lmx9820sbx National Semiconductor Corporation, lmx9820sbx Datasheet - Page 10

• Manufacturer Part Number: lmx9820sbx
• Description: Bluetooth Serial Port Module
• Manufacturer: National Semiconductor Corporation

www.national.com
6.0 Electrical Specifications
6.3 RF PERFORMANCE CHARACTERISTICS
In the performance characteristics tables the following
applies:
• All tests performed are based on Bluetooth Test Specifi-
1.
2.
3.
4.
5.
Symbol
RX
PinRF
C/I
C/I
C/I
C/I
1MHz
IMP
Z
Return Loss
OOB
OOB
cation rev 0.91.
RFIN
CCI
ACI
IMAGE
IMAGE
Typical operating conditions are at 3.3V operating voltage and 25° C ambient temperature.
The receiver sensitivity is measured at the device interface.
The f
and |f
Reference Smith Chart Figure 8 on page 13.
Reference chart Figure 9 on page 14.
sense
3
4
2
0
2
=-64dBm Bluetooth modulated signal, f
-
-f
1
5
|=n*1MHz, where n is 3,4 or 5. For the typical case, n = 3.
Parameter
Receive Sensitivity
Maximum Input Level
Carrier to Interferer Ratio
in the Presence of Co-
channel Interferer
Carrier to Interferer Ratio
in the Presence of Adja-
cent Channel Interferer
Image Frequency
Interference
Image Frequency
Interference
Intermodulation
Interference Performance
Input Impedance of RF
Port (RF_inout)
Return Loss
Out Of Band Blocking
Performance
Out Of Band Blocking
Performance
(Continued)
Table 14. Receiver Performance Characteristics
(Continued)
Condition
BER < 0.001
P
BER < 0.001
P
BER < 0.001
P
BER < 0.001
P
BER < 0.001
P
BER < 0.001
PinRF = -67 dBm,
BER < 0.001
F
F
P
Single input impedance
F
P
30 MHz < F
BER < 0.00
P
2000 MHz < F
BER < 0.001
P
2498 MHz < F
BER < 0.001
P
3000 MHz < F
BER < 0.001
F
F
F
F= - 2 MHz,
f = -3 MHz,
1
2
in
in
in
in
in
in
in
in
in
in
in
1
= + 3 MHz,
= + 6 MHz,
ACI
ACI
ACI
=-39dBm sine wave, f
RF = -60 dBm,
RF = -60 dBm,
RF = -60 dBm,
RF = -67 dBm,
RF = -67 dBm,
RF = -64 dBm
RF = -10 dBm,
RF = -27 dBm,
RF = -27 dBm,
RF = -10 dBm,
= 2.5 GHz
= + 1 MHz,
= + 2 MHz.
= + 3 MHz,
CWI
10
CWI
CWI
CWI
• All tests are measured at antenna port unless otherwise
• T
• VCC = 3.3V unless otherwise specified
• RF system performance specifications are guaranteed
< 2 GHz,
< 12.75 GHz,
< 2399 MHz,
< 3000 MHz,
specified
on National Semiconductor Austin Board rev1.0b refer-
ence design platform.
A
2.402 GHz
2.441 GHz
2.480 GHz
= -40°C to +85° C
2
=-39dBm Bluetooth modulated signal, f
Min
-20
-39
-10
-27
-27
-10
Typ
-77
-77
-77
-42
-46
-20
-32
-31
50
-3
0
9
1
Max
-74
-74
-74
-30
-40
-20
11
-9
-8
0
0
=2f
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Unit
dBm
dB
dB
dB
dB
dB
dB
dB
1
-f
2
,