Owner manual

DS2151Q
022697 31/46
DS2151Q EXTERNAL ANALOG CONNECTIONS Figure 12–1
+5V
+
68 µF0.1 µF
0.1 µF
0.1 µF
6.176 MHz
DVDD
DVSS
RVDD
RVSS
TVDD
TVSS
XTAL1
XTAL2
TTIP
TRING
RTIP
RRING
DS2151Q
0.1 µF
R1 R2
1:1
1.15:1 (Rt=0 ohms) or
T1 TRANSMIT
PAIR
T1 RECEIVE
PAIR
NOTE: KEEP THE LINES TO RTIP AND
RRING AS SHORT AS POSSIBLE AND
ROUTE THEM VIA THE EXACT SAME
PATH.
0.47 µF
(NON–POLARIZED)
R1=R2=50 OHMS (+1%)
1.36:1 (Rt=4.7 ohms)
Rt
Rt
0.01 µF
NOTE:
See the separate Application Note for details on how to construct a protected interface.
DS2151Q JITTER TOLERANCE Figure 12–2
1K
100
10
1
0.1
UNIT INTERVALS (Ulpp)
DS2151Q
TOLERANCE
MINIMUM TOLERANCE
LEVEL AS PER
TR 62411 (DEC. 90)
10 100 1K 10K 100K1
FREQUENCY (Hz)