CDCEL937PW
ActivePROGRAMMABLE 3-PLL VCXO CLOCK SYNTHESIZER WITH 1.8-V LVCMOS OUTPUTS
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CDCEL937PW
ActivePROGRAMMABLE 3-PLL VCXO CLOCK SYNTHESIZER WITH 1.8-V LVCMOS OUTPUTS
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | CDCEL937PW | CDCEL937 Series |
|---|---|---|
| Differential - Input:Output [custom] | False | False |
| Differential - Input:Output [custom] | False | False |
| Divider/Multiplier | Yes/No | Yes/No |
| Frequency - Max [Max] | 230 MHz | 230 MHz |
| Input | LVCMOS, Crystal | LVCMOS, Crystal |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Circuits | 1 | 1 |
| Operating Temperature [Max] | 85 °C | 85 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Output | LVCMOS | LVCMOS |
| Package / Case | 0.173 in | 0.173 in |
| Package / Case | 4.4 mm | 4.4 mm |
| Package / Case | 20-TSSOP | 20-TSSOP |
| PLL | Yes with Bypass | Yes with Bypass |
| Ratio - Input:Output [custom] | 1 | 1 |
| Ratio - Input:Output [custom] | 7 | 7 |
| Supplier Device Package | 20-TSSOP | 20-TSSOP |
| Type | Clock/Frequency Synthesizer | Clock/Frequency Synthesizer |
| Voltage - Supply [Max] | 1.9 V | 1.9 V |
| Voltage - Supply [Min] | 1.7 V | 1.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 4.25 | |
| 10 | $ 3.82 | |||
| 70 | $ 3.61 | |||
| 140 | $ 3.13 | |||
| 280 | $ 2.97 | |||
| 560 | $ 2.83 | |||
| Texas Instruments | TUBE | 1 | $ 4.57 | |
| 100 | $ 4.00 | |||
| 250 | $ 2.81 | |||
| 1000 | $ 2.26 | |||
CDCEL937 Series
Programmable 3-PLL VCXO clock synthesizer with 1.8-V LVCMOS outputs
| Part | PLL | Frequency - Max [Max] | Type | Output | Number of Circuits | Input | Voltage - Supply [Min] | Voltage - Supply [Max] | Ratio - Input:Output [custom] | Ratio - Input:Output [custom] | Supplier Device Package | Divider/Multiplier | Mounting Type | Package / Case | Package / Case | Package / Case | Operating Temperature [Min] | Operating Temperature [Max] | Differential - Input:Output [custom] | Differential - Input:Output [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments CDCEL937PW | Yes with Bypass | 230 MHz | Clock/Frequency Synthesizer | LVCMOS | 1 | Crystal, LVCMOS | 1.7 V | 1.9 V | 1 | 7 | 20-TSSOP | Yes/No | Surface Mount | 0.173 in | 4.4 mm | 20-TSSOP | -40 °C | 85 °C | ||
Texas Instruments CDCEL937PWR | Yes with Bypass | 230 MHz | Clock/Frequency Synthesizer | LVCMOS | 1 | Crystal, LVCMOS | 1.7 V | 1.9 V | 1 | 7 | 20-TSSOP | Yes/No | Surface Mount | 0.173 in | 4.4 mm | 20-TSSOP | -40 °C | 85 °C | ||
Texas Instruments CDCEL937PWRG4 | Yes with Bypass | 230 MHz | Clock/Frequency Synthesizer | LVCMOS | 1 | Crystal, LVCMOS | 1.7 V | 1.9 V | 1 | 7 | 20-TSSOP | Yes/No | Surface Mount | 0.173 in | 4.4 mm | 20-TSSOP | -40 °C | 85 °C |
Description
General part information
CDCEL937 Series
The CDCE937 and CDCEL937 devices are modular PLL-based low cost, high-performance, programmable clock synthesizers, multipliers and dividers. The devices generate up to 7 output clocks from a single input frequency. Each output can be programmed in-system for any clock frequency up to 230MHz, using up to three independent configurable PLLs.
The CDCEx937 has separate output supply pins, VDDOUT, which is 1.8V for CDCEL937 and to 2.5V to 3.3V for CDCE937.
The input accepts an external crystal or LVCMOS clock signal. If an external crystal is used, an on-chip load capacitor is adequate for most applications. The value of the load capacitor is programmable from 0 to 20pF. Additionally, an on-chip VCXO is selectable which allows synchronization of the output frequency to an external control signal, that is, PWM signal.
Documents
Technical documentation and resources