CC8520_11 Datasheet, PDF (4/18 Pages) Texas Instruments – 2.4 GHz RF SoC FOR WIRELESS DIGITAL AUDIO STREAMING

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CC8520, CC8521, CC8530 & CC8531
SWRS091D – JULY 2011
GENERAL CHARACTERISTICS
Measured on Texas Instruments CC85xxEM reference designs with TA = 25°C and VDD = 3.3 V, unless otherwise noted.
PARAMETER
TEST CONDITION
MIN
TYP
MAX
RF frequency range
2400
2483.5
Data rate
Audio latency
Shaped 8FSK
Latency between I2S interface on audio source
and I2S interface on audio sink. Uncompressed
16 bit. Audio latency is programmable using the
768
PurePath Wireless Configurator [1].
Audio sample rate
Audio sample rate is programmable using the
PurePath Wireless Configurator [1] ⁽¹⁾
(1) _{±2000ppm tolerance}
(2) _{Not supported in USB mode. For USB Headset, dynamic sample rate change is not allowed.}
5
2048
48
44.1
40.275⁽²⁾
32
UNIT
MHz
Mbps
Samples
kHz
ELECTRICAL CHARACTERISTICS, CC8520/CC8521/CC8530/CC8531
Measured on Texas Instruments CC85xxEM reference designs with TA = 25°C and VDD = 3.3 V, unless otherwise noted.
PARAMETER
TEST CONDITION
MIN
TYP
MAX
Current consumption,
Voltage regulator / crystal oscillator off – status
1
power down state
lost (POWERED_DOWN state)
Current consumption, headphone
Average current for a PurePath Wireless master
29
master⁽¹⁾
with I2S interface active, sourcing two PCM16
channels with maximum output power.
Current consumption, headphone
Average current for a PurePath Wireless slave
25
slave⁽¹⁾
with I2S interface active, sinking two PCM16
channels with maximum output power
(1) _{Measured on Texas Instruments CC85xx EM reference designs and CC85XXDK. Sample rate 48 kHz, MCLK disabled.}
UNIT
A
mA
mA
RF CHARACTERISTICS, CC8520/CC8521/CC8530/CC8531
Measured on Texas Instruments CC85xx EM reference designs with TA = 25°C and VDD = 3.3 V, unless otherwise noted.
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
Output power
Receiver sensitivity⁽¹⁾
Saturation (maximum input level) ⁽¹⁾
Maximum output power setting
5 Mbps, 0.1 % BER
5 Mbps, 0.1 % BER
3.5
dBm
-83
dBm
-2
dBm
Selectivity
Adjacent channel, ±4MHz, wanted 3dB above
sensitivity
8
dB
Alternate channel, ±8MHz, wanted 3dB above
sensitivity
35
dB
Occupied bandwidth
99% energy bandwidth
3.8
MHz
Optimum load impedance
Spurious emission
Differential impedance seen from the RF port
70 + j30
Ω
(RF_P and RF_N) towards the antenna
Suitable for systems targeting compliance with EN 300 328, EN 300 440⁽²⁾, FCC CFR47 Part 15
and ARIB STD-T-66
(1) _{Measured using data packets with 40 byte payload.}
(2) _{Systems with external antenna connector: Margins for passing conducted requirements at sub 1GHz frequencies can be improved by}
using a simple band-pass filter connected between matching network and RF connector (1.6 pF in parallel with 1.6 nH); this filter must be
connected to a good RF ground.
4
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