of the D/A convertors

11bits

Linearity error of the A/D convertor

<1LSB (out of 12bits)

Full scale input range:

1 Vpdif

±5%

Sampling rate:

8.832MHz (or 4.416MHz in compatible mode)

Maximum group delay:

<3

µs

Maximum group delay distortion:

<1

µs

Linearity of ATU-C TX

Linearity of the TX is defined by the IM3 product of two sinusoidal signals with frequencies f1 and f2 and

each with 0.5Vpd amplitude (total

≤ 1Vpd)at the outputof the pre-driver for the case of a total AGC = 0dB.

Table 17. Linearity of ATU-C TX

f1 (0.5Vpd)

f2 (0.5Vpd)

300kHz

200kHz

500kHz

400kHz

700kHz

600kHz

S/IM3 (AGC = 0dB)

59.5dB @ 100kHz

53.5dB @ 400kHz

43.5dB @ 700kHz

42.5dB @ 800kHz

59.5dB @ 300kHz

48.0dB @ 600kHz

48.0dB @ 500kHz

42.5dB @ 800kHz

STLC60134S

11/22