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CDC3S04YFFR Datasheet(PDF) 1 Page - Texas Instruments |
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CDC3S04YFFR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 27 page VDD_ANA LDO VBAT MCLK_IN VLDO REQ1 CLK1 REQ2 CLK2 REQ3 CLK3 VDD_DIG I C 2 Control Register ADR_A0 MCLK_REQ SCLH SDAH GND_ANA GND_DIG RESET Reset REQ4 CLK4 Decoder 1 2 D C A WCSP B TopView (SolderBallUnderneath) 3 4 E CLK1 CLK2 REQ1 CLK3 CLK4 REQ3 GND_ DIG VLDO REQ4 REQ2 ADR_ A0 VDD_ DIG MCLK_ IN MCLK_ REQ RESET VDD_ ANA GND_ ANA SCLH VBAT SDAH CDC3S04 www.ti.com SCAS883B – OCTOBER 2009 – REVISED MAY 2011 Quad Sine-Wave Clock Buffer With LDO Check for Samples: CDC3S04 1 FEATURES DESCRIPTION The CDC3S04 is a four-channel low-power low-jitter • 1:4 Low-Jitter Clock Buffer sine-wave clock buffer. It can be used to buffer a • Single-Ended Sine-Wave Clock Input and single master clock to multiple peripherals. The four Outputs sine-wave outputs (CLK1 –CLK4) are designed for • Ultralow Phase Noise and Standby Current minimal channel-to-channel skew and ultralow additive output jitter. • Individual Clock Request Inputs for Each Output Each output has its own clock request inputs which enables the dedicated clock output. These clock • On-Chip Low-Dropout Output (LDO) for requests are active-high (can also be changed to be Low-Noise TCXO Supply active-low via I2C), and an output signal is generated • Serial I2C Interface (Compatible With that can be sent back to the master clock to request High-Speed Mode, 3.4 Mbit/s) the clock (MCLK_REQ). MCKL_REQ is an • 1.8-V Device Power Supply open-source output and supports the wired-OR function (default mode). It needs an external pulldown • Wide Temperature Range, –30°C to 85°C resistor. MCKL_REQ can be changed to wired-AND • ESD Protection: 2 KV HBM, 750 V CDM, and or push-pull functionality via I2C. 100 V MM The CDC3S04 also provides an I2C interface • Small 20-Pin Chip-Scale Package: 0.4-mm (Hs-mode) that can be used to enable or disable the Pitch WCSP (1.6 mm × 2 mm) outputs, select the polarity of the REQ inputs, and allow control of internal decoding. APPLICATIONS The CDC3S04 features an on-chip high-performance • Cellular Phones LDO that accepts voltages from 2.3 V to 5.5 V and • Smart Phones outputs a 1.8-V supply. This 1.8-V supply can be used to power an external 1.8-V TCXO. It can be • Mobile Handsets enabled or disabled for power saving at the TCXO. • Portable Systems • Wireless Modems Including GPS, WLAN, W-BT, D-TV, DVB-H, FM Radio, WiMAX, and System Clock 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2011, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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