CC2544_15 Datasheet, PDF (8/29 Pages) Texas Instruments – System-on-Chip for 2.4-GHz USB Applications

CC2544
SWRS103D – JUNE 2011 – REVISED MAY 2012
RSSI CHARACTERISTICS
Measured on Texas Instruments CC2544 EM reference design with T_A = 25°C and VDD = 3 V
PARAMETER
TEST CONDITIONS
MIN
2 Mbps, GFSK, 320-kHz Deviation, 0.1% BER and 2 Mbps, GFSK, 500-kHz Deviation, 0.1% BER
RSSI range⁽¹⁾
RSSI offset⁽¹⁾
Absolute uncalibrated accuracy⁽¹⁾
Step size (LSB value)
All Other Rates/Formats
RSSI range⁽¹⁾
RSSI offset⁽¹⁾
Absolute uncalibrated accuracy⁽¹⁾
Step size (LSB value)
(1) Assuming CC2544 EM reference design. Other RF designs give an offset from the reported value.
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TYP
MAX UNIT
60
dB
97
dBm
±6
dB
1
dB
60
dB
101
dBm
±3
dB
1
dB
FREQUENCY SYNTHESIZER CHARACTERISTICS
Measured on Texas Instruments CC2544EM reference design with T_A = 25°C, VDD = 3.3 V, VBUS tied to 5 V, unless
otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
At ±1 MHz from carrier
–112
Phase noise, unmodulated carrier At ±2 MHz from carrier
–119
dBc/Hz
At ±5 MHz from carrier
–124
USB BUS 5-V to 3.3-V REGULATOR
Measured on Texas Instruments CC2544EM reference design with T_A = 25°C, VDD = 3.3 V, VBUS tied to 5 V, unless
otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input voltage, typical minimum
4
V
Input voltage, typical maximum
5.45
V
Current limit
100
mA
Start-up time
0.8
ms
Output voltage
3.3
V
8
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