LMX9838SB National Semiconductor, LMX9838SB Datasheet - Page 9

• Manufacturer Part Number: LMX9838SB
• Manufacturer: National Semiconductor

Specifications of LMX9838SB

• Lead Free Status / Rohs Status: Compliant

P
MOD ΔF1
MOD ΔF2
ΔF2
19)
20 dB Bandwidth
P
Z
f
t
Δf
Δf
t
VCO
LOCK
D
RFOUT
OUT
OUT
0
0
Note 17: Typical operating conditions are at 2.75V operating voltage and 25°C ambient temperature.
Note 18: ΔF2max
Note 19: Modulation index set between 0.28 and 0.35.
Note 20: Out-of-Band spurs only exist at 2nd and 3rd harmonics of the CW frequency for each channel.
Note 21: Not tested in production.
Note 22: Frequency accuracy is dependent on crystal oscillator chosen. The crystal must have a cumulative accuracy of < +/-20ppm to meet Bluetooth
specifications.
Note: All RF parameters are tested prior to the antenna.
- Tx
offset (Note 22)
drift (Note 22)
AVG
RF
2*f
/DF1
(Note 21)
o
Symbol
Symbol
(Note 20)
AVG
MAX
AVG
(Note 18)
(Note
≥
115 kHz for at least 99.9% of all Δf2max.
VCO Frequency Range
Lock Time
Initial Carrier Frequency Tolerance
Initial Carrier Frequency Drift
Transmitter Delay Time
Transmit Output Power
Modulation Characteristics
Modulation Characteristics
Modulation Characteristics
PA 2
RF Output Impedance/Input
Impedance of RF Port (RF_inout)
nd
Harmonic Suppression
Parameter
Parameter
Synthesizer Performance Characteristics
Transmitter Performance Characteristics
From Tx data to antenna
Maximum gain setting:
Data = 00001111
Data = 10101010
9
P
During preamble
DH1 data packet
DH3 data packet
DH5 data packet
P
f
0
out
out
Condition
2.402 GHz
2.441 GHz
2.480 GHz
= 2402 MHz,
f
Condition
0
Drift Rate
= 4804 MHz
@ 2.5 GHz
± 20 kHz
2402
Min
140
115
Min
0.8
-75
-25
-40
-40
-20
−4
−4
−4
(Note 15)
Typ
Typ
120
165
125
47
0
0
0
0
0
4
0
0
0
2480
Max
1000
Max
175
75
25
40
40
20
-30
+3
+3
+3
www.national.com
kHz/50µs
MHz
Unit
dBm
dBm
dBm
dBm
Unit
kHz
kHz
kHz
kHz
kHz
kHz
kHz
µs
µs
Ω