ds3104-se Maxim Integrated Products, Inc., ds3104-se Datasheet - Page 13

• Manufacturer Part Number: ds3104-se
• Description: Line Card Timing Ic With Synchronous Ethernet Support
• Manufacturer: Maxim Integrated Products, Inc.

6.
Table 6-1. Input Clock Pin Descriptions
________________________________________________________________________________________ DS3104-SE
PIN NAME
REFCLK
IC1POS,
IC2POS,
IC5POS,
IC6POS,
IC1NEG
IC2NEG
IC5NEG
IC6NEG
SYNC1
SYNC2
SYNC3
IC3
IC4
IC8
IC9
Pin Descriptions
(1)
TYPE
I
I
I
I
DIFF
DIFF
I
I
DIFF
DIFF
I
I
I
I
I
PD
PD
PD
PD
PD
PD
PU
I
(2)
Reference Clock. Connect to a 12.800MHz, high-accuracy, high-stability, low-noise local
oscillator (XO or TCXO). See Section 7.3.
Input Clock 1. LVDS/LVPECL or CMOS/TTL. Programmable frequency (default 8kHz).
LVDS/LVPECL: See
CMOS/TTL: Bias IC1NEG to 1.4V and connect the single-ended signal to IC1POS.
Input Clock 2. LVDS/LVPECL or CMOS/TTL. Programmable frequency (default 8kHz).
LVDS/LVPECL: See
CMOS/TTL: Bias IC2NEG to 1.4V and connect the single-ended signal to IC2POS.
This input can be associated with the SYNC3 pin.
Input Clock 3. CMOS/TTL. Programmable frequency (default 8kHz). This input can be
associated with the SYNC1 pin.
Input Clock 4. CMOS/TTL. Programmable frequency (default 8kHz). This input can be
associated with the SYNC2 pin.
Input Clock 5. LVDS/LVPECL or CMOS/TTL. Programmable frequency (default 19.44MHz).
LVDS/LVPECL: See
CMOS/TTL: Bias IC5NEG to 1.4V and connect the single-ended signal to IC5POS.
This input can be associated with the SYNC1 pin.
Input Clock 6. LVDS/LVPECL or CMOS/TTL. Programmable frequency (default 19.44MHz).
LVDS/LVPECL: See
CMOS/TTL: Bias IC6NEG to 1.4V and connect the single-ended signal to IC6POS.
This input can be associated with the SYNC2 pin.
Input Clock 8. CMOS/TTL. Programmable input reference (default 19.44MHz).
Input Clock 9. CMOS/TTL. Programmable frequency (default 19.44MHz). This input can be
associated with the SYNC3 pin.
Frame Sync1 Input. 2kHz, 4kHz, or 8kHz.
FSCR3:SOURCE ! = 11XX
FSCR3:SOURCE = 11XX
Frame Sync2 Input. 2kHz, 4kHz, or 8kHz.
FSCR3:SOURCE ! = 11XX
FSCR3:SOURCE = 11XX
Frame Sync3 Input. 2kHz, 4kHz, or 8kHz.
FSCR3:SOURCE ! = 11XX
FSCR3:SOURCE = 11XX
This pin is the external frame sync input associated with any input pin using the
FSCR3:SOURCE field.
This pin is the external frame sync signal associated with IC3 or IC5 depending on
which one is currently selected and the setting of FSCR1.SYNCSRC[1:0].
This pin is not used for the EXTERNAL FRAME SYNC signal.
This pin is the external frame sync signal associated with IC4 or IC6 depending on
which one is currently selected and the setting of FSCR1.SYNCSRC[1:0].
This pin is not used for the external frame sync signal.
This pin is the external frame sync signal associated with IC9 or IC2 depending on
which one is currently selected and the setting of FSCR1.SYNCSRC[1:0].
Table
Table
Table
Table
10-4,
10-4,
10-4,
10-4,
Figure 10-1
Figure 10-1
Figure 10-1
Figure 10-1
PIN DESCRIPTION
and
and
and
and
Figure
Figure
Figure
Figure
10-2.
10-2.
10-2.
10-2.
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