參數(shù)資料
型號(hào)： CDCE913_1
廠商： Texas Instruments, Inc.
英文描述： Programmable 1-PLL VCXO Clock Synthesizer With 1.8-V, 2.5-V, and 3.3-V Outputs
中文描述： 可編程1 - PLL頻率石英振蕩器時(shí)鐘合成器的1.8 V，2.5 V和3.3 V輸出
文件頁(yè)數(shù)： 13/23頁(yè)
文件大?。?/td> 428K
代理商： CDCE913_1
www.ti.com
SDA/SCL HARDWARE INTERFACE
Figure 13
shows how the CDCE913/CDCEL913 clock synthesizer is connected to the SDA/SCL serial interface
bus. Multiple devices can be connected to the bus but the speed may need to be reduced (400 kHz is the
maximum) if many devices are connected.
R
P
SDA
SCL
Master
Slave
CDCE913
CDCEL913
C
BUS
C
BUS
R
P
SDA/SCL CONFIGURATION REGISTERS
The clock input, control pins, PLLs, and output stages are user configurable. The following tables and
explanations describe the programmable functions of the CDCE913/CDCEL913. All settings can be manually
written into the device via the SDA/SCL bus or easily programmed by using the TI Pro-Clock software. TI
Pro-Clock software allows the user to quickly make all settings and automatically calculates the values for
optimized performance at lowest jitter.
CDCE913
CDCEL913
SCAS849A–JUNE 2007–REVISED AUGUST 2007
Note that the pullup resistors (R
P
) depends on the supply voltage, bus capacitance, and number of connected
devices. The recommended pullup value is 4.7 k
. It must meet the minimum sink current of 3 mA at
V
OL
max = 0.4 V for the output stages (for more details see the SMBus or I
2
C Bus specification).
Figure 13. SDA / SCL Hardware Interface
Table 7. SDA/SCL Registers
Address Offset
00h
10h
Register Description
Generic Configuration Register
PLL1 Configuration Register
Table
Table 9
Table 10
The grey-highlighted bits, described in the Configuration Registers tables in the following pages, belong to the
Control Terminal Register. The user can predefine up to eight different control settings. These settings then can
be selected by the external control pins, S0, S1, and S2. See the
Control Terminal Configuration
section.
Copyright 2007, Texas Instruments Incorporated
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Product Folder Link(s):
CDCE913 CDCEL913
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CDCE913PERF-EVM 功能描述:時(shí)鐘和定時(shí)器開(kāi)發(fā)工具 CDCE913 Perf Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類型:Clock Conditioners 工具用于評(píng)估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
CDCE913PERF-EVM 制造商:Texas Instruments 功能描述:CDCE913, CLOCK GENERATOR, EVAL MODULE
CDCE913PW 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 Programmable 1PLL VCXO Clock Synth RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
CDCE913PWG4 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 Programmable 1-PLL VCXO Clock Synth RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
CDCE913PWR 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 Programmable 1PLL VCXO Clock Synth RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
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