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參數(shù)資料
| 型號： | ADSP-2184BSTZ-160 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 19/31頁 |
| 文件大小： | 0K |
| 描述： | IC DSP CONTROLLER 16BIT 100LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | ADSP-21xx |
| 類型： | 定點 |
| 接口： | 主機接口，串行端口 |
| 時鐘速率： | 40MHz |
| 非易失內(nèi)存： | 外部 |
| 芯片上RAM： | 20kB |
| 電壓 - 輸入/輸出： | 5.00V |
| 電壓 - 核心： | 5.00V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-LQFP |
| 供應(yīng)商設(shè)備封裝： | 100-LQFP（14x14） |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 738 (CN2011-ZH PDF) |
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ADSP-2184
–26–
REV. 0
OUTPUT DRIVE CURRENTS
Figure 20 shows typical I-V characteristics for the output drivers
of the ADSP-2184. The curves represent the current drive
capability of the output drivers as a function of output voltage.
SOURCE VOLTAGE – V
0
60
10
20
30
40
50
SOURCE
CURRENT
–
mA
60
0
–20
–40
–60
40
20
VDD = 5.0V @ +25 C
VDD = 5.5V @ –40 C
VDD = 4.5V @ +85 C
VDD = 5.0V @ +25 C
VDD = 4.5V @ +85 C
VDD = 5.5V @ –40 C
VOL
VOH
Figure 20. Typical Drive Currents
POWER DISSIPATION
To determine total power dissipation in a specific application,
the following equation should be applied for each output:
C
× V
DD
2
× f
C = load capacitance, f = output switching frequency.
Example
In an application where external data memory is used and no
other outputs are active, power dissipation is calculated as follows:
Assumptions
External data memory is accessed every cycle with 50% of the
address pins switching.
External data memory writes occur every other cycle with
50% of the data pins switching.
Each address and data pin has a 10 pF total load at the pin.
The application operates at VDD = 5.0 V and tCK = 25 ns.
Total Power Dissipation = PINT + (C
× V
DD
2
× f)
PINT = internal power dissipation from Power vs. Frequency
graph (Figure 21).
(C
× V
DD
2
× f) is calculated for each output:
# of
Pins
C
VDD
2
f
Address,
DMS
8
× 10 pF × 52 V
× 40 MHz = 80 mW
Data Output,
WR 9
× 10 pF × 52 V
× 20 MHz = 45 mW
RD
1
× 10 pF × 52 V
× 20 MHz = 5 mW
CLKOUT
1
× 10 pF × 52 V
× 40 MHz = 10 mW
140 mW
Total power dissipation for this example is PINT + 40 mW.
VALID FOR ALL TEMPERATURE GRADES.
1POWER REFLECTS DEVICE OPERATING WITH NO OUTPUT LOADS.
2I
DD MEASUREMENT TAKEN WITH ALL INSTRUCTIONS EXECUTING FROM INTERNAL
MEMORY. 50% OF THE INSTRUCTIONS ARE MULTIFUNCTION (TYPES 1, 4, 5, 12, 13, 14)
30% ARE TYPE 2 AND TYPE 6, AND 20% ARE IDLE INSTRUCTIONS.
3IDLE REFERS TO ADSP-2184 STATE OF OPERATION DURING EXECUTION OF IDLE
INSTRUCTION. DEASSERTED PINS ARE DRIVEN TO EITHER VDD OR GND.
4TYPICAL POWER DISSIPATION AT 5.0V V
DD AND TA = 25 C EXCEPT WHERE SPECIFIED.
65
25
40
35
30
60
55
45
50
POWER
(P
IDLE
n
)–
mW
62.1mW
34.7mW
32.8mW
34.3mW
36.6mW
70.55mW
IDLE (16)
IDLE (128)
IDLE
POWER, IDLE
n MODES2
70
75
40
95
70
65
60
55
90
85
75
80
50
POWER
(P
IDLE
)–
mW
82.28mW
91.52mW
VDD = 5.5V
62.1mW
70.55mW
VDD = 5.0V
44.73mW
51.705mW
VDD = 4.5V
POWER, IDLE1, 2, 4
1/tCYC – MHz
33.33
40
175
400
275
250
225
200
375
350
300
325
330mW
250mW
180mW
300mW
225mW
2184 POWER, INTERNAL1, 2, 3
385mW
POWER
(P
INT
)–
mW
VDD = 5.5V
VDD = 5.0V
VDD = 4.5V
45
1/tCYC – MHz
33.33
40
1/tCYC – MHz
33.33
40
150
Figure 21. Power vs. Frequency
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADSP-2184BSTZ-160 | 制造商:Analog Devices 功能描述:Digital Signal Processor IC |
| ADSP-2184L | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
| ADSP-2184LBST-160 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 40MHz 40MIPS 100-Pin LQFP 制造商:Analog Devices 功能描述:IC MICROCOMPUTER 16-BIT |
| ADSP-2184LBSTZ-160 | 功能描述:IC DSP CONTROLLER 16BIT 100LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號處理器） 系列:ADSP-21xx 標(biāo)準(zhǔn)包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI，以太網(wǎng)，RS-232 時鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA（20x20） 包裝:托盤 |
| ADSP-2184LBSTZ-1602 | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
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