参数资料
型号: ADSP-21368KBPZ-2A
厂商: Analog Devices Inc
文件页数: 15/64页
文件大小: 0K
描述: IC DSP 32BIT 333MHZ 256-BGA
产品培训模块: SHARC Processor Overview
标准包装: 1
系列: SHARC®
类型: 浮点
接口: DAI,DPI
时钟速率: 333MHz
非易失内存: ROM(768 kB)
芯片上RAM: 256kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.20V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 256-LBGA 裸露焊盘
供应商设备封装: 256-BGA(27x27)
包装: 托盘
Rev. F
|
Page 22 of 64
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October 2013
Clock Signals
The processors can use an external clock or a crystal. See the
CLKIN pin description in Table 8 on Page 13. Programs can
configure the processor to use its internal clock generator by
connecting the necessary components to CLKIN and XTAL.
Figure 8 shows the component connections used for a crystal
operating in fundamental mode.
Note that the clock rate is achieved using a 25 MHz crystal and a
PLL multiplier ratio 16:1 (CCLK:CLKIN achieves a clock speed
of 400 MHz). To achieve the full core clock rate, programs need
to configure the multiplier bits in the PMCTL register.
Figure 8. 400 MHz Operation (Fundamental Mode Crystal)
C1
22pF
Y1
R1
1M *
XTAL
CLKIN
C2
22pF
25.00 MHz
R2
47 *
ADSP-2136x
R2 SHOULD BE CHOSEN TO LIMIT CRYSTAL
DRIVE POWER. REFER TO CRYSTAL
MANUFACTURER’S SPECIFICATIONS
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