ds26504 Maxim Integrated Products, Inc., ds26504 Datasheet - Page 21

• Manufacturer Part Number: ds26504
• Description: Ds26504 T1/e1/j1/64kcc Bits Element
• Manufacturer: Maxim Integrated Products, Inc.

4.6 Line Interface
4.7 Power
RRING
NAME
TRING
NAME
MCLK
DVDD
RVDD
TVDD
THZE
DVSS
RVSS
TVSS
RTIP
TTIP
TYPE
TYPE
O
O
—
—
—
—
—
—
I
I
I
I
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.
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.
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.
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.
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.
Transmit High-Impedance Enable. When high, TTIP and TRING will be
placed into a high-impedance state.
Digital Positive Supply. 3.3V ±5%. Should be tied to the RVDD and TVDD
pins.
Receive Analog Positive Supply. 3.3V ±5%. Should be tied to the DVDD and
TVDD pins.
Transmit Analog Positive Supply. 3.3V ±5%. Should be tied to the DVDD
and RVDD pins.
Digital Signal Ground. 0.0V. Should be tied to the RVSS and TVSS pins.
Receive Analog Signal Ground. 0.0V. Should be tied to the DVSS and TVSS
pins.
Transmit Analog Signal Ground. 0.0V. Should be tied to the DVSS and
RVSS pins.
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FUNCTION
FUNCTION