User's Manual

BT860
Datasheet
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www.lairdtech.com/bluetooth
9
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Parameter Min Typ. Max BT. Spec. Unit
1.5 MHz < |M-N| <
2.5 MHz
- - -39 -20 dBm
|M-N| ≧ 2.5 MHz - - -47 -40 dBm
Drift rate - 10 - +/-25 kHz
∆
F
1Avg
- 152 - 140<>175 kHz
∆
F
2Max
100 - - 99.9 %
∆
F
2Avg
/
∆
F
1Avg
- 1.0 - ≧ 0.8
LE
∆
F
1Avg
- 245 - 225<>275 kHz
LE
∆
F
2Max
100 - - 99.9 %
LE
∆
F
2Avg
/
∆
F
1Avg
- 1.0 - ≧ 0.8
Table 7: BDR/EDR/LE receiver sensitivity (Input = 3V3 @ 25° C)
Parameter Conditions Min Typ. Max BT. Spec. Unit
Sensitivity
GFSK, 0.1% BER, 1Mbps -90 -70 dBm
π/4-DQPSK, 0.01% BER, 2Mbps -94 -70 dBm
8-DPSK, 0.01% BER, 3Mbps -87 -70 dBm
GFSK, 30.8% PER, 1Mbps -94 -70 dBm
Sensitivity variation All Modulations (Over BT band) 2 dB
8 I NTERFACE
8.1. Global Coexistence Interface
The BT860 supports the proprietary Cypress Global Coexistence Interface (GCI) which is a 2-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.
Table 8 shows the 2-wire BT coexistence interface assignments.
Table 8: BT GCI Two-Wire Coexistence
Coexistence Signal Name Signal Assignment Pin Number
BT_SECI_IN GPIO_6 B6
BT_SECI_OUT GPIO_7 C6