ds21610 Maxim Integrated Products, Inc., ds21610 Datasheet

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ds21610

Manufacturer Part Number
ds21610
Description
3.3v/5v Clock Rate Adapter
Manufacturer
Maxim Integrated Products, Inc.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS21610
Manufacturer:
DALLAS
Quantity:
20 000
Part Number:
ds21610S
Manufacturer:
MAXIM/美信
Quantity:
20 000
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
GENERAL DESCRIPTION
The DS21610 is a multirate, low-jitter clock adapter
that converts E-carrier and T-carrier clocks to
multiple PDH carrier clock rates. Two clock outputs
are available that are frequency-locked to the input
clock. The clock outputs along with an 8kHz frame-
sync output can be phase-aligned to a frame-sync
input. The device is backward compatible with the
LXP610 and operates from either a 3.3V or 5V
supply. All modes of operation include a standard
8kHz output.
PIN CONFIGURATION
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Semiconductor
DS21610
Dallas
SO
1 of 15
3.3V/5V Clock Rate Adapter
FEATURES
ORDERING INFORMATION
+ Denotes a lead-free/RoHS-compliant device.
DS21610SN
DS21610SN+
DS21610QN
DS21610QN+
Direct Replacement for LXP610SE
Converts E-Carrier Clock Rates to T-Carrier
Clock Rates
Converts T-Carrier Clock Rates to E-Carrier
Clock Rates
3.3V or 5V Supply
Low Jitter Output
Multiple Output Clocks Synchronized to
Input Clock
8kHz Frequency-Locked Output for all
Operation Modes
No External Components Required
16-Pin SO and 28-Pin PLCC
Industrial Temperature Range:
-40°C to +85°C
PART
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
REV: 011606
DS21610
PIN-PACKAGE
16 SO
16 SO
28 PLCC
28 PLCC

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ds21610 Summary of contents

Page 1

... GENERAL DESCRIPTION The DS21610 is a multirate, low-jitter clock adapter that converts E-carrier and T-carrier clocks to multiple PDH carrier clock rates. Two clock outputs are available that are frequency-locked to the input clock. The clock outputs along with an 8kHz frame- sync output can be phase-aligned to a frame-sync input ...

Page 2

PIN DESCRIPTION ........................................................................................................................ 3 1.1 C LXP610 .........................................................................................................................3 OMPATIBILITY WITH 2. FUNCTIONAL DESCRIPTION ....................................................................................................... 5 3. OUTPUT JITTER............................................................................................................................ 6 3 ...........................................................................................................................................6 ITTER RANSFER 4. OPERATING PARAMETERS......................................................................................................... 8 5. PACKAGE INFORMATION.......................................................................................................... 13 5.1 16-P SO (300 ) (56-G4009-001) ...

Page 3

... SEL 22 13 FSP 24 14 SYNCIN 1.1 Compatibility with LXP610 The DS21610 is pin compatible with the LXP610. Table 1-B. Pin Name Cross-Reference to LXP610 DS21610 LXP610 P3 P3 SYNCOUT FSO CLKOUT2 HFO CLKIN CLKI CLKOUT1 CLKO GND N.C. ...

Page 4

... Figure 1-1. Block Diagram ANALOG CLKIN PLL DS21610 SEL SYNCIN P1 FREQUENCY P2 PLL SELECT P3 LOGIC P4 FEEDBACK OUTPUT CIRCUIT DIVIDER FRAME SYNC GENERATOR CLKOUT2 CLKOUT1 SYNCOUT FSP ...

Page 5

... SYNCOUT is selectable. It can be one or one-half the clock period of CLKIN, centered on the rising edge of CLKIN. Pins are used to select the various clock rates and operational modes. list the various operational modes of the DS21610. CLKIN, CLKOUT1, and CLCKOUT2 are always frequency-locked. They can all be phase-locked to a system frame-sync pulse ...

Page 6

... NOTE: THE TYPICAL PEAK JITTER GAIN OF THE DS21610 IS ABOUT 1.6 FOR CONVERSION FROM T1 TO E1. THE TYPICAL PEAK-JITTER GAIN OF THE LEVEL ONE DEVICE IS ABOUT 1.1. HOWEVER, THE JITTER GAIN FOR THE DS21610 PEAKS IN THE 4kHz TO 8kHz RANGE, WHEREAS THE PEAK JITTER GAIN FOR THE LXP610 SPANS A GREATER FREQUENCY RANGE (20kHz TO 40kHz) ...

Page 7

... NOTE: THE TYPICAL PEAK JITTER GAIN OF THE DS2161 IS ABOUT 1.4 FOR CONVERSION FROM T1 TO E1. THE TYPICAL PEAK-JITTER GAIN OF THE LEVEL ONE DEVICE IS ABOUT 1.1. HOWEVER, THE JITTER GAIN FOR THE DS21610 PEAKS IN THE 4kHz TO 8kHz RANGE, WHEREAS THE PEAK JITTER GAIN FOR THE LXP610 SPANS A GREATER FREQUENCY RANGE (20kHz TO 40kHz). ...

Page 8

... Voltage Range on Any Pin Relative to Ground…………………………………………………………..-1.0V to +6.0V Operating Temperature Range for DS21610SN………………………………………………………...-40°C to +85°C Storage Temperature Range… ...

Page 9

AC TIMING (Figure 4-1, Figure 4-2, Figure 4-3, PARAMETER Capture Range on CLKIN Lock Range on CLKIN CLKIN Duty Cycle SYNCIN Setup to CLKIN Rising SYNCIN Hold After CLKIN Rising SYNCIN Pulse Width CLKOUT1 Delay from CLKIN Rising CLKOUT1 Duty ...

Page 10

Figure 4-1. SYNCIN/CLKIN to CLKOUT1/SYNCOUT and CLKOUT2 CLKIN SINCIN CLKOUT1 CLKOUT1 SYNCOUT CLKOUT2 CLKOUT1 ...

Page 11

Figure 4-2. Output Frame-Sync Alignment When CLKOIT2 = 2 x CLKOUT1 CLKOUT1 (4.096MHz) CLKOUT2 (8.192MHz) SYNCOUT CLKOUT1 (3.088MHz) CLKOUT2 (6.176MHz) SYNCOUT Figure 4-3. Output Frame-Sync Alignment When CLKOUT2 = 3 x CLKOUT1 CLKOUT1 (2.56MHz or 2.048MHz) CLKOUT2 (7.680MHz or 6.144MHz) ...

Page 12

Figure 4-4. Output Frame-Sync Alignment When CLKOIT2 = 4 x CLKOUT1 CLKOUT1 (1.544MHz or 2.048MHz) CLKOUT2 (6.176MHz or 8.192MHz) SYNCOUT (short) SYNCOUT (long) Figure 4-5. Output Frame-Sync Alignment When CLKOUT2 = 5 x CLKOUT1 CLKOUT1 (1.544MHz) CLKOUT2 (7.720MHz) SYNCOUT 12 ...

Page 13

PACKAGE INFORMATION (The package drawing(s) in this data sheet may not reflect the most current specifications. The package number provided for each package is a link to the latest package outline information.) 5.1 16-Pin SO (300 mils) (56-G4009-001) 13 ...

Page 14

PLCC (56-G4001-001 ...

Page 15

... The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation. DESCRIPTION © 2006 Maxim Integrated Products • Printed USA DS21610 3.3V/5V Clock Rate Adapter ...

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