Вот немного инфы о Zenithink C71a. За Wi-Fi/BT4.0/FM/GPS отвечает маленький модуль
AP6476
Сразу прошу прощение за качество описания, просто как есть в оригинале
Про Wi-Fi
WiFi RF Specification
2.4GHz RF Specification
Conditions : VBAT=3.6V ; WL_ VIO=3.3V; BT_VIO=1.8V ; Temp:25°C Feature WLAN Standard Frequency Range Number of Channels Modulation
Description
IEEE 802.11b/g/n, WiFi compliant
2.400 GHz ~ 2.497 GHz (2.4 GHz ISM Band) 2.4GHz：Ch1 ~ Ch14
802.11b : DQPSK, DBPSK, CCK
802.11 g/n : OFDM /64-QAM,16-QAM, QPSK, BPSK 802.11b /11Mbps : 16 dBm ± 1.5 dB @ EVM ≤ -9dB
Output Power
802.11g /54Mbps : 15 dBm ± 1.5 dB @ EVM ≤ -25dB 802.11n /65Mbps : 14 dBm ± 1.5 dB @ EVM ≤ -28dB - MCS=0 - MCS=1
Receive Sensitivity (11n,20MHz) @10% PER
- MCS=2 - MCS=3 - MCS=4 - MCS=5 - MCS=6 - MCS=7 - 6Mbps - 9Mbps - 12Mbps
Receive Sensitivity (11g)- 18Mbps @10% PER
- 24Mbps - 36Mbps - 48Mbps - 54Mbps - 1Mbps
Receive Sensitivity (11b)- 2Mbps @8% PER
- 5.5Mbps - 11Mbps
PER @ -85 dBm, typical PER @ -84 dBm, typical PER @ -82 dBm, typical PER @ -80 dBm, typical PER @ -77 dBm, typical PER @ -73 dBm, typical PER @ -71 dBm, typical PER @ -69 dBm, typical PER @ -86 dBm, typical PER @ -85 dBm, typical PER @ -85 dBm, typical PER @ -83 dBm, typical PER @ -81 dBm, typical PER @ -78 dBm, typical PER @ -73 dBm, typical PER @ -72 dBm, typical PER @ -90 dBm, typical PER @ -89 dBm, typical PER @ -88 dBm, typical PER @ -85 dBm, typical
Data Rate Data Rate
(20MHz ,Long GI,800ns) Data Rate
(20MHz ,short GI,400ns) Maximum Input Level Antenna Reference
802.11b : -10 dBm 802.11g/n : -20 dBm
Small antennas with 0~2 dBi peak gain
802.11n : 7.2, 14.4, 21.7, 28.9, 43.3, 57.8, 65,72.2Mbps 802.11b : 1, 2, 5.5, 11Mbps
802.11g : 6, 9, 12, 18, 24, 36, 48, 54Mbps 802.11n: 6.5, 13, 19.5, 26, 39, 52, 58.5, 65Mbps
Про блютуз
Bluetooth Specification
Conditions : VBAT=3.6V ; WL_ VIO=3.3V; BT_VIO=1.8V ; Temp:25°C Feature
Description
General Specification Bluetooth Standard Bluetooth V4.0 of 1, 2 and 3 Mbps. Host Interface UART
Antenna Reference Small antennas with 0~2 dBi peak gain Frequency Band 2.400 GHz ~ 2483.5 GHz Number of Channels 79 channels
Modulation FHSS, GFSK, DPSK, DQPSK
RF Specification
Min. Typical. Max.
Output Power (Class 1.5) 10 Output Power (Class 2) 2 Sensitivity @ BER=0.1% for GFSK (1Mbps) -86 Sensitivity @ BER=0.01% for π/4-DQPSK (2Mbps) -86 Sensitivity @ BER=0.01% for 8DPSK (3Mbps)
-80
GFSK (1Mbps):-20dBm Maximum Input Level π/4-DQPSK (2Mbps) :-20dBm 8DPSK (3Mbps) :-20dBm
Про FM
FM Specification (TBD)
Conditions : VBAT=3.6V ; WL_VIO=3.3V; BT_VIO=1.8V ; Temp:25°C Feature
General Specification Frequency Band Host Interface Channel step
76MHz-108MHz HCI UART, I2S/PCM 50 KHz Description
Analog Audio output loadRL>30KΩ, CL>20pF Characteristics
Condition
Output Power Level Audio harmonic
(fmod=1KHz, △Pilot △f=6.75KHz)
Audio SNR
MONO
(△f=22.5KHz, I2S audio 57dB )
RDS Sensitivity Audio
harmonic
fmod=1KHz
in
SNR≧
Stereo
%
dB
Stereo
dBuV
dB
dBm
distortion f=75KHz,
MIN TYP MAX UNIT
dBuV%
Transmitter
(FM Tx load = 120nH, Q>30)
Receiver
(FM Tx Antenna = 120nH, Q>30)
distortion
fmod=
(Vin=1mV, △f=75KHz)
3KHz Maximum SNR (fmod=1KHz,f=22.5KHz,
BW=300Hz to 15KHz) RF input power level
△
MONO
Про GPS
GPS Specification
Conditions : VBAT=3.6V ; BT_VIO=1.8V ; Temp:25°C Feature
General Specification Frequency Band Host Interface Number of Channels Antenna Gain Sensitivity Characteristics C/N
Autonomous Cold Start
1575.42 MHz HCI UART 20 Channels 1.5~5 dBi
Cold Start -140dBm, Hot Start -150dBm,Tracking -155dBm Condition
w/o LNA @ -130 dBm Average TTFF@ -130 dBm
Min 35
TYP
MAX 50 45 3
UNIT s s s
Description
Autonomous Warm Start Average TTFF@ -130 dBm Autonomous Hot Start
Average TTFF @ -130 dBm