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參數資料
| 型號： | CY2040-3 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 32 kHz and 24 MHz Clock Generator with Precision 32 kHz Input |
| 中文描述： | 32 kHz和24兆赫的精密時鐘發生器，32 kHz輸入 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 67K |
| 代理商： | CY2040-3 |
32 kHz and 24 MHz Clock Generator with Precision 32 kHz Input
Features
CY2040-2/3
Cypress Semiconductor Corporation
Document #: 38-07122 Rev. *A
3901 North First Street
San Jose
CA 95134
408-943-2600
December 14, 2002
Precision RTC 32 kHz and 24 MHz output
Power-down mode (32 kHz on) is < 50 uA
Suspend mode (V24M = off) is typically 5 uA
Low RMS period Jitter (< 40 ps)
16-pin TSSOP package
3.3V + 5% Voltage Supply
CY2040-2 multiplier 32.000 kHz × 750 = 24.0 MHz
(requires a single 32.000 kHz crystal)
CY2040-3 enables the 32 kHz and 24.0 MHz oscillators
(requires a 32.768 kHz and 24.000 MHz crystal)
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2
3
5
6
7
8
P D 24M #
XIN 32K
XO U T32K
V 32K
N C
O U T24M
O U T32K
32K P LLE N
9
16
10
11
12
13
14
15
V S S
V 24M
XIN 24M
XO U T24M
O U T 32K P LL
V S S
N C
N C
4
Logic Block Diagram
Pin Configuration
XIN32K
XOUT32K
PD24M#
CONTROL LOGIC
32kHz
OSC
24MHz
OSC
Q=INPUT
DIVIDER
PLL
POST
DIVIDER
P=FEEDBACK
DIVIDER
XIN24M
XOUT24M
OUT24M
OUT32K
32KPLLEN
OUT32KPLL
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