Specifications

BT module Specification of LM-Q21-3031/3021 (based on QCC3031/3021)
深圳蓝奥声科技有限公司 Fax: [phone] Tel: [phone] Postcode: 518110
A1111-1113 Yinxing Hi-tech Building, No 1301 Guanguang Rd., Guanlan St., Longhua New Dist., Shenzhen, China
深圳市龙华新区观澜观光路 1301 号银星科技大厦 8 楼 C802
Page
8
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14
IEC-61000-4-2 (device level) ESD
Protection
22
PIO4
Digital: Bidirectional with
programmable strength
internal pullup/pull-down h
internal pullup/pull-down
Programmable I/O line 4
TBR_MOSI[1]
23
PIO3
Digital: Bidirectional with
programmable strength
internal pullup/pull-down
Programmable I/O line 3
TBR_MISO[2]
24
PIO15
Digital: Bidirectional with
programmable strength
internal pull up/pull-down
Programmable I/O line 15
MCLK_OUT
25
LED2/AIO2
Analog or digital
input/open drain output
General-purpose analog/digital
input or open drain LED output.
26
LED0/AIO0
Analog or digital
input/open drain output
General-purpose analog/digital
input or open drain LED output.
27
LED1/AIO1
Analog or digital
input/open drain output
General-purpose analog/digital
input or open drain LED output.
28
VCHG
Supply
Charger input
29
VBAT
Supply
Battery voltage input.
30
MIC_BIAS
Analogue in
Mic bias output.
31
MIC2_P
Analogue in
Microphone differential 2 input,
positive
Differential audio line
input right, positive
32
MIC2_N
Analogue in
Microphone differential 2input,
negative
Differential audio line
input left, negative
33
MIC1_P
Analogue in
Microphone differential 1 input,
positive
Differential audio line
input right, positive
34
MIC1_N
Analogue in
Microphone differential 1input,
negative
Differential audio line
input left, negative
35
SPKR+
Analogue out
Audio/speaker differential right
output, negative
Differential right line
output, negative
36
SPKR-
Analogue out
Audio/speaker differential right
output, positive
Differential right line
output, positive
37
SPKL+
Analogue out
Audio/speaker differential left
output, negativeoutput, negative
Differential left line
output, negativeline
output, negative
38
SPKL-
Analogue out
Audio/speaker differential left
output, positive
Differential left line
output, positive
39
GND
Ground
Ground connections.