DS3106LN+ Maxim Integrated Products, DS3106LN+ Datasheet - Page 31

• Manufacturer Part Number: DS3106LN+
• Description: IC TIMING LINE CARD 64-LQFP
• Manufacturer: Maxim Integrated Products
• Type: Timing Card ICr

Specifications of DS3106LN+

• Input: CMOS, LVDS, LVPECL, TTL
• Output: CMOS, LVDS, LVPECL, TTL
• Frequency - Max: 312.5MHz
• Voltage - Supply: 1.62 V ~ 1.98 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Frequency-max: 312.5MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.8.2.4 OC3 and OC6 Default Frequency Select Pins
There are two sets of frequency select pins, O3F[2:0] and O6F[2:0], that control the reset default frequencies of the
OC3 and OC6 output clock pins, respectively. The SONSDH pin also selects the output frequencies for some of the
pin settings. There is also an interaction between O3F[2:0] and O6F[2:0] when O6F[2:0] uses some internal
resource that is needed to generate certain frequencies. After reset the O3F[2:0] and O6F[2:0] pins can be used as
GPIO pins and status output pins. The default output frequencies are affected by changing the register bit values of
four registers: OCR2, OCR3, T0CR1, and T4CR1. The register defaults can be changed after reset using the
microprocessor interface.
Table 7-14. T0FREQ Default Settings
Table 7-15. T4FREQ Default Settings
Table 7-16. OC6 Default Frequency Configuration
*
19-4629; Rev 4; 8/10
____________________________________________________________________________________________ DS3106
Occurs when O6F[2:0] are left unconnected.
O6F[2:0]
O6F[2:0]
O6F[2:0]
274.944
311.040
312.500
!=001
!=001
=001
=001
100*
000
001
010
011
101
110
111
X
X
FREQUENCY (MHz)
OC6 only
OC6 only
OC6 only from T0 APLL2
O3F[2:0]
O3F[2:0]
SONSDH
!=001
!=010
=001
=010
X
X
X
0
1
X
X
X
X
X
X
SONSDH
SONSDH
FREQUENCY
X
X
0
1
0
1
0
1
0
1
68.736
22.368
155.52
(MHz)
19.44
25.92
38.88
51.84
77.76
0
0110
0111
0110
0111
0011
0101
010
100
001
001
OFREQ6
T0CR1.T0FREQ
T4CR1.T4FREQ
T0 APLL
T0FREQ
OCR3.
0000
1111
1110
0110
0111
1000
1001
1010
0011
77.76
24 x DS1 DFB
12 x E1 DFB
77.76 AFB
77.76 AFB
16 x DS1
16 x E1
DS3
DS3
E3
E3
APLL
SRC
T4
T4
T0
T0
T0
T0
T0
T0
—
T4FT0
T4 APLL
T4FREQ
OFREQn
APLL/1
APLL/2
RMS
(ps)
70
50
60
31 of 87
JITTER
(TYP)
pk-pk
0.70
0.50
0.60
(ns)