ds2154lnd2 Maxim Integrated Products, Inc., ds2154lnd2 Datasheet - Page 66

• Manufacturer Part Number: ds2154lnd2
• Description: Ds2154 Enhanced E1 Single Chip Transceiver
• Manufacturer: Maxim Integrated Products, Inc.

Figure 13-1. External Analog Connections
NOTE 1: RESISTOR VALUES ARE ±1%.
NOTE 2: THE R
NOTE 3: THE R
NOTE 4: FOR 75Ω TERMINATION, R
NOTE 5: SEE THE SEPARATE APPLICATION NOTE FOR DETAILS ON HOW TO CONSTRUCT A PROTECTED INTERFACE.
NOTE 6: EITHER A CRYSTAL CAN BE APPLIED ACROSS THE MCLK AND XTALD PINS OR A TTL LEVEL CLOCK CAN BE APPLIED TO JUST MCLK.
NOTE 7: C1 AND C2 SHOULD BE 5PF LOWER THAN TWO TIMES THE NOMINAL LOADING CAPACITANCE OF THE CRYSTAL TO ADJUST FOR THE
INPUT CAPACITANCE OF THE DS2154.
T
R
RESISTORS ARE USED TO INCREASE THE TRANSMITTER RETURN LOSS OR TO PROTECT THE DEVICE FROM OVERVOLTAGE.
RESISTORS ARE USED TO TERMINATE THE RECEIVE E1 LINE.
R
= 37.4Ω; FOR 120Ω TERMINATION R
66 of 87
R
= 60Ω.
DS2154