CC2564_15 Datasheet, PDF (31/47 Pages) Texas Instruments – Bluetooth® and Dual-Mode Controller

CC256x
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SWRS121D – JULY 2012 – REVISED JANUARY 2014
4.2 Bluetooth BR/EDR RF Performance
All parameters in this section that are fast-clock dependent are verified using a 26-MHz XTAL under a
temperature range from –20°C to 70°C and an RF load of 50 Ω at the BT_RF port.
4.2.1 Bluetooth Receiver—In-Band Signals
Characteristics
Operation frequency range
Channel spacing
Input impedance
Sensitivity, dirty TX on⁽¹⁾
BER error floor at sensitivity +
10 dB, dirty TX off
Maximum usable input power
Intermodulation characteristics
C/I performance⁽²⁾
Image = –1 MHz
RF return loss
RX mode LO leakage
Condition
GFSK, BER = 0.1%
Pi/4-DQPSK, BER = 0.01%
8DPSK, BER = 0.01%
Pi/4-DQPSK
8DPSK
GFSK, BER = 0.1%
Pi/4-DQPSK, BER = 0.1%
8DPSK, BER = 0.1%
Level of interferers (for n = 3, 4, and 5)
GFSK, co-channel
EDR, co-channel
Pi/4-DQPSK
8DPSK
GFSK, adjacent ±1 MHz
EDR, adjacent ±1 MHz, (image)
Pi/4-DQPSK
8DPSK
GFSK, adjacent +2 MHz
EDR, adjacent, +2 MHz
Pi/4-DQPSK
8DPSK
GFSK, adjacent –2 MHz
EDR, adjacent –2 MHz
Pi/4-DQPSK
8DPSK
GFSK, adjacent ≥ |±3| MHz
EDR, adjacent ≥ |±3| MHz
Pi/4-DQPSK
8DPSK
Frf = (received RF – 0.6 MHz)
Min
2402
–91.5
–90.5
–81
1E–6
1E–6
–5
–10
–10
–36
Typ
1
50
–95
–94.5
–87.5
1E–7
Max
2480
Bluetooth
Specification
–70
–70
–70
1E–5
1E–5
–20
Unit
MHz
MHz
Ω
dBm
dBm
–30
–39
dBm
8
10
11
9.5
11
13
16.5
20
21
–10
–5
0
–10
–5
0
–5
–1
5
–38
–35
–30
–38
–35
–30
dB
–38
–30
–25
–28
–20
–20
–28
–20
–20
–22
–13
–13
–45
–43
–40
–45
–43
–40
–44
–36
–33
–10
dB
–63
–58
dBm
(1) Sensitivity degradation up to 3 dB may occur for minimum and typical values where the Bluetooth frequency is a harmonic of the fast
clock.
(2) Numbers show ratio of desired signal to interfering signal. Smaller numbers indicate better C/I performance.
4.2.2 Bluetooth Receiver—General Blocking
Characteristics
Condition
Blocking performance over full range, according to Bluetooth 30 to 2000 MHz
specification ⁽¹⁾
2000 to 2399 MHz
2484 to 3000 MHz
3 to 12.75 GHz
(1) Exceptions are taken out of the total 24 allowed in the Bluetooth specification.
Min
Typ
Unit
–6
–6
dBm
–6
–6
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