參數(shù)資料
型號: DSP1627
英文描述: TVS 400W 6.5V BIDIRECT SMA
中文描述: DSP1627數(shù)字信號處理器
文件頁數(shù): 73/154頁
文件大小: 2365K
代理商: DSP1627
Data Sheet
March 2000
DSP1627 Digital Signal Processor
Lucent Technologies Inc.
73
9 Electrical Characteristics and Requirements
(continued)
9.1 Power Dissipation
Power dissipation is highly dependent on DSP program activity and the frequency of operation. The typical power
dissipation listed is for a selected application. The following electrical characteristics are preliminary and are subject
to change.
* T = CKI clock cycle for 1X input clock option or T = CKI clock cycle divided by M/(2N) for PLL clock option (see Section 4.12).
t
L
= PLL lock time (see Table 64).
Table 65. Power Dissipation and Wake-Up Latency
Operating Mode
(Unused Inputs at VDD or VSS)
Typical Power Dissipation (mW)
I/O Units ON
powerc[7:4] = 0x0
5 V
3 V
Wake-Up Latency
I/O Units OFF
powerc[7:4] = 0xf
5 V
(PLL Not Used
During Wake State)
5 V
(PLL Used
During Wake State)
5 V
3 V
3 V
3 V
Normal Operation ioc = 0x0180
PLL Disabled
CKI & CKO = 40 MHz
Crystal Oscillator
CMOS
220
241
223
74
80
76
214
235
217
72
78
74
Small Signal
CKI & CKO = 0 MHz
CMOS
0.19
3.0
0.067
1.1
0.19
3.0
0.067
1.1
Small Signal
ioc = 0x0180
Normal Operation
PLL Enabled
pllc = 0xFC0E
CKI = 10 MHz CKO = 40 MHz
Crystal Oscillator
CMOS
228
249
231
Power Management Modes
CKO = 40 MHz
77
83
78
222
243
225
75
81
77
Small Signal
Standard Sleep, External Interrupt
alf[15] = 1, ioc = 0x0180
PLL Disabled During Sleep
CMOS
25.2
46.2
28.0
8.4
14.0
9.8
17.8
38.8
20.8
5.6
12.0
7.2
3T*
3T*
3T*
3T* + t
L
3T* + t
L
3T* + t
L
Crystal Oscillator
Small Signal
Standard Sleep, External Interrupt
alf[15] = 1, ioc = 0x0180
PLL Enabled During Sleep
CMOS
33.2
54.0
36.0
10.9
17.1
12.4
25.8
46.0
28.8
7.5
14.0
9.2
3T*
3T*
3T*
Crystal Oscillator
Small Signal
Sleep with Slow Internal Clock
Crystal/Small Signal Enabled
powerc[15:14] = 01,
alf[15] = 1, ioc = 0x0180
PLL Disabled During Sleep
CMOS
1.4
21.9
3.9
0.4
6.2
2.1
1.1
21.8
3.8
0.3
6.1
2.0
1.5
μ
s
1.5
μ
s
1.5
μ
s
5.0
μ
s
5.0
μ
s
5.0
μ
s
1.5
μ
s + t
L
1.5
μ
s + t
L
1.5
μ
s + t
L
5.0
μ
s + t
L
5.0
μ
s + t
L
5.0
μ
s + t
L
Crystal Oscillator
Small Signal
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