参数资料
型号: SMJ320C26FJ
厂商: TEXAS INSTRUMENTS INC
元件分类: 数字信号处理
英文描述: 16-BIT, 40 MHz, OTHER DSP, CQCC68
封装: CERAMIC, LCC-68
文件页数: 15/40页
文件大小: 577K
代理商: SMJ320C26FJ
SMJ320C26
DIGITAL SIGNAL PROCESSOR
SGUS 016A – AUGUST 1990 – REVISED AUGUST 2001
22
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
timing requirements over recommended operating conditions (see Note 1)
MIN
MAX
UNIT
tc(CI)
CLKIN cycle time
25
150
ns
tw(CIL)
CLKIN low pulse duration, tc(C) = 25 ns (see Note 2)
10
15
ns
tw(CIH)
CLKIN high pulse duration, tc(CI) = 25 ns (see Note 2)
10
15
ns
tsu(S)
SYNC setup time before CLKIN low
5
Q – 5
ns
th(S)
SYNC hold time from CLKIN low
8
ns
NOTES:
1. Q = 1/4tc(C)
2. CLKIN duty cycle [tr(CI) +tw(CIH)]/tc(CI) must be within 40-60%. CLKIN rise and fall times must be less than 5 ns.
Test
Point
From Output
Under Test
CL = 80 pF
IOH/IOL
Figure 2. Test Load Circuit
VIH (MIN)
VIL (MAX)
VOH (MIN)
VOL (MAX)
90%
10%
0
(a) Input
2.4 V
0
(b) Outputs
2.2 V
0.8 V
0.6 V
Figure 3. Voltage Reference Levels
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