Inkel IK CSR8645 User Manual
[IK-CSR8645] Bluetooth Module for Audio
Features
- Dual-mode Bluetooth / Bluetooth low energy radio
- Stereo codec with 2 microphone inputs
- Fast Charging support up to 200mA with no external components
- Multipoint support for A2DP connection to 2 A2DP source for music playback
- aptX, SBC, MP3, AAC and Fast stream decoder
- Built-in Reference Clock: 26MHz
- RoHS Compliant
Applications
- Stereo headsets
- Wired stereo headset and headphones
- Portable stereo speakers
Device Overview
Dimensions
RF specification
Parameter (BDR transmitter) Min Typ Max Bluetooth Spec Unit
Maximum Transmit Power - - - -6 ~ +4 dBm
Power Density - - - - dBm
Power Control - -
Frequency Range 2402 - 2480 MHz
20dB Bandwidth for modulation carrier - 925 1000
Adjacent
Channel power
Modulation
Characteristics
Initial Carrier Frequency Tolerance -75 - 75
Carrier Frequency Drift
Parameter (BDR receiver) Min Typ Max Unit
Sensitivity level(at 0.1% BER) - 82 -88
Maximum received signal(at 0.1% BER) - -20 >-10
C/I co-channel - 5 11
Maximum level of intermodulation interface -39 -30 -
Parameter (EDR transmitter) Min Typ Max Unit
Relative transmit power -4 -1 - -4 to 1 dB
π/4 DQPSK max carrier
frequency stability
8 DPSK max carrier
Frequency stability
π/4 DQPSK modulation
8DPSK modulation
Accuracy
In-band spurious
Emissions
F=F0±2MHz
F=F0±3MHz
F=F0±≥3MHz
△F1avg
△F2max
△F2avg/△F1avg
- - 5 20
Single slot packet - 6 25
Five slot packet - 7 40
I ωο I
I ωi I
I ωο+ ωi I
I ωο I
I ωi I
I ωο+ ωi I
RMS DEVM - 6 20
99% DEVM - 12 30
Peak DEVM - 16 35
RMS DEVM - 6 13
99% DEVM - 12 20
Peak DEVM - 15 25
F>F
+3MHz - <-60 -40
0
F< F0-3MHz - <-60 -40
F= F0-3MHz - <-38 -35
F= F0-2MHz - -28 -20
F= F0-1MHz - -32 -26
F= F0+1MHz - -32 -26
F= F0+2MHz - -31 -20
F= F0+3MHz -45 -40
- -36 -20
- -42 -40
- <-60 -40
140 165 175 140<F
115 135 -
0.8 0.9 -
- 1 10
- 1 75
- 2 75
- 1 10
- 1 75
- 1.5 75
≤1000
≤-20
≤-40
≤-40
<175 kHz
zavg
≥115
≥0.80
±75
≤20
≤25
≤40
≤-70
≥-20
≤11
≥-39
≤10 for all blocks
≤75 for all packets
≤75 for all blocks
≤10 for all blocks
≤75 for all packets
≤75 for all blocks
≤20
≤30
≤35
≤13
≤20
≤25
≤-40
≤-40
≤-40
≤-20
≤-26
≤-26
≤-20
≤-40
kHz
dBm
dBm
dBm
kHz
kHz
kHz
kHz
kHz
dBm
dBm
dB
dBm
kHz
kHz
%
dBm
dB
dB
dBm
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