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BT85x Series
Datasheet
Parameter
Initial Carrier Frequency Tolerance
20 dB Bandwidth
In-Band Spurious
Emissions
Drift rate
∆F 1Avg
∆F 2Max
∆F 2Avg / ∆F 1Avg
LE ∆F 1Avg
LE ∆F 2Max
LE ∆F 2Avg / ∆F 1Avg
Table 7: BDR/EDR/LE receiver sensitivity (Input = 3V3 @ 25
Parameter
Sensitivity
Sensitivity variation
8 I
NTERFACE
8.1. Global Coexistence Interface
The BT850-Sx supports the proprietary Cypress Global Coexistence Interface (GCI) which is a two-wire interface.
The following key features are associated with the interface:
Enhanced coexistence data can be exchanged over GCI_SECI_IN and GCI_SECI_OUT a two-wire interface,
one serial input (GCI_SECI_IN), and one serial output (GCI_SECI_OUT). The both pins are controlled by the
configuration file that is stored in EEPROM from the host.
It supports generic UART communication between WLAN and Bluetooth devices.
To conserve power, it is disabled when inactive.
It supports automatic resynchronization upon waking from sleep mode.
It supports a baud rate of up to 4 Mbps.
Error! Reference source not found.
Table 8: BT GCI two-wire coexistence
Coexistence Signal Name
BT_SECI_IN
BT_SECI_OUT
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
1.0 MHz < |M-N| < 1.5 MHz
1.5 MHz < |M-N| < 2.5 MHz
|M-N| ≧ 2.5 MHz
℃ ℃ ℃ ℃
)
Conditions
GFSK, 0.1% BER, 1Mbps
π/4-DQPSK, 0.01% BER, 2Mbps
8-DPSK, 0.01% BER, 3Mbps
GFSK, 30.8% PER, 1Mbps
All Modulations (Over BT band)
shows the 2-wire BT coexistence interface assignments.
Signal Assignment
© Copyright 2017 Laird. All Rights Reserved
Min
Typ.
Max
-
10
-
920
-
-
-39
-
-
-39
-
-
-47
-
10
-
152
100
-
-
1.0
-
245
100
-
-
1.0
Min
Typ.
-90
-94
-87
-94
2
GPIO_6
GPIO_7
9
BT. Spec.
Unit
-
± 7 5
kHz
-
1000
kHz
-26
dBc
-20
dBm
-40
dBm
-
+/-25
kHz
-
140<>175
kHz
-
99.9
%
≧ 0.8
-
-
225<>275
kHz
-
99.9
%
≧ 0.8
-
Max
BT. Spec.
-70
-70
-70
-70
Pin Number
B6
C6
Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
Unit
dBm
dBm
dBm
dBm
dB
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