STLC60134S Просмотр технического описания (PDF) - STMicroelectronics

Номер в каталоге

Компоненты Описание

производитель

STLC60134S

TOSCA™ INTEGRATED ADSL CMOS ANALOG FRONT-END CIRCUIT

STMicroelectronics 

Table 3. Pin Functions (continued)

28

AVDD4

34

AVSS4

35

AVSS5

41

AVDD5

42

AVDD6

51

AVSS6

52

AVSS2

54

AVDD2

58

AVDD1

61

AVSS1

62

DVSS2

SPARES

3

NU3

4

NU2

5

NU1

6

NU0

29

NC0

30

NC1

TX pre - drivers supply

CT filter supply

LNA supply

DAC and support circuit

XTAL oscillator supply voltage

Not used inputs

Not used inputs

Not used inputs

Not used inputs

1 LT ↔ AUT-C; NT ↔ ATU-R

Figure 3. Grounding and Decoupling Networks.

STLC60134S

AVDD

AVSS

AVSS

AVDD

AVDD

AVSS

AVSS

AVDD

AVDD

AVSS

DVSS

DVSS

DVSS

DVSS

DVSS

VRAP pin

10µF

100nF

10µF

10µF

100nF

VRAN pin

ANALOG

VDD

4.7µH

L1

10µF

100nF

AVDD (each pin must

have its own capacitor)

100nF

10µF

100nF

VREF pin

IREF pin

100nF

VCOC pin

10µF

100nF

10µF

AGND pin

D98TL356

ATU-C END: BLOCK DIAGRAM

The transformer at ATU-C side has 1:2 ratio. The

termination resistors are 12.5Ω in case of 100Ω

lines.

The hybrid bridge resistors should be < 2.5kΩ for

low-noise.

An HP filter must be used on the TX path to re-

duce DMT sidelobes and out of band noise influ-

ence on the receiver. On the RX path, a LP filter

must be used in order to reduce the echo signal

level and to avoid saturation of the input stage of

the receiver.

The POTS filter is used in both directions to re-

duce crosstalk between STLC60134S signals

and POTS speech and signalling.

5/22

Share Link: