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參數(shù)資料
| 型號(hào)： | ICS1493K-17LFT |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CLOCK SYNTHESIZER 20-VFQFPN |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 時(shí)鐘/頻率合成器，扇出配送，擴(kuò)展頻譜時(shí)鐘發(fā)生器 |
| PLL： | 帶旁路 |
| 輸入： | 時(shí)鐘，晶體 |
| 輸出： | 時(shí)鐘 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:5 |
| 差分 - 輸入:輸出： | 無/無 |
| 頻率 - 最大： | 48MHz |
| 除法器/乘法器： | 無/無 |
| 電源電壓： | 1.7 V ~ 2 V |
| 工作溫度： | -10°C ~ 80°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 20-VFQFPN（4x4） |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | 1493K-17LFT |
ICS1493-17
CLOCK SYNTHESIZER FOR PORTABLE SYSTEMS
SYNTHESIZERS
IDT / ICS CLOCK SYNTHESIZER FOR PORTABLE SYSTEMS
2
ICS1493-17
REV A 101005
Pin Assignment
Output Enable Table
Note: OE pin has an internal pull-down resistor.
Pin Descriptions
1
GND
20-pin QFN
48M
VDDO
OE
VDD
GND
VDD
37M
VDDO
22/24M
X1
X2
VD
D
27M
GN
D
22M
GN
D
SC
K
SD
A
TA
GN
D
6
11
16
OE
Clock Output State
0
Normal Operation
1
Hi-Z
Pin
Number
Pin
Name
Pin
Type
Pin Description
1
GND
Power
Connect to ground.
2
48M
Output
48 MHz clock output. High impedance state when OE=1.
3
VDDO
Power
Output voltage level. Connect to +1.8 or 2.5 V. Same voltage as pin
12.
4OE
Input
Output Enable pin. See table above. Internal pull-down resistor.
5
VDD
Power
Connect to +1.8 V.
6
22M
Output
22.5792 MHz clock output. Internal pull-down. High impedance state
when OE=1.
7
GND
Power
Connect to ground.
8
SCK
Input
I2C bus clock pin. Internal pull-up resistor.
9
SDATA
Input
I2C bus data pin. Internal pull-up resistor.
10
GND
Power
Connect to ground.
11
22/24M
Output
Selectable output clock of either 22.5792M or 24.576M. See table.
Internal pull-down. High impedance state. OE=1.
12
VDDO
Power
Output voltage level. Connect to +1.8 or 2.5 V. Same voltage as pin 3.
13
37M
Output
Spread spectrum 37 MHz clock output. See table. Internal pull-down.
High impedance state when OE=1.
14
VDD
Power
Connect to +1.8 V.
15
GND
Power
Connect to ground.
16
GND
Power
Connect to ground.
17
27M
Output
27 MHz reference clock output. Internal pull-down. High impedance
state when OE=1.
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