CC2544_15 Datasheet, PDF (4/29 Pages) Texas Instruments – System-on-Chip for 2.4-GHz USB Applications

CC2544
SWRS103D – JUNE 2011 – REVISED MAY 2012
www.ti.com
RF RECEIVE SECTION
Measured on Texas Instruments CC2544EM reference design with T_A = 25°C, VDD = 3.3 V, VBUS tied to 5 V, and f_C = 2440
MHz, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
2 Mbps, GFSK, 320-kHz Deviation, 0.1% BER
Receiver sensitivity
Saturation ⁽¹⁾
–84
dBm
0
dBm
Co-channel rejection
Wanted signal at -67 dBm
–15
dB
±2-MHz offset, wanted signal –67 dBm
–5
±4-MHz offset, wanted signal –67 dBm
In-band blocking rejection
±6-MHz offset, wanted signal –67 dBm
30
dB
40
>12-MHz offset, wanted signal –67 dBm
42
1-MHz resolution. Wanted signal –67 dBm, f < 2 GHz
Two exception frequencies with poorer performance
–35
Out-of-band blocking
rejection
1-MHz resolution. Wanted signal –67 dBm, 2 GHz > f < 3
GHz
Two exception frequencies with poorer performance
–36
dBm
1-MHz resolution. Wanted signal –67 dBm, f > 3GHz
Two exception frequencies with poorer performance
–12
Wanted signal –64 dBm, 1^st interferer is CW, 2^nd interferer
is GFSK-modulated signal. Offsets of interferers are:
Intermodulation
6 and 12 MHz
–43
8 and 16 MHz
10 and 20 MHz
dBm
Frequency error
tolerance ⁽²⁾
Including both initial tolerance and drift. Limit set to
minimum sensitivity of –70dBm, 250K byte payload
–300
300
kHz
Symbol rate error
tolerance ⁽³⁾
Limit set to minimum sensitivity of –70 dBm, 250K byte
payload
–120
120
ppm
2 Mbps, GFSK, 500-kHz Deviation, 0.1% BER
Receiver sensitivity
Saturation ⁽¹⁾
–88
dBm
3
dBm
Co-channel rejection
Wanted signal at -67 dBm
-9
dB
±2-MHz offset, wanted signal –67 dBm
-3
±4-MHz offset, wanted signal –67 dBm
In-band blocking rejection
±6-MHz offset, wanted signal –67 dBm
33
dB
49
>12-MHz offset, wanted signal –67 dBm
40
Frequency error
tolerance ⁽²⁾
Including both initial tolerance and drift. Sensitivity better
than –70 dBm. 250-byte payload
–300
300
kHz
Symbol-rate error
tolerance ⁽³⁾
Sensitivity better than –70 dBm. 250-byte payload
–120
120
ppm
1 Mbps, GFSK, 250-kHz Deviation, 0.1% BER
Receiver sensitivity
Saturation ⁽¹⁾
-91
dBm
5
dBm
Co-channel rejection
Wanted signal at –67 dBm
-6
dB
±2-MHz offset, wanted signal –67 dBm
28
±4-MHz offset, wanted signal –67 dBm
In-band blocking rejection
±6-MHz offset, wanted signal –67 dBm
31
dB
40
>12-MHz offset, wanted signal –67 dBm
49
Frequency error
tolerance ⁽²⁾
Including both initial tolerance and drift. Sensitivity better
than –70 dBm. 250-byte payload
–250
250
kHz
Symbol-rate error
tolerance ⁽³⁾
Sensitivity better than –70 dBm. 250-byte payload
–80
80
ppm
(1) AGC enabled
(2) Difference between center frequency of the received RF signal and local oscillator frequency
(3) Difference between incoming symbol rate and the internally generated symbol rate
4
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