參數(shù)資料
型號(hào)： LMX2502LQ1635
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： XO, clock
英文描述： PLLatinum⑩ Frequency Synthesizer System with Integrated VCO
中文描述： PLL FREQUENCY SYNTHESIZER, 19.68 MHz, QCC28
封裝： 5 X 5 MM, 0.75 MM HEIGHT, LLP-28
文件頁(yè)數(shù)： 4/18頁(yè)
文件大?。?/td> 184K
代理商： LMX2502LQ1635
Absolute Maximum Ratings
2, 3)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Notes 1,
Parameter
Supply Voltage
Voltage on any pin
to GND
Symbol
V
CC
, V
DD
-0.3 to 3.6
V
I
Ratings
Units
V
V
V
C
-0. 3 to V
CC
+0.3
-0. 3 to V
DD
+0.3
-65 to 150
Storage Temperature
Range
T
STG
Recommended Operating
Conditions
Parameter
Ambient Temperature
Supply Voltage (to GND) V
CC
, V
DD
2.7
Symbol
T
A
Min Typ Max Units
-30 25
85
3.3
C
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to
the device may occur. Recommended Operating Conditions indicate condi-
tions for which the device is intended to be functional, but do not guarantee
specific performance limits. For guaranteed specifications and test condi-
tions, refer to the Electrical Characteristics section. The guaranteed specifi-
cations apply only for the conditions listed.
Note 2:
This device is a high performance RF integrated circuit with an ESD
rating
<
2 kV and is ESD sensitive. Handling and assembly of this device
should be done at ESD protected work stations.
Note 3:
GND = 0 V.
Electrical Characteristics
(V
CC
= V
DD
= 2.8 V, T
A
= 25 C; unless otherwise noted)
Symbol
I
CC
PARAMETERS
I
CC
+ I
DD
(I
CC
+
I
DD
)
RF
I
PD
Parameter
Condition
Min
Typ
Max
Units
Total Supply Current
RF PLL Total Supply Current
OB_CRL [1:0] = 00
OB_CRL [1:0] = 00
17
16
19
18
mA
mA
Power Down Current (Note 4)
CE = LOW or
RF_EN = 0
IF_EN = 0
20
μA
REFERENCE OSCILLATOR PARAMETERS
f
OSCin
Reference Oscillator Input Frequency
(Note 5)
V
OSCin
Reference Oscillator Input Sensitivity
RF VCO
f
RFout
Frequency Range
(Note 6)
19.20 MHz and 19.68
MHz are supported
19.20
19.68
MHz
0.2
V
CC
Vp-p
LMX2502LQ1635
LMX2512LQ0967
LMX2512LQ1065
RF VCO
1619.62
954.42
1052.64
-2
-5
-7
-9
1649.62
979.35
1077.57
4
1
-1
-3
800
MHz
MHz
MHz
dBm
dBm
dBm
dBm
μs
P
RFout
RF Output Power
OB_CRL [1:0] = 11
OB_CRL [1:0] = 10
OB_CRL [1:0] = 01
OB_CRL [1:0] = 00
30 MHz Band for RF
PLL
25 MHz Band for RF
PLL
25 MHz Band for RF
PLL
1
-2
-4
-6
500
Lock Time
(Note 7)
LMX2502LQ1635
LMX2512LQ0967
500
800
μs
LMX2512LQ1065
500
800
μs
Reference Spurs
RMS Phase Error
Phase Noise
-75
dBc
RF PLL in all band
@
100 kHz offset
@
1.25 MHz offset
@
100 kHz offset
@
900 kHz offset
@
100 kHz offset
@
900 kHz offset
1.3
-113
-138
-117
-139
-117
-139
degrees
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc
dBc
L(f)
RFout
LMX2502LQ1635
-112
-136
-115
-138
-115
-138
-25
-20
LMX2512LQ0967
LMX2512LQ1065
2nd Harmonic Suppression
3rd Harmonic Suppression
L
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參數(shù)描述
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