參數(shù)資料
型號： ADSP-21992BSTZ
廠商： Analog Devices Inc
文件頁數(shù)： 14/60頁
文件大小： 0K
描述： IC DSP CONTROLLER 16BIT 176LQFP
標準包裝： 1
系列： ADSP-21xx
類型： 定點
接口： SPI，SSP
時鐘速率： 160MHz
非易失內(nèi)存： 外部
芯片上RAM： 128kB
電壓 - 輸入/輸出： 3.30V
電壓 - 核心： 2.50V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 176-LQFP
供應(yīng)商設(shè)備封裝： 176-LQFP（24x24）
包裝： 托盤
ADSP-21992
Rev. A
|
Page 21 of 60
|
August 2007
Table 7. Recommended Operating Conditions—ADSP-21992BST
Parameter
Conditions
Min
Typ
Max
Unit
VDDINT
Internal (Core) Supply Voltage
2.375
2.5
2.625
V
VDDEXT
External (I/O) Supply Voltage
3.135
3.3
3.465
V
AVDD
Analog Supply Voltage
2.375
2.5
2.625
V
CCLK
DSP Instruction Rate, Core Clock
0
160
MHz
HCLK1, 2
Peripheral Clock Rate
0
80
MHz
CLKIN3
Input Clock Frequency
0
160
MHz
TJUNC
4
Silicon Junction Temperature
140
C
TAMB
Ambient Operating Temperature
–40
+85
C
1 The HCLK frequency may be made to appear at the dedicated CLKOUT pin of the device. For low power operation, however, the CLKOUT pin can be disabled.
2 The peripherals operate at the HCLK rate, which may be selected to be equal to CCLK or CCLK 2, up to a maximum of a 80 MHz HCLK for the ADSP-21992BST.
3 In order to attain the correct CCLK and HCLK values, the input clock frequency or crystal frequency depends on the internal operation of the clock generation PLL
circuit and the associated frequency ratio.
4 The maximum junction temperature is limited to 140°C in order to meet all of the electrical specifications. It is ultimately the responsibility of the user to ensure that
the power dissipation of the ADSP-21992 (including all dc and ac loads) is such that the maximum junction temperature limit of 140°C is not exceeded.
Table 8. Recommended Operating Conditions—ADSP-21992YST
Parameter
Conditions
Min
Typ
Max
Unit
VDDINT
Internal (Core) Supply Voltage
2.375
2.5
2.625
V
VDDEXT
External (I/O) Supply Voltage
3.135
3.3
3.465
V
AVDD
Analog Supply Voltage
2.375
2.5
2.625
V
CCLK
DSP Instruction Rate, Core Clock
0
100
MHz
HCLK1, 2
Peripheral Clock Rate
0
50
MHz
CLKIN3
Input Clock Frequency
0
100
MHz
TJUNC
4
Silicon Junction Temperature
140
C
TAMB
Ambient Operating Temperature
–40
+125
C
1 The HCLK frequency may be made to appear at the dedicated CLKOUT pin of the device. For low power operation, however, the CLKOUT pin can be disabled.
2 The peripherals operate at the HCLK rate, which may be selected to be equal to CCLK or CCLK 2, up to a maximum of an 50 MHz HCLK for the ADSP-21992YST.
3 In order to attain the correct CCLK and HCLK values, the input clock frequency or crystal frequency depends on the internal operation of the clock generation PLL
circuit and the associated frequency ratio.
4 The maximum junction temperature is limited to 140°C in order to meet all of the electrical specifications. It is ultimately the responsibility of the user to ensure that
the power dissipation of the ADSP-21992 (including all dc and ac loads) is such that the maximum junction temperature limit of 140°C is not exceeded.
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