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參數(shù)資料
| 型號： | LMX2515LQ1321/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 26 MHz, QCC28 |
| 封裝： | 5 X 5 MM, 0.75 MM HEIGHT, LLP-28 |
| 文件頁數(shù)： | 14/17頁 |
| 文件大?。?/td> | 254K |
| 代理商： | LMX2515LQ1321/NOPB |
Electrical Characteristics (V
IN = 2.8 V, refer to Typical Application Circuit; Limits in standard typeface are for
TA = 25 C; Limits in boldface type apply over the operating temperature range from -20 C
≤ T
A
≤ 75 C unless otherwise
noted.) (Continued)
Symbol
Parameter
Condition
Min
Typ
Max
Units
RF VCO
L(f)
RFout
Phase Noise in Normal Mode.
@ 25 kHz offset
-95
-93
-91
dBc/Hz
@ 50 kHz offset
-106
-103
-101
dBc/Hz
@ 100 kHz offset
-115
-113
-111
dBc/Hz
@ 1 MHz offset
-135
-133
dBc/Hz
2nd Harmonic Suppression
-25
dBc
3rd Harmonic Suppression
-20
dBc
Spurious Tones
@
≤ 25 kHz offset
-45
dBc
@ 25 kHz < offset
≤ 50 kHz
-60
dBc
@ 50 kHz < offset
≤ 100 kHz
-69
dBc
@ offset > 100 kHz
-75
dBc
DIGITAL INTERFACE (DATA, CLK, LE, LD, CE)
V
IH
High-Level Input Voltage
0.8 V
CC
V
CC
V
0.8 V
DD
V
DD
V
IL
Low-Level Input Voltage
-0.3
0.2 V
CC
V
-0.3
0.2 V
DD
V
I
IH
High-Level Input Current
-10
10
A
I
IL
Low-Level Input Current
-10
10
A
Input Capacitance
3
pF
Rise/Fall Time
30
ns
V
OH
High-Level Output Voltage
V
CC - 0.4
V
DD - 0.4
V
OL
Low-Level Output Voltage
0.4
V
Output Capacitance
5pF
MICROWIRE INTERFACE TIMING
t
CS
Data to Clock Set Up Time
50
ns
t
CH
Data to Clock Hold Time
10
ns
t
CWH
Clock Pulse Width HIGH
50
ns
t
CWL
Clock Pulse Width LOW
50
ns
t
ES
Clock to Latch Enable Set Up Time
50
ns
t
EW
Latch Enable Pulse Width
50
ns
Note 6: The reference frequency must also be programmed using the OSC_FREQ control bit. For other reference frequencies, please contact National
Semiconductor.
Note 7: For other frequency ranges, please contact National Semiconductor.
Note 8: Lock time is defined as the time difference between the beginning of the frequency transition and the point at which the frequency remains within +/-1 kHz
of the final frequency.
Note 9: Lock time is defined as the time difference between the beginning of the frequency transition and the point at which the frequency remains within +/-3 kHz
of the final frequency.
Note 10: All limits are guaranteed. All electrical characteristics having room temperature limits are tested during production with TA = 25 C or correlated using
Statistical Quality Control (SQC) methods. All hot and cold limits are guaranteed by correlating the electrical characteristics to process and temperature variations
and applying statistical process control.
LMX2515
www.national.com
6
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