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參數(shù)資料
| 型號(hào)： | DS1073Z-80 |
| 英文描述： | 3V EconOscillator/Divider |
| 中文描述： | 3V的EconOscillator /分頻器 |
| 文件頁數(shù)： | 5/18頁 |
| 文件大?。?/td> | 260K |
| 代理商： | DS1073Z-80 |
DS1073
5 of 18
Table 2
DIV1
BIT
E/
I
BIT*
0
0
0
1
0
0
0
1
MSEL
BIT
0
0
1
X
1
0
0
X
M
BIT
0
1
X
X
X
0
1
X
OPERATION
0
0
0
0
1
1
1
1
INTERNAL OSCILLATOR DIVIDED BY 4*N
INTERNAL OSCILLATOR DIVIDED BY 2*N
INTERNAL OSCILLATOR DIVIDED BY N
EXTERNAL OSCILLATOR DIVIDED BY N
INTERNAL OSCILLATOR DIVIDED BY 1
INTERNAL OSCILLATOR DIVIDED BY 4
INTERNAL OSCILLATOR DIVIDED BY 2
EXTERNAL OSCILLATOR DIVIDED BY 1
*Assuming PDN bit = 1, otherwise internal/external selection will be controlled by the
PDN
/
SELX
pin.
DIV WORD
Figure 3
(MSB)
(LSB)
N (9-BITS)
PDN
This bit is used to determine the function of the
PDN
/
SELX
pin. If PDN = 0, the
PDN
/
SELX
pin can be
used to determine the timing reference (either the internal oscillator or an external reference/crystal). If
PDN = 1, the
PDN
/
SELX
pin is used to put the device into power-down mode.
EN0
This bit is used to determine whether the OUT0 pin is active or not. If
EN0
= 1, OUT0 is disabled (High-
impedance). If
EN0
= 0, the internal reference clock (MCLK) is output from OUT0. The OE pin has no
effect on OUT0, but OUT0 is disabled as part of the power-down sequence.
N
These nine bits determine the value of the programmable divider. The range of divisor values is from 2 to
513, and is equal to the programmed value of N plus 2:
Table 3
BIT
VALUES
000000000
000000001
.
.
.
.
.
111111111
DIVISOR (N)
VALUE
2
3
.
.
.
.
.
513
NOTE:
The maximum value of N is constrained by the minimum output frequency. If the internal clock is
selected, INTOSC/(M*N) must be greater than f
OUTmin
; if the external clock is selected, EXTCLK/N must
be greater than f
OUTmin
. (If DIV1 = 1, then INTOSC or EXTCLK, as applicable, must exceed f
OUTmin
).
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| DS1073Z-E1 | 功能描述:可編程振蕩器 RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝: |
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