SpecificaTIons for selecTIng the appropriate crystal in a T1 or E1 application are given in the following order.
- Table 1: DS2155, DS21x5y, DS2154, and DS2152 Crystal Specifications
- Table 2: Recommended Crystal Manufacturers that meet DS2155, DS21x5y, DS2154, and DS2152 Crystal Specifications
- Table 3: Oscillator Manufacturers
- Table 4: DS2151 and DS2153 Crystal Specifications
- Table 5: Recommended Crystal Manufacturers that meet DS2151 and DS2153 Crystal Specifications
![DS2151, DS2152, DS2153, DS2154,第2张 DS2151, DS2152, DS2153, DS2154,Figure 1. Crystal connection.,第2张](/upload/website_attach/20220726/200942093841256.gif)
Figure 1. Crystal connection.
Specifications for selecting the appropriate crystal in a T1 or E1 application are given in Table 1. A list of crystal manufacturers is in Table 2. Table 5 lists oscillator manufacturers.
Table 1. DS2155, DS21x5Y, DS2154 and DS2152 Crystal Specifications
Table 2. Recommended Crystal Manufacturers for DS2155, DS21x5Y, DS2154, and DS2152
Menlo Park CA 94025
650-470-7700 or 800-227-8974 Commercial Temp Range
(T1, 3.088 MHz) NYP0308-XXGHE(L)*
(E1, 4.096 MHz) NYP0409-XXGHE (L)*
*Need to use divider for MCLK.
Costa Mesa, CA 92626-1401
714-433-1200 Commercial Temp Range
Crystal available for both T1 and E1 mode of operations.
Table 3. Recommended Oscillator Manufacturers
Menlo Park, CA 94025-1114
650-470-7700 or 800-227-8974 5V 8-Pin DIP
SCS-DS-1046 1.544MHz
SCS-DS-1047 2.048MHz
SCS-DS-1048 1.544MHz
SCS-DS-1049 2.048MHz
The DS2151 and DS2153 require a crystal that can be pulled off its center frequency. Table 5 lists manufacturers. The part numbers given are for leaded packages. Surface-mount devices typically do not meet the pullability specification. Some of the following manufacturers may offer surface-mountable packages in which the leads have been preformed (gull-winged) with a clip added to provide a third contact point.
Table 4. DS2151 and DS2153 Crystal Specifications
CL = 45pF, f = + 175 to - 250ppm
Table 5. Recommended Crystal Manufacturers for DS2151 and DS2153
P.O. Box 630
Yankton, SD 57078-0630
605-665-9321
605-665-1709 Commercial Temp Range
(T1, 6.176MHz) 4575-032
(E1, 8.192MHz) 4575-031
Industrial Temp Range
(T1, 6.176MHz) 4144-002
(E1, 8.192MHz) 4144-001
Note: Do not use MP-1 Prefix
Miami, FL 33172
305-593-6033
FAX: 305-594-3973 Commercial Temp Range
(T1, 6.176MHz) A-6.176-18.5-DS
(E1, 8.192MHz) A-8.192-18.5-DS
Industrial Temp Range
(T1, 6.176MHz) A-6.176-18.5-DSE
(E1, 8.192MHz) A-8, 192-18.5-DSE
Suntrac (Dist) 11925 Ventura Blvd.
Studio City, CA 91604
818-509-8985 Industrial Temp Range
(T1, 6.176MHz) SE 061-32
(E1, 8.192MHz) SE 081-30
P.O. Box 6017
Fort Myers, FL 33906-6017
941-936-2297
FAX: 941-936-3750 Commercial Temp Range
(T1, 6.176MHz) JC6B18
(E1, 8.192MHz) JC8B18
Costa Mesa, CA 92626-1401
714-433-1200 Commercial Temp Range
(T1, 6.176MHz) ECX-4173-6.176M
(E1, 8.192MHz) ECX-3876-8.192M
624 W. University Suite 265
Denton, TX 76201 COMMERCIAL TEMP RANGE
(T1, 6.176MHz) SRX5310(L)
(E1, 8.192MHz) SRX5469(L)
Maxim has qualified a sample of each device from the above manufacturers and has found that the device meets or exceeds our specifications. We do not conduct an ongoing qualification of these manufacturers.
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