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參數(shù)資料
| 型號： | MC100EP195MNG |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DELAY LINE 1024TAP 32-QFN |
| 標(biāo)準(zhǔn)包裝： | 74 |
| 系列： | 100EP |
| 標(biāo)片/步級數(shù)： | 1024 |
| 功能： | 可編程 |
| 延遲到第一抽頭： | 2.2ns |
| 接頭增量： | 10ps |
| 可用的總延遲： | 2.2ns ~ 12.2ns |
| 獨(dú)立延遲數(shù)： | 1 |
| 電源電壓： | 3 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 32-QFN（5x5） |
| 包裝： | 管件 |
| 其它名稱： | MC100EP195MNG-ND MC100EP195MNGOS |
MC10EP195, MC100EP195
http://onsemi.com
13
Figure 5. AC Reference Measurement
IN
Q
tPHL
tPLH
VINPP = VIH(D) VIL(D)
VOUTPP = VOH(Q) VOL(Q)
Cascading Multiple EP195s
To increase the programmable range of the EP195,
internal cascade circuitry has been included. This circuitry
allows for the cascading of multiple EP195s without the
need for any external gating. Furthermore, this capability
requires only one more address line per added E195.
Obviously, cascading multiple programmable delay chips
will result in a larger programmable range: however, this
increase is at the expense of a longer minimum delay.
Figure 6 illustrates the interconnect scheme for cascading
two EP195s. As can be seen, this scheme can easily be
expanded for larger EP195 chains. The D10 input of the
EP195 is the CASCADE control pin. With the interconnect
scheme of Figure 6 when D10 is asserted, it signals the need
for a larger programmable range than is achievable with a
single device and switches output pin CASCADE HIGH and
pin CASCADE LOW. The A11 address can be added to
generate a cascade output for the next EP195. For a 2device
configuration, A11 is not required.
VEE
D0
VCC
Q
NC
VCC
CASCADE
EN
SETMAX
V
CC
V
EE
LEN
D2 D1
CASCADE
SETMIN
VBB
IN
VEE
D8
VEF
D3
D4
D5
D6
D7
D9
D10
IN
VCF
INPUT
OUTPUT
VEE
D0
VCC
Q
NC
VCC
CASCADE
EN
SETMAX
V
CC
V
EE
LEN
D2 D1
CASCADE
SETMIN
VBB
IN
VEE
D8
VEF
D3
D4
D5
D6
D7
D9
D10
IN
VCF
EP195
CHIP #2
EP195
CHIP #1
ADDRESS BUS
A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
Need if Chip #3 is used
Figure 6. Cascading Interconnect Architecture
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