DS26504L datasheet(21/129 Pages) MAXIM

21 / 129 page

DS26504 T1/E1/J1/64KCC BITS Element

21 of 129

4.6 Line Interface

NAME

TYPE

FUNCTION

MCLK

Master Clock Input. A (50ppm) clock source. This clock is used internally for

both clock/data recovery and the jitter attenuator for both T1 and E1 modes. A

quartz crystal can be applied across MCLK and XTALD rather than the clock

source. The clock rate can be 16.384MHz, 8.192MHz, 4.096MHz, or

2.048MHz. When using the DS26504 in T1-only operation, a 1.544MHz

(50ppm) clock source can be used.

RTIP

Receive Tip. Analog input for clock recovery circuitry. This pin connects via a

1:1 transformer to the network. See the Line Interface Unit section for details.

RRING

Receive Ring. Analog input for clock recovery circuitry. This pin connects via

a 1:1 transformer to the network. See the Line Interface Unit section for details.

TTIP

Transmit Tip. Analog line-driver output. This pin connects via a 1:2 step-up

transformer to the network. See the Line Interface Unit section for details.

TRING

Transmit Ring. Analog line-driver output. This pin connects via a 1:2 step-up

transformer to the network. See the Line Interface Unit section for details.

THZE

Transmit High-Impedance Enable. When high, TTIP and TRING will be

placed into a high-impedance state.

4.7 Power

NAME

TYPE

FUNCTION

DVDD

—

Digital Positive Supply. 3.3V ±5%. Should be tied to the RVDD and TVDD

pins.

RVDD

—

Receive Analog Positive Supply. 3.3V ±5%. Should be tied to the DVDD and

TVDD pins.

TVDD

—

Transmit Analog Positive Supply. 3.3V ±5%. Should be tied to the DVDD

and RVDD pins.

DVSS

—

Digital Signal Ground. 0.0V. Should be tied to the RVSS and TVSS pins.

RVSS

—

Receive Analog Signal Ground. 0.0V. Should be tied to the DVSS and TVSS

pins.

TVSS

—

Transmit Analog Signal Ground. 0.0V. Should be tied to the DVSS and

RVSS pins.

DS26504L Datasheet(PDF) 21 Page - Maxim Integrated Products

DS26504L Datasheet(HTML) 21 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL