CDCE906
Sintetizador de reloj, multiplicador y divisor de 3 PLL, 167 Mhz, con LVCMOS, programable
CDCE906
- High Performance 3:6 PLL based Clock Synthesizer / Multiplier / Divider
- User Programmable PLL Frequencies
- EEPROM Programming Without the Need to Apply High Programming Voltage
- Easy In-Circuit Programming via SMBus Data Interface
- Wide PLL Divider Ratio Allows 0-ppm Output Clock Error
- Generates Precise Video (27 MHz or 54 MHz) and Audio System Clocks from Multiple Sampling Frequencies (fS = 16, 22.05, 24, 32, 44.1, 48, 96 kHz)
- Clock Inputs Accept a Crystal or a Single-Ended LVCMOS or a Differential Input Signal
- Accepts Crystal Frequencies from 8 MHz up to 54 MHz
- Accepts LVCMOS or Differential Input Frequencies up to 167 MHz
- Two Programmable Control Inputs [S0/S1, A0/A1] for User Defined Control Signals
- Six LVCMOS Outputs with Output Frequencies up to 167 MHz
- LVCMOS Outputs can be Programmed for Complementary Signals
- Free Selectable Output Frequency via Programmable Output Switching Matrix [6x6] Including 7-Bit Post-Divider for Each Output
- PLL Loop Filter Components Integrated
- Low Period Jitter (Typ 60 ps)
- Features Spread Spectrum Clocking (SSC) for Lowering System EMI
- Programmable Center Spread SSC Modulation (±0.1%, ±0.25%, and ±0.4%) with a Mean Phase Equal to the Phase of the Non-Modulated Frequency
- Programmable Down Spread SSC Modulation (1%, 1.5%, 2%, and 3%)
- Programmable Output Slew-Rate Control (SRC) for Lowering System EMI
- 3.3-V Device Power Supply
- Commercial Temperature Range 0°C to 70°C
- Development and Programming Kit for Easy PLL Design and Programming
(TI Pro-Clock™) - Packaged in 20-Pin TSSOP
Pro-Clock is a trademark of Texas Instruments.
The CDCE906 is one of the smallest and powerful PLL synthesizer / multiplier / divider available today. Despite its small physical outlines, the CDCE906 is flexible. It has the capability to produce an almost independent output frequency from a given input frequency.
The input frequency can be derived from a LVCMOS, differential input clock, or a single crystal. The appropriate input waveform can be selected via the SMBus data interface controller.
To achieve an independent output frequency the reference divider M and the feedback divider N for each PLL can be set to values from 1 up to 511 for the M-Divider and from 1 up to 4095 for the N-Divider. The PLL-VCO (voltage controlled oscillator) frequency than is routed to the free programmable output switching matrix to any of the six outputs. The switching matrix includes an additional 7-bit post-divider (1-to-127) and an inverting logic for each output.
The deep M/N divider ratio allows the generation of zero ppm clocks from any reference input frequency (e.g., a 27 MHz).
The CDCE906 includes three PLLs of those one supports SSC (spread-spectrum clocking). PLL1, PLL2, and PLL3 are designed for frequencies up to 167 MHz and optimized for zero-ppm applications with wide divider factors.
PLL2 also supports center-spread and down-spread spectrum clocking (SSC). This is a common technique to reduce electro-magnetic interference. Also, the slew-rate controllable (SRC) output edges minimize EMI noise.
Based on the PLL frequency and the divider settings, the internal loop filter components will be automatically adjusted to achieve high stability and optimized jitter transfer characteristic of the PLL.
The device supports non-volatile EEPROM programming for easy-customized application. It is preprogrammed with a factory default configuration (see Figure 13) and can be reprogrammed to a different application configuration before it goes onto the PCB or reprogrammed by in-system programming. A different device setting is programmed via the serial SMBus interface.
Two free programmable inputs, S0 and S1, can be used to control for each application the most demanding logic control settings (outputs disable to low, outputs 3-state, power down, PLL bypass, etc).
The CDCE906 has three power supply pins, VCC, VCCOUT1 and VCCOUT2. VCC is the power supply for the device. It operates from a single 3.3-V supply voltage. VCCOUT1 and VCCOUT2 are the power supply pins for the outputs. VCCOUT1 supplies the outputs Y0 and Y1 and VCCOUT2 supplies the outputs Y2, Y3, Y4, and Y5. Both outputs supplies can be 2.3 V to 3.6 V. At output voltages lower than 3.3 V, the output drive current is limited.
The CDCE906 is characterized for operation from 0°C to 70°C.
Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | Programmable 3-PLL Clock Synthesizer / Multiplier/Divider datasheet (Rev. H) | 11 dic 2007 | |
Application note | High Speed Layout Guidelines (Rev. A) | 08 ago 2017 | ||
User guide | CDCE(L)9XX & CDCEx06 Programming Evaluation Module Manual (Rev. A) | 22 nov 2010 | ||
Application note | Troubleshooting I2C Bus Protocol | 19 oct 2009 | ||
User guide | CDCE(L)9XX & CDCEx06 Programming Evaluation Module Manual | 09 dic 2008 | ||
Application note | CDCx706/x906 Termination and Signal Integrity Guidelines (Rev. A) | 28 nov 2007 | ||
EVM User's guide | CDCE906/CDCE706 Programming EVM (Rev. B) | 14 ago 2007 | ||
User guide | CDCE906/CDCE706 Performance EVM (Rev. B) | 17 abr 2007 | ||
Application note | Clock Recommendations for the DM643x EVM | 29 nov 2006 | ||
Application note | Recommended Terminations for the Differential Inputs of CDCE906/CDCE706 | 10 ago 2006 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
CDCE906-706PERFEVM — Módulo de evaluación CDCE906 y CDCE706
CLOCKPRO — ClockPro Software
TI's ClockPro software allows users to program/configure the following devices in a friendly GUI interface:
- CDCE949
- CDCE937
- CDCE925
- CDCE913
- CDCE906
- CDCE706
- CDCEL949
- CDCEL937
- CDCEL925
- CDCEL913
It is intended to be used with the evaluation modules of the above devices.
Productos y hardware compatibles
Productos
Generadores de señal de reloj
Desarrollo de hardware
Placa de evaluación
Software
Herramienta de programación de software
SCAC073 — TI-Pro-Clock Programming Software
Productos y hardware compatibles
Productos
Generadores de señal de reloj
PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
TIDA-00080 — Diseño de referencia de módulo de medición de corriente y tensión CA/CC basado en modulador delta-si
TIDA-00171 — Diseño de referencia de medición de tensión y derivación de corriente aislada para controles de moto
Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
TSSOP (PW) | 20 | Ultra Librarian |
Pedidos y calidad
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
- Lugar de fabricación
- Lugar de ensamblaje
Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.
Soporte y capacitación
Foros de TI E2E™ con asistencia técnica de los ingenieros de TI
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