參數(shù)資料
型號： LMX9820A
廠商： National Semiconductor Corporation
英文描述： Bluetooth Serial Port Module
中文描述： 藍(lán)牙串行端口模塊
文件頁數(shù)： 11/44頁
文件大小： 579K
代理商： LMX9820A
Revision 1.0
11
www.national.com
L
6.0 Electrical Specifications
(Continued)
4.
The f
0
= -64 dBm Bluetooth modulated signal, f
1
= -39 dbm sine wave, f
2
= -39 dBm Bluetooth modulated signal,
f
0
= 2f
1
- f
2
, and |f
2
- f
1
| = n x 1 MHz, in which n is 3, 4, or 5. For the typical case, n = 3.
Table 15. Transmitter Performance Characteristics
Symbol
Parameter
Condition
Min
Typ
1
Max
Unit
P
OUT
RF
2
Transmit Output Power
2.402 GHz
-3
+1
+4
dBm
2.441 GHz
-3
+1
+4
dBm
2.480 GHz
-3
+1
+4
dBm
Power Density
5
Power Density
-4
1
2
dBm
MOD
F1
AVG
Modulation Characteristics
Data = 00001111
140
165
175
kHz
MOD
F2
MAX
3
Modulation Characteristics
Data = 10101010
115
125
kHz
F2
AVG
/
F1
AVG
4
Modulation Characteristics
0.8
20 dB Bandwidth
1000
kHz
ACP
5
Adjacent Channel Power
(In-band Spurious)
| M - N | = 2
-48
-20
dBm
| M - N | > 3
-51
-40
dBm
P
OUT
2*f
o
6
PA 2
nd
Harmonic
Suppression
Maximum gain setting:
f
0
= 2402 MHz,
P
out
= 4804 MHz
-30
dBm
P
OUT
3*f
o
5
PA 3
rd
Harmonic
Suppression
Maximum gain setting:
f
0
= 2402 MHz,
P
out
= 7206 MHz
-32
dBm
Z
RFOUT
RF Output Impedance/Input
Impedance of RF Port
(RF_inout)
P
out
@ 2.5 GHz
50
Return Loss
5
Return Loss
-14
dB
1.
2.
3.
4.
5.
6.
Typical operating conditions are at VCC = 3.3V, IOVCC = 3.3V operating voltage and 25°C ambient temperature.
The output power is measure at the device interface.
F2max > 115 kHz for at least 99.9% of all
f2max.
Modulation index set between 0.28 and 0.35.
Not tested in production.
Out-of-Band spurs only exist at 2nd and 3rd harmonics of the CW frequency for each channel.
Table 16. Synthesizer Performance Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Unit
f
VCO
VCO Frequency Range
5000
MHz
t
LOCK
Lock Time
f
0
+ 20 kHz
120
μs
f
0
offset
1,2
Initial Carrier Frequency Tolerance
During preamble
-75
0
75
kHz
f
0
drift
2,3
Initial Carrier Frequency Drift
DH1 data packet
-25
0
25
kHz
DH3 data packet
-40
0
40
kHz
DH5 data packet
-40
0
40
kHz
Drift Rate
-20
0
20
kHz/50μs
t
D
-Tx
Transmitter Delay Time
From Tx data to antenna
4
μs
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