DS21610-DS21610SN Dallas Semiconducotr, DS21610-DS21610SN Datasheet - Page 3

• Manufacturer Part Number: DS21610-DS21610SN
• Description: 3.3V/5V Clock Rate Adapter
• Manufacturer: Dallas Semiconducotr

1. PIN DESCRIPTION
Table 1-A. Pin Description
1.1 Compatibility with LXP610
The DS21610 is pin compatible with the LXP610.
Table 1-B. Pin Name Cross-Reference to LXP610
11, 12, 17–
19, 21, 23,
3–5, 7–9,
PLCC
25, 26
SYNCOUT
CLKOUT2
CLKOUT1
10
13
14
15
16
20
22
24
27
28
DS21610
1
2
6
CLKIN
N.C.
V
P3
P1
P2
SS
PIN
3, 6, 11
SO
10
12
13
14
15
16
1
2
4
5
7
8
9
LXP610
CLKO
SYNCOUT
CLKI
GND
FSO
HFO
CLKOUT2
CLKOUT1
N.C.
P3
P1
P2
SYNCIN
CLKIN
NAME
N.C.
FSP
SEL
V
V
P3
P1
P2
P4
SS
DD
Program Pin 3
Synchronization Pulse Output
Clock 2 Output
Clock Input
Clock 1 Output
Program pin 1
Ground
Program Pin 2
No Connect
Supply
Supply
Output
Output
Output
TYPE
Input
Input
Input
Input
Input
Input
Input
Input
—
FUNCTION
3 of 15
Program Pin 3. Used to select the various combinations of
clock and sync outputs.
Synchronization Pulse Output. An 8kHz output that can be
synchronized to the clock outputs and SYNCIN (if present).
No Connect
Clock Output 2. T1 or E1 carrier clock output referenced to
CLKIN.
Clock Input. Reference Clock Input. CLKOUT1 and CLKOUT2
will be referenced to this clock.
Clock Output 1. T1 or E1 carrier clock output referenced to
CLKIN.
Program Pin 3. Used to select the various combinations of
clock and sync outputs.
Ground
Program Pin 2. Used to select the various combinations of
clock and sync outputs.
Clock Mode Select. T-carrier/E-carrier mode select.
Frame Synchronization Pulse Polarity. Used to change the
polarity of the SYNCOUT output.
Synchronization Pulse Input. Used to synchronize the clock
outputs and SYNCOUT to CLKIN and SYNCIN. SYNCIN
should be tied high or low when not in use.
Program Pin 4. Used to select the various combinations of
clock and sync outputs.
Positive Supply, 3.3V or 5V ±5%
FUNCTION