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參數(shù)資料
| 型號(hào)： | P1819GF-08SR |
| 廠商： | ON Semiconductor |
| 文件頁(yè)數(shù)： | 2/6頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK EMI REDUCTION FREQ 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 扇出配送，頻率調(diào)制器，擴(kuò)展頻譜時(shí)鐘發(fā)生器 |
| PLL： | 是 |
| 輸入： | 時(shí)鐘，晶體 |
| 輸出： | CMOS |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:2 |
| 差分 - 輸入:輸出： | 無(wú)/無(wú) |
| 頻率 - 最大： | 40MHz |
| 除法器/乘法器： | 是/無(wú) |
| 電源電壓： | 3 V ~ 3.6 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOICN |
| 包裝： | 帶卷 (TR) |
P1819
Rev.3 | Page 2 of 6 | www.onsemi.com
Pin Configuration
Pin Description
Pin#
Pin Name
Type
Description
P1819B
P1819G
1
XIN / CLKIN
I
Crystal Connection or external frequency input. This pin
has dual functions. It can be connected to either an
external crystal or an external reference clock.
2
VSS
P
Ground Connection. Connect to system ground.
3
SRS
I
Spread range select. Digital logic input used to select
frequency deviation (Refer to Spread Deviation Selection
Table). This pin has an internal pull-up resistor.
3
D_C / NC
I
Digital logic input used to select Down (LOW) or Center
(HIGH) spread options (Refer to Spread Deviation
Selection
Table). This pin has an internal pull-up
resistor.
4
ModOUT
O
Spread spectrum clock output. (Refer to Input Frequency
and Modulation Rate
Table and Spread Deviation
Selection
Table).
5
REF
O
Non-modulated Reference clock output of the input
frequency.
6
PD#
I
Power down control pin. Pull XIN/CLKIN and PD# LOW
to enable Power-Down mode. This pin has an internal
pull-up resistor.
7
VDD
P
Power Supply for the entire chip.
8
XOUT
O
Crystal Connection. Input connection for an external
crystal. If using an external reference, this pin must be
left unconnected.
Note: Pin 3 is NC in P1819Q.
Input Frequency and Modulation Rate
Part Number
Input Frequency Range
Output Frequency range
Modulation rate
P1819
20MHz to 40MHz
Input Frequency / 896
VDD
PD#
XOUT
REF
1
2
3
4
5
6
7
8
P1819 B
XIN / CLKIN
VSS
SRS
ModOUT
VDD
REF
1
2
3
4
5
6
7
8
P1819 G
XIN / CLKIN
VSS
D_C / NC
ModOUT
PD#
XOUT
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