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參數(shù)資料
| 型號(hào)： | FS781BT |
| 英文描述： | MISCELLANEOUS CLOCK GENERATOR|TSSOP|8PIN|PLASTIC |
| 中文描述： | 雜項(xiàng)時(shí)鐘發(fā)生器| TSSOP封裝| 8引腳|塑料 |
| 文件頁(yè)數(shù)： | 3/13頁(yè) |
| 文件大?。?/td> | 103K |
| 代理商： | FS781BT |
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LOW EMI SPECTRUM SPREAD CLOCK
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
Document#: 38-07029 Rev. **
05/07/2001
Page 3 of 13
APPROVED
PRODUCT
FS781/82/84
Pin Configuration
Pin Description
Pin No.
1/2
Pin Name
Xin / Xout
I/O
I/O
TYPE
Analog
Description
Pins form an on-chip reference oscillator when connected to
terminals of an external parallel resonant crystal. Xin may be
connected to TTL/CMOS external clock source. If Xin connected
to external clock other than crystal, leave Xout (pin 2)
unconnected.
Digital control inputs to select input frequency range and output
frequency scaling. Refer to Tables 7 & 8 for selection. S0 has
internal pulldown. S1 has internal pullup.
7/3
S0 / S1
I
CMOS/TTL
4
LF
I
Analog
Loop Filter. Single ended tri-state output of the phase detector. A
two-pole passive loop filter is connected to Loop Filter (LF).
Modulated Clock Frequency Output. The center frequency is the
same as the input reference frequency for FS781. Input
frequency is multiplied by 2x and 4x for FS782 and FS784
respectively.
Positive Power Supply.
Power Supply Ground
6
FSOUT
O
CMOS/TTL
8
5
VDD
VSS
P
P
Power
Power
Table 1
Output Frequency Selection
Product Number
FS781
FS782
FS784
FSOUT Frequency Scaling
1x
2x
4x
Description
1x Modulated Frequency of Input Clock
2x Modulated Frequency of Input Clock
4x Modulated Frequency of Input Clock
Table 2. FSOUT SSCG (Modulated Output Clock) Product Selection
1
2
3
4
8
7
6
5
S0
VDD
Xin
Xout
FSOUT
VSS
LF
S1
FS78x
8 Pin TSSOP Package
1
2
3
4
8
7
6
5
Xin
Xout
S1
LF
VDD
S0
FSOUT
VSS
FS78x
8 Pin SOIC Package
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FS781BZB | MISCELLANEOUS CLOCK GENERATOR|SOP|8PIN|PLASTIC |
| FS782BT | MISCELLANEOUS CLOCK GENERATOR|TSSOP|8PIN|PLASTIC |
| FS782BZB | MISCELLANEOUS CLOCK GENERATOR|SOP|8PIN|PLASTIC |
| FS784BT | MISCELLANEOUS CLOCK GENERATOR|TSSOP|8PIN|PLASTIC |
| FS784BZB | MISCELLANEOUS CLOCK GENERATOR|SOP|8PIN|PLASTIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FS781BZB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MISCELLANEOUS CLOCK GENERATOR|SOP|8PIN|PLASTIC |
| FS782 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Low EMI Spectrum Spread Clock |
| FS782BT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MISCELLANEOUS CLOCK GENERATOR|TSSOP|8PIN|PLASTIC |
| FS782BZB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MISCELLANEOUS CLOCK GENERATOR|SOP|8PIN|PLASTIC |
| FS784 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Low EMI Spectrum Spread Clock |
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