Datasheet

DS26518 8-Port T1/E1/J1 Transceiver
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9.11 Power-Supply Decoupling
Table 9-39. Recommended Supply Decoupling
SUPPLY PINS DECOUPLING CAPACITANCE NOTES
DVDD33/DVSS
0.01μF + 0.1μF + 1μF + 10μF
—
DVDD18/DVSS
0.01μF + 0.1μF + 1μF + 10μF
—
ATVDD/ATVSS
0.1μF (x8) + 1μF (x4) + 10μF (x2)
It is recommended to use one 0.1μF capacitor for
each ATVDD/ATVSS pair (8 total), one 1μF
capacitor for every two ATVDD/ATVSS pairs (4
total), and two 10μF capacitors for the analog
transmit supply pins. These capacitors should be
located as close to the intended power pins as
possible.
ARVDD/ARVSS
0.1μF (x8) + 1μF (x4) + 10μF (x2)
It is recommended to use one 0.1μF capacitor for
each ARVDD/ARVSS pair (8 total), one 1μF
capacitor for every two ARVDD/ARVSS pairs (4
total), and two 10μF capacitors for the analog
receive supply pins. These capacitors should be
located as close to the intended power pins as
possible.
ACVDD/ACVSS
0.1μF + 1μF + 10μF
—