DS2187S Maxim Integrated Products, DS2187S Datasheet
DS2187S
Specifications of DS2187S
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DS2187S Summary of contents
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FEATURES Line interface for T1 (1.544 MHz) and CEPT (2.048 MHz) primary rate networks Extracts clock and data from twisted pair or coax Meets requirements of PUB 43801, TR 62411, and applicable CCITT G.823 Precision on-chip PLL eliminates external ...
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DS2187 BLOCK DIAGRAM Figure 1 LINE INPUT Input signals are coupled to the DS2187 via a 1:2 center-tapped transformer as shown in Figure 2. For T1 applications, R1 and R2 must be 200 ohms in order to properly terminate the ...
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PIN DESCRIPTION Table 1 PIN SYMBOL TYPE 1 AVDD 2 RAIS 3 ZCSEN 4 LCAP 5 RCLKSEL 6 RTIP 7 RRING 8 LOCK 9 AVSS 10 DVSS 11 RCLK 12 RNEG 13 RPOS BPV 16 AIS 17 ...
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SYSTEM LEVEL INTERCONNECT Figure 2 OUTPUT TIMING Figure ...
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CODE SUPPRESSION The device will decode incoming B8ZS (RCLKSEL=0) or HDB3 (RCLKSEL=1) code words and replace them with an all-0 code when ZCSEN=1. When ZCSEN=0, code words will pass through the device without being altered. This feature can be ...
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ABSOLUTE MAXIMUM RATINGS* Voltage on Any Pin Relative to Ground Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the ...
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ANALOG ELECTRICAL CHARACTERISTICS PARAMETER Clock Acquisition RTIP, RRING Minimum Sensitivity FLL Loop Bandwidth Capture Range Input Jitter Tolerance NOTES: 1. Time from reappearance of a valid signal at RPOS and RNEG to a LOCK=1. 2. Minimum peak voltage necessary for ...
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NOTES applications (RCLKSEL=0). 2. CEPT applications (RCLKSEL=1). 3. Minimum and maximum limits shown reflect changes in DPLL divide ratio as required to track jitter. AC TIMING DIAGRAM Figure ...
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DS2187 RECEIVE LINE INTERFACE 18-PIN DIP PKG 18-PIN DIM MIN MAX A IN 0.890 0.920 0.240 0.260 MM 6.10 6. 0.120 0.140 MM 3.05 3. 0.300 0.325 MM 7.62 8. 0.015 ...
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... DS2187S RECEIVE LINE INTERFACE 20-PIN SOIC PKG 18-PIN DIM MIN MAX A IN 0.500 0.511 MM 12.70 12. 0.290 0.300 MM 7.37 7. 0.089 0.095 MM 2.26 2. 0.004 0.012 MM 0.102 0. 0.094 0.105 MM 2.38 2. 0.050 BSC MM 1.27 BSC H IN 0.398 0.416 MM 10.11 10. 0.009 0.013 MM 0.229 0. 0.013 0.019 MM 0.33 ...